분말활성탄-멤브레인 시스템을 이용한 지하수중의 VOCs 처리
Application of Powdered Activated Carbon-Membrane System for Treating Groundwater Contaminated with Volatile Organic Compounds
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The overall goal of this study was to demonstrate the feasibility of using a hybrid use of PAC-UF (MF) processes for treating groundwater contaminated with TCE and PCE. Specifically, the objectives of the study were to determine how PAC addition affects the fouling on UF (MF) membrane depending on the membrane material used and to evaluate the optimum operational conditions for a compact PAC-UF process to effectively remove TCE and PCE in groundwater. The flux decline rate was lower for the PAC-UF (MF) process than for membrane only process. PAC reduced the flux decline by a scouring effect on the membrane surface, resulting in a reduction in the thickness of the cake layer deposited on the membrane, and the PAC on the membrane surface adsorbed more TCE and PCE. PAC itself did not cause the fouling of UF (MF) membrane regardless of membrane material. PAC-UF (MF) process enhanced the removal efficiency of TCE and PCE comparing to the PAC adsorption only. Finally, applying PAC before membrane filtration showed not only improving the removal of TCE and PCE, but also reducing membrane fouling.
Abstract
The overall goal of this study was to demonstrate the feasibility of using a hybrid use of PAC-UF (MF) processes for treating groundwater contaminated with TCE and PCE. Specifically, the objectives of the study were to determine how PAC addition affects the fouling on UF (MF) membrane depending on the membrane material used and to evaluate the optimum operational conditions for a compact PAC-UF process to effectively remove TCE and PCE in groundwater. The flux decline rate was lower for the PAC-UF (MF) process than for membrane only process. PAC reduced the flux decline by a scouring effect on the membrane surface, resulting in a reduction in the thickness of the cake layer deposited on the membrane, and the PAC on the membrane surface adsorbed more TCE and PCE. PAC itself did not cause the fouling of UF (MF) membrane regardless of membrane material. PAC-UF (MF) process enhanced the removal efficiency of TCE and PCE comparing to the PAC adsorption only. Finally, applying PAC before membrane filtration showed not only improving the removal of TCE and PCE, but also reducing membrane fouling.
참고문헌 (9)
- Carroll T, "The fouling of microfiltration by nom after coagulation treatment", Wat. Res, 34(11), pp.2861~2868 (2000)
- Ensley, B. D, "biochemical diversity of trichloroethylene metabolism", Annu. Rev. Microbiol, 45, pp.283~299 (1991)
- Lindau, J, "The influence of a low-molecular hydrophobic solute on the flux of polysulphone ultrafiltration membranes with different cut-off", J. membrane Sci, 106, pp.9~16 (1995)
- Sontheimer, H, "Verff, desereichs fr Univ. Karlsruhe, FRG", ~ (1967)
- Van, G. G, "Development of a combined ultrafiltration and carbon adsorption system for wastewater reuse and priority pollutant removal", Environmental progress, 5(3), pp.167~170 (1986)
- Westrick, J. J., "The groundwater supply survey", J. AWWA, 76(5), pp.52~59 (1984)
- 신항식, "고급산화법을 이용한 trichloroethylene 함유 폐수의 처리(I)", 대한환경공학회지, 17(11) (1995)
- 정연규, "이상연속식 반응조를 이용한 TCE의 생물학적 전환에 관한 연구", 대한토목학회지, 20(3), pp.411~419 (2000)
- 환경부, "테트라클로로에틸렌 및 트리클로로에틸렌에 대한 관리기준", 환경부 고시 2000-63호, ~ (2000)