Implementing Both Domestic Wastewater Reuse and Sludge Reduction by a Combination of Anaerobic Phase and Membrane bioreactor  

作　　者：何圣兵 薛罡 王欣泽 张振家 王宝贞 

机构地区：[1]School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240 [2]College of Environmental Science and Engineering, Donghua University, Shanghai 200051 [3]School of Municipal and Environmental Engineering, Harbin Instrtute of Technology, Harbin 150090

出　　处：《Journal of Donghua University(English Edition)》2005年第4期129-133,共5页东华大学学报（英文版）

基　　金：SponsoredbyFokYingTungEducationFoundation(No.94004),ShanghaiNaturalScienceFoundation(No.04ZR14010)andLaboratoryofWaterQualityScience&WaterEnvironmentRecoveryEngineeringofBeijing

摘　　要：The aim of the research was to obtain both an excellent effluent for reuse and a reduced sludge production simultaneously by a combination process of anaerobic phase and Membrane bioreactor （MBR） technology in treating domestic wastewater. During the experimental period of three months, excellent removals for COD, NH3-H, TN were obtained, and mean removals were 91.87%, 96.13%, and 69. 23%, respectively. Whereas, at first 20 days, the removal for TP was only about 15.87%. In the following days, about 30% of raw water was introduced into the anaerobic reactor to supply organics for denitrificatien and release of polyphosphate, then a significant improvement for TP removal was observed, and mean removal of TP increased to 76.35%. During the operational period, it was investigated that the permeate could meet the requirements of several water criteria for reuse except free chlorine, and a mean excess sludge yield coefficient of 0.137 g MLSS/g COD was obtained. Therefore, the predicted goals of permeate for reuse and excess sludge reduction could be both achieved after dosing a certain quantity of disinfectant into the permeate.The aim of the research was to obtain both an excellent effluent for reuse and a reduced sludge production simultaneously by a combination process of anaerobic phase and Membrane bioreactor（MBR） technology in treating domestic wastewater. During the experimental period of three months, excellent removals for COD, NH3-H, TN were obtained, and mean removals were 91.87%, 96.13%, and 69.23%, respectively. Whereas, at first 20 days, the removal for TP was only about 15.87%. In the following days, about 30% of raw water was introduced into the anaerobic reactor to supply organics for denitrification and release of polyphosphate, then a significant improvement for TP removal was observed, and mean removal of TP increased to 76.35%. During the operational period, it was investigated that the permeate could meet the requirements of several water criteria for reuse except free chlorine, and a mean excess sludge yield coefficient of 0.137 g MLSS/g COD was obtained. Therefore, the predicted goals of permeate for reuse and excess sludge reduction could be both achieved after dosing a certain quantity of disinfectant into the permeate.

关 键 词：anaerobic phase MBR sludge reduction wastewater reuse permeate. 

分 类 号：X799.3[环境科学与工程—环境工程]