两级SBR—PAC吸附混凝法处理垃圾渗滤液的研究

Research of treatment of landfill leachate through two-stage SBRs following absorption and coagulation with PAC.

垃圾渗滤液的处理一直是近几年污水处理领域的热点和难点问题。本文以杭州市某垃圾填埋场渗滤液 (CODCr15 0 0～ 4 5 0 0 mg/ L,NH4+ - N795～ 15 5 0 mg/ L,p H8.0～ 9.0 )作为研究对象 ,利用串联运行的回流式两级 SBR+活性炭吸附混凝工艺进行了实验研究 ,出水 CODCr<30 0 mg/ L、氨氮 <2 0mg/ L、色度 <2 0倍。

Treatment of landfill leachate is a focus of researcher's attention as well as a difficult problem in field of wastewater treatment. The landfill leachate(COD Cr 1500 4500 mg/L,NH 4 + N 795 1550 mg/L,pH 8.0 9.0) from a garbage landfill disposal plant in Hangzhou was handled by recycle and two stage SBR with absorption and coagulation of PAC as a post treatment. The effluent COD Cr concentration was less than 300 mg/L and NH 4 + N concentration was less than 20 mg/L.