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Simultaneous organics, sulphate and salt removal in a microbial desalination cell with an insight into microbial communities

Jafary, Tahereh and Wan Daud, Wan Ramli and A. Aljlil, Saad and Ismail, Ahmad Fauzi and Al-Mamun, Abdullah and Baawain, Mahad S. and Ghasemi, Mostafa (2018) Simultaneous organics, sulphate and salt removal in a microbial desalination cell with an insight into microbial communities. Desalination, 445 . pp. 204-212. ISSN 0011-9164

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Official URL: http://dx.doi.org/10.1016/j.desal.2018.08.010

Abstract

Microbial desalination cells (MDCs) are known among the bioelectrochemical systems for their green and cost-effective application in salt removal. However, the low efficiency of desalination compared to other chemical and membrane-based methods still holding this technology in laboratory and requiring further research and development (R&D) to establish actual plants. This study focused on integrating different applicable functions in one setup to promote applying MDCs in actual scale. In this research, the behavior of the MDC upon applying different salt concentrations in the desalination chamber was studied. Moreover, salt, sulphate and organic matter removal in acetate and sulphate-fed MDCs (A.MDC and S.MDC) were investigated. 10, 20 and 35 g/l of salt were successfully removed by using MDC technology. Sulphate removal of 72% was achieved within the S.MDC setup while similar current productions were observed in both A.MDC and S.MDC. Higher COD removal (88%) was recorded in S.MDC compared to 65% in A.MDC. Furthermore, the microbial communities were characterized and Rubrivivax was identified as the dominant genus in A.MDC while Desulfobulbus, Geobacter and Desulfovibrio were the most abundant genera in S.MDC setup.

Item Type:Article
Uncontrolled Keywords:microbial community, microbial desalination cell, organic matter removal, sulphate removal
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Energy Engineering
ID Code:84437
Deposited By: Yanti Mohd Shah
Deposited On:11 Jan 2020 15:08
Last Modified:11 Jan 2020 15:08

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