Monovalent anions removal by capacitive deionization integrated with monovalent anion permselective exchange membrane

PAN Jiefeng; ZHENG Yu; DING Jincheng; SHI Wenhui; SHEN Jiangnan; GAO Congjie

doi:10.11949/j.issn.0438-1157.20180149

您当前的位置：

首页 >

文章列表页 >

Monovalent anions removal by capacitive deionization integrated with monovalent anion permselective exchange membrane

更新时间：2025-12-10

- Monovalent anions removal by capacitive deionization integrated with monovalent anion permselective exchange membrane
- CIESC Journal Issue 8, Pages: 3502-3508(2018)
- 作者机构：
  
  1. 浙江工业大学海洋学院,浙江,杭州,310014
  2. 浙江工业大学膜分离与水科学技术中心,浙江,杭州,310014
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20180149
  CLC： 747+.99
- Online First：05 August 2018，
  
  Published：05 August 2018
- 稿件说明：
移动端阅览
PAN Jiefeng, ZHENG Yu, DING Jincheng, et al. Monovalent anions removal by capacitive deionization integrated with monovalent anion permselective exchange membrane[J]. CIESC Journal, 2018, (8): 3502-3508.
DOI：

PAN Jiefeng, ZHENG Yu, DING Jincheng, et al. Monovalent anions removal by capacitive deionization integrated with monovalent anion permselective exchange membrane[J]. CIESC Journal, 2018, (8): 3502-3508. DOI： 10.11949/j.issn.0438-1157.20180149.

摘要

将电容去离子技术（CDI）与单价阴离子选择性交换膜结合构建新型膜法电容去离子膜堆（PSMCDI），并探索其在单/多价阴离子分离中的应用。采用自制的测试装置，以Cl-/SO42-水溶液为模拟体系，并选择现有的两种商业化单价阴离子选择性交换膜（ASV和ACS）作为膜元件，系统地研究了各参数（PSMCDI种类、阴离子组成和浓度、pH、操作时间、电压和流速）对单价离子选择性的影响。结果表明，总阴离子去除量随着阴离子浓度的增加而增加，但是对于单价离子（Cl-）选择性降低。随着操作时间的增加，单价离子（Cl-）选择性也降低。对于ASV膜，在1.2 V的直流电压、10 min吸附时间和30 ml·min-1进料流速的条件下得到1.6的单价阴离子去除选择性。同时，在相同条件下，ACS膜的单价阴离子去除选择性为1.4。

Abstract

The objective of this study is to investigate the feasibility of applying capacitive deionization (CDI) integrated with a monovalent anion permselective exchange membrane (PSMCDI) to remove chloride selectivity from a solution of mixed chloride and sulfate ions. Two types of membranes (ASC and ASV) were evaluated for selectivity removal of monovalent and divalent anions. A variety of parameters (anion composition and concentration

operating time

voltage

and flow rate) were investigated to achieve a maximum selectivity. The selectivity for monovalent anions was evaluated by a lab-made MCDI with a model aqueous system (Cl-/SO42-). The results show that the removal amount of anions increased with increasing anion concentration

but the selectivity for monovalent anions (Cl-) decreased. The selectivity also decreased with operating time. For the ASV membrane

a monovalent anion selectivity of 1.6 was obtained under the conditions of 1.2 V operating voltage

10 min adsorption time and 30 ml·min-1 feed flow rate. The corresponding monovalent anion removal selectivity was 1.4 for the ACS membrane. The results in this study can help in developing the PSMCDI technology

and expand its application for removing monovalent anions from a mixed solution.

关键词

Keywords

references

Views

136

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Thermo-gas-elastic coupling performance analysis of high-speed and high-temperature foil face seals

Progress of solar photo-thermo-catalysis for ammonia synthesis and decomposition under mild conditions

Thermo-oxidative degradation characteristics of TPT backsheet from end-of-life photovoltaic modules

A hybrid modeling and optimization strategy for sequential simulated moving bed

Performance study of gas-liquid vortex separators under low cross-sectional gas velocity

Related Author

No data

Related Institution

No data

⁰