BAF反冲洗污泥的特性及絮凝效能  

Characteristics of Backwashing Sludge from Biological Aerated Filter (BAF) and Its Flocculation Efficiency

作　　者：邱立平[1] 马军[2] 张立昕[3] 王领全[4] 

机构地区：[1]哈尔滨工业大学环保科技公司博士后工作站,黑龙江哈尔滨150090 [2]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090 [3]济南大学土木建筑学院,山东济南250022 [4]天津大学环境科学与工程学院,天津300072

出　　处：《中国给水排水》2004年第9期1-4,共4页China Water & Wastewater

基　　金：国家自然科学基金资助项目(59825106); 济南大学博士启动资金资助项目(B0303); 济南大学科技基金资助项目(y0417)

摘　　要：　曝气生物滤池(BAF)反冲洗污泥的处理是影响其工程应用的技术难题之一,为此考察了BAF反冲洗污泥的沉降特性及絮凝性能,系统分析了其在生物—化学强化混凝处理生活污水时的效能及二次污泥的特性。研究结果表明,BAF反冲洗污泥具有较强的生物活性和絮凝活性,将其与金属盐混凝剂组合预处理生活污水时出水水质满足曝气生物滤池的进水水质要求,而且处理过程中产生的二次污泥具有较好的沉降及脱水性能。Backwashing sludge treatment from biological aerated filter (BAF) was one of the technical troubles that influence the engineering application,and then investigation was made on the settling and bio-flocculation performance of BAF backwashing sludge,and systematic analysis was carried out for its efficiency in bio-chemically enhanced coagulation treatment of domestic sewage and characteristics of secondary sludge.The results show that the backwashing sludge has great bioactivity and flocculation ability.When the combined backwashing sludge and metal salt coagulant is used for pretreatment of domestic sewage,the effluent quality is suitable for use as influent of BAF,and the secondary sludge produced in treatment process has good settling and dewatering performance.

关 键 词：曝气生物滤池 反冲洗污泥 生物絮凝 强化预处理 

分 类 号：X703.1[环境科学与工程—环境工程]