A comparative evaluation of different types of microbial electrolysis desalination cells for malic acid production. (December 2015)

• Record Type: Journal Article
• Authors: Liu, Guangli; Zhou, Ying; Luo, Haiping; Cheng, Xing; Zhang, Renduo; Teng, Wenkai
• Is Part Of: Bioresource technology. Volume 198(2015)
• Page Start: 87
• Page End: 93
• Publication Date: 2015-12
• Subjects: Malic acid production -- Microbial electrolysis desalination cell -- Energy consumption -- Bacteria community; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2015.08.149
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: MEDCC was with the highest malic acid production and the lowest energy consumption. The MEDCC had the lowest internal resistance and the highest Geobacter percentage. Different types of MEDCs were investigated for malic acid production. Abstract: The aim of this study was to investigate different microbial electrolysis desalination cells for malic acid production. The systems included microbial electrolysis desalination and chemical-production cell (MEDCC), microbial electrolysis desalination cell (MEDC) with bipolar membrane and anion exchange membrane (BP-A MEDC), MEDC with bipolar membrane and cation exchange membrane (BP-C MEDC), and modified microbial desalination cell (M-MDC). The microbial electrolysis desalination cells performed differently in terms of malic acid production and energy consumption. The MEDCC performed best with the highest malic acid production rate (18.4 ± 0.6 mmol/L h) and the lowest energy consumption (0.35 ± 0.14 kW h/kg). The best performance of MEDCC was attributable to the neutral pH condition in the anode chamber, the lowest internal resistance, and the highest Geobacter percentage of the anode biofilm population among all the reactors.