title: Low flux submerged membrane bioreactor treating high strength leachate from a solid waste transfer station.
abstract: A submerged membrane bioreactor was employed to treat high strength leachate generating from a solid waste transfer station. The reactor was operated at low fluxes of 1.2; 2.4; 3.8 and 5.1 LMH. The organic loading rate (OLR) ranged from 2 to 10 kg COD/m(3)day. Results show that 97% removal efficiency of COD at flux of 2.4 LMH. The highest removal of ammonia nitrogen and total nitrogen was 92.0 ± 1.5% and 88.0 ± 2.0% respectively at flux of 3.8 LMH. Fouling rates were observed to be 0.075; 0.121; 3.186 and 6.374 kPa/day for the fluxes of 1.2; 2.4; 3.8 and 5.1 LMH, respectively. Membrane fouled very slowly at low flux operation. The sustainable flux was identified to be less than 2.4 LMH for treating high strength leachate. It reveals less fouling was able to achieve for high strength wastewater by reducing the membrane flux.
authors.affiliation: Faculty of Environment, Ho Chi Minh City University of Technology, 268 Ly Thuong Kiet Str., District 10, Ho Chi Minh City, Viet Nam. bxthanh@hcmut.edu.vn
authors.forename: Bui Xuan
authors.initials: BX
authors.lastname: Thanh
authors.forename: Nguyen Phuoc
authors.initials: NP
authors.lastname: Dan
authors.forename: Chettiyappan
authors.initials: C
authors.lastname: Visvanathan
mesh_terms: D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors; D008567:Membranes, Artificial; D009584:Nitrogen / Q000032:analysis / Q000737:chemistry; D012037:Refuse Disposal / Q000379:methods; D012722:Sewage / Q000737:chemistry; D062065:Wastewater / Q000737:chemistry; D014873:Water Pollutants / Q000032:analysis* / Q000737:chemistry; D018508:Water Purification / Q000379:methods*
chemical_list: D008567:Membranes, Artificial; D009584:Nitrogen; D012722:Sewage; D062065:Wastewater; D014873:Water Pollutants