简易板式电极法去除地下水中As(Ⅲ)  

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

作　　者：梁峰[1,2] 邹国防 朱慧杰[1] 王红强[1] 张亚超[1] 王诺亚 何欢[2] LIANG Feng ZOU Guo-fang ZHU Hui-jie WANG Hong-qiang ZHANG Ya-chao WANG Nuo-ya HE Huan(The Town Advanced Environmental Protection Technology Engineering Laboratory of Henan Province, School of Municipal and Environmental Engineering, Henan University of Urban Construction, Pingdingshan, Henan 467036, China State Key Lab. Pollution Control d： Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China Pingdingshan Comprehensive Utilization and Environmental Protection Institute, Pingdingshan, Henan 467036, China)

机构地区：[1]河南城建学院市政与环境工程学院,城镇先进环保技术河南省工程实验室,河南平顶山467036 [2]南京大学环境学院,污染控制与资源化研究国家重点实验室,江苏南京210023 [3]平顶山市综合利用环境保护研究所,河南平顶山467036

出　　处：《过程工程学报》2016年第5期751-756,共6页The Chinese Journal of Process Engineering

基　　金：国家水体污染控制与治理科技重大专项基金资助项目(编号:2012ZX07529-003-002);污染控制与资源化研究国家重点实验室开放课题资助项目(编号:PCRRF13008);河南省科技攻关资助项目(编号:162102310389);河南省教育厅科学技术研究重点资助项目(编号:14A610012)

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 Na Cl为电解质,极板间距为3 cm、电压为2.5 V、60min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.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.

关 键 词：板式电极 As(Ⅲ) 电吸附 地下水 

分 类 号：X523[环境科学与工程—环境工程]