Ozone Reaction Kinetics for Water and Wastewater Systems - Chapter 2 potx

... O+→+++ −+ 22 2 2 BrO H O Br H O −− +→+ 22 2 BrO Br Br BrO −− +•→+• 22 22 BrO H O BrO BrO H•+ →++ −−+ BrO HO BrO OH 22 −− +•→•+ 2 224 BrO Br O•→ Br O BrO 24 2 2→• Br O OH BrO BrO H 24 3 2 +→++ −−−+ CO ... 0. 42 Iodine 0.54 0 .26 Oxygen 0.40 0.19 OO O O 32 3 2 +•→•+ −− OFe FeO O 3 2 22 +→+ ++ NO H O e NO H 22 3 22 −−−+ +−→+ OH e OHO 322 22...

Ngày tải lên: 11/08/2014, 17:22

... Contents Chapter 1 Introduction 1.1 Ozone in Nature 1 .2 The Ozone Molecule References Chapter 2 Reactions of Ozone in Water 2. 1 Oxidation–Reduction Reactions 2. 2 Cycloaddition Reactions 2. 3 ... Irreversible First-Order or Pseudo First-Order Reactions 4 .2. 1 .2 Irreversible Second-Order Reactions 4 .2. 1.3 Series-Parallel Reactions 4 .2. 2 Danckwerts Surface Ren...

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... at 20 ºC: 1,5-naphthalene-disulphonic acid: 41. 1-naphthalene- sulphonic acid: 25 2. 3-nitrobenzene-sulphonic acid: 22 39 (20 02) Methyl-t-butyl-ether 2- L Batch reactor for determination of reaction ... wastewater containing 3-methyl-piperidine, Ozone Sci. Eng., 23 , 189–198, 20 01. 34. Shawwa, A.R. and Smith, D.W., Kinetics of microcystin-LR oxidation by ozone, Ozone...

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... 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 gas–liquid reaction (4. 32) , the case ... different Ha 2 ) is usually found in plots with k 2 /k 1 as parameter as literature reports. 10 4 .2. 2 DANCKWERTS SURFACE RENEWAL THEORY 4 .2. 2.1 First-Order or Pseudo Firs...

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... 27 3–345 Fe 3+ 0.1161 HPO 4 2 0.1499 H 2 S –0.0333 Not available 29 8 La 3+ 0 .22 97 SO 3 2 0. 127 0 SO 2 –0.0817 +0 .27 5 28 3–363 Ce 3+ 0 .24 06 SO 4 2 0.1117 SF 6 0.0100 Not available 29 8 Th 4+ 0 .27 09 S 2 O 3 2 0.1149 PO 4 3– 0 .21 19 (Fe(CN) 6 ) 4– a Source: ... available 29 8 Cd 2+ 0.1869 H 2 PO 4 – 0.0906 C 2 H 6 0.0 120 –0.601 27 3–348 Al 3+ 0 .21 74 HSO 3...

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... 100 120 COD, 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 20 0 Time (min) COD/COD o a = acid cycle b = basic cycle b (Simple ozonation) b-a-b a-b-a b-a-b-a-b a-b-a-b 20 04 ... Corresponded to Ozone- Buffered Water and Ozone- Tomato Wastewater Systems a Ozone System System Characteristics He ؋ 10 –6 k L a ؋ 10 2 Reference Ozone- buffered wa...

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... drinking water sources: HO concentration and oxidation-competition values, in Ozone in Water and Wastewater, Proceedings of 11th Ozone World Congress, Vol 2, S-1 7-1 19– 125 , San Francisco, CA, 1993. 22 . ... towards molecular ozone and hydroxyl radicals, Water Res., 33, 22 65 22 76, 1999. 24 . Yurteri, C. and Gurol, M. Ozone consumption in natural waters: effect...

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... B B B = 2 303 0 . φε rIF UV B B = 0 φ r r kC kCkC R UV HOM H O HO HOT BB OHS S H H O T = + () ∑ 2 22 22 22 22 εφ φε r r k k R UV HOM H O HO BBH = 2 22 22 εφ φε 20 04 CRC Press LLC 9 .2 KINETICS ... /r UV 10 6 10 5 10 4 10 3 10 2 10 1 10 0 10 –1 10 2 10 –3 10 –4 C H2O2t = 5×10 –3 , M C H2O2t = 5×10 –5 , M C H2O2t = 5×10 –1 , M log log log r r kC kC kC R UV HOB BB HO HO H...

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... determination 86 Vinasse wastewater: COD: 110 gL –1 , O 3 , O 3 /H 2 O 2 , O 3 /H 2 O 2 /UV, O 3 /H 2 O 2 /UV/TiO 2 1 l semibatch ozone photoreactor, UV Hg vapor lamp (20 0–800 nm), TiO 2 : 2gl –1 , C H2O2 ... proposed and kinetic study pH 4 optimum 24 UV/O 3 /TiO2, UV/TiO2, UV/O 3 /Fe(II) 2, 4dichlorophenoxyacetic acid (2, 4-D): 2 × 10 -3 M Catalys...

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... American Chemical Society.) NO 2 NO 2 NO 2 O 3 O 3 O 3 O 2 H 2 O 2 HO 2 · HO 2 · HO 2 · HO 2 · H 2 O 2 O 2 N O 2 N O 2 O 3 NO 2 NO 2 (A) (B) (B) (A) A) OH OH 1 1 2 2 Lower molecular weight compounds B) Lower ... × 10 2 , mg dm –3 56 58 60 62 64 P O3s , P a 0 20 40 60 80 100 Ha DCOD k OO L 2 33 = ε 20 04 CRC Press LLC 2. For ozone in the water...

Ngày tải lên: 11/08/2014, 17:22