电吸附法处理模拟含镍废水的研究

采用电吸附法对模拟含镍废水进行处理。考察了电压、极板间距、pH值、原水的质量浓度及进水流量对Ni~(2+)去除率的影响,并在最优条件下进行循环电吸附/脱附实验。结果表明:在电压1.6V、极板间距0.8cm、pH值7.0、原水的质量浓度40mg/L及进水流量20mL/min的条件下,Ni~(2+)的去除率可以达到96.89%;经过5次电吸附循环后,Ni~(2+)的吸附性能依旧显著,Ni~(2+)的去除率保持在81.23%。

Study on Treatment of Simulated Wastewater Containing Nickel by Electrosorption Technique

Electrosorption technique was used to treat simulated wastewater containing nickel.The effects of voltage,plate spacing,pH value,initial mass concentration and influent flow rate on the removal rate of Ni2+ were investigated,and the cyclic electro adsorption/desorption experiment was carried out under optimum conditions.Results showed that,when voltage was 1.6 V,plate spacing was 0.8 cm,pH value was 7.0,initial mass concentration was 40 mg/L and influent flow rate was 20 mL/min,the removal rate of Ni2+ can reached 96.89％.After five electric absorption cycle,adsorption property of Ni2+ was still remarkable,and the removal rate of Ni2+ was maintained at 81.23％.