铁氧体对活性污泥法处理生活污水的强化作用  

Strengthening Effect of Ferrite Powder on Domestic Wastewater Treatment by Activated Sludge

作　　者：吴春笃[1] 李继容[1] 解清杰[1] 

机构地区：[1]江苏大学环境学院,江苏镇江212013

出　　处：《工业安全与环保》2012年第4期1-3,9,共4页Industrial Safety and Environmental Protection

基　　金：国家"十一五"重大水专项支助项目(2008ZX07317-001)

摘　　要：为了提高活性污泥法处理生活污水的效率,采用铁氧体与生物法相结合方式处理生活污水。在生物反应器中投加磁化后的铁氧体粉末,在一定条件下驯化活性污泥。通过试验,得出了铁氧体的最佳投加量为375 mg/L。同普通活性污泥法相比,投加了375 mg/L铁氧体粉末的活性污泥对生活污水中COD和NH3-N的去除率分别提高了4.7%和26.5%;在各自的最佳运行条件下,投加铁氧体后反应器的水力停留时间缩短1 h。In order to improve the treatment efficiency of activated sludge sewage, a new method combined ferrite and biedegradation is adopted to treat domestic sewage. Ferrite powder after magnetization is added into bioreactor to domesticate activated sludge under certain conditions. The result shows that the optimal dosing of ferrite is 375 mg/L. Compared with the ordinary activated sludge process, this new method by adding ferrite powder can make the removal rate of COD and NI-I3 -N in domestic sewage improve 4.7 % and 26.5 % respectively; under best operation conditions, the hydraulic retention time of ferrite reactor is shorted 1 h.

关 键 词：铁氧体 活性污泥法 水力停留时间 莫诺特方程 生活污水 

分 类 号：X703[环境科学与工程—环境工程]