Formic acid production using a microbial electrolysis desalination and chemical-production cell.

Yaobin Lu, Haiping Luo, Kunpeng Yang, Guangli Liu, Renduo Zhang, Xiao Li, Bo Ye

Bioresource technology 2017 Nov

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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 72cm of the anode fiber length (72-MEDCC) reached 24.0±2.0A/m2, 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 24cm of the anode fiber length (37.00±1.15vs. 7.00±0.25mg/h). High performance in the 72-MEDCC was attributed to small membrane spacing (1mm), high flow rate (1500μL/min) on the membrane surface and high anode biomass. The minimum electricity consumption of 0.34±0.04kWh/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. Copyright © 2017 Elsevier Ltd. All rights reserved.

Citation

Yaobin Lu, Haiping Luo, Kunpeng Yang, Guangli Liu, Renduo Zhang, Xiao Li, Bo Ye. Formic acid production using a microbial electrolysis desalination and chemical-production cell. Bioresource technology. 2017 Nov;243:118-125