Using single-chamber microbial fuel cells as renewable power sources of electro-Fenton reactors for organic pollutant treatment
KAUST Grant NumberKUS-I1-003-13
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AbstractElectro-Fenton reactions can be very effective for organic pollutant degradation, but they typically require non-sustainable electrical power to produce hydrogen peroxide. Two-chamber microbial fuel cells (MFCs) have been proposed for pollutant treatment using Fenton-based reactions, but these types of MFCs have low power densities and require expensive membranes. Here, more efficient dual reactor systems were developed using a single-chamber MFC as a low-voltage power source to simultaneously accomplish H2O2 generation and Fe2+ release for the Fenton reaction. In tests using phenol, 75±2% of the total organic carbon (TOC) was removed in the electro-Fenton reactor in one cycle (22h), and phenol was completely degraded to simple and readily biodegradable organic acids. Compared to previously developed systems based on two-chamber MFCs, the degradation efficiency of organic pollutants was substantially improved. These results demonstrate that this system is an energy-efficient and cost-effective approach for industrial wastewater treatment of certain pollutants. © 2013 Elsevier B.V.
CitationZhu X, Logan BE (2013) Using single-chamber microbial fuel cells as renewable power sources of electro-Fenton reactors for organic pollutant treatment. Journal of Hazardous Materials 252-253: 198–203. Available: http://dx.doi.org/10.1016/j.jhazmat.2013.02.051.
SponsorsThe authors acknowledge support from the King Abdullah University of Science and Technology (KAUST) by Award KUS-I1-003-13.
JournalJournal of Hazardous Materials
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