新型悬浮填料滤池取代二沉池研究  

Pilot-scale Test on the Substitution of Novel High-efficient Suspended Medium Filter for Traditional Secondary Sedimentation Tank

作　　者：傅钢 董滨[2] 汪波[3] 周增炎[2] 高廷耀[2] 

机构地区：[1]上海环保<集团>有限公司,上海200092 [2]同济大学环境科学与工程学院,上海200092 [3]浙江大学建筑设计研究院,浙江杭州310027

出　　处：《中国给水排水》2005年第8期14-18,共5页China Water & Wastewater

基　　金：上海市重点学科建设资助项目

摘　　要：悬浮填料滤池是基于轻质悬浮填料技术而提出的新型高效固液分离技术,不但可以代替传统二沉池完成固液分离、污泥浓缩,而且具有占地省、出水表面无飘泥、出水水质好、冲洗简易方便以及一定的后续生物氧化作用等特点.在填料层高度为2.0 m、填料比表面积为285 m2/m3、表面负荷为1.98 m3/(m2·h)、污泥回流比为200%、滤池冲洗时间为2～3 h的工况下,滤池稳定期长达4～9 d,出水SS可达到<城镇污水处理厂污染物排放标准>(GB 18918-2002)的一级标准.Suspended medium filter is a novel high-efficient solid-liquid separation technology,which is presented based on the light-weight suspended medium technology. It can not only accomplish the solid-liquid separation and sludge thickening in replace of traditional secondary sedimentation tank,but also can be characterized by less land occupied, non-floating sludge on the surface, good effluent quality, and easy for washing, with the subsequent bio-oxidation. Under the working conditions of filter height 2.0m, specific surface area 285m^2/m^3, surface load 1.98m^3/（m^2·h）,sludge return ratio 200%, and filter washing time 2-3h, the stable operation phase of the filter is as long as 4-9 days and its effluent SS can achieve the I-class criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant （GB18918-2002）.

关 键 词：悬浮填料滤池 二沉池 固液分离 污泥浓缩 冲洗 

分 类 号：X703[环境科学与工程—环境工程]