title: [A submerged dynamic membrane bioreactor for domestic wastewater treatment].
abstract: The dynamic membrane forming on the surface of 0.1 mm Dacron mesh was utilized instead of static membrane, e.g. hollow fiber membrane, to develop a submerged dynamic membrane bioreactor (DMBR). The DMBR had high quality effluents when treating domestic wastewater at HRT = 3.5 h. The dynamic membrane could work steadily at a pressure no more than several centimeters water head drop. The highest SS concentration in the effluents was 4.05 mg/L, whereas the measured SS concentrations were zero in most circumstances. At condition of MLSS = 7000-8000 mg/L, the effluent head drop was only 5.8 mm when flux = 14.9 L/(m2.h), and it had little change during a continuous run for 27 days. The dynamic membrane averagely removed 28.74% of COD and 36.9% of TOC in the supernatant of the mixed liquor. The DMBR could remove NH3-N more than 96% when DO in the mixed liquor was no less than 2-3 mg/L.
authors.affiliation: ESPC State Key Joint Laboratory, Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084.
authors.forename: Bin
authors.initials: B
authors.lastname: Fan
authors.forename: Xia
authors.initials: X
authors.lastname: Huang
authors.forename: Xianghua
authors.initials: X
authors.lastname: Wen
authors.forename: Yan
authors.initials: Y
authors.lastname: Yu
mesh_terms: D019149:Bioreactors; D005374:Filtration; D008567:Membranes, Artificial; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D008567:Membranes, Artificial