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Effect of enrichment procedures on performance and microbial diversity of microbial fuel cell for Congo red decolorization and electricity generation.
Appl Microbiol Biotechnol. 2011 May; 90(4):1563-72.AM

Abstract

The purpose of this study was to determine the effect of enrichment procedure on the performance and microbial diversity of an air-cathode microbial fuel cell (MFC) which was explored for simultaneous azo dye decolorization and electricity generation. Two different enrichment procedures in which glucose and Congo red were added into the MFCs sequentially (EP1) or simultaneously (EP2) were tested by operating parallel MFCs independently for more than 6 months. The power density, electrode potential, Congo red decolorization, biofilm morphology, and bacterial diversity of the MFCs under the two enrichment procedures were compared and investigated. The results showed that the enrichment procedures have a negligible effect on the dye decolorization, but significantly affected the electricity generation. More than 90% decolorization at dye concentration of 300 mg/L was achieved within 170 h for the two tested enrichment procedures. However, the MFC with EP2 achieved a maximum power density of 192 mW/m(2), which was 75% higher than that of the MFC with EP1 (110 mW/m(2)). The depressed surfaces of the bacteria in the MFC with EP1 indicated the allergic response caused by the subsequent addition of Congo red. 16S rRNA sequencing analysis demonstrated a phylogenetic diversity in the communities of the anode biofilm and showed clear differences between the anode-attached populations in the MFCs with a different enrichment procedure. This study suggests that the enrichment procedure is important for the MFC explored for simultaneous dye decolorization and electricity generation.

Authors+Show Affiliations

State Key Laboratory of Pulp and Paper Engineering, Department of Environmental Science and Engineering, South China University of Technology, Guangzhou, China. houbin566@163.comNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

21468708

Citation

Hou, Bin, et al. "Effect of Enrichment Procedures On Performance and Microbial Diversity of Microbial Fuel Cell for Congo Red Decolorization and Electricity Generation." Applied Microbiology and Biotechnology, vol. 90, no. 4, 2011, pp. 1563-72.
Hou B, Sun J, Hu Y. Effect of enrichment procedures on performance and microbial diversity of microbial fuel cell for Congo red decolorization and electricity generation. Appl Microbiol Biotechnol. 2011;90(4):1563-72.
Hou, B., Sun, J., & Hu, Y. (2011). Effect of enrichment procedures on performance and microbial diversity of microbial fuel cell for Congo red decolorization and electricity generation. Applied Microbiology and Biotechnology, 90(4), 1563-72. https://doi.org/10.1007/s00253-011-3226-2
Hou B, Sun J, Hu Y. Effect of Enrichment Procedures On Performance and Microbial Diversity of Microbial Fuel Cell for Congo Red Decolorization and Electricity Generation. Appl Microbiol Biotechnol. 2011;90(4):1563-72. PubMed PMID: 21468708.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of enrichment procedures on performance and microbial diversity of microbial fuel cell for Congo red decolorization and electricity generation. AU - Hou,Bin, AU - Sun,Jian, AU - Hu,Yongyou, Y1 - 2011/04/06/ PY - 2010/11/17/received PY - 2011/03/10/accepted PY - 2011/01/14/revised PY - 2011/4/7/entrez PY - 2011/4/7/pubmed PY - 2011/8/6/medline SP - 1563 EP - 72 JF - Applied microbiology and biotechnology JO - Appl Microbiol Biotechnol VL - 90 IS - 4 N2 - The purpose of this study was to determine the effect of enrichment procedure on the performance and microbial diversity of an air-cathode microbial fuel cell (MFC) which was explored for simultaneous azo dye decolorization and electricity generation. Two different enrichment procedures in which glucose and Congo red were added into the MFCs sequentially (EP1) or simultaneously (EP2) were tested by operating parallel MFCs independently for more than 6 months. The power density, electrode potential, Congo red decolorization, biofilm morphology, and bacterial diversity of the MFCs under the two enrichment procedures were compared and investigated. The results showed that the enrichment procedures have a negligible effect on the dye decolorization, but significantly affected the electricity generation. More than 90% decolorization at dye concentration of 300 mg/L was achieved within 170 h for the two tested enrichment procedures. However, the MFC with EP2 achieved a maximum power density of 192 mW/m(2), which was 75% higher than that of the MFC with EP1 (110 mW/m(2)). The depressed surfaces of the bacteria in the MFC with EP1 indicated the allergic response caused by the subsequent addition of Congo red. 16S rRNA sequencing analysis demonstrated a phylogenetic diversity in the communities of the anode biofilm and showed clear differences between the anode-attached populations in the MFCs with a different enrichment procedure. This study suggests that the enrichment procedure is important for the MFC explored for simultaneous dye decolorization and electricity generation. SN - 1432-0614 UR - https://www.unboundmedicine.com/medline/citation/21468708/Effect_of_enrichment_procedures_on_performance_and_microbial_diversity_of_microbial_fuel_cell_for_Congo_red_decolorization_and_electricity_generation_ L2 - https://dx.doi.org/10.1007/s00253-011-3226-2 DB - PRIME DP - Unbound Medicine ER -