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| 电芬顿法处理重金属络合物Ni-EDTA的研究 | |
| 引用本文： | 邵天元,李新宝,张宝锋,张家兴,李国亭,赵旭. 电芬顿法处理重金属络合物Ni-EDTA的研究[J]. 环境科学学报, 2015, 35(3): 745-749 |
| 作者姓名： | 邵天元 李新宝 张宝锋 张家兴 李国亭 赵旭 |
| 作者单位： | 1. 华北水利水电大学环境与市政工程学院,郑州450011;中国科学院生态环境研究中心环境水质学实验室,北京100085 2. 华北水利水电大学环境与市政工程学院,郑州,450011 3. 中国科学院生态环境研究中心环境水质学实验室,北京,100085 4. 华北水利水电大学环境与市政工程学院,郑州450011;深圳大学化学与化工学院,深圳518060 |
| 基金项目： | 国家自然科学基金优秀青年基金项目(No.51222802,21377148) |
| 摘 要： | 本文首先研究了电絮凝与电芬顿对Ni-EDTA去除效率对比,结果发现电絮凝对Ni-EDTA去除效率较低.通过电化学阳极溶解产生Fe2+,外加H2O2反应的阳极电芬顿过程可有效去除Ni-EDTA.详细考察Ni-EDTA初始浓度、电流密度、p H值及H2O2投加量对Ni-EDTA去除率的影响.结果表明,电芬顿方法处理Ni-EDTA络合物其初始浓度越低,去除效果越好.反应最佳p H值为3.5,H2O2投加量在一定条件下存在最优值,而络合物的去除率随着电流密度的增加而提高.对Ni-EDTA去除过程进行了分析. |
| 关 键 词： | 电芬顿 电絮凝 重金属络合物 Ni-EDTA |
| 收稿时间： | 2014-08-26 |
| 修稿时间： | 2014-10-19 |
Removal of Ni-EDTA by Electro-Fenton process |
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| SHAO Tianyuan,LI Xinbao,ZHANG Baofeng,ZHANG Jiaxing,LI Guoting and ZHAO Xu. Removal of Ni-EDTA by Electro-Fenton process[J]. Acta Scientiae Circumstantiae, 2015, 35(3): 745-749 | |
| Authors: | SHAO Tianyuan LI Xinbao ZHANG Baofeng ZHANG Jiaxing LI Guoting ZHAO Xu |
| Affiliation: | 1. Institute of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011;2. Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;Institute of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011;Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;1. Institute of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011;2. College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen 518060;Institute of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011;Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085 |
| Abstract: | Treatment of Ni-EDTA complexes was performed by electro-coagulation and electro-Fenton Processes. The results indicated that Ni-EDTA was slightly removed by electro-coagulation process. However Ni-EDTA can be efficiently removed by electro-Fenton process with iron anode and the addition of H2O2. The effects of initial Ni-EDTA concentration, current density, pH value and different concentrations of H2O2 on the Ni-EDTA removal were investigated. The results indicated that removal of Ni-EDTA was favourable in pH 3.5 and the lower initial concentration of Ni-EDTA. The optimal H2O2 dosage existed, and the removal efficiency of Ni-EDTA increased with the current density. The removal process of Ni-EDTA was discussed. |
| Keywords: | electro-Fenton electro-coagulation heavy metal complexes Ni-EDTA |
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