电化学法处理含酚模拟废水的实验研究

An Experimental Research on Electrochemical Treatment of Phenol-Containing Simulated Waste Water

以金属铝为阳极,采用电化学方法处理含酚模拟废水,着重考察了溶液pH值,电压,电解时间,苯酚起始浓度等因素对去除效果的影响。结果表明,在电压20V,pH值为9.0的条件下,模拟废水(10mg·L^(-1))在60min内苯酚去除率达到96％,苯酚的去除可能是·OH、H_2O_2氧化,直接电化学氧化和电凝聚共同作用的结果。

Electrochemical treatment of phenol-containing wastewater with aluminium being used as anode is investigated. The influence of factors such as initial phenol concentration, applied voltage, initial value of PH, and electrolysis time on removal rate for phenol were examined, respectively, and the removal mechanism is also discussed. It is observed that the removal rate for phenol reached 96% within 60 min when applied voltage was 20v, value of PH was 8.0 and initial PH value of simulated waste water was 10 mg·L^(-1). The removal of phenol might result from the combined action including·OH and H_2O_2 oxidation, direct electrochemical oxidation and electro-coagulation.