文献类型：期刊文献

英文题名：Separation performance of multi-components solution by membrane technology in continual diafiltration mode

作者：Zhao, Liming[1];Zhao, Hefei[2];Phuongbinh Nguyen[1];Li, Aoran[1];Jiang, Lihua[1];Xia, Quanming[1];Rong, Yi[1,3];Qiu, Yongjun[1];Zhou, Jiachun[1]

机构：[1]E China Univ Sci & Technol, R&D Ctr Separat & Extract Technol Fermentat Ind, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China;[2]Shanghai Qiyu Biotech Co Ltd, Shanghai 200235, Peoples R China;[3]Washington State Univ, Sch Food Sci, Pullman, WA 99164 USA

年份：2013

卷号：322

起止页码：113

外文期刊名：DESALINATION

收录：;EI(收录号：20132616450577);WOS:【SCI-EXPANDED(收录号:WOS:000322431800013)】；

基金：This research was supported by The National Nature Science Foundation of China (No. 31101381/C200303). The authors also thank Miss Lei Zhu for language refining.

语种：英文

外文关键词：Diafiltration; Membrane; Retention; Soybean molasses

摘要：To investigate the membrane separation performance of multi-components solution throughout continuous volumetric diafiltration (CVD), sucrose and glucose were implemented as model solute. Two commercial nanofiltration (NF) membranes (QY-NF-1-SW with molecular weight cut-off [MWCO] of 150 Da and QY-NF-3-D with MWCO of 250 Da) were operated in batch recycling mode. Flux (J(v)), trans-membrane pressure (Delta P), concentrations in feed (C-f) and permeate (C-p) were collected, and the retentions (R) were calculated. Based on the Spiegler and Kedem (S-K) equation, a theoretical R model was established. The model was employed to establish the mass balance equations in a feed tank during CVD. A novel revised retention equation was established to simulate CVD of sucrose and glucose mixture solution. Further, the model was popularly applied in ultrafiltration (UF) of the multi-components solution-soybean molasses by a commercial membrane (QY-UF-1-G with MWCO of 1 kDa). It was predicted in theory the total retention of multi-components increased, since the concentration of low retention solute declined with diafiltration process time when the flux was insignificantly changed which was then demonstrated by the experiment. The results showed that the retention curve predicted by the model agreed well with the experiment, and the revised retention equation was well designed for industrial food fluids. (C) 2013 Elsevier B.V. All rights reserved.