Removal of Monovalent and Divalent Cations from Brine Water by Electrodialysis Using Modified Polyethersulfone Membranes

In electrodialysis, an ion exchange membrane removes unwanted ions from wastewater and toxic metal ions from effluents. Montmorillonite-based modified "polyethersulfone membranes" have been studied as a potential small-scale electrodialysis approach for removing ions from wastewater. The...

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Main Authors: Zainab A. Khalaf, Sarah S. Mohammed Jawad
Format: Article
Language:English
Published: Tikrit University 2024-01-01
Series:Tikrit Journal of Engineering Sciences
Subjects:
Online Access:https://tj-es.com/ojs/index.php/tjes/article/view/1120
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author Zainab A. Khalaf
Sarah S. Mohammed Jawad
author_facet Zainab A. Khalaf
Sarah S. Mohammed Jawad
author_sort Zainab A. Khalaf
collection DOAJ
description In electrodialysis, an ion exchange membrane removes unwanted ions from wastewater and toxic metal ions from effluents. Montmorillonite-based modified "polyethersulfone membranes" have been studied as a potential small-scale electrodialysis approach for removing ions from wastewater. The study featured several steps, including solid polymerization, electrolyte balance, and removal of each component from the water. The study used three distinct “cation-exchange membranes (CEM)" types. The selected water body was diluted 100 times before being added to the electrodialysis cell in amounts of the center, cathodic, and anodic chambers, each containing 55, 30, and 40 mL. The initial pH for the real solutions of the water body was 7.16 at 25°C. Compared to "Sulfonated poly arylene ether sulfone (S-PESOS)" (23.23%) and Nafion® (35.34%), "hexamethylenediamine (HEXCl)" stands out as the only cross-linked material with significantly high-water content. When the membrane water content is too high, the membrane may lose its mechanical strength and cannot provide enough ionic conductivity. The semi-empirical model's parameters were estimated to simulate the elimination of Na+, K+, Ca2+, and Mg2+ by three membranes. HEXCl and S-PESOS were electrodialyzed and used to treat the serial dilution from the water with cationics. The removal rate gradually rose after the electrodialysis started.
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spelling doaj.art-a897f755b5924f12927fde5c34a3a2d22024-01-31T05:35:54ZengTikrit UniversityTikrit Journal of Engineering Sciences1813-162X2312-75892024-01-0131110.25130/tjes.31.1.3Removal of Monovalent and Divalent Cations from Brine Water by Electrodialysis Using Modified Polyethersulfone Membranes Zainab A. Khalaf0Sarah S. Mohammed Jawad1Department of Electromechanical Engineering, College of Engineering, University of Samarra, Samarra, Iraq.Department of Chemistry, College of Education, University of Samarra, Samarra, Iraq. In electrodialysis, an ion exchange membrane removes unwanted ions from wastewater and toxic metal ions from effluents. Montmorillonite-based modified "polyethersulfone membranes" have been studied as a potential small-scale electrodialysis approach for removing ions from wastewater. The study featured several steps, including solid polymerization, electrolyte balance, and removal of each component from the water. The study used three distinct “cation-exchange membranes (CEM)" types. The selected water body was diluted 100 times before being added to the electrodialysis cell in amounts of the center, cathodic, and anodic chambers, each containing 55, 30, and 40 mL. The initial pH for the real solutions of the water body was 7.16 at 25°C. Compared to "Sulfonated poly arylene ether sulfone (S-PESOS)" (23.23%) and Nafion® (35.34%), "hexamethylenediamine (HEXCl)" stands out as the only cross-linked material with significantly high-water content. When the membrane water content is too high, the membrane may lose its mechanical strength and cannot provide enough ionic conductivity. The semi-empirical model's parameters were estimated to simulate the elimination of Na+, K+, Ca2+, and Mg2+ by three membranes. HEXCl and S-PESOS were electrodialyzed and used to treat the serial dilution from the water with cationics. The removal rate gradually rose after the electrodialysis started. https://tj-es.com/ojs/index.php/tjes/article/view/1120Toxic Metal IonsWastewaterPolymericIon ExchangeCation-Exchange Membranes
spellingShingle Zainab A. Khalaf
Sarah S. Mohammed Jawad
Removal of Monovalent and Divalent Cations from Brine Water by Electrodialysis Using Modified Polyethersulfone Membranes
Tikrit Journal of Engineering Sciences
Toxic Metal Ions
Wastewater
Polymeric
Ion Exchange
Cation-Exchange Membranes
title Removal of Monovalent and Divalent Cations from Brine Water by Electrodialysis Using Modified Polyethersulfone Membranes
title_full Removal of Monovalent and Divalent Cations from Brine Water by Electrodialysis Using Modified Polyethersulfone Membranes
title_fullStr Removal of Monovalent and Divalent Cations from Brine Water by Electrodialysis Using Modified Polyethersulfone Membranes
title_full_unstemmed Removal of Monovalent and Divalent Cations from Brine Water by Electrodialysis Using Modified Polyethersulfone Membranes
title_short Removal of Monovalent and Divalent Cations from Brine Water by Electrodialysis Using Modified Polyethersulfone Membranes
title_sort removal of monovalent and divalent cations from brine water by electrodialysis using modified polyethersulfone membranes
topic Toxic Metal Ions
Wastewater
Polymeric
Ion Exchange
Cation-Exchange Membranes
url https://tj-es.com/ojs/index.php/tjes/article/view/1120
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