PFS预处理垃圾渗滤液回灌出水的混凝条件研究  

Study on the coagulation conditions for the pretreatment of recirculated leachate with PFS

作　　者：石岩[1,2] 余海晨[1] 郑先强[1] 许丹宇[1] 

机构地区：[1]天津市环境保护科学研究院,天津300191 [2]天津市联合环保工程设计有限公司,天津300191

出　　处：《工业水处理》2012年第10期47-50,共4页Industrial Water Treatment

摘　　要：研究了聚合硫酸铁(PFS)混凝预处理垃圾渗滤液回灌出水的混凝条件。通过正交实验确定的最佳混凝条件为:原水pH=5,投加PFS 180 mg/L,200 r/min搅拌2 min后投加助凝剂PAM 5 mg/L,100 r/min搅拌15 min,20r/min搅拌10 min后沉淀20 min。在此条件下,其对垃圾渗滤液中COD、TOC、BOD、色度、浊度的去除率分别达69.25%、62.44%、73.5%、71.82%和58.33%。PFS混凝预处理可有效减轻后续处理工艺的运行负荷,为垃圾渗滤液回灌出水的处理提供了参考。The coagulation condition s for the pretreatment of recirculated leachate with poly ferric sulfate （PFS） have been studied. PFS is used for pretreating the reclrculated [eachate. The factors which have influences on coagu- tions, the removing rates of COD, TOC, BOD, chroma and turbidity in landfill leachate are 69.25%, 62.44%, 73.5%, 71.82% and 58.33% ,respectively. The organic loading of subsequent treatment steps is effectively reduced through PFS coagulation. The research results can provide a reference for the pretreatment of recirculated leachate

关 键 词：聚合硫酸铁 混凝 垃圾渗滤液 回灌出水 

分 类 号：X703.1[环境科学与工程—环境工程]