title: Optimization of an integrated sponge--granular activated carbon fluidized bed bioreactor as pretreatment to microfiltration in wastewater reuse.
abstract: A specific integrated fluidized bed bioreactor (iFBBR) was optimized in terms of organic loading rate (OLR), hydraulic retention time (HRT) and frequency of new sustainable flocculant (NSBF) addition for primary treated sewage effluent (PTSE) treatment. It was observed that iFBBR achieved the best performance with the operating conditions of 4 times/day NSBF addition, HRT of 90 min and OLR of 8.64 kg COD/day m(3). The removal efficiencies were found to be more than 93% of dissolved organic carbon (DOC), 61% of total nitrogen (T-N) and 60% of total phosphorus (T-P). iFBBR as pretreatment of submerged microfiltration (SMF) is successful in increasing the critical flux and reducing the membrane fouling. NSBF-iFBBR-SMF hybrid system led to very high organic removal efficiency with an average DOC removal of 97% from synthetic PTSE.
authors.affiliation: Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, FEIT, University of Technology Sydney, Broadway, NSW 2007, Australia.
authors.forename: W
authors.initials: W
authors.lastname: Xing
authors.forename: H H
authors.initials: HH
authors.lastname: Ngo
authors.forename: W S
authors.initials: WS
authors.lastname: Guo
authors.forename: A
authors.initials: A
authors.lastname: Listowski
authors.forename: P
authors.initials: P
authors.lastname: Cullum
mesh_terms: D019149:Bioreactors; D002244:Carbon / Q000737:chemistry*; D005374:Filtration / Q000379:methods*; D005427:Flocculation; D012722:Sewage; D014873:Water Pollutants / Q000302:isolation & purification
chemical_list: D012722:Sewage; D014873:Water Pollutants; D002244:Carbon