Treating refinery wastewaters in microbial fuel cells using separator electrode assembly or spaced electrode configurations
KAUST Grant NumberKUS-I1-003-13
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AbstractThe effectiveness of refinery wastewater (RW) treatment using air-cathode, microbial fuel cells (MFCs) was examined relative to previous tests based on completely anaerobic microbial electrolysis cells (MECs). MFCs were configured with separator electrode assembly (SEA) or spaced electrode (SPA) configurations to measure power production and relative impacts of oxygen crossover on organics removal. The SEA configuration produced a higher maximum power density (280±6mW/m2; 16.3±0.4W/m3) than the SPA arrangement (255±2mW/m2) due to lower internal resistance. Power production in both configurations was lower than that obtained with the domestic wastewater (positive control) due to less favorable (more positive) anode potentials, indicating poorer biodegradability of the RW. MFCs with RW achieved up to 84% total COD removal, 73% soluble COD removal and 92% HBOD removal. These removals were higher than those previously obtained in mini-MEC tests, as oxygen crossover from the cathode enhanced degradation in MFCs compared to MECs. © 2013 Elsevier Ltd.
CitationZhang F, Ahn Y, Logan BE (2014) Treating refinery wastewaters in microbial fuel cells using separator electrode assembly or spaced electrode configurations. Bioresource Technology 152: 46–52. Available: http://dx.doi.org/10.1016/j.biortech.2013.10.103.
SponsorsThe authors thank David Jones for help with the analytical measurements, and Lijiao Ren for useful discussions. This research was supported by Chevron, and an Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST).
CollectionsPublications Acknowledging KAUST Support
- Treatability studies on different refinery wastewater samples using high-throughput microbial electrolysis cells (MECs).
- Authors: Ren L, Siegert M, Ivanov I, Pisciotta JM, Logan BE
- Issue date: 2013 May
- Domestic wastewater treatment using multi-electrode continuous flow MFCs with a separator electrode assembly design.
- Authors: Ahn Y, Logan BE
- Issue date: 2013 Jan
- Improving startup performance with carbon mesh anodes in separator electrode assembly microbial fuel cells.
- Authors: Zhang F, Xia X, Luo Y, Sun D, Call DF, Logan BE
- Issue date: 2013 Apr
- Impact of electrode configurations on retention time and domestic wastewater treatment efficiency using microbial fuel cells.
- Authors: Kim KY, Yang W, Logan BE
- Issue date: 2015 Sep 1
- Energy-efficient treatment of organic wastewater streams using a rotatable bioelectrochemical contactor (RBEC).
- Authors: Cheng KY, Ho G, Cord-Ruwisch R
- Issue date: 2012 Dec