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실관막 모듈에서 Lix84에 의한 중금속 투과추출 제거
최대웅(Dai Woong Choi),신군섭(Kun Sub Shin) 한국환경보건학회 1999 한국환경보건학회지 Vol.25 No.1
Hollow fiber module contactor can be designed to provide a very high surface area per unit volume, which makes them very effective in comparison to conventional extraction equipment. Since the phases are separated by the membranes, the loading, flooding, and channeling constraints of conventional equipment are avoided. The optimum conditions for the change of H^+ concentration in heavy metal(Cu(II), Ni(II), Pb(II), Zn(II), Cd(II)) solution, the change of flow rate inside-outside hollow fiber membrane and the removal of heavy metal by the sort of extractant(Lix84-n-heptane, TOA-n-heptane, D2EHPA-n-heptane) were examined through perstraction of aqueous phase heavy metal from the hollow fiber module by organic extractant. Lix84 showed the best efficiency to Cu(II) extraction among a few kind of used extractant
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박동원,이성식,최대웅,신군섭 한국공업화학회 1998 응용화학 Vol.2 No.1
Extraction by hollow fibers are fast compared with conventional extractional equipment because of the large surface area per volume, and the feeds can be contacted at high speed and two flows are completely independent, so there no problems withlaoding, flooding and channeling. In this paper, it was investigated the flow rate of aqueous and organic solution by using the hollow fiber membrane. It is known that the mass transfer is done as the flow rate of aqueous phase increase. For the system with high distribution ratio, effect of the distribution ratio on mass transfer was weak in system in the hollow fiber membrane.
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