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RISS 인기검색어
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- 저자 : 장성부 ( Jang Seong Bu ) (검색결과 2 건)
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도시하수 전처리를 위한 고속생물막 침전지의 특성에 관한 연구
강용태 ( Kang Yong Tae ),장성부 ( Jang Seong Bu ) 한국수처리학회 2003 한국수처리학회지 Vol.11 No.4
N/A It is not easy to find reasonable area for construction of wastewater treatment facility, and biological treatment such as a conventional activated sludge process can`t remove non-point source pollutant in initial rainfall, sufficiently. So if we use bio-physical treatment as pre-treatment and disinfection process, combined sewer overflows don`t cause significant pollution. First of all, we thought the site can be reduced by the reduction of HRT(hydraulic retention time). In this study, to reduce HRT of wastewater treatment facility, the rapid biofilter clarifier was cofigurated and its characteristics were analyzed according to the velocity of filtration and cycles of backwash. Specific characteristics of the rapid biofilter clarifier with 50 ㎥/d of volume were represented that Turbidity and SS removal rate was 30.2%, 30.9% respectively, and that of BOD and COD was 22.0%, 21.0% without regard to change of quality of raw water. By comparing the rapid biofilter clarifier and sedimentation of conventional activated sludge process with haveing 50㎥/㎡· of surface-loading rate and 2.0m of depth, we could know the rapid biofilter clarifier could reduce area of clarifier 11 times as much than that of conventional activated sludge process. Cycle of backwash was represented as 24, 18 and 24 hours when velocity of filtration was 222㎥/㎡·d, 333㎥/㎡·d and 555㎥/㎡·d, and BOD, SS biologically removed in the rapid biofilter clarifier was 342.80, 346.82 g/d, 258.08, 222.72 g/d, and 142.36, 136.52g/d respectively.
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강용태 ( Kang Yong Tae ),김태기 ( Kim Tae Gi ),조용현 ( Jo Yong Hyeon ),장성부 ( Jang Seong Bu ),장영일 ( Jang Yeong Il ) 한국수처리학회 2003 한국수처리학회지 Vol.11 No.3
N/A 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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