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A study on concentration of soybeanoligosaccharides by Cellulose triacetate FO membrane
Authors: Xiao Weiyi,Duo Xueqin,Wang Duo
Units: College of Chemistry and Chemical Engineering,Ocean University of China,Qingdao 266100,China
KeyWords: Forward osmosis membrane; cellulose triacetate; soybean oligosaccharides; concentration; membrane fouling
ClassificationCode:TQ028.8
year,volume(issue):pagination: 2014,34(6):84-88

Abstract:
As a new type of osmosis driven membrane separation process, Forward Osmosis (FO) developed rapidly in recent years. It has many advantages such as low power consumption, high separation, low membrane fouling, running under normal temperature and pressure and so on. So it has promising prospects in many fields especially in concentration. In this article, Cellulosetriacetate (CTA) FO membrane was prepared through phase inversion method and then it was use to concentrate soybeanoligosaccharidesandresearchtheprocess of concentrationofmembranefouling and cleaning.In the experiment, when deionized water is served as feed solution and NaCl as draw solution, thewater flux stabilizes 13.6Lm-2h-1. The membrane rejection of NaCl is 94-99%.
Inthe process ofconcentratingsoybean oligosaccharides, after concentrating for 150min, the flux reduces from 12.0Lm-2h-1to5.9Lm-2h-1and the totalsolublerises from1.0°Brixto8.0°Brix. FO membrane was shown that in theconcentrate process it presents some advantages including less population, easy to clean and so on.

Funds:
上海市科技攻关计划(11DZ1205201和1351102000)和江苏省科技工业支撑计划(BE2013031)。

AuthorIntro:
游文婷(1985-),女,上海人,华东理工大学硕博连读研究生,主要从事膜法水处理的研究工作。

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