Removal of citrate and hypophosphite binary components using Fenton,photo-Fenton and electro-Fenton processes  

作　　者：Yao-Hui Huang Hsiao-Ting Su Li-Way Lin 

机构地区：[1]Department of Chemical Engineering, "National" Cheng Kung University, Tainan 701, Taiwan, China. [2]Sustainable Environment Research Center, Tainan 701, Taiwan, China

出　　处：《Journal of Environmental Sciences》2009年第1期35-40,共6页环境科学学报（英文版）

基　　金：The authors thank the "National" Science Council, Taiwan, China for financially supporting (No. NSC95- 2211-E-006-032).

摘　　要：Both citrate and hypophosphite in aqueous solution were degraded by advanced oxidation processes （Fe^2＋/H2O2, UV/Fe^2＋/H2O2, and electrolysis/Fe^2＋/H2O2） in this study. Comparison of these techniques in oxidation efficiency was undertaken. It was found that Fenton process could not completely degrade citrate in the presence of hypophosphite since it caused a series inhibition. Therefore, UV light （photo-Fenton） or electron current （electro-Fenton） was applied to improve the degradation efficiency of the Fenton process. Results showed that both photo-Fenton and electro-Fenton processes could overcome the inhibition of hypophosphite, especially the electro-Fenton.Both citrate and hypophosphite in aqueous solution were degraded by advanced oxidation processes （Fe^2＋/H2O2, UV/Fe^2＋/H2O2, and electrolysis/Fe^2＋/H2O2） in this study. Comparison of these techniques in oxidation efficiency was undertaken. It was found that Fenton process could not completely degrade citrate in the presence of hypophosphite since it caused a series inhibition. Therefore, UV light （photo-Fenton） or electron current （electro-Fenton） was applied to improve the degradation efficiency of the Fenton process. Results showed that both photo-Fenton and electro-Fenton processes could overcome the inhibition of hypophosphite, especially the electro-Fenton.

关 键 词：CITRATE HYPOPHOSPHITE WASTEWATER advanced oxidation processes FENTON PHOTO-FENTON ELECTRO-FENTON 

分 类 号：X703[环境科学与工程—环境工程]