二沉池不同径向分布活性污泥对脱氮除磷的影响  

Effect of Different Radial Distribution of Activated Sludge on Nitrogen and Phosphorus Removal in Secondary Settling Tank

作　　者：刘流 倪黄蕾 梁军 许健 陈昊 梁雪峰 刘俊 LIU Liu;NI Huang-lei;LIANG Jun;XU Jian;CHEN Hao;LIANG Xue-feng;LIU Jun(Zhejiang Industrial Design&Research Institute Co.Ltd.,Hangzhou 310051,China;Zhejiang Fuchun Ziguang Environmental Protection Co.Ltd.,Hangzhou 310013,China;Changzhou Dingheng Electromechanical Equipment Co.Ltd.,Changzhou 213000,China;Department of Civil Engineering,Tongji Zhejiang College,Jiaxing 314051,China)

机构地区：[1]浙江省工业设计研究院有限公司,浙江杭州310051 [2]浙江富春紫光环保股份有限公司,浙江杭州310013 [3]常州市鼎亨机电设备有限公司,江苏常州213000 [4]同济大学浙江学院土木工程系,浙江嘉兴314051

出　　处：《中国给水排水》2022年第15期104-108,共5页China Water & Wastewater

基　　金：污染控制与资源化研究国家重点实验室开放课题(PCRRF20007);嘉兴市公益研究计划项目(2021AY10080)。

摘　　要：以浦江某城镇污水处理厂二沉池不同径向分布活性污泥为研究对象,分析了污泥的沉降性能和有机质含量,并考察了其对脱氮除磷和SS去除效果的影响。结果表明,沿二沉池径向分布(由内向外)的污泥沉降性逐渐降低,有机质含量逐渐升高,微生物数量先增后减;径向中部活性污泥的脱氮除磷效果更好,SS去除率更高。The settling performance and organic matter content of different radially distributed activated sludge in the secondary settling tank of a municipal wastewater treatment plant in Pujiang were analyzed,and their effects on nitrogen,phosphorus and SS removal were investigated.Along the radial distribution(from inside to outside)of the secondary settling tank,sludge settleability gradually decreased,organic matter content gradually increased,and the number of microorganisms increased first and then decreased.The activated sludge at the middle of the radial direction had better nitrogen and phosphorus removal performance and higher SS removal efficiency.

关 键 词：二沉池 径向分布 活性污泥 脱氮除磷 沉降性能 

分 类 号：TU992[建筑科学—市政工程]