标题：Degradation of clofibric acid in aqueous solution by an EC/Fe3+/PMS process作者：Lin, Heng; Wu, Jie; Zhang, Hui

来源出版物：CHEMICAL ENGINEERING JOURNAL 卷：244 页：514-521 DOI：10.1016/j.cej.2014.01.099 出版年：MAY 15 2014

摘要：The removal of clofibric acid (CA) in aqueous solution by ferrous ion activated peroxymonosulfate (PMS) oxidation in an electrochemical reactor (EC/Fe3+/PMS) was performed in this study. The process involved the use of a dimensionally stable anode (DSA) and a stainless steel cathode. Ferrous ion was produced from cathodic reduction of externally applied ferric ion and activated PMS for the generation of sulfate radicals (SO4 center dot-). Various parameters were investigated to optimize the process, including PMS concentration, Fe3+ concentration and current density. The results indicated that the removal efficiency increased with the increase of PMS concentration, Fe3+ concentration and current density. The scavenging effect was examined by using ethanol (EtOH) and tert-butyl alcohol (t-BuOH) to identify the reactive radicals in EC/Fe3+/PMS process. The TOC removal efficiency was 30.8% in 60 min reaction, and it reached 64.7% when the reaction time was extended to 180 min. The GC-MS analysis was employed to identify the intermediate products and a plausible degradation pathway was proposed.

入藏号：WOS:000334134700061

文献类型：Article

语种：English

作者关键词：Clofibric acid, Electrochemical oxidation, Ferric iron, Peroxymonosulfate, Sulfate radicals

扩展关键词：ELECTRO-FENTON METHOD; PERSONAL CARE PRODUCTS; THERMALLY ACTIVATED PERSULFATE; ADVANCED OXIDATION PROCESSES; SUPPORTED COBALT CATALYSTS; LANDFILL LEACHATE; WASTE-WATER; 2,4,5-TRICHLOROPHENOXYACETIC ACID; HETEROGENEOUS ACTIVATION; PHARMACEUTICAL RESIDUES

通讯作者地址：Zhang, Hui; Wuhan Univ, Hubei Biomass Resource Chem & Environm Biotechnol, Dept Environm Engn, Wuhan 430079, Peoples R China.

电子邮件地址：eeng@whu.edu.cn

地址：

[Lin, Heng; Wu, Jie; Zhang, Hui]Wuhan Univ, Hubei Biomass Resource Chem & Environm Biotechnol, Dept Environm Engn, Wuhan 430079, Peoples R China.

研究方向：Engineering

ISSN：1385-8947