摘要
用电动力修复方法对铬污染污泥进行了实验研究。实验选用重铬酸钾为污染物,配置初始浓度为1mg/g的污染泥样。主要研究了修复电流、修复时间对去除效率的影响,背景pH值的改变和阴极液pH值的控制对修复效率的影响。实验结果表明,去除率随修复电流和修复时间的增加而增加。在pH的控制中,以阴极液柠檬酸的中和效果最佳,去除率最高可达到90.49%。
The experimental study was done on electrokinetic remediation for chromium - polluted sludge. Potassium dichromate was chosen as the pollutant, and its initial concentration was 1 mg/g. The effects of applied current and operating time on removal efficiency were mainly studied, and the influences of pH changed at background and pH controlled at cathode on the remediation efficiency were also studied. The experiment results indicated that the removal efficiency can be improved as the applied current and operating time increased. The citrate had the best neutralization effects on the pH controlled, while its removal efficiency was up to 90. 49%.
出处
《广州化工》
CAS
2010年第4期98-100,共3页
GuangZhou Chemical Industry
关键词
电动修复
铬污染
污泥
electrokinetic remediation
chromium - pollution
sludge
