微电解-UASB组合工艺处理城市垃圾渗滤液

摘要

The treatment of landfill leachate by microelectrolysis-UASB has been studied. The results show that microelectrolysis is a good and cheap pretreatment process, 56.3％ of CODG could be removed from landfill leachate,and B/C is improved from raw water 0.28 to 0.35. UASB could treat the effluent effectively after treated by microelectrolysis process, the CODcr removal rate is more than 73％. The combined microelectrolysis-UASB process could remove most of the CODcr from landfill leachate and improve its biodegradability.%研究了微电解和上流式厌氧污泥床(UASB)组合工艺处理城市垃圾渗滤液的效果.结果表明:微电解是一种理想的垃圾渗滤液预处理方法,其COD<,cr>去除率可达到56.3%,B/C由原水的0.28上升到0.35:UASB能够有效地处理微电解处理后的出水,COD<,cr>去除率能达73%以上.微电解和UASB组合工艺能去除城市垃圾渗滤液中的大部分COD<,cr>,并提高其可生化性.