膜科学与技术

位置：首页 >> 期刊内容阅读

磺化杂萘联苯聚醚酮膜电渗析脱盐和浓缩

作者：邓聪，张守海，刘乾，王昭琪，陈宇宁，蹇锡高

单位：大连理工大学化工学院高分子材料系，辽宁省高性能树脂工程技术研究中心，辽宁省高分子科学与工程重点实验室，大连 116024

关键词：电渗析；磺化杂萘联苯聚醚酮; 离子交换膜；脱盐；浓缩

DOI号：

分类号： TQ028.8

出版年,卷(期):页码： 2020,40(4):99-106

摘要：

以磺化杂萘联苯聚芳醚酮离子交换膜为电渗析阳膜，考察初始溶液体积比、流速和操作电流等条件对低浓度溶液脱盐和高浓度溶液浓缩的效果。结果表明，浓淡室初始溶液体积比从1:1增大到3:1，对于低浓度溶液的脱盐效果以及能耗无明显影响；而高浓度溶液浓缩实验中，浓淡室初始溶液体积比从1:1调节为1:3，最终浓缩率可以从94%提高到201%。流速从20 mL/min提高到60 mL/min，对低浓度溶液的脱盐过程造成不利影响，105 min时的脱盐率从76%降低到71%；而高浓度溶液的最终浓缩率却从191%增加到223%。随着操作电流增加，低浓度溶液脱盐率增大和高浓度溶液浓缩效率提高，但会导致操作电压和能耗增大。

Sulfonated poly(phthalazinone ether ketone) membrane was used as cation exchange membrane for electrodialysis. The effects of volume ratio, flow rate and operation current on desalination of low concentration solution and concentration of high concentration solution were investigated. The results showed there were no significant influence on desalination of low concentration solution and energy consumption, when the volume ratio of the concentrate cell to the dilute cell increased from 1:1 to 3:1. However, the final concentration rate for high concentration solution increased from 94% to 201%, when the volume ratio of the concentrate cell to the dilute cell changed from 1:1 to 1:3. As the flow rate increased from 20 to 60 mL/min, the desalination rate of low concentration solution decreased from 76% to 71% at 105 min, while the final concentration of high concentrated solution increased from 191% to 223%. The desalination rate of low concentration solution and concentration rate of high concentration solution increased with an increase in operating current (0.1-0.18 A), but energy consumption would be increased.

基金项目：

辽宁省‘兴辽英才计划’项目（XLYC1802073）；中央高校基本科研业务费资助项目（DUT19ZD404）

作者简介：

第一作者：邓聪（1994-），男，广东云浮人，硕士研究生，从事电渗析用离子交换膜的研究. 通讯作者，E-mail：zhangshh@dlut.edu.cn，jian4616@dlut.edu.cn

参考文献：

[1]Nagarale R K, Gohil G S, Shahi V K. Recent developments on ion-exchange membranes and electro-membrane processes[J]. Adv Colloid Interface Sci, 2006, 119(2-3):97-130.
[2]刘颖, 王俐丹, 王建友.节能电渗析用于海水纳滤产水二级脱盐研究[J]. 膜科学与技术, 2018, 38(3): 97-103.
[3]Strathmann H, Grabowski A, Eigenberger G. Ion-Exchange Membranes in the Chemical Process Industry[J]. Ind Eng Chem Res, 2013, 52(31): 10364-10379.
[4]徐铜文.离子交换膜的制备与应用技术[M].北京：化学工业出版社出版，2008：82.
[5]李照阳, 李荣宗, 仲兆祥,等. 电渗析用于造纸制浆母液脱盐[J]. 膜科学与技术, 2019, 39(4):118-123.
[6]吴俊, 吴永会, 吴翠明. 电渗析和离子交换耦合过程对苏氨酸发酵液脱盐处理[J]. 膜科学与技术, 2018, 38(3):116-124.
[7]徐铜文. 离子交换膜的重大国家需求和创新研究[J]. 膜科学与技术, 2008, 28(5):1-10.
[8]Sata T. Ion exchange membrane: preparation, characterization, modification and application[M]// Cambridge: The Royal Society of Chemistry, 2004.
[9]Xu T. Ion exchange membranes: State of their development and perspective[J]. J Membr Sci, 2005, 263(1/2):1-29.
[10]王涛. 磺化聚芳醚酮膜的制备及其气体渗透性能[D]. 大连理工大学, 2015.
[11]Zhang S H, Zhang B G, Zhao G F, et al. Anion exchange membranes from brominated poly(aryl ether ketone) containing 3,5-dimethyl phthalazinone moieties for vanadium redox flow batteries[J]. J Mater Chem A, 2014, 2(9):3083-3091.
[12]Zhang H W, Zhu B K, Xu Y Y. Modified sulfonated poly(phthalazinone ether ketone) membranes with inorganic particles for potential applications in PEMFCs[J]. J Appl Polym Sci, 2006, 102(4):3972-3977.
[13]Liu Y, Pan Q, Wang Y, et al. In-situ crosslinking of anion exchange membrane bearing unsaturated moieties for electrodialysis[J]. Sep Purif Technol, 2015, 156:226-233.
[14]Pan Q, Hossain M M, Yang Z J, et al. One-pot solvent-free synthesis of cross-linked anion exchange membranes for electrodialysis[J]. J Membr Sci, 2016, 515:115-124.
[15]Jiang C, Wang Y, Xu T. An excellent method to produce morpholine by bipolar membrane electrodialysis[J]. Sep Purif Technol, 2013, 115:100-106.
[16]蒋晨啸.以电渗析为基础的传质新理论和新工艺研究[D]. 中国科学技术大学，2016.
[17]Zhang W J, Ma J, Wang P P, et al. Investigations on the interfacial capacitance and the diffusion boundary layer thickness of ion exchange membrane using electrochemical impedance spectroscopy[J]. J Membr Sci, 2016, 502:37-47.
[18]Choi J H, Park J S, Moon S H. Direct measurement of concentration distribution within the boundary layer of an ion-exchange membrane[J]. J Colloid Interface Sci, 2002, 251(2):311-317.
[19]Jiang C, Wang Y, Zhang Z, et al. Electrodialysis of concentrated brine from RO plant to produce coarse salt and freshwater[J]. J Membr Sci, 2014, 450:323-330.
[20]Zhang W, Miao M, Pan J, et al. Separation of divalent ions from seawater concentrate to enhance the purity of coarse salt by electrodialysis with monovalent-selective membranes[J]. Desalination, 2017, 411:28-37.
[21]Strathmann H. Electrodialysis, a mature technology with a multitude of new applications[J]. Desalination, 2010, 264(3): 268-288.

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