Treating domestic sewage by Integrated Inclined-Plate-Membrane bio-reactor

1st International Global on Renewable Energy and Development

Song, Li Ming^1 ; Wang, Zi^1 ; Chen, Lei^1 ; Zhong, Min^1 ; Dong, Zhan Feng^2

National Supervision and Inspection Center of Environmental Protection Equipment Quality (Jiangsu), Yixing Urban Supervision and Inspection Center of Product Quality and Food Safety, No 100, Keji Avenue, Yixing, Jiangsu Province

214205, China^1

Chinese Academy for Environmental Planning (CAEP), Beike Bldg. 10, Beijing

100012, China^2

关键词: Biological treatment;    Domestic sewage;    Effluent concentrations;    Membrane bioreactor;    Membrane separation;    Membrane surface;    Pollutant removal;    Wastewater treatment efficiencies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/100/1/012122/pdf
DOI  :  10.1088/1755-1315/100/1/012122

来源: IOP

【 摘 要 】

Membrane fouling shorten the service life of the membrane and increases aeration rate for membrane surface cleaning. Two membrane bio-reactors, one for working and another for comparing, were set up to evaluate the feasibility of alleviating membrane fouling and improving wastewater treatment efficiency by integrating inclined-plate precipitation and membrane separation. The result show that: (1) Inclined-plate in reactor had a good effect on pollutant removal of membrane bioreactor. The main role of inclined-plate is dividing reactor space and accelerating precipitation. (2) Working reactor have better performance in COD, TN and TP removal, which can attribute to that working reactor (integrated inclined-plate-Membrane bioreactor) takes both advantages of membrane separation and biological treatment. When influent COD, TP and TN concentration is 163-248 mg/L, 2.08-2.81 mg/L and 24.38-30.49 mg/L in working reactor, effluent concentration is 27-35 mg/L, 0.53-0.59 mg/L and 11.28-11.56 mg/L, respectively. (3) Membrane fouling was well alleviated in integrated inclined-plate-Membrane bioreactor, and membrane normal service time is significantly longer than that in comparing reactor, which can attribute to accelerating precipitation of inclined-plate. In summary, integrated inclined-plate-Membrane bioreactor is a promising technology to alleviating membrane fouling and improving wastewater treatment efficiency, having good performance and bright future in application.