TMBR+NF/RO组合工艺处理垃圾渗滤液的工程应用

采用TMBR+NF/RO组合工艺对湖北省宜昌市某垃圾卫生填埋场渗滤液进行处理,介绍了组合工艺的流程、特点、设备规格、技术参数。TMBR系统对可生化降解COD处理后,COD平均质量浓度为822 mg/L,平均去除率为95.8%,对NH_3-N平均去除率为94.9%;经过NF/RO出水的COD平均值为45 mg/L,NH_3-N均小于25mg/L,达到《生活垃圾填埋场污染控制标准》(GB 16889—2008)的排放标准。组合工艺处理成本为29.5元/m3。

Application of TMBR and NF/RO Combined Technology in Landfill Leachate Treatment

A combined process of TMBR and NF/RO is applied to treat leachate from a sanitary waste landfill site in Yichang ,Hubei province ,China .The technological process ,characteristics of the combination process ,equipment specifi-cations and technical parameters are introduced and the engineering experience of operating the TMBR and NF/RO combina-tion process and controlling landfill leachate are also summarized .The average concentration of COD is 822 mg/L after bio-chemical degradation of TMBR process ,the average removal rate is 95 .8% ,the average effluent COD is 45 mg/L after the NF/RO process and the average NH3 -N removal rate is 94 .9% .The concentration of NH3 -N is less than 25 mg/L after further separation and purification by the NF/RO process and it meets the landfill pollution control standard (GB 16889—2008 ) .The composite processing cost is 29 .5 yuan/m3 .