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Articles : Approach From Physicochemical Aspects in Membrane Filtration
( Eiji Iritani ),( Yasuhito Mukai ) 한국화학공학회 1997 Korean Journal of Chemical Engineering Vol.14 No.5
In membrane filtration, solution environment factors such as pH and solvent density are important in controlling the filtration rate and the rejection of the particles and/or the macromolecules. The filtration rate and the rejection in membrane filtration have been investigated from physicochemical aspects. It was shown that the properties of the filter cake formed on the membrane surface play a vital role in determining the filtration rate in membrane filtration. It was clearly demonstrated that such filtration behaviors as the filtration rate and the rejection are highly dependent on the electrical nature of the particles and/or the macromolecules. Furthermore, it was shown that the solvent density ρ has a large effect on the steady filtration rate in upward ultrafiltration.
Deliquoring by Changing Filtrate Flow Pattern and Sudden Reduction in the Surface of Filter Cake
Cho, Jun-Hyung,Eun, Ju-Young,Eiji Iritani,Toshiro Murase 江原大學校 附設 環境硏究所 1995 環境硏究 Vol.12 No.-
본 논문은 불투수성 고무막을 설치한 수평판형 여과기를 이용하여 정압하에서 여과케익의 탈수법을 구하였으며 여과 종료 후에 여액의 흐름방향변화와 여과케익의 표면 급축소에 의해 케익내부의 액압 및 압축압력분포가 변화하여 그 결과 케익압밀이 발생하며 기계적 압착조작에 의해 얻어진 최종평균함수율과 거의 일치하는 결과를 얻었다. 또한 2차 압밀에 의한 탈수속도의 해석법을 제시하였다.