Simulated Moving Bed Technology

Simulated Moving Bed Technology 1. Introduction 1.1. Continuous counter current chromatography Continuous industrial-scale adsorption processes are well known for their efficiency. Very often, the Height Equivalent of a Theoretical Plate (HETP) in a batch operation is roughly three times higher than one find for the continuous mode (Gembicki et al., 2002). The operation of continuous chromatographic counter current apparatus (here-by referred as True Moving Bed, TMB) in particular, maximizes the mass transfer driving force providing a better utilization of the adsorbent, and thus, allowing the use of lower selectivity materials (Ruthven and Ching, 1989) as to operate with an increased productivity (i.e., higher processed throughput using less packing material). A scheme of a TMB unit is shown in Figure 1. Figure 1 A four section True Moving Bed (TMB) unit for the separation of A and B with D as eluent or desorbent (Fructose/Glucose separation). If we define section as the part of the TMB unit where the fluid flow rate is approximately constant (section limited by inlet/outlet streams), then, it is possible to find four different sections with different roles: Section I: Regeneration of the adsorbent (desorption of A from the solid); Section II: Desorption of B (so that, the extract is not contaminated by the less retained component); Section III: Adsorption of A (raffinate clean from the more adsorbed species); Section IV: Regeneration of the eluent/desorbent (adsorption of B from the fluid phase). From Figure 1, one can observed that the counter-current movement of the solid, with respect to the fluid phase, allows continuous regeneration of both the adsorbent in section I as the eluent/desorbent in section IV. Also, the moving bed arrangement allows the achievement of high purity even if the resolution of the two peaks is not excellent, since only the purity at the two tails of the concentration profiles, where the withdrawal ports are located, is of interest. This is contrary to batch chromatography where high resolution is vital in order to achieve high purity. Nevertheless, with this counter current mode of operation is necessary to circulate not only the fluid phase but also the solid. The solid motion inside of the column and the consequent recycle presents some technical problems, namely: equipment abrasion, mechanical erosion of adsorbent and difficulties in maintaining plug flow for the solid (especially in beds with large diameter). From a technical point of view, this clearly limits the implementation of such technology. 1.2. The Simulated Moving Bed (SMB) concept In order to avoid this issue, a sequence of fixed bed columns was conceived (Broughton and Gerhold, 1961) in which the solid phase is at rest in relation to a fixed referential, but where a relative movement between both phases is experienced by switching the inlet and outlet fluid streams to and from the columns from time to time (in the direction of the fluid flow). In the simplest operating mode, the period that a certain operating configuration prevails is called the switching time, . Since the solid flow is avoided, although a kind of counter-current movement is created relatively to the fluid, this technology is called Simulated Moving Bed (SMB). Consider that at certain moment in the operation of an SMB, the positions for the inlet of feed and desorbent and outlet of products is represented by Figure 2a. Assume also the simplest operating mode (synchronous advance of all streams) and one column per section. After a period of time equal to the switching time, the injection and withdrawn points all move one column in the direction of the fluid flow (Figure 2b). When the initial location of injection/collection of all the streams is reencountered, we have completed one cycle (in a four equally zoned SMB, it takes to complete one cycle, where is the number of columns in each one of the four sections). As it is possible to see in Figure 2, during one cycle the same column is in different sections, assuming therefore different roles in the separation process. Figure 2 Schematic representation of a 4 columns SMB unit operating over a complete cycle, from 0to (with representing the ports switching time); (a) period of the first switch; (b) period of the second switch and (c) a TMB unit. As mentioned before, the continuous movement of inlet and outlet lines into and from the column is almost impractical, therefore discreet jumps (with the length of one bed, during ) have to be applied. The analogy between SMB and the TMB is then possible by the introduction of the relative velocity concept, where , with the fluid interstitial velocity in each section in the TMB, the interstitial velocity in the SMB unit and the solid interstitial velocity in the TMB. The solid velocity is evaluated from the switching time interval value in the SMB as , being the column length. As consequence, The internal flow rates in both apparatus are not the same, but related by where and represent the internal liquid flow-rates in the SMB and TMB, respectively, is the bulk porosity and the column volume. 1.3. SMB Applications Industrially, SMB applications can be regarded as â€Å"Old† and â€Å"New†, associated with petrochemical and pharmaceutical/fine chemistry fields, respectively (Sà ¡ Gomes et al., 2006d). Among the first applications of SMB technology (back to 1960s) are the ones implemented by the UOP Inc. (Des Plaines, IL-USA) with the Sorbex ® processes, such as: the Parex ® unit for separation of p-xylene from mixtures with its C8-isomers (Broughton et al., 1970), separation also performed by the Aromax ® process from Toray Industries (Tokyo, Japan) (Otani et al., 1973) and the Eluxyl ® process by Axens/IFP (Institut Franà §ais du Pà ©trole, France) (Ash et al., 1994); the Ebex ® for the separation of EthylBenzene (EB) from a mixed of C8-aromatic isomers (Broughton, 1981); the Molex ® for the separation of n-paraffins from branched and cyclic hydrocarbons; and the Olex ® process to separate olefins from parafins; the Cresex ® and Cymex ® for the separation of p-cresol and p-cymene from its isomers, respectively. The application of SMBs in the sugar industry is also substantial, with the Sarex ® process, for the separation of fructose from the corn syrup with dextrose and polysaccharides on polystyrene-divinylbenzene resins in calcium form (Broughton, 1983); or as patented by Japan Organo Co. (Japan), (Heikkilà ¤ et al., 1989); by Amalgamated Sugar Company LLC, also known as the Snake River Sugar Company (Boise, ID-USA), (Kearney and Mumm, 1990, , 1991). In the last decade, particularly in the area of drug development, the advent of SMB has provided a high throughput, high yield, solvent efficient, safe and cost effective process option. Although it had long been established as a viable, practical, and cost-effective liquid-phase adsorptive separation technique, the pharmaceutical and biomolecule separations community did not show considerable interest in SMB technology until the mid-1990s. The application of the SMB concept to the fine chemical separations in the earlier 90s, led to the second â€Å"boom† on the number of applications of SMB technology (Negawa and Shoji, 1992; Nicoud et al., 1993; Kusters et al., 1995; Rodrigues et al., 1995; Cavoy et al., 1997; Francotte and Richert, 1997; Guest, 1997; Pais et al., 1997a; Pais et al., 1997b; Francotte et al., 1998; Grill and Miller, 1998; Lehoucq et al., 1998; Pais et al., 1998; Dapremont et al., 1999; Miller et al., 1999; Nagamatsu et al., 1999; Nicoud, 1999a, 1999b; Pedefe rri et al., 1999; Strube et al., 1999; Juza et al., 2000; Kniep et al., 2000; Wang et al., 2001), among other â€Å"pioneers†. Daicel Chemical Industries, Ltd (Japan) first published the resolution of optical isomers through SMB (Negawa and Shoji, 1992). Since then, several are the SMB based processes already approved by the Food and Drug Administration (FDA) and others regulatory agencies. Examples includes renowned products such as: Biltricide (Praziquantel) Cipralex/Lexapro (Escitalopram), Keppra (Levetiracetam), Modafinil/Provigil, Taxol (Paclitaxel), Xyzal (Levocetirizine), Zoloft (Sertraline), Zyrtec (Cetirizine), Celexa/Citrol/Cipram (Citalopram), Prozac (Fluoxetine hydrochloride), (Abel and Juza, 2007) o paper de real SMB e rajendran, among others biological separation, with a particular emphasis in protein separations meteer referencias a biologias e proteinas. Given the importance of such technique, this work reviews different operating SMB modes; design, modeling and optimization techniques; and addresses an example of the design, construction and operation of an SMB unit. 2. SMB modes of operation So far, only the so-called conventional SMB mode of operation has been considered, which indeed means that each section has a fixed number of columns and there is no variation on the pre-established inlet/outlet flow rates or the switching time value. However, over the last decades some non-conventional SMB operating modes were proposed, developing the range of the applications of SMB technology and extending further its potential. Some of these operating modes, worthy of note, are listened in the following Sections. 2.1. Asynchronous shifting SMB (the Varicol ® process) The asynchronous shifting SMB or Varicol ® process (Adam et al., 2000; Bailly et al., 2000; Ludemann-Hombourger et al., 2000; Ludemann-Hombourger et al., 2002) commercialized by Novasep (Pompey, France), became one of the more studied and used processes of the so-called non-conventional SMB modes of operation. Instead of a fixed unit configuration with constant section length, the Varicol ® operating mode is performed by the implementation of an asynchronous inlet/outlet ports shift, providing a flexible use of each section length, Figure 3. Figure 3 [11.51.51] Asynchronous SMB for a complete cycle; section II has 1 column during the first half of the switching time and 2 columns in the remaining time (within a switching time period), thus 1.5 columns; the opposite happens to section III. By means of Varicol ® mode of operation it is possible to increase the productivity value up to 30% more than the classical SMB apparatus, principally when operating under a reduced number of columns (Toumi et al., 2002; Zhang et al., 2002b; Pais and Rodrigues, 2003; Subramani et al., 2003b, 2003a; Toumi et al., 2003; Yu et al., 2003b; Sà ¡ Gomes et al., 2006d; Mota et al., 2007b; Rodrigues et al., 2007a; Sà ¡ Gomes et al., 2007b; Zhang et al., 2007). 2.2. Partial-Feed, Partial-Discard With the Partial-Feed mode of operation two additional degrees of freedom are introduced: the feed length and the feed time (Zang and Wankat, 2002a; Zang and Wankat, 2002b). Feed during a given feed length period will consequently influence the raffinate and extract flow rates are along the time. Also referred in the literature is the Partial-Discard (or partial withdraw) operating mode, where just a part of the outlet products is used in order to improve the overall purity (Zang and Wankat, 2002b; Bae and Lee, 2006), or with the partial recirculation of the outlet products back to the feed (Kessler and Seidel-Morgenstern, 2008a; Kessler and Seidel-Morgenstern, 2008b; Seidel-Morgenstern et al., 2008). The ISMB (Improved SMB) mode of operating, commercialized by the Nippon Rensui Co. (Tokyo, Japan) and FAST â€Å"Finnsugar Applexion Separation Technology†, now Novasep-France, is also well known (Tanimura et al., 1989). In this process, during a first step the unit is operated as a conventional SMB but without any flow in section IV; in the second step the inlet and outlet ports are closed and the internal flow through the four sections allowing the concentration profiles to move to adjust their relative position with respect to the outlet ports (Rajendran et al., 2009). Meter referencias do mazzotti e nova de sa gomes Another novel non-conventional mode of operation, the Outlet Swing Stream-SMB (OSS) (Sà ¡ Gomes and Rodrigues, 2007), was developed under the framework of this thesis and is latter detailed in Chapter 3. 2.3. PowerFeed and ModiCon The modulation of the section flow rates (PowerFeed) was originally proposed by Kearney and Hieb (1992) and later studied in detail by other authors (Kloppenburg and Gilles, 1999b; Zhang et al., 2003b; Zhang et al., 2004b; Kawajiri and Biegler, 2006b). Another SMB operating concept, based on the feed concentration variation within one switching interval, was suggested by Schramm et al., (2002; 2003b) known as the ModiCon. The use of auxiliary feed tanks, where section flow rate flows into a tank to dissolve solid raw materials and fed into section III, has also been studied (Wei and Zhao, 2008). The cross combination of PowerFeed, Modicon and Varicol modes of operation is also a recurrent research matter, principally of optimization studies (Zhang et al., 2004a; Arau?jo et al., 2006a; Rodrigues et al., 2007b), providing more degrees of freedom and allowing better performance values. 2.4. Two Feed or MultiFeed SMB and Side Stream SMB Recently, the introduction of multi feed streams in the SMB area, by analogy with distillation columns, led to the formulation of the Two Feed SMB, or MultiFeed, operating mode presented by Kim (2005) and later studied by Sà ¡ Gomes and Rodrigues (Sà ¡ Gomes et al., 2007b; Sà ¡ Gomes and Rodrigues, 2007). Also multi extract/raffinate are referred in the literature (Mun, 2006), known as side stream SMB (Beste and Arlt, 2002). These techniques, combined with the distillation know-how for the optimum location of multiple feeds, can allow the development of more efficient SMB processes. 2.5. Semi Continuous, Two and Three zones SMB There are several semi continuous SMB apparatus that operate with two-zone, two or one-column chromatograph, with/or recycle, analogous to a four-zone SMB(Abunasser et al., 2003; Abunasser and Wankat, 2004; Arau?jo et al., 2005a; Arau?jo et al., 2005b; Jin and Wankat, 2005b; Mota and Arau?jo, 2005; Arau?jo et al., 2006b; Arau?jo et al., 2007; Rodrigues et al., 2008b), that allow a reasonable separation, some allowing centre cut for ternary or quaternary separations (Hur and Wankat, 2005b, 2005a, , 2006a, 2006b; Hur et al., 2007), under reduced equipment usage. The discontinuous injection in a system with 2 or more columns, based on the concept of simulated adsorbent movement, as been applied by Novasep under the denomination of Cyclojet ®, Hipersep ®, Supersepâ„ ¢ (Supersep MAXâ„ ¢ with Super Critical CO2) and Hipersep ®, (Grill, 1998; Valery and Ludemann-Hombourger, 2007). 2.6. Gradient SMB As a further possibility for increasing the productivity, the introduction of gradients in the different separation sections of the SMB process is also described in literature. The gradient mode was suggested firstly for the SMB-SFC (SMB-supercritical fluid chromatography) process, where the elution strength can be influenced by a pressure gradient (Clavier and Nicoud, 1995; Clavier et al., 1996). Nowadays, there are more gradient-variants that allows the variation solvent elution strength by changing the temperature, the pH-value, the content of salt or the modifier concentration (Jensen et al., 2000; Antos and Seidel-Morgenstern, 2001; Migliorini et al., 2001; Abel et al., 2002; Antos and Seidel-Morgenstern, 2002; Abel et al., 2004; Ziomek and Antos, 2005; Mun and Wang, 2008a), or as in Rodriguess group with the purification of proteins by Ion Exchange-SMB (IE-SMB) (Li et al., 2007; Li et al., 2008). Also worth of note is the MCSGP (Multicolumn Counter-current Solvent Gradient Puri fication) process (Aumann and Morbidelli, 2006; Strohlein et al., 2006; Aumann and Morbidelli, 2007; Aumann et al., 2007; Aumann and Morbidelli, 2008; Mà ¼ller-Spà ¤th et al., 2008), commercialized by ChromaCon AG (Zà ¼rich, Switzerland), which combines two chromatographic separation techniques, the solvent gradient batch and continuous counter-current SMB for the separation of multicomponent mixtures of biomolecules. 2.7. Hybrid-SMB: SMB combined with other processes It is possible to improve the performance of SMB units by integrating it with other different separation techniques. The more simple application of this approach is to combine in series the two different processes and then recycle back the outlets between (or within) the different units (Lorenz et al., 2001; Amanullah et al., 2005; Kaspereit et al., 2005; Amanullah and Mazzotti, 2006; Gedicke et al., 2007). Among these, an interesting hybrid SMB was presented by M. Bailly et al., (2005; Abdelmoumen et al., 2006), the M3C process; or the similar process: Enriched Extract operation (EE-SMB) (Paredes et al., 2006), in which a portion of the extract product is concentrated and then re-injected into the SMB at the same, or near to, the collection point. The use of SMB-PSA apparatus is also referred in the literature for gas phase separations, (Rao et al., 2005; Sivakumar, 2007; Kostroski and Wankat, 2008). The use of two SMB units with concentration steps between, for the separation of bi nary mixtures, was also developed under the denomination of hybrid SMB-SMB process (Jin and Wankat, 2007a). 2.8. The SMBR multifunctional reactor The integration of reaction and separation steps in one single unit has the obvious economical advantage of reducing the cost of unit operations for downstream purification steps. Besides reactive distillation, reactive extraction or membrane reactors, the combination of (bio)chemical reaction with SMB chromatographic separator has been subject of considerable attention in the last 15 years. This integrated reaction-separation technology adopts the name Simulated Moving Bed Reactor (SMBR). Several applications have been published considering the SMBR: the enzymatic reaction for higher-fructose syrup production (Hashimoto et al., 1983; Azevedo and Rodrigues, 2001; Borges da Silva et al., 2006; Sà ¡ Gomes et al., 2007a); meter a dos FOS the esterification from acetic acid and -phenethyl alcohol and subsequent separation of the product -phenetyl acetate (Kawase et al., 1996), or methyl acetate ester (Lode et al., 2001; Yu et al., 2003a); the synthesis and separation of the methanol fro m syngas (Kruglov, 1994); the esterification of acetic acid with ethanol (Mazzotti et al., 1996b); the lactosucrose production (Kawase et al., 2001); the MTBE synthesis (Zhang et al., 2001); the diethylacetal (or dimethylacetal) synthesis (Silva, 2003; Rodrigues and Silva, 2005; Silva and Rodrigues, 2005a; Pereira et al., 2008); the ethyl lactate synthesis from lactic acid and ethanol (Pereira et al., 2009a; Pereira et al., 2009b); the biodiesel synthesis (Geier and Soper, 2007) falta uma; or the isomerization and separation of p-xylene (Minceva et al., 2008) faltam os franceses, are examples that prove the promising potential of this technique. Depending on the reactive system some interesting arrangements of the general SMBR setup can be found in the literature, a more detailed review of several SMBR applications can be found elsewhere (Minceva et al., 2008). 2.9. Multicomponent separations The application of SMB technology to multicomponent separations has also been an important research topic in the last years. The common wisdom for such multicomponent process is the simple application of SMB cascades (Nicolaos et al., 2001a, 2001b; Wankatt, 2001; Kim et al., 2003; Kim and Wankat, 2004); nevertheless, there are some non-conventional operation modes that proved to have interesting performance, as the one introduced by the Japan Organo Co. (www.organo.co.jp), called JO process (or Pseudo-SMB); this process was discussed in detail (Mata and Rodrigues, 2001; Borges da Silva and Rodrigues, 2006, , 2008) and (Kurup et al., 2006a). The process is characterized by a 2-steps operation: (a) in the first step the feed is introduced while the intermediary product is recovered with the whole unit working as a fixed bed; (b) during the second step the feed stopped, the unit works as a standard SMB and the less and more retained products are collected, see Annex I for details. The u se of two different adsorbents (Hashimoto et al., 1993), two different solvents (Ballanec and Hotier, 1992), or a variation of the working flow rates during the switching period (Kearney and Hieb, 1992), were also proposed. 2.10. SMB Gas and Super Critical phases Most of the industrial applications of SMB technology operate in the liquid phase; nevertheless, SMBs can also be operated under supercritical conditions; where a supercritical fluid, typically CO2, is used as eluent offering a number of advantages namely reduction of eluent consumption, favourable physicochemical properties and lower pressure drop and higher column efficiency (Clavier and Nicoud, 1995; Clavier et al., 1996; Denet and Nicoud, 1999; Depta et al., 1999; Denet et al., 2001; Johannsen et al., 2002; Peper et al., 2002; Peper et al., 2007). Also in the gas phase the recent developments have been remarkable (Storti et al., 1992; Mazzotti et al., 1996a; Juza et al., 1998; Biressi et al., 2000; Cheng and Wilson, 2001; Biressi et al., 2002; Rao et al., 2005; Lamia et al., 2007; Mota et al., 2007b; Sivakumar, 2007; Kostroski and Wankat, 2008). Meter a do propano propylene 3. SMB design, modeling, simulation and optimization Over the last 50 years, design, modeling, and optimization of chromatographic separation processes have been frequent research subjects. As consequence, several modeling methods, strategies and approaches have been developed, the more relevant are reviewed in this section. 3.1. Design strategies The design of an SMB based separation involves taking decisions at many levels, from the configuration of the unit (number of columns per section, column and particle size) to operating conditions (feed concentration, switching time, internal flow rates). Although simulation can be exhaustively done until the right combination of parameters is found for the expected performance, it is useful to have a design method that will provide a preliminary estimation of the optimum operating point, followed by simulation and/or optimization, (Sà ¡ Gomes et al., 2009a). The equivalence between TMB and SMB can be quite useful in the SMB design procedure. Recalling the role of each SMB section (Figure 2c), one can state a set of constraints that will limit the feasible region and allow a complete separation (recover of the more retained species (A) in the extract stream, the less retained one (B) in the raffinate port, and regeneration of the solid in section I as fluid in section IV). Where represents the solid flow rate, the average solid concentration of species in section and the bulk fluid concentration of species in section . The flow rates constraints in Eq. 1b and 1.c will identify the separation region (section II and III), while Eq. (1 a) and Eq. (1 d) the regeneration one (section I and IV). Usually, the fluid and solid velocities in each section are combined into one only operating parameter, such as the from Morbidellis group or the , as used by Ruthven (1989). The identification of constrains, Eq. (1 a) to Eq. (1 d), led to the appearance of several design methodologies, which are usually approximated and/or graphical, providing a better insight to the possible operating regions. From the plates theory and McCabe-Thiele diagrams (Ruthven and Ching, 1989); passing by the analytical solutions for a linear adsorption isotherms system in presence of mass transfer resistances (Silva et al., 2004); to the determination of waves velocities as in the Standing Wave Design (SWD) methodology (Ma and Wang, 1997; Mallmann et al., 1998; Xie et al., 2000; Xie et al., 2002; Lee et al., 2005). A particular emphasis should be given to the strategy developed for binary and multicomponent separations modeled by linear and non-linear isotherms as in (Storti et al., 1989b; Storti et al., 1 993; Mazzotti et al., 1994; Storti et al., 1995; Mazzotti et al., 1996c; Mazzotti et al., 1997b; Chiang, 1998; Migliorini et al., 2000; Mazzotti, 2006b), the so-called â€Å"Triangle Theory†, where the term is treated by assuming that the adsorption equilibrium is established everywhere at every time (Equilibrium Theory, (Helfferich, 1967; Klein et al., 1967; Tondeur and Klein, 1967; Helfferich and Klein, 1970), resulting in a feasible separation region formed by the above constraints Eq. (1 b) and Eq. (1 c), which in the case of linear isotherms takes the shape of a right triangle in the plane, Figure 4, (or a triangle shaped form with rounded lines in non-linear isotherms case), and a rectangular shape in the plane. Recently, this methodology was also extended for the design of SMB units under reduced purity requirements, in which the separation triangle boundaries are â€Å"stretched† to account for different extract and/or raffinate purities (Kaspereit et al., 2007; Rajendran, 2008). Figure 4 â€Å"Triangle Theory†, separation and regeneration regions for linear isotherms, where represents the Henry constant for linear adsorptions isotherms (A: the more retained and B: the less retained species), is the intraparticle porosity; case of (S,R)Tetralol enantiomers, see Section 4.3.2. Nevertheless, the inclusion of mass transfer resistances can deeply affect the result of the design. By taking into account all mass transfer resistances, and running successive simulations, it is possible obtain more detailed separation/regeneration regions, as well as the separation study carried out for three different sections (II, III and I) or (II, III and IV) allowing the analysis of solvent consumption or solid recycling, as proposed in the â€Å"Separation Volume† methodology, (Azevedo and Rodrigues, 1999; Rodrigues and Pais, 2004a), or the influence of the solid flow rate in the separation region (Zabka et al., 2008a). 3.2. Modeling and simulation Generally, one can model a chromatographic separation process, and consequently an SMB unit, by means of two major approaches: by a cascade of mixing cells; or a continuous flow model (plug flow or axial dispersed plug flow, making use of partial differential equations derived from mass, energy and momentum balances to a differential volume element ), (Rodrigues and Beira, 1979; Ruthven and Ching, 1989; Tondeur, 1995; Pais et al., 1998). Each of these approaches can include mass transfer resistances, thermal, and/or pressure drop effects. Nevertheless, most of the recent literature concerning SMB processes just makes use of the continuous approach, detailing the particle diffusion and/or film mass transfer (the Detailed Particle Model), or using approximations to the intraparticle mass transfer rate in a similar way as the Linear Driving Force (LDF) approach presented by Glueckauf (1955a), (Guiochon, 2002). One can argue that an SMB unit is no more than the practical implementation of the continuous counter current TMB process, Figure 2. Consequently, the equivalence between the TMB and a hypothetical SMB with an infinite number of columns can be used in the modeling and design of SMB units. However TMB model approach will just give reasonable results if a considerable number of columns per section is present. The SMB model approach represents an SMB unit as a sequence of columns described by the usual system equations for an adsorptive fixed bed (each column ), thus represented by a PDE system. Nevertheless, the nodes equations can be stated to each section, making use of the equivalence between the interstitial velocity in the TMB and SMB, and thus: The issue here is that, due to the switch of inlet and outlet lines, the boundary conditions to a certain column are not constant during a whole cycle but change after a period equal to the switching time. Since the model equations are set to each column , one will obtain the concentration of species in the begin of each section , , from the following node mass balances: Considering now . This set of equations continues to progress in a similar way (shifting one column per ), until , repeating then from the first switch. As for the TMB model approach, both the Detailed Particle Model and LDF approach can be used with the SMB model approach; nevertheless, and for the sake of simplicity, just the last is detailed in this work. The LDF approximation can now be obtained from , and thus obtaining for the bulk fluid mass balance: and for the mass balance in the particle, with the respective initial: and boundary conditions: where the adsorption equilibrium isotherm is: As a consequence one obtains discontinuous solutions, reaching not a continuous Steady State but a Cyclic Steady State (CSS). By applying the SMB model approach, both the Detailed Particle as LDF strategies, to the case study mentioned before, one obtains the CSS concentration profiles over a complete switching time, Figure 6. 3.3. Performance parameters The performance of the SMB unit for a given separation is usually characterized by the following parameters: purity, recovery, productivity per the amount adsorbent volume and eluent/desorbent consumption per mass of treated product. The definitions of all these performance parameters, for the case of a binary mixture, are given bellow: Purity (%) of the more retained (A) species in extract and the less retained one (B) in the raffinate stream, over a complete cycle (from to ): Recovery (%) of more retained (A) species in extract and the less retained one (B) in raffinate stream, again over a complete cycle: the productivity per total volume of adsorbent : the eluent/desorbent consumption : These parameters hold for both SMB and TMB model approaches; nevertheless, one can simplify: in the SMB model strategy the same equations can be stated for a switching time period (from to ) if the unit is symmetrical, i.e., there are no differences between each switching time period (either due to the implementation of non-conventional modes of operation, or to the use of more detailed models accounting for dead volumes or switching time asymmetries); in the TMB model approach there is no need of the integral calculation, since the solutions from this model strategy are continuous and thus, the performance parameters constant over the time (at the steady state). 3.4. Optimization Usually one can classify the optimization of SMB units according to the type of objective functions: (i) optimization of performance parameters (productivity, adsorbent requirements or desorbent/eluent consumption for given purities and/or recovery requirements); (ii) optimization based on the separation cost. In case (i) each objective function, based on a different set of performance parameters, can lead to a different optimum solution; therefore multi-objective functions procedure should be considered; in the second case (ii) all those different performance parameters can be homogenized/normalized by the separation cost, where separation dependent costs (adsorbent, plant, desorbent/eluent recovery cost, desorbent/eluent recycling, feed losses) and separation independent costs (wages, labour, maintenance, among others) are taken into account and weighted by cost factors, which sometimes are difficult to characterize (Jupke et al., 2002; Chan et al., 2008). To solve these problems, the use of powerful optimization algorithms, such as: IPOPT (Interior Point OPTimizer, (Wa?chter and Biegler, 2006), employed for liquid as gas phase SMB separations (Kawajiri and Biegler, 2006b, 2006a; Mota et al., 2007a; Mota and Esteves, 2007; Rodrigues et al., 2007b; Kawajiri and Biegler, 2008a, 2008b); the commercial package gOPT from gPROMS with a Single (or Multiple) Shooting-Control Vector Parameterization, used in the two level optimization of an existing Parex ® unit (Minceva and Rodrigues, 2005), for ageing analysi

Childcare †Orientation Package Essay

Introduction Child Care in Ontario Child Care Licensing in Ontario Role of the Operator The Director under the Day Nurseries Act Role of Program Advisors The Application Process Planning and Design Guidelines for Child Care Centres Obtaining a Licence Health Canada – Product Safety Program Duration of Licensing Process Types of Licences Child Care Licensing Website Child Care Service System Managers 4 5 5 6 6 7 7 9 9 10 10 10 11 11. Summary of Licensing Requirements for Day Nurseries Organization and Management Staff Qualifications Health Assessments and Immunization Number and Group Size Criminal Reference Checks Building and Accommodation Equipment and Furnishings Policies and Procedures Playground Requirements Inspections Insurance Requirements Fire Safety and Emergency Information Health and Medical Supervision Nutrition 13 13 13 13 14 15 15 17 17 18 19 19 19 20 21 2. Behaviour Management Enrolment Records Program 22 23 23 Summary of Licensing Requirements for Private-Home Day Care Agencies Organization and Management Numbers of Children Criminal Reference Checks Building and Accommodation Equipment and Furnishings Policies and Procedures Inspections Insurance Requirements Health and Medical Supervision Nutrition Behaviour Management Enrolment Records Program Health Assessments and Immunization 25 25 25 27 27 27 28 28 29 29 30 31 32 32 33. Conclusion Glossary of Terms (Appendix 1) Things to Look Into Before Applying for a Licence to Operate a Day Nursery or a PrivateHome Day Care Agency (Appendix 2) Ministry of Children and Youth Services Regional Offices (Appendix 3) Child Care Service System Managers (Appendix 4) 34 35 36 37 38 3 INTRODUCTION One of the goals of the Ministry of Children and Youth Services is to help support social and economic development in Ontario by investing in and supporting an affordable, accessible and accountable child care system which helps benefit children, their parents and caregivers, and the broader community. The early learning and child care system in Ontario should: †¢ be accessible, affordable and inclusive †¢ care for children in a safe, nurturing environment †¢ foster early childhood development †¢ help support early learning and readiness for school †¢ be flexible and provide choice †¢ support children and their families †¢ provide appropriate standards of child care †¢ provide supports for parents in financial need, who are employed, in training, or involved in other employment activities †¢ support economic growth, and †¢ work in partnership with others involved in Ontario’s  early learning and child care system. This Orientation Package has been designed to provide individuals who are interested in obtaining a licence to operate either a day nursery (also known as child care centres) or a private-home day care agency in the Province of Ontario, with practical information and advice. The following information is included in this package: †¢ the process for obtaining a licence †¢ a summary of the licensing requirements to operate a day nursery or a private-home day care agency under the Day Nurseries Act †¢ a glossary of terms (Appendix 1) †¢ information to assist you in considering your decision to apply for a licence to operate either a day nursery or a private-home day care agency (Appendix 2) †¢ a list of the Regional Offices of the Ministry of Children and Youth Services (Appendix 3), and †¢ a list of the Child Care Service System Managers responsible for planning and managing the delivery of child care services throughout Ontario (Appendix 4). 4 CHILD CARE IN ONTARIO The child care system in Ontario consists of a range of services for families and their children, including licensed day nurseries and private-home day care which provide supports to children and their families. The Day Nurseries Act requires any premise that receives more than five children under the age of 10 years, not of common parentage (children who have different parents), for temporary care and guidance, to be licensed as a day nursery. A person may provide informal child care to five children or less under the age of 10 years who are not of common parentage (children who have different parents), in addition to his/her own children, without a licence. This number may not be exceeded, regardless of the number of adults present or on site. When a person provides in-home child care at more than one location or co-ordinates the provision of care at more than one site, a licence to operate a private-home day care agency is required. It is an offence to establish, operate or maintain a day nursery or private-home day care agency without a licence. On conviction, the fine is up to $2,000 for each day the offence continues, or imprisonment for a term of not more than one year, or both. Ministry staff have the responsibility to follow-up on all complaints about child care being provided without a licence. CHILD CARE LICENSING IN ONTARIO The Ministry of Children and Youth Services is responsible for the Day Nurseries Act and issues licences to operators of child care programs. There are two types of licensed child care programs: day nurseries and private-home day care agencies. In the Day Nurseries Act and in this package, child care centres are referred to as day nurseries. Day nurseries may include nursery schools, full day care, extended day care, and before and after school programs. 5. Private-home day care agencies arrange or offer home day care at more than one home. Care is provided to five children or less, under 10 years of age in a private residence other than the home of the parent/guardian of the child. Homes are monitored by the agency. Role of the Operator Operators have responsibility for the operation and management of each day nursery or private-home day care agency, including the program, financial and personnel administration of the program. Operators of licensed day nurseries and private-home day care agencies are required to achieve and maintain compliance with the standards set out in Ontario Regulation 262 under the Day Nurseries Act at all times. The Day Nurseries Act and Ontario Regulation 262 are available through: Publication Services 777 Bay Street, Market Level, Toronto, Ontario M5G 2C8 416-585-7485 or 1-800-668-9938 The Day Nurseries Act is available on the ministry’s website at: http://www. elaws. gov. on. ca/html/statutes/english/elaws_statutes_90d02_e. htm. Ontario Regulation 262 under the Day Nurseries Act is available online at: http://www. elaws. gov. on. ca/html/regs/english/elaws_regs_900262_e. htm#37. (1). The Director under the Day Nurseries Act Child care licences are issued by a â€Å"Director† who is an employee of the Ministry of Children and Youth Services, appointed by the Minister for the purpose of the Day Nurseries Act. The Director reviews all documents required for licensing, approves and signs the licence. The Director has the authority to refuse to issue a new licence if: †¢ the applicant or any of the officers, directors or employees of the applicant are not competent to operate a day nursery or privatehome day care agency in a responsible manner in accordance with the Day Nurseries Act 6 †¢ the past conduct of the applicant affords reasonable grounds for the belief that a day nursery or private-home day care agency will not be operated in accordance with the Day Nurseries Act, or the building in which the applicant proposes to operate the day nursery or provide private-home day care does not comply with the requirements of the Day Nurseries Act. †¢ In addition, if there are grounds, the Director may refuse to renew or revoke an existing licence. The Director may also issue a direction and temporarily suspend a licence if there is an immediate threat to the health, safety or well-being of the children. An applicant or licensee is entitled to a hearing before the Licence Appeal Tribunal. Role of Program Advisors Program Advisors, Ministry of Children and Youth Services staff designated under Section 16 of the Day Nurseries Act, are responsible for inspecting day nurseries and private-home day care agencies to enforce licensing requirements. In some regional offices, this position is referred to as Licensing Specialist. Program Advisors are responsible for assessing whether the operator has met the licensing requirements before an initial licence is issued. Unannounced inspections are conducted by Program Advisors for licence renewals on an annual basis or more frequently for a shorter term licences. In addition, Program Advisors conduct unannounced inspections in response to complaints related to licensed child care programs and to monitor operators who have difficulty maintaining compliance with licensing standards. The Ministry of Children and Youth Services also responds to complaints from the public pertaining to persons who are alleged to be operating without a licence (i. e. caring for more than five children under 10 years of age, not of common parentage, without a licence). The Application Process An individual or corporation can apply for a licence to operate a day nursery or a private-home day care agency. (Licences cannot be issued to partnerships. ) 7 Types of operators include: †¢ an individual †¢ corporations (non-profit and for-profit) †¢ municipalities †¢ community colleges †¢ churches, or †¢ Bands and Councils of the Band. The prospective operator contacts the local Regional Office (see Appendix 3) to request an application package and confirm the information required before proceeding with the next steps in the licensing process. Prior to requesting an initial site inspection for a day nursery (a visit to determine if the space is appropriate), the operator submits the completed application form to the Regional Office, as well as: †¢ †¢ †¢ written verification from the zoning authority confirming the location is approved for use as a child care centre detailed floor plans, and detailed site plans of the proposed location. These plans must include room measurements, window measurements (actual glass area), location of fixed cabinets (counters and storage areas) and fenced outdoor playground space dimensions (if required). Please note that effective July 1, 2005, as part of regulatory changes to the Ontario Building Code, all building or renovation plans for a day nursery must be reviewed and approved by the Ministry of Children and Youth Services prior to a municipality issuing a building permit. It is the operator’s responsibility to determine whether the location will meet zoning, building, fire and health requirements. Written verification must be submitted to the regional office confirming that these requirements have been met prior to a licence being issued. The fee for a new licence is $15; the renewal fee is $10. If a licence renewal is submitted to the ministry after the licence expiry date, the late fee is $25. 8 Planning and Design Guidelines for Child Care Centres This guide provides information about the planning, design and renovation of licensed child care centres. It is intended to be used by persons involved in the site selection, design, and operation of a child care centre in the province of Ontario. This guide is available through the local MCYS Regional office and on the ministry’s website at http://www. children. gov. on. ca/mcys/english/resources/publications/be ststart-planning. asp. (Alternately, from the ministry’s home page at http://www. children. Gov. on.ca, you can follow the links to Best Start, then Best Start resources, then Planning and Design Guidelines for Child Care Centres. ) Obtaining a Licence To obtain a licence, applicants must demonstrate compliance with the requirements set out in Regulation 262 of the Day Nurseries Act in a number of areas including: confirmation of compliance with municipal zoning, building, fire and health requirements; the suitability of the building; availability of equipment and furnishings; conformity with space requirements and playground standards; maintenance of staff/child ratios for various age groups; staff qualifications; nutrition; appropriate behaviour management; programming and insurance. Private-home day care agencies must demonstrate compliance with the requirements set out in Regulation 262 of the Day Nurseries Act in a number of areas including: staffing and training; policies and procedures; records of inspections of providers’ homes; availability of equipment and furnishings; appropriate behaviour management and insurance. The Program Advisor makes a recommendation to the Director under the Day Nurseries Act about the issuance of a licence based on their assessment of compliance with the requirements of the Day Nurseries Act and ministry policy. The Director decides whether to issue a licence and the type and term of licence to be issued. The Director may add terms and conditions to the licence. The operator is required to comply with the terms and conditions of the licence as well as the requirements of the Day Nurseries Act and ministry policy. 9 Operators must apply for a licence renewal prior to the expiry date of the current licence. Licences may be issued for a period of up to one year if all licensing requirements are met. Health Canada – Product Safety Program Health Canada helps protect the Canadian public by researching, assessing and collaborating in the management of the health risks and safety hazards associated with the many consumer products, including children’s equipment, toys and furnishings, that Canadians use everyday. Through their Product Safety Program, Health Canada communicates information about juvenile product hazards and recalls to protect children from avoidable risks. Advisories and warnings, juvenile product recall notices, food recalls and allergy alerts are posted on the Health Canada website. The Consumer Product Recalls webpage can be accessed at http://209. 217. 71. 106/PR/list-liste-e. jsp. Health Canada offers an electronic newsletter so that the public can receive updates when consumer advisories and warnings, juvenile product recalls, and consultation documents regarding consumer product safety are posted on the Health Canada Web site. As a prospective operator, you are encouraged to register on line for this service at: http://www. hc-sc. gc. ca/cps-spc/advisories-avis/_subscribeabonnement/index_e. html. Duration of Initial Licensing Process It may take up to 6 to 12 months to open a new day nursery or private-home day care agency depending on a number of factors, including the extent of the renovations, the incorporation of a corporation, the purchasing of equipment, the hiring of a supervisor or home visitors, the recruitment of staff, the development of policies and obtaining all required approvals. Types of Licences †¢ Regular licence – may be issued for up to 1 year if the operator was in compliance with licensing requirements when last inspected. 10 †¢ Regular short-term licence – issued at the discretion of the Director – routinely issued to new licensees (generally for a period of up to six months) or when more frequent licensing visits are appropriate to support ongoing compliance. Regular licence with terms and conditions – terms and conditions are requirements prescribed by a Director and are additional to the requirements of the Day Nurseries Act. They may reflect circumstances specific to the operation, such as half day or 10 month service. They may also be in place to minimize the recurrence of a non-compliance, such as incomplete staff medical records. Provisional licence – When Day Nurseries Act requirements have not been met and the operator requires time to meet requirements, a provisional licence (generally for a period up to three months) may be issued. This licence gives the operator a period of time to meet licensing requirements. Copies of a letter indicating that a provisional licence has been issued and a summary of the non-compliances are sent to the centre for distribution to parents. The summary of non-compliances will also appear on the Child Care Licensing Website. †¢ †¢ Child Care Licensing Website MCYS has launched the Child Care Licensing Website to provide parents with information about licensed child care in Ontario. The site is accessible at http://www. ontario. ca/ONT/portal51/licensedchildcare. A search tool allows parents to search for child care by city, postal code, type of program, age group, program name, operator name and language of service delivery. The site also provides the status of the licence and the terms and conditions of the licence for any licensed program parents might be considering or about which they might be concerned. Once a licence is issued, the information appearing on the licence of the program will be available on the website. Child Care Service System Managers The child care system is managed at the municipal level by fortyseven Consolidated Municipal Service Managers (CMSMs) /District 11 Social Services Administration Boards (DSSABs). Each service system manager has responsibility for planning and managing a broad range of child care services, including fee subsidy, wage subsidy, family resource centres and special needs resourcing. Prospective operators should contact their local child care service system manager (see Appendix 4) to discuss the need for child care in the area being considered and for information about funding and fee subsidy. 12 DAY NURSERIES ACT SUMMARY OF LICENSING REQUIREMENTS FOR DAY NURSERIES Day nurseries are centre-based programs and can include nursery schools, full day child care, extended day and before and after school programs. Organization and Management The operator of the day nursery is responsible for maintaining compliance with the Day Nurseries Act and ministry policy. This includes responsibility for the operation and management of the program and financial and personnel administration. A qualified supervisor who directs the program and oversees the staff is required for each child care centre. This person must have a diploma in Early Childhood Education, or other academic qualifications which are considered equivalent, and have at least two years experience in Early Childhood Education. The supervisor must also be approved by the Director under the Day Nurseries Act. Staff Qualifications †¢ The supervisor must have a diploma in Early Childhood Education or equivalent qualifications, with two years experience and must be approved by the Director under the Day Nurseries Act. †¢ One staff with a diploma in Early Childhood Education or equivalent qualifications must be hired for each group of children. Health Assessments and Immunization †¢ Staff immunization/health assessment, as required by the local medical officer of health, must be completed before commencing employment. 13. Number and Group Size Number of Staff required for a Day Nursery Other than a Day Nursery for Children with Disabilities Ratio of Employees to Children 3 to 10 1 to 5 Maximum Number of Children in a Group 10 15 Group Age of Children in Group Infant Toddler Under 18 months of age 18 months of age and over up to and including 30 months of age more than 30 months of age up to and including 5 years of age 44 months of age or over and up to and including 67 months of age as of August 31 of the year 56 months of age or over and up to and including 67 months of age as of August 31 of the year 68 months of age or over as of August 31 of the year and up to and including 12 years of age Preschool 1 to 8 16 Junior Kindergarten 1 to 10 20 Senior Kindergarten 1 to 12 24 School age. 1 to 15 30 †¢ All children must be supervised by an adult at all times. †¢ Ratios are not permitted to be reduced at any time for children under 18 months of age. †¢ Ratios are not to be reduced on the playground. 14 †¢ Where there are six or more children over 18 months of age or four or more children under 18 months of age in attendance, there must be at least two adults on the premises. †¢ Staff/child ratios may be reduced to 2/3 of the required ratios during the periods of arrival and departure of children and during the rest period, with the following exceptions: †¢ †¢ when children are under 18 months of age on the playground with any age group. †¢ In a full day program operating six or more hours in a day, for the purposes of staffing, the period of arrival is not to exceed two hours after the opening and the period of departure is not to exceed two hours before the closing of the day nursery. †¢ In half day nursery school programs and school age programs, the period of arrival is not to exceed 30 minutes after the opening and the period of departure is not to exceed 30 minutes before the closing of the day nursery. Criminal Reference Checks Individuals and directors of a corporation applying for new licences will be required to submit a criminal reference check to their local Ministry of Children and Youth Services Regional Office as part of the licence application. In preparation for the initial licensing visit, the operator of the day nursery is required to develop a criminal reference check policy for all full and part time staff working with the children, as well as for volunteers. Additional information about the Ministry of Children and Youth Services criminal reference check policy is available from Regional Offices. Building and Accommodation Each day nursery must: †¢ comply with the requirements of applicable local authorities i. e. zoning and building department, medical officer of health and fire department †¢ comply with the requirements of the Safe Drinking Water Act, 2002, O. Reg. 170/03, where applicable. These provisions only apply to designated facilities with drinking water systems where 15 the water is not provided through service connections with a municipal residential water system. The requirements of this regulation are available from the Ministry of the Environment’s website at http://www. ene. gov. on. ca/envision/gp/5361e. pdf †¢ comply with the requirements for lead flushing and water sample testing (where applicable) under the Safe Drinking Water Act, 2002, O. Reg. 243/07. The requirements of this regulation are available from the Ministry of the Environment’s website at http://www. ontario. ca/ONT/portal51/drinkingwater/General? docId= 177450&lang=en †¢ comply with the requirements of the Smoke-Free Ontario Act. †¢ have designated spaces for washing, toileting and separate storage areas for toys, play materials and equipment †¢ have designated space for eating and resting, preparation of food if prepared on premises or a food service area if food is catered (prepared off premises by a food catering company and delivered to the centre), a fenced playground (see page 15), storage for beds, a staff rest area and an office area if the program operates for six or more hours †¢ have play space of at least 2. 8 square metres (30 square feet) of unobstructed floor space for each child, based on the licensed capacity †¢ have separate play activity rooms for each age grouping. A separate sleep area for infants is also required †¢ have rooms on or below the second floor where the rooms are for children under six years of age †¢ have a clear window glass area equivalent to 10% of the available floor area for each play activity room for a program that operates for six or more hours in a day. 16 Equipment and Furnishings Each day nursery must have: †¢ an adequate number of toys, equipment and furnishings for the licensed capacity. The toys, equipment and furnishings must be age appropriate and include sufficient numbers for rotation as well as for gross-motor activity in the playground area †¢ infant and toddler diapering areas that are adjacent to a sink †¢ cribs or cradles that meet the requirements of the Hazardous Products Act, for infants, and cots for older children †¢ equipment and furnishings which are maintained in a safe and clean condition and kept in a good state of repair †¢ a telephone or an alternative means of obtaining emergency assistance that is approved by the Director †¢ Where children are transported in a day nursery vehicle, child seating and restraint systems are used that meet the requirements of the Highway Traffic Act, O. Reg. 613. Policies and Procedures Every operator must develop the following policies and procedures: †¢ Fire evacuation procedures †¢ Sanitary practices †¢ Serious occurrence policy, including child abuse reporting procedures †¢ Criminal reference check policy †¢ Medication policy †¢ Behaviour management policy, including monitoring procedures and contravention policies 17. †¢ Program statement/parent handbook †¢ Playground safety policy †¢ Anaphylactic policy, including an individual plan for each child with a severe allergy and the emergency procedures to be followed. Playground Requirements †¢ Programs operating six or more hours in a day require outdoor play space equivalent to 5. 6 square metres (60 square feet) per child, based on licensed capacity. †¢ The playground must be: †¢ sub-divided if licensed capacity is over 64 children †¢ at ground level and adjacent to the premise †¢ designed so that staff can maintain constant supervision. †¢ If used by children under 44 months of age as of August 31 of the year, the playground must be fenced to a minimum height of 1. 2m (4 feet) and furnished with one or more gates that can be securely closed at all times. †¢ If used by children 44 months of age and up to an including 67 month of age as of August 31 of the year (children eligible to attend junior and senior kindergarten), the playground is fenced to a minimum height of 1. 2 metres and the fence is furnished with one or more gates that are securely closed at all times, unless otherwise approved by the Director. †¢ Fixed playground structures (i. e. climbing equipment, slides) are not required by the Day Nurseries Act; however, if the operator intends to install fixed play structures, the structures and safety surfacing must meet current Canadian Standards Association standards. †¢ The current Canadian Standards Association’s (CSA) Standard applies to new and newly renovated playground equipment, and 18 safety surfacing. The CSA Standards also set out the requirements for routine maintenance and inspections. †¢ Playground plans indicating the type and location of fixed structures as well as the type and area of safety surfacing must be approved by the ministry before installation. †¢ Once play structures and surfacing are installed, compliance with the CSA standards must be verified in writing by an independent certified playground inspector before the structures can be used by the children. Inspections †¢ Copies of fire and health inspections are to be sent to the Ministry of Children and Youth Services program advisor and kept on file at the day nursery. Insurance Requirements †¢ The operator must have comprehensive general liability coverage and personal injury coverage for all staff and volunteers. †¢ All vehicles owned by the operator and used for transportation of staff and children must have motor vehicle insurance. Fire Safety and Emergency Information †¢ A fire safety plan must be approved by the local fire department. †¢ A written evacuation procedure, approved by the fire department, must be posted in each room. †¢ Staff are to be instructed on their responsibilities in the event of fire. †¢ Monthly fire drills must be conducted and written records of drills maintained. †¢ Tests of the fire alarm system and fire protection equipment (as required under the Ontario Fire Code) must be conducted and written records of test results maintained. 19. †¢ There must be a designated place of emergency shelter. †¢ An up-to-date list of emergency telephone numbers including the fire department, hospital, ambulance service, poison control centre, police department and a taxi service must be posted where they can be easily accessed. †¢ Medical and emergency contact information for each child must be accessible. Health and Medical Supervision †¢ A daily written log that includes health and safety incidents is required. †¢ Any instructions or recommendations made by the fire department, public health department or other regulatory bodies must be implemented and recorded. †¢ Sanitary practices and procedures must be approved by Ministry. †¢ Children must be immunized according to the requirements of the local medical officer of health, unless a fully authorized exemption is on file. †¢ Before each child begins to play with others, a daily observation of the child’s health is required. †¢ An ill child must be separated from others and arrangements made for the child to be taken home or for immediate medical attention, if required. †¢ Serious occurrence procedures must be in place and the Ministry of Children and Youth Services notified of any occurrence. A serious occurrence includes such things as the death of a child, a serious injury, alleged abuse/mistreatment of a child, a missing child, a disaster on the premises (e. g. fire) or a serious complaint. 20. †¢ A written anaphylactic policy is in place that includes: †¢ A strategy to reduce the risk of exposure to anaphylactic causative agents †¢ A communication plan for the provision of information on lifethreatening allergies, including anaphylactic allergies †¢ An individual plan for each child with an anaphylactic allergy that includes emergency procedures in respect of the child †¢ Staff, students and volunteers have received training on procedures to be followed if a child has an anaphylactic reaction. †¢ A first aid kit and manual must be readily available. †¢ A written procedure approved by a qualified medical practitioner regarding the giving and recording of medication is required. The procedure should include the storage of medication (e.g. medication must be stored in a locked container). †¢ If a child has or may have a reportable disease or is or may be infected with a communicable disease, this is reported to the medical officer of health as soon as possible. †¢ Cats and dogs on the premises must be inoculated against rabies. Nutrition †¢ Infants are to be fed according to written parental instructions. †¢ Food and drink from home must be labelled with the child’s name. †¢ All food and drink must be stored to maintain maximum nutritive value. †¢ Meals and snacks must meet the requirements of the Day Nurseries Act. Canada’s Food Guide provides useful information about nutrition. 21 †¢ Meals are to be provided where a day nursery operates for 6 or more hours each day or where the daily program operates less than 6 hours each day and operates over the meal time. This generally refers to the provision of lunch as the mid-day meal. In day nurseries that offer care over extended hours, this may mean that breakfast and/or dinner are also provided. †¢ With the approval of a ministry Director, children 44 months of age or over as of August 31 of the year may bring bag lunches. Written policies and procedures with guidelines for bag lunches should be both posted and provided to parents. †¢ Menus must be posted with substitutions noted. †¢ Children’s food allergies must be posted in the kitchen and in all rooms where food is served. †¢ Special dietary arrangements for individual children are to be carried out according to written instructions of parents. Behaviour Management †¢ Corporal punishment is not allowed under any circumstances. †¢ The following are not permitted: †¢ deliberate harsh or degrading measures that would humiliate or undermine a child’s self respect †¢ deprivation of food, shelter, clothing or bedding †¢ confining a child in a locked room †¢ exits locked for the purpose of confinement. †¢ Written behaviour management policies and procedures which guide centre staff in managing children’s behaviour are to be reviewed annually by the operator. The operator is required to review the policies and procedures with employees and volunteers or students before they begin working, and annually thereafter. These policies must set out permitted and prohibited behaviour 22 management practices and measures to deal with any contraventions of the policy. †¢ There must be: †¢ a signed, written record of all reviews, and †¢ a written procedure for monitoring behaviour management practices of employees, students and volunteers, and a record kept of this monitoring. Enrolment Records †¢ Up to date enrolment records for all children in attendance must be on site at all times and be available to the Ministry of Children and Youth Services. These records include, in part, an application, immunization records, emerg.

Top Advice on Thesis Writer

Top Advice on Thesis Writer Thesis Writer Options Order top-notch essay at the moment and certified specialists will do their very best to supply you with higher quality at fair price. If you wish to acquire high high quality research and thesis papers punctually and for a fair price, you should probably try out using EssaySupply.com. You can rely on the ideal essay help online. Acquiring thesis on the internet is not hard, any student can research for information on the net and find a genuine thesis compiled. Be ready to develop a crucial eye in regards to your own paper. Your paper should contain comprehensive information associated with the significant field you're studying. Firstly you'll need to run through your whole paper looking for any obvious grammatical errors. Come to us when you want a personalized paper whether it's an academic or non academic paper and you'll discover a superior paper written through an excellent papers writer. It's very risky to just give your assignment to an internet paper writer from any corporation. Whether you're unable to formulate the thesis statement or can't compose the paper, the superior news is that now you can acquire reliable assistance online. If you're on the lookout for tips about how to compose a term paper and get a high grade, pay additional attention to the conclusion. If you would like to obtain a research paper, online writing service like ours is precisely what you require. Our writers always create unique content that is absolutely free from all grammatical error. Certified editors, proofreaders and writers are well conscious of how to compose an essay that will satisfy the greatest academic standards along with your professor's expectations. Adhere to the entire point of the grade of the writer you'll be able to use the text has never been so fast and. As soon as your edit is completed, make certain that your references are wholly loaded into your appendix in the acceptable format. No matter the research paper is an enormous deal of proofreading tools and you will discover interesting. The majority of the internet writing companies aren't genuine. Regardless of what genre you would like Business Studies, Microeconomics, Business Management and Financial Accounting, we're here to serve your requirements. At this point you get to bring all your research together. An expert with this much thesis writing experience below the belt could finalize your treatise up to the mark even in a short time. Obesity can increase someone's risk of cardiovascular disease, stroke, higher blood pressure, diabetes, breathing troubles, and sometimes even cancer. Your strongest point needs to be revealed in the last body paragraph. Co nclusion Here, the principal points of the study is going to be summarized. Earning an academic degree isn't simple, and it is dependent on what you require it for. You are going to be able to select the writer with the best qualifications in the specialty of science you require. Every student definitely knows that the dissertation is a considerable part of the advanced academic level, therefore it should take up lots of time and energy. Studying only will help improve your abilities. It's possible to easily buy unique college essays and don't neglect to tell friends and family about it. Writing college essays is not something to be dismissed, especially if you prefer to not just receive a very good grade, but in addition prove a point. So should you need to employ college essay writer online, we're just the people that you want to contact. While it's the case that there are a few excellent writers in college some find it extremely difficult to write. The Chronicles of Thesis Writer Be certain that the outline is logical, your argument flows, and that you're able to discover sufficient support for your argument. The thesis statements are presently in the aim of the question or central argument. A thesis will consume your whole life, particularly in the past two months before it's due. What's more, you should make your statement thesis clear and interesting, putting into couple of sentences each of the data you're going to describe. Life After Thesis Writ er What you will need is an essay written, and it is precisely that which we deliver. Jump to the HOW You have stated the WHAT portion of the dissertation now you have to state how you're likely to execute the research that is known as the Methodology. In such circumstance, professional dissertation help can arrive in handy. Just imagine you're starting your thesis. A great thesis advisor ought to be knowledgeable about your subject and ought to be familiarized with what your specific department expects in a senior honors essay. To begin with, you have to understand how to structure your dissertation. Whether you require urgent aid with thesis or dissertation, we can give you precisely what you're trying to find. The type of essay you're looking for will be provided to you within the deadline offered to you. To purchase essay online, you simply will need to fill in the application form and you'll get superior work on the desired topic. The first consideration to pick up here, is that it's an incredibly wide topic that's open to an array of approaches and that brings us to step one. If you're looking for a hardy tree with a striking aesthetic, look no more!

National Average of Gas Prices 2000-2001 - 989 Words

National Average of Gas Prices 2000-2001 In the beginning of the summer, when most people drive to vacation spots throughout the United States, gas prices reached record highs. In June 2000, the national average was $1.68 per gallon and in some larger cities; the prices soared to $2.00 and more per gallon (Facts.com, 2005). Americans were furious not only because consumers were paying more at the pumps, but because rising fuel costs have triggered inflation. Americans realized that if inflation began to rise, a recession could be triggered as had occurred in the 1970s and 1980s (Facts.com, 2005). Affects on Gas Costs on the Economy 2000-2001 Fuel prices began to rise because the supply of oil was not meeting the†¦show more content†¦Member nations of OPEC wanted high oil prices to support the fortunes of the ruling wealthy classes and to provide huge public benefits for a the member nations poverty stricken and unemployed population (Steltzer, 2000). Analysts Outlook for Oil Supplies in the Future Decades after 2000-2001 Some analysts claimed that the worlds oil supply was decreasing so slowly that no concern was warranted for future decades. These analysts used the oil crisis of the 1970s as an example. Many observers at that time predicted that because no new oil-fields had been discovered the prices of oil would rise to 100 dollars per barrel or more by the end of the decade, even though this increase never did occur (Truby, 2000). Other critics felt that the oil price increase in 2000 was a bad indicator of what the future held if changes were not made in the nations energy infrastructure (Truby, 2000). The fear was not that the nation would run out oil, but cheap oil. The terrorist attack on the Trade Center was thought to have an impact on the oil prices, but due to decreases in interest rates to keep the economy afloat, those increases never came to fruition. Conclusion Oil prices in the years 2000-2001 rose due to OPECs decision to cut the supply of oil that was being produced. Foreign relations with the United States did little to the price increase ofShow MoreRelatedEffects of 9/11 on American Economy Essay625 Words   |  3 PagesThe September 11 attacks were set of four terrorist attacks controlled by al-Qaeda, an Islamic terrorist group. On September 11, 2001, four aircrafts were hijacked by the terrorists; two of the planes hit Twin towers in New York, third hit the Pentagon and the fourth one crashed into a field near Shanksville, Pennsylvania (â€Å"9/11 Attacks†). The September 11 attacks had several long-term negative effects that include Social effects, Psychological effects, Physical health effects, Economic effects andRead MoreHybrid Vehicle1392 Words   |  6 PagesAbstract: As gas prices raise the average automobile consumer demands a better, more fuel efficient vehicle. This demand has forced manufacturers to begin producing hybrid vehicle; first four door hybrid sedan was unveiled by Toyota in 2000. The Toyota Prius’ success encouraged it competitors to roll out their hybrid cars as well setting a common standard for environmentally friendly and efficient vehicles. The relationship of consumer and manufacturer in the car industry on a macro level hasRead MoreGlobalization : An International Economy And Global Markets898 Words   |  4 Pagesdon t look after social needs (2000). Globalization allows businesses to grow due to the elimination of stringent trade restrictions and tariffs. Globalization also allows undeveloped nations the opportunity to flourish by creating jobs that were previously unavailable. As Lechner states in his Globalization Debates - Good vs. Bad, those in opposition believe that globalization is dangerous due to the à ¢â‚¬Å"...inequities of oppressive global capitalism† (2000-2001). So, what are the upsides and downsidesRead MoreHow Gasoline Prices Work3963 Words   |  16 PagesIntroduction to How Gas Prices Work Image Gallery: Hybrid Cars Photo by Justin Sullivan/Getty Images High gas prices can make you stop and think about your commute. See hybrid car pictures to see models that save you money.In May 2008, average gas prices in the United States approached, and in some places passed, $4.00 a gallon, shattering records. But this was nothing new to American consumers. May was a month of records that broke one after another, and that came on the heels of months ofRead MoreWhy the Suv Is Bad1715 Words   |  7 Pagesare no rules right now but the National Highway Traffic Safety Administration (NHTSA) will require better mileage by 2011. The H2 will have to increase its mpg to 22.3. Still that is very low considering most compact cars minimal is 27.5. Ron DeFore, a spokesman for the sport-utility vehicle Owners of America, a non-profit consumer group, questioned whether the rules were needed given high gas prices. He says he fears the standards will lead to higher vehicle prices, reduced performance and fewerRead More Energy Crisis Of The United States Essa y2153 Words   |  9 Pagesincluding using more solar and wind energy, nuclear power, and drilling in the Arctic National Wildlife Refuge (ANWR). The President told the American people that they would have to watch their energy use and conserve as much as possible. Gas prices reached $2 per gallon in the Midwest for the second straight summer, and California continued to be hit by unprecedented power woes that forced rolling blackouts. The price of crude oil rose sharply, from around $10 a barrel to a peak of $37. The currentRead MoreHomelessness1688 Words   |  7 PagesBy definition, a person who is homeless lives in public. The lack and destruction of federal housing programs and increasing rents forced those who are homeless to do in public what everyone prefers to do in private. According to the website, National Law Center on Homelessness and Poverty, the Low Income Housing Information Service estimates that â€Å"there are twice as many low-income families searching for housing as there are units available†, many of which are waiting on Section 8 housing, aRead More America Does NOT Need to Drill in the Arctic National Wildlife Refuge5388 Words   |  22 PagesAmerica Does NOT Need to Drill in the Arctic National Wildlife Refuge Thesis: If the United States is going to choose to conserve energy responsibly, then our governments energies should not be focused on developing oil in the ANWR, but rather on the topics of conservation through higher fuel efficiency standards in vehicles and by developing alternative energy sources. Conservation, fuel efficiency and alternative energy sources are the solutions that will lead usRead MoreWhy It Is Important to Reduce Emissions Caused by Carbon Dioxide and Other Greenhouse Gases and Avoid the Costs Originated by Them in the Near Future2919 Words   |  12 PagesThe issue of Global climate change is one of the utmost economic, social, and environmental challenges of this century. Analysis shows that greenhouse gas emissions are responsible for changes in the pattern of climate around the Globe. â€Å"Global pollution creates a â€Å"public bad† born by all – a negative externality with a wide impact† (M.Harris, 2002). Australia is considered to be the driest populated continent in the world and faces stern drought and water shortages. Reducing carbon emissions isRead MoreReport on Oil and Gas Industry in Pakistan81517 Words   |  327 PagesReport No. 26072-PK Pakistan: Oil and Gas Sector Review July 10, 2003 Oil and Gas Policy Division Oil, Gas, Mining and Chemicals Department Private Sector Development and Infrastructure Document of the World Bank Currency Equivalents Currency Unit = Rupees (Rs) Rs. 1.00 = Paisa 100 US$1.00 = Rs. 58.35 * Rs. 1.0 = US$0.017138 Rs. 1,000,000 = US$17,138 *As of December 31, 2002 Measures And Equivalents 1 Kilometer (km) 1 Cubic Meter (m3) 1 Cubic Meter (m3) 1 Thousand Cubic Feet