title: A specific pilot-scale membrane hybrid treatment system for municipal wastewater treatment.
abstract: A specifically designed pilot-scale hybrid wastewater treatment system integrating an innovative equalizing reactor (EQ), rotating hanging media bioreactor (RHMBR) and submerged flat sheet membrane bioreactor (SMBR) was evaluated for its effectiveness in practical, long-term, real-world applications. The pilot system was operated at a constant flux, but with different internal recycle flow rates (Q) over a long-term operating of 475 days. At 4 Q internal recycle flow rate, BOD5, CODCr, NH4(+)-N, T-N, T-P and TSS was highly removed with efficiencies up to 99.88 ± 0.05%, 95.01 ± 1.62%, 100%, 90.42 ± 2.43%, 73.44 ± 6.03%, and 99.93 ± 0.28%, respectively. Furthermore, the effluent quality was also superior in terms of turbidity (<1 NTU), color (<15 TCU) and taste (inoffensive). The results indicated that with providing only chemically cleaned-in-place (CIP) during the entire period of operation, the membrane could continuously maintain a constant permeate flux of 22.77 ± 2.19 L/m(2)h. In addition, the power consumption was also found to be reasonably low (0.92-1.62 k Wh/m(3)).
authors.affiliation: Department of Chemical Engineering, Dankook University, 448-701, South Korea; Ho Chi Minh City University of Natural Resources and Environment, Ho Chi Minh City, Viet Nam.
authors.forename: Dinh Duc
authors.initials: DD
authors.lastname: Nguyen
authors.affiliation: School of Civil and Environmental Engineering, University of Technology, Broadway, Sydney, NSW 2007, Australia.
authors.forename: Huu Hao
authors.initials: HH
authors.lastname: Ngo
authors.affiliation: Department of Chemical Engineering, Dankook University, 448-701, South Korea.
authors.forename: Sa Dong
authors.initials: SD
authors.lastname: Kim
authors.affiliation: Department of Chemical Engineering, Dankook University, 448-701, South Korea. Electronic address: chemyoon@unitel.co.kr.
authors.forename: Yong Soo
authors.initials: YS
authors.lastname: Yoon
mesh_terms: D001673:Biodegradation, Environmental; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors / Q000382:microbiology; D002947:Cities; D003365:Costs and Cost Analysis; D004560:Electricity; D004867:Equipment Design; D006863:Hydrogen-Ion Concentration; D008567:Membranes, Artificial; D009584:Nitrogen / Q000302:isolation & purification; D010100:Oxygen / Q000032:analysis; D010539:Permeability; D010758:Phosphorus / Q000302:isolation & purification; D010865:Pilot Projects; D011312:Pressure; D013696:Temperature; D013997:Time Factors; D062065:Wastewater / Q000737:chemistry* / Q000382:microbiology; D014874:Water Pollutants, Chemical / Q000302:isolation & purification; D018508:Water Purification / Q000191:economics / Q000379:methods*
chemical_list: D008567:Membranes, Artificial; D009584:Nitrogen; D010100:Oxygen; D010758:Phosphorus; D062065:Wastewater; D014874:Water Pollutants, Chemical
keywords: Internal recycling ratio; Membrane fouling; Municipal wastewater; Pilot-scale hybrid treatment system; Specific energy consumption