title: A novel approach to treat combined domestic wastewater and excess sludge in MBR.
abstract: Domestic wastewater was treated by combined anaerobic biofilm-aerobic membrane bioreactor(MBR) process, and part biomass MBR was withdrawn to treat with ozone, then the ozonated sludge was returned to anaerobic inlet. In aerobic MBR, MISS and DO were controlled at 3000-3500 mg/L and 0.8 mg/L respectively. Comparing the experimental results of two stages, it was noticed that ozonation did not affect the removal efficiency for organics but had a significant influence on the removals of NH3-N and TN. During the ozonation period of two months, no excess sludge was wasted, and a zero sludge yield was obtained.
authors.affiliation: School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China. heshengbing@sina.com
authors.forename: Sheng-Bing
authors.initials: SB
authors.lastname: He
authors.forename: Bao-Zhen
authors.initials: BZ
authors.lastname: Wang
authors.forename: Lin
authors.initials: L
authors.lastname: Wang
authors.forename: Yi-Feng
authors.initials: YF
authors.lastname: Jiang
authors.forename: Li-Qiu
authors.initials: LQ
authors.lastname: Zhang
mesh_terms: D000693:Anaerobiosis; D001673:Biodegradation, Environmental; D018441:Biofilms; D019149:Bioreactors; D010126:Ozone / Q000737:chemistry*; D012722:Sewage / Q000032:analysis*; D018505:Waste Management / Q000191:economics / Q000295:instrumentation* / Q000379:methods*
chemical_list: D012722:Sewage; D010126:Ozone