Tags

Type your tag names separated by a space and hit enter

A single-chamber microbial fuel cell without an air cathode.
Int J Mol Sci. 2012; 13(3):3933-48.IJ

Abstract

Microbial fuel cells (MFCs) represent a novel technology for wastewater treatment with electricity production. Electricity generation with simultaneous nitrate reduction in a single-chamber MFC without air cathode was studied, using glucose (1 mM) as the carbon source and nitrate (1 mM) as the final electron acceptor employed by Bacillus subtilis under anaerobic conditions. Increasing current as a function of decreased nitrate concentration and an increase in biomass were observed with a maximum current of 0.4 mA obtained at an external resistance (R(ext)) of 1 KΩ without a platinum catalyst of air cathode. A decreased current with complete nitrate reduction, with further recovery of the current immediately after nitrate addition, indicated the dependence of B. subtilis on nitrate as an electron acceptor to efficiently produce electricity. A power density of 0.0019 mW/cm(2) was achieved at an R(ext) of 220 Ω. Cyclic voltammograms (CV) showed direct electron transfer with the involvement of mediators in the MFC. The low coulombic efficiency (CE) of 11% was mainly attributed to glucose fermentation. These results demonstrated that electricity generation is possible from wastewater containing nitrate, and this represents an alternative technology for the cost-effective and environmentally benign treatment of wastewater.

Authors+Show Affiliations

Department of Life Science, National Chung Cheng University, 168 University Road, Minhsiung, Chiayi, 621, Taiwan; E-Mails: vanita.nimje@gmail.com (V.R.N.); biohrc@ccu.edu.tw (H.-R.C.); biomjt@ccu.edu.tw (M.-J.T.).No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22489190

Citation

Nimje, Vanita Roshan, et al. "A Single-chamber Microbial Fuel Cell Without an Air Cathode." International Journal of Molecular Sciences, vol. 13, no. 3, 2012, pp. 3933-48.
Nimje VR, Chen CC, Chen HR, et al. A single-chamber microbial fuel cell without an air cathode. Int J Mol Sci. 2012;13(3):3933-48.
Nimje, V. R., Chen, C. C., Chen, H. R., Chen, C. Y., Tseng, M. J., Cheng, K. C., Shih, R. C., & Chang, Y. F. (2012). A single-chamber microbial fuel cell without an air cathode. International Journal of Molecular Sciences, 13(3), 3933-48. https://doi.org/10.3390/ijms13033933
Nimje VR, et al. A Single-chamber Microbial Fuel Cell Without an Air Cathode. Int J Mol Sci. 2012;13(3):3933-48. PubMed PMID: 22489190.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A single-chamber microbial fuel cell without an air cathode. AU - Nimje,Vanita Roshan, AU - Chen,Chien-Cheng, AU - Chen,Hau-Ren, AU - Chen,Chien-Yen, AU - Tseng,Min-Jen, AU - Cheng,Kai-Chien, AU - Shih,Ruey-Chyuan, AU - Chang,Young-Fo, Y1 - 2012/03/22/ PY - 2011/11/23/received PY - 2012/01/19/revised PY - 2012/03/14/accepted PY - 2012/4/11/entrez PY - 2012/4/11/pubmed PY - 2012/4/11/medline KW - Bacillus subtilis KW - aerobic KW - air cathode KW - cyclic voltammograms KW - fermentation KW - glucose KW - microbial fuel cells KW - microbial growth KW - nitrate reduction SP - 3933 EP - 48 JF - International journal of molecular sciences JO - Int J Mol Sci VL - 13 IS - 3 N2 - Microbial fuel cells (MFCs) represent a novel technology for wastewater treatment with electricity production. Electricity generation with simultaneous nitrate reduction in a single-chamber MFC without air cathode was studied, using glucose (1 mM) as the carbon source and nitrate (1 mM) as the final electron acceptor employed by Bacillus subtilis under anaerobic conditions. Increasing current as a function of decreased nitrate concentration and an increase in biomass were observed with a maximum current of 0.4 mA obtained at an external resistance (R(ext)) of 1 KΩ without a platinum catalyst of air cathode. A decreased current with complete nitrate reduction, with further recovery of the current immediately after nitrate addition, indicated the dependence of B. subtilis on nitrate as an electron acceptor to efficiently produce electricity. A power density of 0.0019 mW/cm(2) was achieved at an R(ext) of 220 Ω. Cyclic voltammograms (CV) showed direct electron transfer with the involvement of mediators in the MFC. The low coulombic efficiency (CE) of 11% was mainly attributed to glucose fermentation. These results demonstrated that electricity generation is possible from wastewater containing nitrate, and this represents an alternative technology for the cost-effective and environmentally benign treatment of wastewater. SN - 1422-0067 UR - https://www.unboundmedicine.com/medline/citation/22489190/A_single_chamber_microbial_fuel_cell_without_an_air_cathode_ L2 - https://doi.org/10.3390/ijms13033933 DB - PRIME DP - Unbound Medicine ER -