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DOI : , Vol.11, No.3, 65 ~ 77, 2003
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| Title |
| A Study on Estimation of Application for Reuse Water of Biofilter Membrane Bioreacter System |
| 강용태 Kang Yong Tae , 김태기 Kim Tae Gi , 조용현 Jo Yong Hyeon , 장성부 Jang Seong Bu , 장영일 Jang Yeong Il |
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| Abstract |
| This study was performed to evaluate the BMB system which was composed by Rapid Biofilm Clarifier, Bioreactor and Membrane module. In Rapid Biofilm Clarifier replaced a conventional Primary Sedimentation, SS, BOD, COD were 40%. 20%, and 20% and turbidity, color were 30%and 10% respectively, which means that Rapid Biofilm Clarifier having HRT value of 5.2min can replace a conventional Primary Sedimentation of the HRT value of 2.0-2.5hr. The following summarizes the results obtained from Phase 1. The flux of the plate membrane and Hollow Fiber membrane was 120-140 L/㎡.hr.bar and 60-90 L/㎡.hr.bar. more quantity of water was passed at the Plate membrane than Hollow fiber membrane. And a Total resistance of Hollow fiber membrane was higher than plate membrane. The following is the results of performance on Phase 2. In Line Ⅰ with single-layer membrane frame, hydrauric retention time(HRT) was 11.6, 7.0, 4.6 hr. In Line II with multi-layer membrane frame, HRT was 5.8, 3.5, 2.3 hr. According to the test on Phase 2, SS was revealed 0㎎/L. COD 4.2㎎/L. BOD 4.7㎎/L, Turbidity 0.37NTU. Color 14.7unit and T. Coli. not detective in Line Ⅰ. In Line Ⅱ, SS 0㎎/L, COD 6.2㎎/L, BOD 5.4㎎/L, Turbidity 0.52 NTU, Color 15.1 unit and T. Coli. not detective. This means that Line Ⅰ , Ⅱ of BMB system can meet water quality standard of Water reuse system. Estimation of Application of BMB system was represented as follows. This system can meet standard of BOD(l0㎎/L) up to F/M ratio 0.236gBOD/gMLSS . day. BMB system with multi-layer membrane frame made flux increased by 2 times and air flow rates reduced by 28.5% lower than single-layer membrane frame. In view of the results so far achieved, BMB system is more economical than any other systems. |
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| Key Words |
| BMB system, Biofilter Membrane Bioreactor, Water reuse, Rapid Biofilm Clarifier, Plate Membrane, Hollow Fiber Membrane, Permeate Flux, Total Resistance, F/M ratio, Air/Liquid ratio |
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