吸附-混凝法预处理丙烯酸羟基酯废水研究  

Pretreatment of acrylate-hydroxy ester wastewater by adsorption - coagulation

作　　者：冯雪冬[1] 栾兆坤[1] 常青[2] 马艳飞[2] 

机构地区：[1]中国科学院生态环境研究中心国家重点环境水质学实验室,北京100085 [2]兰州交通大学环境科学与工程学院,甘肃兰州730070

出　　处：《工业水处理》2004年第9期17-18,31,共3页Industrial Water Treatment

基　　金：中国科学院知识创新工程资助项目;编号:KZCZ2-409

摘　　要：丙烯酸羟基酯产品工艺废水含有大量有毒重金属铜离子,具有COD高、pH值低、高浊、高色等特点.采用吸附-混凝联合处理工艺对丙烯酸羟基酯废水进行预处理研究.遴选了不同吸附剂、混凝剂,考察了投加量、pH值、吸附时间的影响.结果表明:pH值7.0～8.5,吸附剂采用粉煤灰,混凝剂采用PASC时,铜离子去除率在98.5%以上,COD去除率达到25%～35%,处理出水可进行生化处理.There is a great deal of Cu2+, COD, SS, which has high colourity and turbidity in the acrylate-hydroxy ester wastewater. The technology of adsorption coagulation is used to pretreat acrylate-hydroxy ester wastewater. Several adsorbents and coagulants are selected. The effects of dose of adsorbents and coagulants, pH, the time of adsorption are studied. The final experimental results show that the removal rate of copper ion could be 98.5% and the removal rate of CODCr could be 25%~35% when pH is in the range of 7.0 to 8.0, the adsorbent is fly ash, the coagulant is PASC.

关 键 词：吸附 混凝 羟基酯废水 预处理 

分 类 号：X703.1[环境科学与工程—环境工程]