摘要
研究采用吹脱除氨氮作为封场后卫生填埋场渗滤液的预处理工序,以厌氧-缺氧-好氧生化工艺作为二级处理工艺,之后采用超滤作为深度处理。结果表明:在吹脱5h以上,厌氧、缺氧与好氧的水力停留时间分别控制在18、18、24h时,出水经过超滤处理,COD与氨氮的去除均能达到国家《生活垃圾填埋场污染控制标准》GB 16889-2008的要求。
In this study, ammonia nitrogen removal was used as the pretreatment process of sanitary landfill leachate after closure, anaerobic-anoxic-aerobic biochemical process was used as the secondary treatment process, and ultrafiltration was used as advanced treatment. The results show that when the hydraulic retention time of anaerobic, anoxic and aerobic is controlled at 18,18 and24 h respectively, the removal of COD and ammonia nitrogen in the effluent can meet the requirements of the Standard for Pollution Control on the Landfill Site of Municipal Solid Waste(GB 16889-2008) after ultrafiltration treatment.
出处
《科技创新与应用》
2020年第17期105-107,共3页
Technology Innovation and Application
关键词
封场后卫生填埋场
渗滤液
处理工艺
sanitary landfill after closure
leachate
treatment process
