正渗透原理及分离传质过程浅析

doi:10.3969/j.issn.0438-1157.2013.01.027

化工学报 ›› 2013, Vol. 64 ›› Issue (1): 252-260.DOI: 10.3969/j.issn.0438-1157.2013.01.027

正渗透原理及分离传质过程浅析

王亚琴^1,2, 徐铜文¹, 王焕庭³

1. 中国科学技术大学化学与材料科学学院功能膜实验室,安徽合肥 230026;
2. 安徽建筑工业学院材料与化学工程学院,安徽合肥 230022;
3. 蒙那士大学化工系,澳大利亚维多利亚 3800

收稿日期:2012-07-30 修回日期:2012-10-16 出版日期:2013-01-05 发布日期:2013-01-05
通讯作者: 徐铜文
作者简介:王亚琴(1977—),女,博士研究生。
基金资助:
国家自然科学基金项目(21128004)。

Forward osmosis membrane process and its mass transport mechanisms

WANG Yaqin^1,2, XU Tongwen¹, WANG Huanting³

1. Functional Membrane Laboratory, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, Anhui, China;
2. School of Materials and Chemical Engineering, Anhui University of Architecture, Hefei 230022, Anhui, China;
3. Department of Chemical Engineering, Monash University, Victoria 3800, Australia

Received:2012-07-30 Revised:2012-10-16 Online:2013-01-05 Published:2013-01-05
Supported by:
supported by the National Natural Science Foundation of China (21128004).

摘要/Abstract

摘要： 正渗透是一种新兴的膜分离技术,因其低能耗、抗污染、对污染物截留能力广等的潜力,在脱盐、废水处理、农业和电力等领域的应用前景备受瞩目。本文介绍了正渗透概念和原理,通过正渗透传递过程的现象学模型,对浓差极差极化与质量传递的关系作出分析,提出了强化正渗透传质过程的一些建议。

关键词: 正渗透, 渗透机理, 浓差极化, 质量传递

Abstract: Forward osmosis (FO) is an emerging technology that has attracted numerous attention for its potential applications in many areas, such as desalination, waste water treatment, agriculture,and power generation.FO has shown many advantages over reverse osmosis process in terms of low energy consumption, high rejection of a wide range of contaminants and lower fouling tendency.In this paper the concept and mechanism of FO are presented,and the calculation and determination of the osmotic pressure of solution are discussed.The relationship between concentration polarization and mass transport through the FO membrane on the phenomenological model is analyzed.Some strategies about the enhancement of mass transfer processes of FO operation are suggested.The opportunities and challenges exist side by side in the development of FO technology.

Key words: forward osmosis, osmosis mechanisms, concentration polarization, mass transport

中图分类号:

TQ0288

王亚琴, 徐铜文, 王焕庭. 正渗透原理及分离传质过程浅析[J]. 化工学报, 2013, 64(1): 252-260.

WANG Yaqin, XU Tongwen, WANG Huanting. Forward osmosis membrane process and its mass transport mechanisms[J]. CIESC Journal, 2013, 64(1): 252-260.

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正渗透原理及分离传质过程浅析

Forward osmosis membrane process and its mass transport mechanisms

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