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자료유형
학술대회자료
저자정보
Wang, Xiao-Lin (Department of Chemical Engineering, Tsinghua University) Gong, Yan (Department of Chemical Engineering, Tsinghua University) Yu, Li-Xin (Department of Chemical Engineering, Tsinghua University) Tang, Yu (Department of Chemical Engineering, Tsinghua University) Liu, De-Hua (Department of Chemical Engineering, Tsinghua University)
저널정보
한국막학회 한국막학회 총회 및 학술발표회 한국막학회 2004년도 Proceedings of the second conference of aseanian membrane society
발행연도
2004.1
수록면
19 - 24 (6page)

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ED method is employed to effectively remove the organic acid salts in actual PDO fermentation broth. The lower electrical potential is selected to avoid the serious membrane fouling so as to ensure a stable and durative desalination process. Under the selected operation conditions, about 90% of organic acids salts are removed from PDO fermentation broth successfully by ED process. To reduce the loss of PDO product due to the diffusion, the operation time should be considered carefully. And based on mass balance equation and irreversible thermodynamics approach, a mathematical model is developed to describe the desalination process of an aqueous solution containing neutral solute by ED method. While the influence of concentration polarization is reflected by decreasing the conductivity of membrane, the model is verified well to describe the ED processes under varied operation conditions. Through the model, ED process of actual PDO fermentation broth is simulated to get a suitable scope of initial concentration in concentrated compartment.

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