催化还原技术处理水溶液中氯代有机物的实验研究
收稿日期: 2004-04-07
网络出版日期: 2010-10-01
基金资助
国家高技术发展专项经费资助(863项目);编号:2002AA601270
Dechlorination of chlorinated organic matter in aqueous solution by catalytic reduction
Received date: 2004-04-07
Online published: 2010-10-01
吴德礼, 马鲁铭 . 催化还原技术处理水溶液中氯代有机物的实验研究[J]. 工业水处理, 2005 , 25(1) : 21 -24 . DOI: 10.11894/1005-829x.2005.25(1).21
The dechlorination of chloroalkane in aqueous solution by catalytic reduction for the typical chlorinated organic matter tetrachloromethane and tetrachloroethane by using waste iron paring as reducing agent and adding catalyst and polarizing materials has been studied. Results show that chlorinated organic matter can be reductive dechlorination with zero-valent iron, so the toxicity of chlorinated organic matter is reduced quickly. The effect of the concentration of organic matter on the reaction speed is studied. The intermediate products in the course of reaction are analyzed. The results show that the intermediate product of tetrachloromethane is dichloromethane while the intermediate product of tetrachloroethane is dichloroethylene. The main reaction mechanism is that the chlorinated organic matter gain electrons directly, and let reductive dechlorination take place.
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