粉煤灰去除污水中COD的实验研究  

EXPERIMENTAL RESEARCH ON REMOVAL OF COD FROM SEWAGE WITH FLY ASH

作　　者：胡立峰[1] 郑海亮[1] 成春奇[1] 

机构地区：[1]安徽理工大学资源与环境工程系,安徽淮南232001

出　　处：《能源环境保护》2006年第3期30-32,共3页Energy Environmental Protection

摘　　要：对用粉煤灰处理污水中的COD进行了实验研究。探讨了接触时间、污水酸度、粉煤灰用量、粉煤灰粒径等因素对处理效果的影响。结果表明:粉煤灰与污水的最佳接触时间为5 h;粉煤灰的粒径和污水的酸度对处理效果影响不大;灰水比1∶10时,去除率就可达到90%以上,并且粉煤灰对COD的吸附更符合Freundlic模型。The treatment of COD fi＇om sewage with fly ash was experimentally investigated. The effect of the contacting time, the pH of sewage, the amount and diameter of fly ash was studied. The results showed： the optimal contacting time of fly ash and sewage was 5 hours; the effect of the diameter of fly ash and the pH of sewage was little; the rate of COD reduction was more than 90%, when the rate of fly ash and sewage was 1 ： 10; the adsorption of COD to fly ash was more accorded with Freundlic model.

关 键 词：粉煤灰 COD 污水处理 

分 类 号：X703[环境科学与工程—环境工程]