Phsicochemical Treatment of Hazardous Wastes - Chapter 12 doc

... Physicochemical Treatment of Hazardous Wastes TABLE 12. 5 Specific Rate Constants and Relative Rates of Reaction of Substituted Benzene, Toluene, and Phenols C 6 H 6 X p-XC 6 H 4 CH 3 m-XC 6 H 4 OH Substituent ... 28(5), 122 7 123 7, 1992. With permission.) TX69272_C12.fm Page 474 Friday, November 14, 2003 2:10 PM © 2004 by CRC Press LLC 466 Physicochemical Treatment of Haz...

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... unit of the rate constant of a zero-order reaction is (time) –1 (con- centration) 1 . The rate of zero-order reaction is independent of the concentration of the reactant, which is often ... Physicochemical Treatment of Hazardous Wastes • Cyclo-addition (Criegee mechanism) — As a result of its dipolar struc- ture, an ozone molecule may lead to three dipolar cyclo-ad...

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... 2003 12: 32 PM © 2004 by CRC Press LLC 520 Physicochemical Treatment of Hazardous Wastes TABLE 13.14 Summary of Design Features for Continuous PRB and Funnel-and-Gate Continuous PRBs Funnel-and-Gate ... of zero-valent iron, but the application of treating nitrate-contaminated water has not been exten- sively studied (Siantar et al., 1996). 13.6 Summary The mechanism of the r...

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... Summary References Chapter 2 Environmental Hazardous Wastes 2.1 Introduction 2.2 Classification of Hazardous Pollutants 2.3 Sources of Hazardous Waste 2.4 Contaminated Media of Hazardous Wastes 2.4.1 ... radical reactions. Chapter 6 to Chapter 12 focus on each of the eight most important AOPs. Chapter 13 presents a major reductive treatment technology, ze...

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... 1989. Cheremisinoff, P.C., Ed., Encyclopedia of Environmental Control Technology, Vol. 1: Ther- mal Treatment of Hazardous Waste, Gulf Publishing, Houston, TX, 1989. Cheremisinoff, P.C., Ed., Encyclopedia of ... Innovative Treatment Technologies: Annual Status Report, 8th ed., EPA-542-R-9 6- 010, U.S. Environmental Protection Agency, Of ce of Solid Waste and Emergency Respon...

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... 1995. Charles, A.W., Ed., Hazardous Waste Management, McGraw-Hill, New York, 1989. Cheremisinoff, P.C., Ed., Encyclopedia of Environmental Control Technology, Vol. 1: Ther- mal Treatment of Hazardous Waste, ... AgSH CdOH – CoOH – Zn(OH) – Ag 3 S 3 H 3 2- Me-SR Me-OOCR Me-lipids Me-humic-acid polymers “Lakes” “Gelhstoffe” Me-polysaccharides FeOOH Fe(OH)...

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... Physicochemical Treatment of Hazardous Wastes About 10 to 16% of total 2,4-D was adsorbed, whereas 89% of total Meto- lachlor was adsorbed. The complexes of Fe-GAL, -HEIDA, and -NTA have comparatively ... the relative rate constants of 2-chlorophenol (2-CP) and 2,4, 6- TCP with respect to 2,4-DCP can be calculated. The oxidation and dechlo- rination constants of 2,4-DCP w...

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... presence of scaveng- TX69272_C08.fm Page 290 Tuesday, November 11, 2003 12: 09 PM © 2004 by CRC Press LLC 320 Physicochemical Treatment of Hazardous Wastes Shen, Y S. and Young, K., Treatment of ... Constant (mol ^-1 .m^3) TX69272_C08.fm Page 312 Tuesday, November 11, 2003 12: 09 PM © 2004 by CRC Press LLC 288 Physicochemical Treatment of Hazardous Wastes...

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... major by-product was found to be 2,3,5-trichloro-1,4-hydro- quinone. After 60 min of reaction, the toxicity of the intermediates was less than that of 2,3,5-TCP. The toxicity of 3,5-DCP and 2,4-DCP ... for all of the phenols studied. The decay kinetics for phenol; p-methoxyphenol; p-cresol; p-fluo- rophenol; p-chlorophenol; p-bromophenol; 4-hydroxyacetophenone; a,a,a- trifluoro-p-cres...

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... decompo- sition of 3-HBA is completely inhibited by the addition of 0.1-mM t-BuOH, which is an effective scavenger of hydroxyl radicals. Therefore, the main degradation mechanism is the reaction of ... Terzian, R., Hidaka, H., and Pelizzetti, E., Ultrasonic-induced dehalo- genation and oxidation of 2-, 3-, and 4-chlorophenols in air-equilibrated aque- ous media: similarities wit...

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