The Influence of Parameters Affecting Boron Removal by Electrocoagulation Process

Handle URI:
http://hdl.handle.net/10754/562707
Title:
The Influence of Parameters Affecting Boron Removal by Electrocoagulation Process
Authors:
Zeboudji, B.; Drouiche, Nadjib; Lounici, Hakim; Mameri, Nabil; Ghaffour, Noreddine ( 0000-0003-2095-4736 )
Abstract:
Boron removal in seawater desalination presents a particular challenge. In seawater reverse osmosis (SWRO) systems boron removal at low concentration (<0.5 mg/L) is usually achieved by a second pass using brackish water RO membranes. However, this process requires chemical addition and important additional investment, operation and maintenance, and energy costs. Electrocoagulation (EC) process can be used to achieve such low boron concentration. In this work, the removal of boron from aqueous solution was carried out by EC process using aluminum and iron electrodes. Several operating parameters on the removal efficiency such as initial pH, current density, initial boron ion concentration, feed concentration, gap between electrodes, and electrode material, were investigated. In the case of bipolar electrocoagulation (BEC), an optimum removal efficiency of 96% corresponding to a final boron concentration of 0.4 mg/L was achieved at a current density of 6 mA/cm2 and pH = 8 using aluminum electrodes. The concentration of NaCl was 2,500 mg/L and the gap between the electrodes of 0.5 cm. Furthermore, a comparison between monopolar electrocoagulation (MEC) and BEC using both aluminum and iron electrodes was carried out. Results showed that the BEC process has reduced the current density applied to obtain high level of boron removal in a short reaction time compared to MEC process. The high performance of the EC showed that the process could be used to reduce boron concentration to acceptable levels at low-cost and more environmentally friendly. © 2013 Copyright Taylor and Francis Group, LLC.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC)
Publisher:
Taylor & Francis
Journal:
Separation Science and Technology (Philadelphia)
Issue Date:
Apr-2013
DOI:
10.1080/01496395.2012.731125
Type:
Article
ISSN:
01496395
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorZeboudji, B.en
dc.contributor.authorDrouiche, Nadjiben
dc.contributor.authorLounici, Hakimen
dc.contributor.authorMameri, Nabilen
dc.contributor.authorGhaffour, Noreddineen
dc.date.accessioned2015-08-03T11:02:24Zen
dc.date.available2015-08-03T11:02:24Zen
dc.date.issued2013-04en
dc.identifier.issn01496395en
dc.identifier.doi10.1080/01496395.2012.731125en
dc.identifier.urihttp://hdl.handle.net/10754/562707en
dc.description.abstractBoron removal in seawater desalination presents a particular challenge. In seawater reverse osmosis (SWRO) systems boron removal at low concentration (<0.5 mg/L) is usually achieved by a second pass using brackish water RO membranes. However, this process requires chemical addition and important additional investment, operation and maintenance, and energy costs. Electrocoagulation (EC) process can be used to achieve such low boron concentration. In this work, the removal of boron from aqueous solution was carried out by EC process using aluminum and iron electrodes. Several operating parameters on the removal efficiency such as initial pH, current density, initial boron ion concentration, feed concentration, gap between electrodes, and electrode material, were investigated. In the case of bipolar electrocoagulation (BEC), an optimum removal efficiency of 96% corresponding to a final boron concentration of 0.4 mg/L was achieved at a current density of 6 mA/cm2 and pH = 8 using aluminum electrodes. The concentration of NaCl was 2,500 mg/L and the gap between the electrodes of 0.5 cm. Furthermore, a comparison between monopolar electrocoagulation (MEC) and BEC using both aluminum and iron electrodes was carried out. Results showed that the BEC process has reduced the current density applied to obtain high level of boron removal in a short reaction time compared to MEC process. The high performance of the EC showed that the process could be used to reduce boron concentration to acceptable levels at low-cost and more environmentally friendly. © 2013 Copyright Taylor and Francis Group, LLC.en
dc.publisherTaylor & Francisen
dc.subjectaluminumen
dc.subjectboron removalen
dc.subjectelectrocoagulationen
dc.subjectelectrodesen
dc.subjectironen
dc.subjectSWROen
dc.titleThe Influence of Parameters Affecting Boron Removal by Electrocoagulation Processen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalSeparation Science and Technology (Philadelphia)en
dc.contributor.institutionCtr Rech Technol Semicond Energet, Algiers 16027, Algeriaen
dc.contributor.institutionEcole Natl Polytech Alger, Biotechnol Lab BIOGEP, Algiers, Algeriaen
dc.contributor.institutionUniv Technol Compiegne, Dept Chem Engn, Compiegne, Franceen
kaust.authorGhaffour, Noreddineen
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