Ozone Reaction Kinetics for Water and Wastewater Systems - Chapter 5 docx

... introduced for a batch system and related to the ozone absorption rate for this kinetic regime with the use of Equation (5. 48). Then, Equation (5. 55) is obtained: (5. 55) Integration of Equation (5. 55) ... 17.1 56 1.23 × 10 6 AE = 13.6 78 Phloroglucinol, pH 2, 20ºC 2.12 × 10 5 AE = 42 .5 56 2.14 × 10 5 AE = 40.8 78 Phloroglucinol, pH 7, 20ºC 9.67 × 10 5 AE = 53 .5 56...

Ngày tải lên: 11/08/2014, 17:22

... Ozonation Kinetics Compound Observations Reference # and Year Phenol SF, AKC, 5 to 35 C, pH = 1 .5 5. 2, n = m = 1, 1/z = 2, k = 8 95 ( 25 C, pH 1 .5) , k = 2 952 0 ( 25 C, pH 5. 2), AE = 5. 74 kcalmol –1 15 ... 20ºC: 1 , 5- naphthalene-disulphonic acid: 41. 1-naphthalene- sulphonic acid: 252 . 3-nitrobenzene-sulphonic acid: 22 39 (2002) Methyl-t-butyl-ether 2-L Batch reactor...

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... Diffusion and Reaction Times References Chapter 5 Kinetic Regimes in Direct Ozonation Reactions 5. 1 Determination of Ozone Properties in Water 5. 1.1 Diffusivity 5. 1.2 Ozone Solubility: The Ozone Water ... homogeneous and heterogeneous ozone reactions. Chapter 4 and Chapter 5 continue with studies on direct ozone reaction kinetics, but they exclusively...

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... 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 some inorganic) matter present in water. 2 For this reason, ozone reactions in water can be classified as direct and indirect reactions. The dir...

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... 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 ... an analytical solution for the case of fast reactions (C Ab = 0) and Ha 1 > 1: (4 .58 ) 4.2.2.2 Irreversible Second-Order Reactions For the kinetics of the second-order...

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... Lh –1 7. 05 b 6.99 × 10 –2 92 Ozone wastewater Tomato wastewater, COD = 50 0 mgL –1 , pH = 6 .5 7.8, 17–18ºC, 35 Lh –1 9. 95 c 92 Ozone wastewater Domestic wastewater, COD = 300 mgL –1 , pH 7 .5, 20ºC 7.60 c 90 a ... g/L 1.4 1.6 1.8 2.0 2.2 2.4 2.6 0.0 0.2 0.4 0.6 0.8 1.0 0 50 100 150 200 Time (min) COD/COD o a = acid cycle b = basic cycle b (Simple ozonation) b-a-b a-b-a b-a-b-a...

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... 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 ... of US drinking water sources: HO concentration and oxidation-competition values, in Ozone in Water and Wastewater, Proceedings of 11th Ozone World Congress, Vo...

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... (9 .55 ), in Equation (9 .57 ): (9 .59 ) By taking the values of k 0 [Equation (9 .55 )] and C O3 , Equation (9 .58 ), substituted in Equation (9 .59 ) the contributions of both ozone reactions to the ozone ... alachlor in water, Water Env. Res., 72, 689–697, 2000. 35. Beltrán, F.J., García-Araya, J.F., and Álvarez, P.M., Sodium dodecylbenzene sulfonate removal from water and...

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... 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., TiO 2 photocatalytic oxidation of monocholoro- acetic ... the kinetics. For a given first-order catalytic ozone reaction and zero-order for B (usual case in heterogeneous catalytic ozonation 66 ), and according to Equati...

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... value of ozone concentration in the gas between entrance and outlet concentrations, total mass balance of ozone instead of ozone gas balance 7, 2002 Ozone/ natural water and ozone/ wastewater ... started from the Staeheling and Hoigné mechanism 68 where wastewater and gas phases were considered perfectly mixed. Reaction (11.83), for the ozone direct reactions...

Ngày tải lên: 11/08/2014, 17:22