Study on the Filtration Character of Membrane Bioreactor by Adding Coagulant

摘要：

When using membrane bioreactor for wastewater treatment,it is found that the addition of coagulant can improve the filtration character of the process.The study revealed that while the MLSS=600Omg/L and the Fe2(SO4)3 adding quantity is 100 mg/L,the membrane resistance reduces 34％,the flux increases about 1/3.Fe2(SO4)3 addition has little effect on the MBR effluent quality.Scanning Electron Microscope(SEM)analysis displays the adding of Fe2(SO4)3 can change the structure and the porosity of the fouling cake.The pores in the cake with Fe2(SO4)3 addition are bigger and irregular,and the cake structure is looser.The structure is of benefit to the flux enhancement.

关键词： membrane bioreactor flux coagulant membrane fouling

作者: SHUGUO ZHANG YI ZHAO

作者单位: North China Electric Power University,Baoding City,province Hebei 071003,P.R.China

会议类型: 国际会议

会议名称: 第二届国际造纸与环境学术会议(The Second International Papermaking & Environment Conference)

会议地点: 天津

会议语种:英文

页码: 1071-1074

在线出版日期: 2008-05-14（万方平台首次上网日期，不代表论文的发表时间）