막 결합형 연속회분식 반응조에서 침지형 막의 여과 특성 = Filtration Characteristics of Submerged Membrane in Membrane Coupled Sequencing Batch Reactor

다국어 초록 (Multilingual Abstract)

The effects of sequencing batch reactor (SM-SBR) process operation methods on membrane separation character and removal efficiency of organics and nutrients were investigated to minimize the membrane contamination and for simultaneous removal. The operation pressure of membrane separation was controlled to be maintained lower than critical permeable flux to minimize the membrane contamination which was defect of membrane bioreactor (MER) process. The contaminated was intermittently fed into membrane to extend operation period. When SM-SBR process operation cycle was 6~12 hr/cycle, the contamination of membrane was decreased and the operation period could be extended. Also the removal efficiencies of total nitrogen and total phosphorus were improved. The removal efficiency of organic matter was over 90% for all operation cycles. From these results, the SM-SBR process, use simultaneous removal of organics and nutrients, developed in this study can be used for small scale water recycle system.