物化-生化组合工艺处理垃圾渗滤液  

Multi-Stage Treatment of Sanitary Landfill Leachate

作　　者：尚爱安[1] 徐美燕[2] 孙贤波[2] 曹国民[2] 赵庆祥[2] 

机构地区：[1]美商生化科技公司上海代表处,上海200336 [2]华东理工大学资源与环境工程学院,上海200237

出　　处：《华东理工大学学报（自然科学版）》2005年第6期756-759,782,共5页Journal of East China University of Science and Technology

基　　金：上海同济高廷耀环保科技发展基金会资助

摘　　要：针对垃圾渗滤液的氨氮、COD、难降解物质浓度高等特点,开发了磷酸铵镁沉淀法(MAP)脱氮-厌氧/好氧生物处理-混凝组合工艺处理垃圾渗滤液的新技术,研究了不同单元的作用及影响处理效果的因素。实验结果表明:高浓度垃圾渗滤液经组合工艺处理后,其COD、BOD5、NH3-N、E 260(紫外260 nm处吸光度,代表难降解有机物)的去除率分别为97.5%、99.2%、87.2%、75.3%。A multi-stage wastewater treatment process was developed for treating high strength sanitary landfill leachate. Magnesium ammonium phosphate was employed in the first stage precipitation treatment to remove a major portion of the ammonia nitrogen present in the leachate; low oxygen/aerobic biological treatment in mixed reactors was then performed to remove biodegradable organic pollutants ; coagulation and flocculation treatment was performed at the last to produce a dischargeable final effluent. In the test case, COD was reduced from 10 300 to 256 mg/L and that BOD was reduced from 3700 to 28mg /L.

关 键 词：垃圾渗滤液 磷酸铵镁沉淀法 生物处理 混凝 

分 类 号：X52[环境科学与工程—环境工程]