Formic acid production using a microbial electrolysis desalination and chemical-production cell. (November 2017)

• Record Type: Journal Article
• Authors: Lu, Yaobin; Luo, Haiping; Yang, Kunpeng; Liu, Guangli; Zhang, Renduo; Li, Xiao; Ye, Bo
• Is Part Of: Bioresource technology. Volume 243(2017)
• Page Start: 118
• Page End: 125
• Publication Date: 2017-11
• Subjects: Formic acid production -- Microbial electrolysis desalination and chemical-production cell -- Energy consumption -- Current efficiency; 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.2017.06.059
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: The maximum current density in this study was much higher than previously reported. The electric consumption in the 72-MEDCC was 3.1–18.8% of those in the EDBMs. The mechanism of high performance in the 72-MEDCC was discussed. Abstract: The aim of this study was to investigate the feasibility and optimization of formic acid production in the microbial electrolysis desalination and chemical-production cell (MEDCC). The maximum current density in the MEDCC with 72 cm of the anode fiber length (72-MEDCC) reached 24.0 ± 2.0 A/m 2, which was much higher than previously reported. The maximum average formic acid production rate in the 72-MEDCC was 5.28 times higher than that in the MEDCC with 24 cm of the anode fiber length (37.00 ± 1.15 vs. 7.00 ± 0.25 mg/h). High performance in the 72-MEDCC was attributed to small membrane spacing (1 mm), high flow rate (1500 μL/min) on the membrane surface and high anode biomass. The minimum electricity consumption of 0.34 ± 0.04 kWh/kg in the 72-MEDCC was only 3.1–18.8% of those in the EDBMs. The MEDCC should be a promising technology for the formic acid production.