混凝对垃圾渗滤液中腐殖质的去除特性  

Removal characteristics of humus in landfill leachate by coagulation

作　　者：朱永强[1,2] 孙力平[1,2] 王少坡[1,2] 王爱琴[1,2] 

机构地区：[1]天津城市建设学院环境与市政工程系,天津300384 [2]天津城市建设学院天津市水质科学与技术重点实验室,天津300384

出　　处：《工业用水与废水》2011年第2期22-25,共4页Industrial Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项经费资助(2008ZX07209-006);天津市自然科学基金资助项目(10JCYBJC05300)

摘　　要：通过分别投加混凝剂聚合氯化铝(PAC)、聚合硫酸铁(PFS)和聚合氯化铝铁(PAFC)对垃圾渗滤液进行混凝沉淀处理,考察了3种混凝剂对渗滤液中TOC、CODCr和UV254的去除效果,并且根据单因素试验确定出PAC为最佳混凝剂,最佳投药量为6 g/L。对渗滤液腐殖质分离方法进行了简化,并对经3种混凝剂处理后水样内的腐殖酸(HA)和富里酸(FA)含量进行了测定,结果表明:PAC对HA的去除效果最好,而PFS对FA的去除效果略高于其它2种混凝剂。The landfill leachate was treated by the coagulation sedimentation with polyaluminium chloride（PAC）,polyferric sulfate（PFS） and poly aluminum ferric chloride（PAFC） added respectively.The effects of the said three kinds of coagulants on TOC,CODCr and UV254 removal were investigated;furthermore,the best coagulant and the optimal coagulant dosage were determined as PAC and 6 g/L respectively according to the single factor experiment.The method of humus separation was simplified,and the content of humic acids（HA） and fulvic acids（FA） in the water which had been coagulated by the said three kinds of coagulants were examed at the same time.The results showed that： the performance of PAC for HA removal was the best,while the efficiency of PFS for FA removal was slightly higher than that of the other two coagulants.

关 键 词：垃圾渗滤液 混凝 腐殖质 

分 类 号：X703.1[环境科学与工程—环境工程]