作者：Zhang, Hui ; Ran, Xiaoni ; Wu, Xiaogang

来源出版物：JOURNAL OF HAZARDOUS MATERIALS 卷：241 页：259-266 出版年：NOV 30 2012

摘要：The treatment of mature landfill leachate by EF-Fere (also called Fered-Fenton) method was carried out in a continuous stirred tank reactor (CSTR) using Ti/RuO2-IrO2-SnO2-TiO2 mesh anodes and Ti mesh cathodes. The effects of important parameters, including initial pH, inter-electrode gap, H2O2 to Fe2+ molar ratio, H2O2 dosage and hydraulic retention time, on COD removal were investigated. The results showed that the complete mixing condition was fulfilled in the electrochemical reactor employed in this study and COD removal followed a modified pseudo-first order kinetic model. The COD removal efficiency increased with the decrease of H2O2 to Fe2+ molar ratio and hydraulic retention time. There existed an optimal inter-electrode gap or H2O2 dosage so that the highest COD removal was achieved. Nearly the same COD removal was obtained at initial pH 3 and 5, but the steady state was quickly achieved at initial pH 3. The organic pollutants in the leachate were analyzed through a gas chromatography coupled with mass spectrometry (GC-MS) system. About 73 organics were detected in the leachate, and 52 of which were completely removed after EF-Fere process.

文献类型：Article

语种：English

作者关键词：Electro-Fenton; EF-Fere method; Landfill leachate; CSTR; COD removal; GC-MS

扩展关键词：RESPONSE-SURFACE METHODOLOGY; ZERO-VALENT IRON; WASTE-WATER; ELECTROCHEMICAL OXIDATION; ULTRASONIC IRRADIATION; DEGRADATION; REAGENT; OPTIMIZATION; BIOREACTOR; POLLUTANTS

通讯作者地址：Zhang, H,Wuhan Univ, Dept Environm Engn, Hubei Biomass Resource Chem & Environm Biotechnol, POB C319,Luoyu Rd 129, Wuhan 430079, Peoples R China.

地址：

[Zhang, Hui ; Ran, Xiaoni ; Wu, Xiaogang]Wuhan Univ, Dept Environm Engn, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China

电子邮件地址eeng@whu.edu.cn?eeng@whu.edu.cn?eeng@whu.edu.cn" target=_blankeeng@whu.edu.cn" data-ke-src=" /index.html?>eeng@whu.edu.cn" data-ke-src=" /index.html?>eeng@whu.edu.cn" target=_blankeeng@whu.edu.cn

学科类别：Engineering; Environmental Sciences & Ecology