» Articles » PMID: 30197872

Hydrogen Peroxide Production in a Pilot-scale Microbial Electrolysis Cell

Overview
Specialty Biotechnology
Date 2018 Sep 11
PMID 30197872
Citations 3
Authors
Affiliations
Soon will be listed here.
Abstract

A pilot-scale dual-chamber microbial electrolysis cell (MEC) equipped with a carbon gas-diffusion cathode was evaluated for HO production using acetate medium as the electron donor. To assess the effect of cathodic pH on HO yield, the MEC was tested with an anion exchange membrane (AEM) and a cation exchange membrane (CEM), respectively. The maximum current density reached 0.94-0.96 A/m in the MEC at applied voltage of 0.35-1.9 V, regardless of membranes. The highest HO conversion efficiency was only 7.2 ± 0.09% for the CEM-MEC. This low conversion would be due to further HO reduction to HO on the cathode or HO decomposition in bulk liquid. This low HO conversion indicates that large-scale MECs are not ideal for production of concentrated HO but could be useful for a sustainable in-situ oxidation process in wastewater treatment.

Citing Articles

Scaling-up of microbial electrosynthesis with multiple electrodes for production of hydrogen peroxide.

Zou R, Hasanzadeh A, Khataee A, Yang X, Xu M, Angelidaki I iScience. 2021; 24(2):102094.

PMID: 33748698 PMC: 7969820. DOI: 10.1016/j.isci.2021.102094.


A proof of concept study for wastewater reuse using bioelectrochemical processes combined with complementary post-treatment technologies.

Khan W, Nam J, Woo H, Ryu H, Kim S, Maeng S Environ Sci (Camb). 2020; 5:1489-1498.

PMID: 32607247 PMC: 7326288. DOI: 10.1039/C9EW00358D.


Sewage enhanced bioelectrochemical degradation of petroleum hydrocarbons in soil environment through bioelectro-stimulation.

Mohanakrishna G, Al-Raoush R, Abu-Reesh I Biotechnol Rep (Amst). 2020; 27:e00478.

PMID: 32518761 PMC: 7270540. DOI: 10.1016/j.btre.2020.e00478.

References
1.
Torres C, Marcus A, Rittmann B . Proton transport inside the biofilm limits electrical current generation by anode-respiring bacteria. Biotechnol Bioeng. 2008; 100(5):872-81. DOI: 10.1002/bit.21821. View

2.
Sim J, An J, Elbeshbishy E, Ryu H, Lee H . Characterization and optimization of cathodic conditions for H2O2 synthesis in microbial electrochemical cells. Bioresour Technol. 2015; 195:31-6. DOI: 10.1016/j.biortech.2015.06.076. View

3.
Lee H . Electrokinetic analyses in biofilm anodes: Ohmic conduction of extracellular electron transfer. Bioresour Technol. 2018; 256:509-514. DOI: 10.1016/j.biortech.2018.02.002. View

4.
Zhang Y, Angelidaki I . Microbial electrolysis cells turning to be versatile technology: recent advances and future challenges. Water Res. 2014; 56:11-25. DOI: 10.1016/j.watres.2014.02.031. View

5.
Lovley D . e-Biologics: Fabrication of Sustainable Electronics with "Green" Biological Materials. mBio. 2017; 8(3). PMC: 5487731. DOI: 10.1128/mBio.00695-17. View