title: Feasibility study of a cyclic anoxic/aerobic two-stage MBR for treating ABS resin manufacturing wastewater.
abstract: This study investigated the feasibility and the treatment efficiency of a cyclic anoxic/aerobic two-stage MBR for treating polymeric industrial wastewater. The anoxic/aerobic hybrid MBR was operated without sludge withdrawal except sampling during the study. The results showed that the highest COD organic loading rate of 8.7 kg COD/m(3) day from bioreactor was obtained at phase 3. The system achieved 97% BOD(5) and 89% COD removal. It also revealed that 93% of COD removal was contributed by bioreactor at phase 3 and the similar results happened to phases 1 and 2. The highest TN and TKN removals for each phase were 60, 74, 80% and 61, 74, 81%, respectively and limited by nitritation step. SEM images of nascent and fouled membranes were offered to evaluate the cleaning method. The system was operated for 174 days, resulting in high degradation rate, flexibility towards influent fluctuations and limited sludge production.
authors.affiliation: Department of Environmental Engineering and Science, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan. mcychang@mail.chna.edu.tw
authors.forename: Chia-Yuan
authors.initials: CY
authors.lastname: Chang
authors.forename: Kulchaya
authors.initials: K
authors.lastname: Tanong
authors.forename: Chart
authors.initials: C
authors.lastname: Chiemchaisri
authors.forename: Saravanamuthu
authors.initials: S
authors.lastname: Vigneswaran
mesh_terms: D000180:Acrylic Resins / Q000138:chemical synthesis*; D000332:Aerobiosis; D000693:Anaerobiosis; D001673:Biodegradation, Environmental; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors; D002070:Butadienes / Q000138:chemical synthesis*; D005240:Feasibility Studies; D007220:Industrial Waste / Q000032:analysis*; D008567:Membranes, Artificial; D009584:Nitrogen / Q000302:isolation & purification; D011137:Polystyrenes / Q000138:chemical synthesis*; D012722:Sewage / Q000737:chemistry; D014835:Volatilization; D014865:Waste Disposal, Fluid; D018508:Water Purification / Q000295:instrumentation* / Q000379:methods*
chemical_list: D000180:Acrylic Resins; D002070:Butadienes; D007220:Industrial Waste; D008567:Membranes, Artificial; D011137:Polystyrenes; D012722:Sewage; C024636:ABS resin; D009584:Nitrogen