膜科学与技术

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Energy-saving Electrodialysis for Secondary desalination of Nanofiltration Produced Water

Authors： LIU Ying, WANG Lidan, WANG Jianyou

Units：

KeyWords： Electro dialysis, desalination, operation parameters, energy consumption

ClassificationCode：P747.3

year,volume(issue):pagination： 2018,38(3):97-103

Abstract：

For the high pressure and high energy consumption of Seawater reverse osmosis (SWRO) desalination technology, an energy-saving “NF/EDR” integrated membrane process for seawater desalination has been proposed in our study. This manuscript is the key study about the optimization of electrodialysis (ED) process. The feed water is the NF output with the conductivity of 8790 μS/cm and the adopted ED membranes are conventional heterogeneous ion exchange membranes. Taking the desalination rate and energy consumption as the main indicators, the ED operating parameters and process are comprehensively optimized. The results show that with the dilute stream flow of 150 L/h, concentrate stream flow of 120 L/h and the ED stack consisted of one stage with two passages, with the proportion of 27/23 in cell pairs, the desalination rate of ED process could be about 90% and the energy consumption was 0.98 KWh/(m3 produced water). Research shows that based on the integration between the energy-saving ED process and high desalination NF process, it is expected to achieve low-energy seawater desalination.

Funds：

国家重点研发计划 (2017YFC0404000，2016YFC0400707)

AuthorIntro：

刘颖（1988-），女，内蒙古赤峰市，南开大学博士后，研究方向：膜分离技术，E-mail:chifengliuying@126.com. 通讯作者，E-mail: wangjy72@nankai.edu.cn.

Reference：

[1] 周栋, 傅寅翼, 薛立新等. 采用高效纳滤-低压反渗透集成膜工艺的海水淡化研究[J]. 膜科学与技术, 2016, 36(3):62-69.
[2] 郑智颖, 李凤臣, 李倩等. 海水淡化技术应用研究及发展现状[J]. 科学通报, 2016, 61(21):2344-2370.
[3] 郑晓英, 王翔. 三种主流的海水淡化工艺[J]. 净水技术, 2016(6):111-115.
[4] 代磊, 张奇峰, 张所波. 海水淡化反渗透复合膜材料的研究进展[J]. 水处理技术, 2015, 41(10):53-58.
[5] 王世昌, 王志, 解利昕等. 海水淡化—共识与创新[J]. 水处理技术, 2015(10):13-16.
[6] 高从堦, 周勇, 刘立芬. 反渗透海水淡化技术现状和展望[J]. 海洋技术学报, 2016, 35(1):1-14.
[7] 薛喜东, 王建友, 刘红斌等. 太阳能中空纤维空气隙膜蒸馏海水淡化性能研究[J]. 膜科学与技术, 2016, 36(4):126-133.
[8] 徐国荣, 王生辉, 赵河立等. 海水淡化聚酰胺复合反渗透膜的发展趋势与展望[J]. 膜科学与技术，2015, 35(5):122-126.
[9] 徐建国, 尹华. 海水淡化反渗透膜技术的最新进展及其应用[J]. 膜科学与技术, 2014, 34(2):99-105.
[10] Grubert E A, Stillwell A S, Webber M E.Where does solar-aided seawater desalination make sense? A method for identifying sustainable sites[J]. Desalination, 2014, 339(339):10-17.
[11] 解利昕, 李凭力, 王世昌. 海水淡化技术现状及各种淡化方法评述[J]. 化工进展, 2003, 22(10):1081-1084.
[12] 唐娜, 刘家祺, 马敬环等. 热致相分离法制备膜蒸馏用聚丙烯平板微孔膜[J]. 化工学报, 2004, 55(10):125-129.
[13] Luo J, Wan Y. Desalination of effluents with highly concentrated salt by nanofiltration: From laboratory to pilot-plant[J]. Desalination, 2013, 315(2):91-99.
[14] Liu Y, Wang J. Energy-saving “NF/EDR” integrated membrane process for seawater desalination. Part II. The optimization of ED process[J]. Desalination, 2017, 422:142-152.
[15] 李卜义, 王建友. 浓海水处理及综合利用技术的新进展[J]. 化工进展, 2014, 33(11):3067-3074.
[16] 王建友, 王世昌, 傅学起. UF-EDI集成膜过程制备初级纯水[J]. 水处理技术, 2006, 32(9):48-51.
[17] Thampy S, Desale G R, Shahi V K, et al. Development of hybrid electrodialysis-reverse osmosis domestic desalination unit for high recovery of product water[J]. Desalination, 2011, 282(6):104-108.
[18] Sarkar S, Sengupta A K. A new hybrid ion exchange-nanofiltration (HIX-NF) separation process for energy-efficient desalination: Process concept and laboratory evaluation[J]. Journal of Membrane Science, 2008, 324(1-2):76-84.
[19] Liu Y, Wang J, Sun X. Energy-saving "NF/EDR" integrated membrane process for seawater desalination Part I. Seawater desalination by NF membrane with high desalination capacity[J]. Desalination, 2016, 397:165-173.
[20] 李志敏, 曾秋苑, 李淳等. MSF/RO/ED海水淡化技术研究[J]. 材料导报, 2012, 26(9):125-128.

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