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篇目详细内容

【篇名】 Oxidative treatment of aqueous monochlorobenzene with thermally-activated persulfate
【刊名】 Frontiers of Environmental Science and Engineering in China
【刊名缩写】 Front.Environ.Sci.Engin.China
【ISSN】 2095-2201
【EISSN】 2095-221X
【DOI】 10.1007/s11783-013-0544-x
【出版社】 Higher Education Press and Springer-Verlag Berlin Heidelberg
【出版年】 2014
【卷期】 8 卷2期
【页码】 188-194 页,共 7 页
【作者】 Qishi LUO;
【关键词】 persulfate; monochlorobenzene; advanced oxidation process

【摘要】
The oxidation of aqueous monochlorobenzene (MCB) solutions using thermally- activated persulfate has been investigated. The influence of reaction temperature on the kinetics of MCB oxidation was examined, and the Arrenhius Equation rate constants at 20°C, 30°C, 40°C, 50°C, and 60°C for MCB oxidation performance were calculated as 0, 0.001, 0.002, 0.015, 0.057?min?1, which indicates that elevated temperature accelerated the rate. The most efficient molar ratio of persulfate/MCB for MCB oxidation was determined to be 200 to 1 and an increase in the rate constants suggests that the oxidation process proceeded more rapidly with increasing persulfate/MCB molar ratios. In addition, the reactivity of persulfate in contaminated water is partly influenced by the presence of background ions such as Cl?, , , and . Importantly, a scavenging effect in rate constant was observed for both Cl? and but not for other ions. The effective thermally activated persulfate oxidation of MCB in groundwater from a real contaminated site was achieved using both elevated reaction temperature and increased persulfate/MCB molar ratio.
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