Separation of mixed salts (Cl-/SO42-) by ED based on monovalent anion selective membranes

Jiefeng Pan; Wei Zhang; Huimin Ruan; Jiangnan Shen; Congjie Gao

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Separation of mixed salts (Cl^-/SO₄^2-) by ED based on monovalent anion selective membranes

Separation Science and Engineering | Updated：2026-01-06

- Separation of mixed salts (Cl^-/SO₄^2-) by ED based on monovalent anion selective membranes
- Chinese Journal of Chemical Engineering Vol. 27, Issue 4, Pages: 857-862(2019)
- Affiliations：
  
  1. Center for Membrane Separation and Water Science & Technology, Ocean College, Zhejiang University of Technology,Hangzhou,China,310014
  2. Huzhou Institute of Collaborative Innovation Center for Membrane Separation and Water Treatment, Zhejiang University of Technology, 1366 Hongfeng Road,Huzhou,China,313000
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2019
- Accepted：
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摘要

Abstract

The industrial products or wastewater rich in the mixed salts (Cl

/SO

) not only causes the environmental damage

but also induces waste of resource. In this study

an ED stack with monovalent selective AEMs and conventional CEMs was employed to separate the Cl

and SO

from simulated wastewater. The effect of current density and mass fraction percentage was investigated in order to optimize the experimental conditions during ED process. It was found that at a concentration ratio between NaCl and Na

of 95/5 (wt%/wt%) and a current density of 40 mA·cm

-2

a current efficiency of 72%

an energy consumption of 1.6 kW·h·kg

-1

NaCl and a Cl

/SO

concentration (67.5/3.5 g·L

-1

) were obtained. Hence

it is appropriate and effective to separate Cl

and SO

by ED using the monovalent selective AEMs.

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