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Characterization of the COD removal, electricity generation, and bacterial communities in microbial fuel cells treating molasses wastewater.

Abstract

The chemical oxygen demand (COD) removal, electricity generation, and microbial communities were compared in 3 types of microbial fuel cells (MFCs) treating molasses wastewater. Single-chamber MFCs without and with a proton exchange membrane (PEM), and double-chamber MFC were constructed. A total of 10,000 mg L(-1) COD of molasses wastewater was continuously fed. The COD removal, electricity generation, and microbial communities in the two types of single-chamber MFCs were similar, indicating that the PEM did not enhance the reactor performance. The COD removal in the single-chamber MFCs (89-90%) was higher than that in the double-chamber MFC (50%). However, electricity generation in the double-chamber MFC was higher than that in the single-chamber MFCs. The current density (80 mA m(-2)) and power density (17 mW m(-2)) in the double-chamber MFC were 1.4- and 2.2-times higher than those in the single-chamber MFCs, respectively. The bacterial community structures in single- and double-chamber MFCs were also distinguishable. The amount of Proteobacteria in the double-chamber MFC was 2-3 times higher than those in the single-chamber MFCs. For the archaeal community, Methanothrix (96.4%) was remarkably dominant in the single-chamber MFCs, but Methanobacterium (35.1%), Methanosarcina (28.3%), and Methanothrix (16.2%) were abundant in the double-chamber MFC.

Authors+Show Affiliations

a Department of Environmental Science and Engineering , Ewha Womans University , 52 Ewhayeodae-gil, Seodaemun-gu, Seoul , 03760 , Republic of Korea.a Department of Environmental Science and Engineering , Ewha Womans University , 52 Ewhayeodae-gil, Seodaemun-gu, Seoul , 03760 , Republic of Korea.a Department of Environmental Science and Engineering , Ewha Womans University , 52 Ewhayeodae-gil, Seodaemun-gu, Seoul , 03760 , Republic of Korea.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27428492

Citation

Lee, Yun-Yeong, et al. "Characterization of the COD Removal, Electricity Generation, and Bacterial Communities in Microbial Fuel Cells Treating Molasses Wastewater." Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering, vol. 51, no. 13, 2016, pp. 1131-8.
Lee YY, Kim TG, Cho KS. Characterization of the COD removal, electricity generation, and bacterial communities in microbial fuel cells treating molasses wastewater. J Environ Sci Health A Tox Hazard Subst Environ Eng. 2016;51(13):1131-8.
Lee, Y. Y., Kim, T. G., & Cho, K. S. (2016). Characterization of the COD removal, electricity generation, and bacterial communities in microbial fuel cells treating molasses wastewater. Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering, 51(13), 1131-8. https://doi.org/10.1080/10934529.2016.1199926
Lee YY, Kim TG, Cho KS. Characterization of the COD Removal, Electricity Generation, and Bacterial Communities in Microbial Fuel Cells Treating Molasses Wastewater. J Environ Sci Health A Tox Hazard Subst Environ Eng. 2016 Nov 9;51(13):1131-8. PubMed PMID: 27428492.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Characterization of the COD removal, electricity generation, and bacterial communities in microbial fuel cells treating molasses wastewater. AU - Lee,Yun-Yeong, AU - Kim,Tae G, AU - Cho,Kyung-Suk, Y1 - 2016/07/18/ PY - 2016/7/19/entrez PY - 2016/7/19/pubmed PY - 2017/4/25/medline KW - biodegradation KW - bioreactors KW - microbial fuel cells (MFCs) KW - molasses wastewater KW - wastewater treatment SP - 1131 EP - 8 JF - Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering JO - J Environ Sci Health A Tox Hazard Subst Environ Eng VL - 51 IS - 13 N2 - The chemical oxygen demand (COD) removal, electricity generation, and microbial communities were compared in 3 types of microbial fuel cells (MFCs) treating molasses wastewater. Single-chamber MFCs without and with a proton exchange membrane (PEM), and double-chamber MFC were constructed. A total of 10,000 mg L(-1) COD of molasses wastewater was continuously fed. The COD removal, electricity generation, and microbial communities in the two types of single-chamber MFCs were similar, indicating that the PEM did not enhance the reactor performance. The COD removal in the single-chamber MFCs (89-90%) was higher than that in the double-chamber MFC (50%). However, electricity generation in the double-chamber MFC was higher than that in the single-chamber MFCs. The current density (80 mA m(-2)) and power density (17 mW m(-2)) in the double-chamber MFC were 1.4- and 2.2-times higher than those in the single-chamber MFCs, respectively. The bacterial community structures in single- and double-chamber MFCs were also distinguishable. The amount of Proteobacteria in the double-chamber MFC was 2-3 times higher than those in the single-chamber MFCs. For the archaeal community, Methanothrix (96.4%) was remarkably dominant in the single-chamber MFCs, but Methanobacterium (35.1%), Methanosarcina (28.3%), and Methanothrix (16.2%) were abundant in the double-chamber MFC. SN - 1532-4117 UR - https://www.unboundmedicine.com/medline/citation/27428492/Characterization_of_the_COD_removal_electricity_generation_and_bacterial_communities_in_microbial_fuel_cells_treating_molasses_wastewater_ L2 - https://www.tandfonline.com/doi/full/10.1080/10934529.2016.1199926 DB - PRIME DP - Unbound Medicine ER -