Ozone Reaction Kinetics for Water and Wastewater Systems - Chapter 11 (end) ppt
Ozone Reaction Kinetics for Water and Wastewater Systems - Chapter 11 (end) ppt
... from the Staeheling and Hoigné mechanism68 where wastewater and gas phases were considered perfectlymixed. Reaction (11. 83), for the ozone direct reactions, and Reaction (11. 84) werealso included ... balance7,2002 Ozone/ natural water and ozone/ wastewater (Theoretical studies) Ozone bubble columns Slow and fast regimes, comparison of axial dispersion and back flow cell models for the ozonation ... Pa020406080100HaDCODkOOL233=ε©2004 CRC Press LLC2. For ozone in the water phase: (11. 62)3. For any nonvolatile species in water: (11. 63)4. In case the water contains ozone reacting volatile species:a. For any volatile species,...
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Ozone Reaction Kinetics for Water and Wastewater Systems - Chapter 1 pptx
... Chapter 7 Kinetics of Indirect Reactions of Ozone in Water 7.1 Relative Importance of the Direct Ozone B Reaction and the Ozone Decomposition Reaction 7.1.1 Application of Diffusion and Reaction ... homogeneous and heterogeneous ozone reactions. Chapter 4 and Chapter 5 continue with studies ondirect ozone reaction kinetics, but they exclusively deal with heterogeneous gas–liquid reaction kinetics ... Type of Water and Gas Flows 11. 6 Mathematical Models 11. 6.1 Slow Kinetic Regime 11. 6.1.1 Both Gas and Water Phases in Perfect Mixing Flow 11. 6.1.2 Both Gas and Water Phases in Plug Flow 11. 6.1.3...
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Ozone Reaction Kinetics for Water and Wastewater Systems - Chapter 2 potx
... treat wastewater? Try ozone, Chem. Eng., May, 112 116 , 1993.6. Hoigné, J., Chemistry of Aqueous Ozone and Transformation of Pollutants by ozona-tion and Advanced Oxidation Processes, in The Handbook ... organic and inorganic matrix of the wastewater. In Chapter 6 aspects related to the treatment of ozone kinetics of wastewater are presented.2.5.1 THE OZONE DECOMPOSITION REACTION The fact that ozone ... organic (and someinorganic) matter present in water. 2 For this reason, ozone reactions in water can beclassified as direct and indirect reactions. The direct reactions are the true ozone reactions,...
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Ozone Reaction Kinetics for Water and Wastewater Systems - Chapter 3 docx
... 20ºC: 1,5-naphthalene-disulphonic acid: 41. 1-naphthalene-sulphonic acid: 252. 3-nitrobenzene-sulphonic acid: 2239 (2002)Methyl-t-butyl-ether 2-L Batch reactor for determination of reaction ... compounds. Ozone reactions in water and wastewater are heterogeneous parallel-series gasliquid reactions in which a gas component (ozone) transfers from the gas phase(oxygen or air) to the water ... constant of the ozone- phenol reaction follows equation (3.22): (3.22)where kNdis and kdis are the rate constants of the reactions of ozone with the nondis-sociating and dissociating forms of...
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Ozone Reaction Kinetics for Water and Wastewater Systems - Chapter 4 ppt
... Danckwerts 11 found ananalytical solution for the case of fast reactions (CAb = 0) and Ha1 > 1: (4.58)4.2.2.2 Irreversible Second-Order Reactions For the kinetics of the second-order gas–liquid ... following approx-imate solution of the reaction factor for second order reactions (4.49) and (4.50): (4.75) (4.76)with (4.77)Finally, a trial -and- error procedure allows the reaction factor ... below for the film and Danckwerts theories. The cases that aretreated correspond to irreversible first- (or pseudo first-) and second-order reactionswhich are usually the case of simple ozonation reactions...
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Ozone Reaction Kinetics for Water and Wastewater Systems - Chapter 5 docx
... of ozone decomposition in water carried out at pH 2 and 7, the rate constant of the ozone decomposition reaction FIGURE 5.3 Variation of the Henry constant for the ozone water system with pH and temperature. ... SECONDARY REACTIONSOnce the ozone decomposition reaction has been suppressed, the next step beforeaccomplishing the kinetic study of any ozone- B direct reaction is to check theimportance of ozone reactions ... present in water that reacts with ozone directly and k2j, kd, and kT are the rate constants of the ozone direct, hydroxyl-ion-initiated decomposition, and other initiation reactions, respectively....
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Ozone Reaction Kinetics for Water and Wastewater Systems - Chapter 6 ppsx
... cycleb = basic cycleb (Simple ozonation)b-a-ba-b-ab-a-b-a-ba-b-a-b©2004 CRC Press LLCexperimental conditions applied. For this kinetic regime the ozone absorption rateis [see also Equation ... Coefficient Corresponded to Ozone- Buffered Water and Ozone- Tomato Wastewater Systems a Ozone System System Characteristics He ؋ 10–6kLa ؋ 102Reference Ozone- buffered water pH 7, 12ºC, I = 0.01 ... H2O2/UV-C, and TiO2/UV-A, Water Res., 36, 114 3 115 4, 2002.19. Toffani, G. and Ruchard, Y., Use of ozone for the treatment of a combined urban and industrial effluent: a case history, Ozone Sci....
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Ozone Reaction Kinetics for Water and Wastewater Systems - Chapter 7 pps
... Ozonation of US drinking water sources: HO concentration and oxidation-competition values, in Ozone in Water and Wastewater, Proceedingsof 11th Ozone World Congress, Vol 2, S-1 7-1 19–125, San Francisco, ... THE DIRECT OZONE B REACTION AND THE OZONE DECOMPOSITION REACTION * In Section 5.2 and Section 5.3, the kinetic regimes of the ozone decomposition reaction and any ozone B direct reaction were ... initiation reactions of ozone decomposition (i.e., reactions of ozone with hydrogen peroxide, direct ozone photolysis,or some catalytic-induced reaction) that constitute the so-called ozone- involvedadvanced...
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Ozone Reaction Kinetics for Water and Wastewater Systems - Chapter 9 pptx
... alachlor in water, Water Env. Res., 72, 689–697, 2000.35. Beltrán, F.J., García-Araya, J.F., and Álvarez, P.M., Sodium dodecylbenzene sulfonateremoval from water and wastewater, 1. Kinetics of ... 2214–2220, 2000.36. Chang, P.B.L. and Young, T., Kinetics of methyl tert-butyl ether degradation and by-product formation during UV/Hydrogen peroxide water treatment, Water Res., 34,2233–2240, 2000.37. ... H2O2/UV, Water Res., 28, 2507–2519, 1994. 11. Glaze, W.H., Lay, Y., and Kang, J.W., Advanced oxidation processes. A kinetic model for the oxidation of 1,2-dibromo-3-chloropropane in water by...
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Ozone Reaction Kinetics for Water and Wastewater Systems - Chapter 10 pot
... be formed from the reaction between photogenerated and adsorbed hydrogenperoxide and ozone in a similar way that occurs in the ozone/ hydrogen peroxide and ozone/ UV systems (see Chapter 8 or Chapter ... influences the kinetics. For a given first-ordercatalytic ozone reaction and zero-order for B (usual case in heterogeneous catalyticozonation66), and according to Equation (10.28) and Equation ... titanium dioxide suspensions, Proc. 11th Ozone World Congress, Inter-national Ozone Association, S-1 5-8 -S-1 5-2 4, San Francisco, CA, 1993.84. Kopf, P., Gilbert, E., and Eberle, S.H., TiO2 photocatalytic...
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