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용질배제 특성곡선에 의한 한외여과 막의 세공크기 및 분포예측
Prediction of Pore Size and Distribution of Ultrafiltration Membrane by Solute Rejection Characteristic Curves
HWAHAK KONGHAK, April 1990, 28(2), 212-219(8), NONE
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Abstract
Polysulfone막(분획분자량;3,000)을 이용, 분자량이 다른 4종류 dextran용액의 한외여과 실험을 행하여 구한 용질배제를 특성곡선으로부터 확률분포의 개념으로 막 세공크기 및 분포를 예측하였다. 이 결과 용질배제 특성곡선은 대수 정규확률지상에서 직선관계를 나타내었으며, 세공크기 분포변수인 평균값(μ)과 표준편차(θ)는 조작조건 변화에 따른 농도분극 및 용질형태 변형의 영향을 받았다. 용질배제 특성고선으로부터 구한 polysulfone막의 평균 유효 세공반경은 14Å이엇으며, 세공반경 분포는 5-40Å범위이었다.
In this study polysulfone membrane(MWCO:3,000)was used and ultrafiltration experiment was car-ried out for 4 types of dextran solutions having different molecular weight to obtain the solute rejetion characteristic curve, from which the membrane pore size and the distribution could be predicted with the aid of the concept of prob-ability distribution. The result showed that the solute rejection characteristic curve had a linear relation on log-normal probability paper and the mean(μ) and the standard deviation(θ), which are the pore size distribution parameters, were in-fluenced by the concentration polarization and solute conformation according to the operating conditions. The apparent mean pore radius and the pore radius distribution obtained from the solute rejection characteristic curve were 14Å and in the range of 5-40Å respectively.
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Pappenheimer JR, Rankin EM, Borrero LM, Am. J. Physiol., 167, 13 (1951)
Tragardh G, Desalination, 53, 25 (1985)
Smolders CA, Vugteveen E, Material Science of Synthetic Membranes, Lloyd, D.R., Ed. ACS Symp. Series, No. 269, Washington D.C., 339 (1985)
Chan K, Matsumura T, Sourirajan S, Ind. Eng. Chem. Prod. Res. Dev., 21, 605 (1982)
Du Bois R, Stoupel E, Biophys. J., 16, 1427 (1976)
Goldsmith RL, Ind. Eng. Chem. Fundam., 10(1), 113 (1971)
Michaels AS, Sep. Sci. Technol., 15(6), 1305 (1980)
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Frigon RP, Leypoidt JK, Uyeji S, Henderson LW, Anal. Chem., 55, 1349 (1983)
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Nakao SI, Kimura S, Synthetic Membranes, Vol. II, Turbak, A.F., Ed., ACS Symp. Series, No. 154, Washington, D.C., 119 (1981)
