Study on the treatment of flame retardants wastewater by electro-Fenton method

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  • 1. College of Chemistry, Sichuan University, Chengdu 610064, China;
    2. College of Biological Engineering,Xihua University, Chengdu 610039, China

Received date: 2004-10-10

  Online published: 2010-10-01

Abstract

The highly concentrated organic wastewater of flame retardants is treated by electro-Fenton method(CODCr = 17 108 mg/L). The optimal operat ion conditions include the following factors, pH=2.0~2.6, the current density is 10.8 ~ 14.3 A/dm2, the original concentration of H2O2 is 27 ~ 42 mmol/L, the original mass concentration of FeSO4 is 660 ~ 990 mg/L, the electrolyt ic time is 5 h. The CODCr removal efficiency is 98.34%,and utilization ratio of reagent and energy is 136.1%. The method not only utilizes the electrolytic oxi dation and electrolytic floatation, but also utilizes strong oxidation and chem istry flocculation function of Fenton reagent. GC - MS shows degradation produc t of wastewater which is treated by the above-mentioned method mainly is harmles s acetic acid.

Cite this article

He Xihui, Zhang Yu, Cheng Qiong, Du Xiaoyan, Xie Jiali . Study on the treatment of flame retardants wastewater by electro-Fenton method[J]. Industrial Water Treatment, 2005 , 25(6) : 30 -33 . DOI: 10.11894/1005-829x.2005.25(6).30

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