Abstract:

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 COD_Cr 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 COD_Cr removal rate is more than 73%. The combined microelectrolysis-UASB process could remove most of the COD_Cr from landfill leachate and improve its biodegradability.

Key words: microelectrolysis, upflow anaerobic sludge bed, landfill leachate

摘要：

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。

关键词: 微电解, 上流式厌氧污泥床, 垃圾渗滤液

CLC Number: 

• X508