MBR处理城市垃圾渗滤液中污泥特性  

Study on characteristics of sludge in treatment of municipal landfill leachate using MBR

作　　者：崔喜勤[1] 林君锋[1] 申欢[2] 金奇庭[2] 

机构地区：[1]福建农林大学资源与环境学院,福建福州350002 [2]西安建筑科技大学环境与市政工程学院,陕西西安710055

出　　处：《福建农林大学学报（自然科学版）》2010年第5期542-547,共6页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：陕西省教育厅专项科研计划项目(02JK136);西安市工业科技攻关计划项目(GG200275)

摘　　要：采用膜生物反应器(MBR)处理城市垃圾渗滤液,研究了在不排泥情况下反应器中污泥浓度、沉降性能、颗粒分布、活性和生物相的变化情况.结果表明,稳定状态的污泥浓度随容积负荷的增加而升高,本试验中反应器污泥浓度最高达10.4 g.L-1;大量胞外多聚物(ECP)等难降解物质随试验运行时间的延长而在反应器中积累,使污泥沉降性能变差、活性降低、颗粒粒径减小、生物相变差.The aim of study on a landfill leachate treatment was to determine the operation effect of membrane bioreactor（MBR） in the condition of no sludge discharge.The study was designed to investigate sludge concentration,sludge settleabilty,granular distribution,sludge activity and biological phase variation.The results indicated that the steady-state sludge concentration in MBR increased with volume load,and the highest sludge concentration reached 10.4 g·L-1.The slow-biodegradable substances such as extracellular polymers（ECP） were accumulated with the running time increased in MBR,which resulted in degradation of sludge settleability and sludge activity,reduction of sludge granular distribution,and biological phase becoming worse.

关 键 词：垃圾渗滤液 膜生物反应器(MBR) 污泥特性 

分 类 号：X52[环境科学与工程—环境工程]