Membrane Fouling Mechanism and its Control in the Treatment of Brackish Water with Reverse Osmosis Process

Author:

Wang Jian Bing1,Cheng Jun Yang1,Shi Ting1,Huang Qing1,He Xu Wen1

Affiliation:

1. China University of Mining and Technology

Abstract

Brackish water was treated with reverse osmosis process. The fouling mechanism of RO and its control method was studied. In the treatment of brackish water, the salt removal efficiency was above 95% and the effluent quality was up to the standard for drinking water quality (GB5749-2006). The SDI of the influent of RO was less than 5 after the raw water was pretreated by the combination of coagulation and sedimentation process and filtration process, which met the demand of the water quality of the RO influent. If ultrafiltration was added, the water quality of the pre-treatment was better. Coagulation and precipitation was not very effective for the removal of dissolved organic compounds, especially for the removal of organic compounds with molecular amount ranging from 1000 to 10000. The formation of RO membrane fouling can be divided into five stages, which is membrane surface coarseness stage by inorganic substrate, organic compounds adsorption stage, organism adhesion stage, microbial film development stage, and irreversible membrane block stage. The membrane fouling was effectively alleviated by the strategy of first alkali solution cleaning and then acid solution cleaning.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference18 articles.

1. X.M. Gao, R.L. Zhu: Technology of Water, Vol. 5(1999), pp.212-213.

2. C.C. Fu, F. M Mei, J.H. Ma, et al: Modern Mine, Vol. 479 (2009), pp.15-17.

3. F.Q. Li, J. Yang, X.W. He, et al: Journal of China Coal Society, Vol. 31(2006), pp.727-730.

4. P. Phillips, J. Bender, R. Simms, et al: Water Science and Technology, Vol. 31(1995), pp.161-170.

5. W.J. Tarutis Jr, R.F. Unz: Water Science and Technology, Vol. 32(1995), pp.187-192.

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3