title: Pilot scale study on a new membrane bioreactor hybrid system in municipal wastewater treatment.
abstract: A pilot scale membrane bioreactor hybrid system (MBR-HS) was evaluated for municipal wastewater treatment. This novel system comprised of a granular activated carbon-sponge fluidized bed bioreactor (GACS-FBBR) followed by a submerge membrane bioreactor (MBR) with the capacity of 2 L/min. The results indicated that the MBR-HS could effectively remove 90% DOC and 95% NH₄-N. PO₄-P removal efficiency was remained stable at about 70% throughout the experiment. Specific oxygen uptake rate (SOUR) of activated sludge increased from 0.72 to 2.21 mg O₂/g VSSh for the first 10 days and then followed by a steady stage until the end of experiment. Sludge volume index (SVI) was always below 50 mL/g, demonstrated an excellent settling properties of sludge. The system also showed an achievement in terms of low trans-membrane pressure (TMP) development rate. The TMP increasing rate was only 0.65 kPa/day, suggesting GACS-FBBR can be a promising pre-treatment for MBR.
authors.affiliation: School of Civil and Environmental Engineering, University of Technology Sydney, Broadway, NSW 2007, Australia.
authors.forename: Tien Thanh
authors.initials: TT
authors.lastname: Nguyen
authors.forename: Huu Hao
authors.initials: HH
authors.lastname: Ngo
authors.forename: Wenshan
authors.initials: W
authors.lastname: Guo
mesh_terms: D019149:Bioreactors; D002244:Carbon / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D008567:Membranes, Artificial; D010100:Oxygen / Q000378:metabolism; D010865:Pilot Projects; D012722:Sewage / Q000737:chemistry; D018508:Water Purification / Q000295:instrumentation / Q000379:methods*
chemical_list: D008567:Membranes, Artificial; D012722:Sewage; D002244:Carbon; D010100:Oxygen