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.

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.