膜科学与技术

位置：首页 >> 期刊内容阅读

三醋酸纤维素正渗透膜用于大豆低聚糖浓缩的研究

作者：肖维溢，朵雪琴，王铎

单位：中国海洋大学化学化工学院，山东青岛，266100

关键词：正渗透膜；三醋酸纤维素；大豆低聚糖；浓缩；膜污染

DOI号：

分类号： TQ028.8

出版年,卷(期):页码： 2014,34(6):84-88

摘要：

正渗透（FO）过程是近些年发展起来的一种新型渗透驱动膜分离过程，它具有低能耗、高分离、低膜污染、常温常压下运行等优点，使其在诸多领域，特别在浓缩领域中有着很好的应用前景。本文通过相转化法制备三醋酸纤维素（CTA）正渗透膜，采用此正渗透膜对大豆低聚糖进行了浓缩，并研究了浓缩过程中膜的污染及清洗。结果表明，所制备CTA正渗透膜以去离子水为原料液，0.1mol/LNaCl为汲取液时的水通量为13.6Lm-2h-1，对NaCl的截留率为94-99%。
在用于浓缩大豆低聚糖的过程中，累计浓缩150min，膜水通量由12.0 Lm-2h-1降低到5.9Lm-2h-1，总可溶物从1.0°Brix上升到8.0°Brix。在浓缩过程中正渗透膜表现出污染轻，易清洗等优点。

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.

基金项目：

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)。

作者简介：

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。

参考文献：

[1] 刘蕾蕾，王铎，汪锰，高从堦. 三醋酸纤维素正渗透膜制备过程中影响因素的研究[J]. 膜科学与技术，2011，31(1):1-3
[2] Wanling Tang, How Yong Ng. Concentration of brine by forward osmosis: Performance and influence of membrane structure [J]. Desalination，2008，(224): 143–153
[3] Holloway R W, Childress A E, Dennett K E. et al. Forward osmosis for concentration of anaerobic digester centrate[J]. Water research，2001，41:4005-4014
[4] Beaudry E G, Herron J R. Direct osmosis for concentrating waste water[A]. Proceedings of the 27th International Conference on Environmental Systems[C]，Lake Tahoe，1997(7):14-17
[5]Petrotos K B, Lazarides H N. Osmotic concentration of liquid foods[J]. Food Eng，2001， 49:201-206
[6]Wrolostad R E, McDaniel M R, Durst R W, et al. Composition and sensory characterization of red raspberry juice concentrated by direct osmosis or evaporation[J]. Food Sci，1993，58:633-637
[7] Su Y C, Lin L A. Water powered micro drug delivery system[J]. Microelecromech Syst.，2004，13:75-82
[8] Loeb S. Energy production at the Dead Sea by pressure retarded osmosis: challenge or chimera[J]. Desalination，1998，120:247-262
[9] Loeb S, Hassen F V, Shahaf D. Production of energy from concent rated brines by pressure retarded osmosisⅡ: Experimental results and projected energy costs[J]. Membr Sci，1976，(1):249-269
[10] Cath T Y, Childress A E, Elimelech M. Forward osmosis: principles, applications, and recent develments[J]. Membr Sci，2006，281:70-87
[11]高从堦，郑根江，汪锰，等. 正渗透-水纯化和脱盐的新途径[J]. 水处理技术，2008，34(2):1-4
[12] Liu L L, Wang M, Wand D, et al. Current patents of forward osmosis membrane process[J]. Recent Patents on Chemical Engineering，2009，2(1):1-7
[13] B. Van Der Bruggen, L. Lejon and C. Vandecasteele. Reuse, treatment, and discharge of the concentrate of pressure-driven membrane processes [J]. Environ. Sci. Technol.，2003: 3733–3738
[14] Voltaire Sant’Anna, Membrane concentration of liquid foods by forward osmosis: Process and quality view[J]. Journal of Food Engineering，2012，111(3): 483-489
[15] 薛新顺，罗发兴，黄强. 大豆低聚糖分离纯化研究[J]. 农产品加工·学刊，2005，30(1):1-3
[16] 宋伟，谢丽娟，费英敏，等. “双歧”豆奶饮料的研制[J]. 食品科技，2001，(3):56-57
[17] 王炳南. 用膜集成技术分离大豆低聚糖. 水处理技术，2005，31:1-3
[18] K.L. Lee, R.W. Baker, H.K. Lonsdale. Membranes for power generation by pressure retarded osmosis[J]. Journal of Membrane Science，1981，8:141-171

服务与反馈：

【文章下载】【加入收藏】

《膜科学与技术》编辑部地址：北京市朝阳区北三环东路19号蓝星大厦邮政编码：100029 电话：010-64426130/64433466 传真：010-80485372邮箱：mkxyjs@163.com