混凝-吸附法处理垃圾渗滤液的实验研究  

Research on treatment of landfill leachates by flocculation-adsorption

作　　者：张富韬[1] 方少明[2] 松全元[1] 

机构地区：[1]北京科技大学土木与环境工程学院 [2]郑州轻工业学院化学工程系,郑州450002

出　　处：《北京科技大学学报》2005年第1期21-23,113,共4页Journal of University of Science and Technology Beijing

基　　金：河南省教委资助项目(No.20016100002)

摘　　要：对混凝-吸附法预处理垃圾渗滤液进行了实验研究.采用聚合氯化铝作为混凝剂,最佳投药量为500mg/L;吸附剂采用自制的改性膨润土.结果表明,渗滤液中CODcr的去除率可达79％,氨氮的去除率达46％,重金属的去除率为53％-98％.Landfill leachate, whose main pollutants are organic matter, heavy metals and ammoniacal nitrogen, is a kind of poisonous, harmful and organic wastewater. The pretreatment of landfill leachate by flocculation-adsorption was investigated. Polyaluminium chloride (PAC) was used as the flocculant and its optimum dosage was 500 mg/L. The adsorbent was self-made modified bentonite. Experimental results showed that approximately 79% of CODcr and 46% of ammoniacal nitrogen were removed. As to heavy metals, the removal ratios were from 53% to 98% according to different kinds of landfill leachate.

关 键 词：渗滤液 预处理 聚合氯化铝 改性膨润土 

分 类 号：X799.3[环境科学与工程—环境工程]