Transformation characteristics of refractory pollutants in plugboard wastewater by an optimal electrocoagulation and electro-Fenton process | |
Zhao, Xu ; Zhang, Baofeng ; Liu, Huijuan ; Chen, Fayuan ; Li, Angzhen ; Qu, Jiuhui | |
刊名 | CHEMOSPHERE
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2012 | |
卷号 | 87期号:6页码:631-636 |
关键词 | Electrocoagulation Electro-Fenton Plugboard wastewater Refractory pollutants |
ISSN号 | 0045-6535 |
中文摘要 | The treatment of the plugboard wastewater was performed by an optimal electrocoagulation and electro-Fenton. The organic components with suspended fractions accounting for 30% COD were preferably removed via electrocoagulation at initial 5 min. In contrast, the removal efficiency was increased to 76% with the addition of H2O2. The electrogenerated Fe2+ reacts with H2O2 and leads to the generation of (OH)-O-center dot, which is responsible for the higher COD removal. However, overdosage H2O2 will consume (OH)-O-center dot generated in the electro-Fenton process and lead to the low COD removal. The COD removal efficiency decreased with the increased pH. The concentration of Fe2+ ions was dependent on the solution pH, H2O2 dosage and current density. The changes of organic characteristics in coagulation and oxidation process were differenced and evaluated using gel permeation chromatography, fluorescence excitation-emission scans and Fourier transform infrared spectroscopy. The fraction of the wastewater with aromatic structure and large molecular weight was decomposed into aliphatic structure and small molecular weight fraction in the electro-Fenton process. (C) 2012 Published by Elsevier Ltd. |
WOS记录号 | WOS:000302505800008 |
公开日期 | 2014-11-04 |
内容类型 | 期刊论文 |
源URL | [http://ir.rcees.ac.cn/handle/311016/7829] ![]() |
专题 | 生态环境研究中心_环境水质学国家重点实验室 |
推荐引用方式 GB/T 7714 | Zhao, Xu,Zhang, Baofeng,Liu, Huijuan,et al. Transformation characteristics of refractory pollutants in plugboard wastewater by an optimal electrocoagulation and electro-Fenton process[J]. CHEMOSPHERE,2012,87(6):631-636. |
APA | Zhao, Xu,Zhang, Baofeng,Liu, Huijuan,Chen, Fayuan,Li, Angzhen,&Qu, Jiuhui.(2012).Transformation characteristics of refractory pollutants in plugboard wastewater by an optimal electrocoagulation and electro-Fenton process.CHEMOSPHERE,87(6),631-636. |
MLA | Zhao, Xu,et al."Transformation characteristics of refractory pollutants in plugboard wastewater by an optimal electrocoagulation and electro-Fenton process".CHEMOSPHERE 87.6(2012):631-636. |
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