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Updated: Dec 23, 2025
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Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis
Published on: January 6, 2016
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Optimization of boron removal from water by electrodialysis using response surface methodology
Fatma Guesmi1, Islem Louati1, Chiraz Hannachi1
1University of Tunis El Manar, Faculty of Sciences of Tunis, LR19ES01 Desalination and Water Treatment, 2092 Tunis, Tunisia
Summary
Electrodialysis effectively removes boron from water, with efficiency influenced by pH and flow rate, but not time. Optimal conditions achieved 43.5% boron removal.
Area of Science:
- Environmental Science
- Chemical Engineering
Background:
- Boron contamination in water poses environmental and health risks.
- Effective boron removal technologies are crucial for water purification.
Purpose of the Study:
- To investigate boron removal from water using electrodialysis (ED).
- To optimize ED parameters for maximum boron removal efficiency.
Main Methods:
- Electrodialysis cell with cation (fumasep FKB) and anion (fumasep FAB) exchange membranes.
- Central composite design and response surface methodology to study parameters like flow rate, pH, coexisting anions, and ED time.
- Analysis of variance (ANOVA) to analyze experimental data.
Main Results:
- Boron removal efficiency was independent of electrodialysis time.
- Flow rate, initial pH, and coexisting anions significantly impacted boron removal.
- Maximum predicted boron removal of 43.5% was achieved at pH 10, flow rate of 10 L/h, and a sulfate-to-boron ratio of 2.
Conclusions:
- Electrodialysis is a viable method for boron removal from water.
- Optimizing operational parameters like pH and flow rate is key to enhancing ED efficiency for deboronation.
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