The Dechlorination of Pentachlorophenol by Zerovalent Iron in Presence of Carboxylic Acids
文献类型： 外文期刊
作者： Hou, Meifang 1 ; Wan, Hongfu 1 ; Zhou, Qixing 1 ; Liu, Xinming 1 ; Luo, Wei 1 ; Fan, Yanning 1 ;
作者机构： 1.Guangdong Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Agr Environm Pollut Integrated, Guangzhou 510650, Guangdong, Peoples R China
关键词： dechlorination efficiency;pH buffering property;reductive activity
期刊名称：BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY （ 影响因子：2.151； 五年影响因子：2.129 ）
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收录情况： SCI
摘要： The dechlorination of pentachlorophenol (PCP) by zerovalent iron (Fe-0) in presence of low molecular weight carboxylic acids was investigated. The experimental results showed that oxalic acid was advantaged among the selected acids for the dechlorination of PCP. The lower pH value and the higher dosage of Fe-0 were favorable for the enhancement of dechlorination efficiency. With their strong complexing and pH buffering properties, carboxylic acids favored the fresh surface of iron, which benefits to the dechlorination of PCP by Fe-0. Moreover, the oxalate-iron complexes have more reductive activities and then lead to the highest dechlorination efficiency of PCP by Fe-0.
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