Landfill leachate production, quality and recirculation treatment in northeast China  

作　　者：ZHAO Qing-liang LIU Xue-yan QI Xu-dong LIU Zhi-gang 

机构地区：[1]School of Municipal and Environment Engineering, Harbin Institute of Technology, Harbin 150090, China

出　　处：《Journal of Environmental Sciences》2006年第4期625-628,共4页环境科学学报（英文版）

基　　金：TheKeyResearchProjectoftheCommissionofScienceandTechnology,HeilongjiangProvince,China(No.GB01C204-02)

摘　　要：Landfill leachate recirculation treatment process is a promising and economic way in northeast China due to the distinct season variation. In order to study the impact of recirculation on leachate production and its quality, two simulated sanitary landfill reactors, one with leachate recirculation and the other without, were placed outdoor in Harbin. The two-year experimental results indicated that leachate production was reduced by 86% with leachate recirculation and less or no facility for leachate treatment required. Recirculation could improve the leachate quality dramatically with lower COD, SS, NF4-N and higher pH level. Recirculation also could enhance waste degradation and stabilization and improve the efficiency of landfill. This study confirmed that leachate recirculation was a very feasible way for on-site landfill leachate treatment in cold areas.Landfill leachate recirculation treatment process is a promising and economic way in northeast China due to the distinct season variation. In order to study the impact of recirculation on leachate production and its quality, two simulated sanitary landfill reactors, one with leachate recirculation and the other without, were placed outdoor in Harbin. The two-year experimental results indicated that leachate production was reduced by 86% with leachate recirculation and less or no facility for leachate treatment required. Recirculation could improve the leachate quality dramatically with lower COD, SS, NF4-N and higher pH level. Recirculation also could enhance waste degradation and stabilization and improve the efficiency of landfill. This study confirmed that leachate recirculation was a very feasible way for on-site landfill leachate treatment in cold areas.

关 键 词：cold area sanitary landfill LEACHATE recirculation solid waste 

分 类 号：X705[环境科学与工程—环境工程]