三维电极处理含盐污水的试验研究

Treatment of Saline Sewage by Three-Dimensional Electrode

目前,海水直接利用后排放的污水及其他工业中排放的含盐污水的处理成为人们普遍关注的问题。本研究采用活性炭三维电极反应器对含盐污水的处理进行了试验研究,分析了电压、电解时间、初始pH值和绝缘粒子投加量等因素对水中污染物质的去除效果的影响,用CODCr的变化来表征。结果表明:三维电极反应器处理含盐污水工艺对污染物质的去除效果,在电压为12 V,电解时间60 min,pH值6～8,m(玻璃珠)∶m(活性炭)为1∶2条件下最适宜,其去除率可达80%以上。试验结果为进一步探讨含盐污水的高效处理技术提供了理论依据。

At present,it is concerned how to treat sewage produced by sea water direct utilization and saline sewage by the other industries.The treatment effect of saline sewage by three-dimensional electrode reactor filled with activated carbon was investigated in this paper.The effects of voltage,electrolysis time,the original pH value and the dosage of insulating particle on the removal efficiency were analyzed.Results showed that it was feasible to remove CODCr from saline sewage by three-dimensional electrode reactor filled with activated carbon.The removal of CODCr was above 80% when the voltage was 12 V,the electrolysis time was 60 min,pH value was controlled between 6—8,the mass ratio of activated carbon to glass bead was 2∶1.The experimental results can give reference for the further study on high-effect treatment of saline sewage in theory.