Model Analysis of Separation Performance of Commercial Nanofiltration Membranes Improved by Tannic Acid
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概要
- 論文の詳細を見る
Three types of membranes have been studied: ES10 (reverse osmosis membrane), LES90 (nanofiltration membrane), and improved LES90 for the analysis of the improvement of membranes by tannic acid. We assumed that ES10 had a uniform structure without any pores, LES90 had a normal section and a defective section, and that in improved LES90, most defects were improved by tannic acid. We calculated the membrane transport parameters for a normal section using a best-fit method based on the Spiegler–Kedem equation, and for a defective section using the Steric Hindrance–Pore model for neutral solutes and the Teorell–Meyer–Sievers model for sodium chloride. We carried out various permeation experiments using four types of neutral solutes: ethanol, 2-propanol, t-butanol, and glucose, as well as sodium chloride. We analyzed the relationship between the volumetric flux and real rejection, and compared the experimental results with the model calculations. There was good agreement between the experiments and calculations.
- 社団法人 化学工学会の論文
- 2009-03-01
著者
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Sato Yuya
R&d Center Organo Corp.
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NAKAO Shin-ichi
Department of Chemical System Engineering, Faculty of Engineering, The University of Tokyo
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Nakao Shin-ichi
Department Of Chemical System Engineering Graduate School Of Engineering The University Of Tokyo
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Nakao Shin-ichi
Department Of Chemical Engineering Faculty Of Engineering University Of Tokyo
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TSURU Toshinori
Department of Chemical System Engineering, The University of Tokyo
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Tsuru Toshinori
Department Of Chemical Engineering Graduate School Of Engineering Hiroshima University
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SATO Yuya
R&D Center, Organo Corp.
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Nakao Shin-ichi
Department Of Anesthesia Kyoto University Hospital
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