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过程工程学报 ›› 2016, Vol. 16 ›› Issue (5): 751-756.DOI: 10.12034/j.issn.1009-606X.216131

• 反应与分离 • 上一篇    下一篇

简易板式电极法去除地下水中As(Ⅲ)的实验研究

梁峰1,2,邹国防3,朱慧杰1,王红强1,张亚超1,王诺亚1,何欢2   

  1. 1. 河南城建学院市政与环境工程学院
    2. 南京大学环境学院
    3. 平顶山市综合利用环境保护研究所
  • 收稿日期:2016-02-02 修回日期:2016-04-04 出版日期:2016-10-20 发布日期:2016-10-14
  • 通讯作者: 梁峰 liangfeng@hncj.edu.cn

Removal of As(III) from Ground Water by Plate Electrode Method

LIANG Feng 1,2,ZOU Guo-fang 3,ZHU Hui-jie 1,WANG Hong-qiang 1,ZHANG Ya-chao 1,WANG Nuo-ya 1,HE Huan 2   

  1. 1. School of Municipal and Environmental Engineering, Henan University of Urban Construction
    2. School of the Environment, Nanjing University
    3. Pingdingshan Comprehensive Utilization and Environmental Protection Institute
  • Received:2016-02-02 Revised:2016-04-04 Online:2016-10-20 Published:2016-10-14
  • Contact: LIANG Feng liangfeng@hncj.edu.cn

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摘要： 采用以石墨板为电极的简易极板电吸附法模拟去除地下水中的As(III)，考察了离子强度、初始浓度、极板间距和电压对As(III)去除效果的影响及电极的循环使用性能. 结果表明，以0.1 mol/L NaCl为电解质，极板间距为3 cm、电压为2.5 V、60 min时对1 mg/L As(III)的吸附率达99.4%，达到了国家饮用水卫生标准. 通过正负极反接脱附，电极在8次循环中对As(III)的吸附率为98.4%?99.2%，再生后电极仍具有很好的吸附性能.

关键词: 板式电极, As(III), 电吸附, 地下水

Abstract: The arsenite removal from the simulated groundwater was studied by the plate graphite electrode electric adsorption. We investigated that the effects of the ionic strength, the initial arsenite concentration, the distances between the two plate electrode, and the voltage on the arsenite removal efficiency. The experimental results showed the arsenite removal efficiency reached up to 99.4% by the graphite electrode when the ionic strength is 0.1 mol/L NaCl, the voltage is 2.5 V, the distances between the two plate electrode is 3 cm, the electric adsorption time is 60 min. The water quality after electric adsorption approximates national standard of drinking water. The arsenite removal was 98.4%?99.2% in the 8 cycles of electrosorption/electrodesorption of arsenic, furthermore, the graphite electrode showed the higher performance after the regeneration.

Key words: plate electrode, As(III), electrosorption, ground water

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