physical chemical separation of polymers from carpet
Tài liệu Báo cáo khoa học: Endotoxic activity and chemical structure of lipopolysaccharides from Chlamydia trachomatis serotypes E and L2 and Chlamydophila psittaci 6BC pdf
Ngày tải lên :
20/02/2014, 23:20
... strain 6BC, the chemical structures of which are already known [12,13] The negative ion MALDI-TOF mass spectrum of the native LPS (Fig 1) exhibited a complex pattern of several groups of ion peaks ... CSD ESI-FT-ICR mass spectrum of de-O-acylated LPS from Fig Negative ion MALDI-TOF mass spectra of lipid A isolated from C trachomatis serotype E (A) and L2 (B) and from Chl psittaci 6BC (C) C ... and of laser-induced fragment ions [18] representing the lipid A moiety of LPS (centered around m/z 1850, 1641, and 1347) The mass difference of D m/z 660 between the respective groups of ions of...
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The Estimation of Mechanical Properties of Polymers from Molecular Structure ppt
Ngày tải lên :
01/04/2014, 00:20
... obtained from Fedors (see Ref 22) with the exception of the value of SO2 where a value of 26,000 was used Internal data of The Dow Chemical Co The data were obtained under conditions of ASTM D-638 ... points out the utility of this approach in estimating the strength of ordered polymers The effects of molecular weight on the strength of glassy polymers is to increase from near zero at very ... modlui, Uowas calculated from eq (30) The average of the ratio of Uo/Ucoh was 2.06 for all 18 polymers in Table VII The final column of the table shows the calculated values of the tensile modulus...
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PHYSICAL - CHEMICAL TREATMENT OF WATER AND WASTEWATER - CHAPTER 0 pdf
Ngày tải lên :
11/08/2014, 10:22
... member of the American Society of Civil Engineers, a member of the American Institute of Chemical Engineers, a member of the Water Environment Federation, a member of the American Association of ... Test 12.5 Chemical Reactions of Alum 12.5.1 Determination of the Optimum pH 12.6 Chemical Reactions of the Ferrous Ion 12.6.1 Determination of the Optimum pH 12.7 Chemical Reactions of the Ferric ... meaning of the two words is blended such that they now often mean the same thing Wastewater equals sewage PHYSICAL CHEMICAL TREATMENT OF WATER AND WASTEWATER What is physical chemical treatment of...
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PHYSICAL - CHEMICAL TREATMENT OF WATER AND WASTEWATER - CHAPTER 2 pps
Ngày tải lên :
11/08/2014, 10:22
... PM 130 Physical Chemical Treatment of Water and Wastewater 2.1.14 BIOCHEMICAL OXYGEN DEMAND Biochemical oxygen demand (BOD) is the amount of oxygen consumed by the organism in the process of stabilizing ... concentrations of 250 mg/L are objectionable, however, would depend upon the degree of acclimation of the user to the water In Antipolo, a barrio of Cebu in the Philippines, the normal source of water of ... Constituents of Water and Wastewater 131 freedom from toxic materials, favorable pH and osmotic pressure conditions, optimal amount of nutrients, and the presence of significant amount of population of...
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PHYSICAL - CHEMICAL TREATMENT OF WATER AND WASTEWATER - CHAPTER 6 pps
Ngày tải lên :
11/08/2014, 10:22
... Projected area of paddle blade Sum of projected areas of paddle blades Length of paddle blade Coefficient of drag Width of paddle blade The diameter of the impeller Diameter of vessel Distance of impeller ... direction of the driven fluid is along the axis of rotation Reference dimension—The smallest number of groups of the groups formed from all the possible groupings of the basic dimensions of the physical ... length of the paddle blades of the longest compartment to that of the length of the paddle blades of the middle compartment is 2.6:2, and the ratio of the length of the paddle blades of the middle...
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PHYSICAL - CHEMICAL TREATMENT OF WATER AND WASTEWATER - CHAPTER 7 pdf
Ngày tải lên :
11/08/2014, 10:22
... specified from the temperature of filtration The value of c may be determined by performing an experiment of the particular type of sludge To determine α o , take the logarithms of both sides of Equation ... coming from a softening plant is different than the influent coming from a coagulated surface water Also, the influent coming from a secondary-treated effluent is different than that of any of the ... of the cylindrical element of fluid; Fg is the weight of the fluid in the element; Fsh is the shear force acting on the fluid along the surface areas of the grains; dV is the volume of element of...
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PHYSICAL - CHEMICAL TREATMENT OF WATER AND WASTEWATER - CHAPTER 8 ppsx
Ngày tải lên :
11/08/2014, 10:22
... carbon using chemicals Chemical adsorption or chemisorption—A type of adsorption aided by chemical bonding on the surfaces Coulomb efficiency—The fraction of the input number of equivalents of an ionized ... performance of a given membrane may be characterized according to its product flux and purity of product Flux, which is a rate of flow per unit area of membrane, is a function of membrane thickness, chemical ... concentrating solute at the surface of a solid by virtue of this attraction Adsorption may be physical or chemical Physical adsorption is also called van der Waals adsorption, and chemical adsorption is also...
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PHYSICAL - CHEMICAL TREATMENT OF WATER AND WASTEWATER - CHAPTER 11 pdf
Ngày tải lên :
11/08/2014, 10:22
... source of the confusion Thus, to understand the underpinnings of this method of expression, one must look at the reference chemical reaction As shown previously, the equivalence of all forms of alkalinity ... amount of calcium carbonate that precipitates is simply the equivalent of the calcium ion that precipitates, Cappt Because the number of moles of Cappt is equal to the number of moles of the ... 14, 2002 2:27 PM 534 Physical Chemical Treatment of Water and Wastewater a distribution main at a rate of 0.22 m /s Determine the length of time it takes to clog a section of the distribution...
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PHYSICAL - CHEMICAL TREATMENT OF WATER AND WASTEWATER - CHAPTER 12 ppsx
Ngày tải lên :
11/08/2014, 10:22
... hydroxide plus the solids produced from the suspended solids resulting from the use of an optimum dose of [Alopt]geq of alum Kilogram of copperas used Kilograms of calcium bicarbonate used with ... carbonate plus the solids from the suspended solids) resulting from the use of an optimum dose of copperas of [FeIIopt]geq Kilograms of ferric hydroxide plus the solids produced from the raw water suspended ... equivalents of lime used with one of the ferric salts as coagulant Kilograms of FeCl3 used Kilogram equivalents of FeCl3 Kilogram equivalents of any one of the ferric salts used Kilograms of Fe2(SO4)3...
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PHYSICAL - CHEMICAL TREATMENT OF WATER AND WASTEWATER - CHAPTER 13 pdf
Ngày tải lên :
11/08/2014, 10:22
... Kilograms of chlorine used for the ferrous reaction Kilograms of chlorine used for the manganous reaction Kilograms of Fe(OH)2 precipitated from removal of ferrous Kilograms of Fe(OH)3 precipitated from ... range from 11.5 to 12.5 Low pH range—The optimum pH range from 5.5 to 12.5 Orbitals—A volume of space in an atom where electrons of specific energy occupy Oxidation—The removal of electrons from ... number of moles of electrons involved or the number of positive (or negative) moles of charges or oxidation states in a reactant involved in a given chemical reaction Sludge—A mixture of solids...
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PHYSICAL - CHEMICAL TREATMENT OF WATER AND WASTEWATER - CHAPTER 14 pps
Ngày tải lên :
11/08/2014, 10:22
... liter of suspended solids in raw water Cubic meters of water treated Water of hydration of alum Activity coefficient of the calcium ion Activity coefficient of the hydrogen ion Activity coefficient of ... solids produced from chemical reaction If V is the cubic meters of water treated and spss are the solids removed at a fractional efficiency of fss, the kilograms of solids produced from the suspended ... phosphate phosphorus of the raw water The p orbital of the valence shell Fractional purity of alum Fractional purity of lime Fractional purity of ferric chloride Fractional purity of ferric sulfate...
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PHYSICAL - CHEMICAL TREATMENT OF WATER AND WASTEWATER - CHAPTER 15 docx
Ngày tải lên :
11/08/2014, 10:22
... unit mass of BOD5 or mass of organisms or cells per unit mass of COD For the case of Ydn, the units used in practice are in terms of mass of the organisms or cells per unit of mass of the nitrate ... rate of increase of the concentration of the organisms The first term on the right-hand side of Equation (15.71) is the rate of increase of microorganism that corresponds to the rate of decrease of ... mg/L of TKN, 25 mg/L of ammonia nitrogen, and 200 mg/L of BOD5 The effluent from the tank contains 2.0 mg/L of dissolved oxygen, 0.5 mg/L of NO2−N, 2.0 mg/L of ammonia nitrogen, and 10 mg/L of BOD5...
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PHYSICAL - CHEMICAL TREATMENT OF WATER AND WASTEWATER - CHAPTER 16 potx
Ngày tải lên :
11/08/2014, 10:22
... 16.1 Unit operations of ion exchange of ions takes place This exchange of ions is the chemical reaction of the unit process of ion exchange; the mere physical passing through of the water with the ... DESIGN OF ION EXCHANGERS Generally, designs of ion exchangers should include the following: quantity of exchange materials and regenerants; dimension of the bed (volume of bed); interval of bed ... having intervals of hours The raw 2+ 2+ water contains 80 mg/L of Ca and 15 mg/L of Mg The exchanger is a resin of exchange capacity of 1412.8 geq/m Assume that the packed density of the resin...
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PHYSICAL - CHEMICAL TREATMENT OF WATER AND WASTEWATER - CHAPTER 17 (END) ppt
Ngày tải lên :
11/08/2014, 10:22
... unit of oxidizing power as chlorine The unit of disinfecting power of chlorine may be found as follows in terms of one mole of electrons: − Cl + 2e → 2Cl − (17.45) From this equation, the unit of ... O (17.46) From this equation, the unit of disinfecting power of NaOCl is NaOCl/2 = 37.24 Therefore, the available chlorine of NaOCl is the ratio of the mass of chlorine to the mass of NaOCl that ... addition of one mole of HOCl to one mole of ammonia does not guarantee complete conversion into NH2Cl At these pH values, the one mole of HOCl added becomes lesser, because of the predominance of the...
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09 Physical and Chemical Characteristics of DDGS revisions.
Ngày tải lên :
08/08/2012, 10:03
... Physical & Chemical Characteristics of U.S DDGS Physical and chemical characteristics of distiller’s dried grains with solubles (DDGS) vary ... summer of 2001 where representative samples of DDGS (4.5 kg) were obtained from 16 ethanol plants in Minnesota, South Dakota and Missouri From these samples, a 200 gram subsample of DDGS from each ... overheated 08 - Physical & Chemical Characteristics of DDGS Particle Size, Bulk Density and pH Particle size and particle size uniformity of feed ingredients are important considerations of livestock...
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Different physical and chemical pretreatments of wheat straw for enhanced biobutanol production in simultaneous saccharification and fermentation
Ngày tải lên :
05/09/2013, 15:28
... were purchased from Sigma-Aldrich and were used as received Monoethanolamine was purchased from VWR Cooked meat medium was purchased from Oxoid 2.2 Methods 2.2.1 Physical pretreatment of wheat straw ... reesei with the enzyme activity of 700 IU/g, and Novozyme 188 is composed of Cellobiase from Aspergillus niger with the enzyme activity of 250 IU/g The effect of temperature was examined where ... Thirmal achieved a B.A.Sc degree in Chemical Engineering in 2007 from University of Waterloo Also received a M.A.Sc degree in Chemical Engineering in 2010 from Ryerson University Master's thesis...
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Tài liệu Báo cáo " Chemical composition of essential oil of Machilus Japonica Siebold & Zucc. (Lauraceae) from Vietnam " pptx
Ngày tải lên :
12/02/2014, 17:20
... oil of investigated species from Vietnam was characterized by large amount of α- and βphellandrene (70.7%) and the ratio of αphellandrene and β-phellandrene was 5.73 Table The composition of leaf ... for base research from the Ministry of Science and Technology of Vietnam, code 50 63 06 References [1] N.X Dung, P.V Khien, Essential oils of wood, root, flower, and fruit of camphor tree, Pharmaceutical ... 40-400 Identification of the constituents of essential oil was made by comparison of their mass spectra with nbs75l library spectra data Relative percentage amounts were calculated from FID peak areas...
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Tài liệu PHYSICAL AND CHEMICAL ASPECTS OF ORGANIC ELECTRONIC doc
Ngày tải lên :
16/02/2014, 19:20
... nature of the organic/inorganic interfaces The analysis of OFET device characteristics allows many of the key problems in organic electronics to be stressed, ranging from fundamentals (nature of ... orientation of the molecules (ii) Processability of Organic Compounds for Applications in Organic Electronics In general, for the realisation of OFETs two classes of materials are available: polymers ... various aspects of OFETs, including the synthesis of new materials, preparation and characterisation of organic thin films, characterisation of device properties and the development of new device...
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Tài liệu PHYSICAL, CHEMICAL, AND MECHANICAL PROPERTIES OF BAMBOO AND ITS UTILIZATION POTENTIAL FOR FIBERBOARD MANUFACTURING docx
Ngày tải lên :
22/02/2014, 09:20
... expected [Leithoff and Peek 2001] Since the amount of each chemical composition of bamboo varies with age, height, and layer, the chemical compositions of bamboo are correlated with its physical and ... Composition 2.1 Introduction The chemical composition of bamboo is similar to that of wood Table 2-2 shows the chemical composition of bamboo [Higuchi 1957] The main constituents of bamboo culms are cellulose, ... height location on physical, chemical, and mechanical properties of bamboo were investigated following specific objectives The study consisted of the To determine chemical properties of bamboo, including...
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