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Bio-electro-Fenton process driven by microbial fuel cell for wastewater treatment.
Environ Sci Technol. 2010 Mar 01; 44(5):1875-80.ES

Abstract

In this study, we proposed a new concept of utilizing the biological electrons produced from a microbial fuel cell (MFC) to power an E-Fenton process to treat wastewater at neutral pH as a bioelectro-Fenton (Bio-E-Fenton) process. This process can be achieved in a dual-chamber MFC from which electrons were generated via the catalyzation of Shewanella decolorationis S12 in its anaerobic anode chamber and transferred to its aerated cathode chamber equipped with a carbon nanotube (CNT)/gamma-FeOOH composite cathode. In the cathode chamber, the Fenton's reagents including hydrogen peroxide (H(2)O(2)) and ferrous irons (Fe(2+)) were in situ generated. This Bio-E-Fenton process led to the complete decolorization and mineralization of Orange II at pH 7.0 with the apparent first-order rate constants, k(app) = 0.212 h(-1) and k(TOC) = 0.0827 h(-1), respectively, and simultaneously produced a maximum power output of 230 mW m(-2) (normalized to the cathode surface area). The apparent mineralization current efficiency was calculated to be as high as 89%. The cathode composition was an important factor in governing system performance. When the ratio of CNT to gamma-FeOOH in the composite cathode was 1:1, the system demonstrated the fastest rate of Orange II degradation, corresponding to the highest amount of H(2)O(2) formed.

Authors+Show Affiliations

The Key Lab of Enhanced Heat Transfer and Energy Conservation, Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China.No 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

20108963

Citation

Feng, Chun-Hua, et al. "Bio-electro-Fenton Process Driven By Microbial Fuel Cell for Wastewater Treatment." Environmental Science & Technology, vol. 44, no. 5, 2010, pp. 1875-80.
Feng CH, Li FB, Mai HJ, et al. Bio-electro-Fenton process driven by microbial fuel cell for wastewater treatment. Environ Sci Technol. 2010;44(5):1875-80.
Feng, C. H., Li, F. B., Mai, H. J., & Li, X. Z. (2010). Bio-electro-Fenton process driven by microbial fuel cell for wastewater treatment. Environmental Science & Technology, 44(5), 1875-80. https://doi.org/10.1021/es9032925
Feng CH, et al. Bio-electro-Fenton Process Driven By Microbial Fuel Cell for Wastewater Treatment. Environ Sci Technol. 2010 Mar 1;44(5):1875-80. PubMed PMID: 20108963.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Bio-electro-Fenton process driven by microbial fuel cell for wastewater treatment. AU - Feng,Chun-Hua, AU - Li,Fang-Bai, AU - Mai,Hong-Jian, AU - Li,Xiang-Zhong, PY - 2010/1/30/entrez PY - 2010/1/30/pubmed PY - 2010/4/30/medline SP - 1875 EP - 80 JF - Environmental science & technology JO - Environ. Sci. Technol. VL - 44 IS - 5 N2 - In this study, we proposed a new concept of utilizing the biological electrons produced from a microbial fuel cell (MFC) to power an E-Fenton process to treat wastewater at neutral pH as a bioelectro-Fenton (Bio-E-Fenton) process. This process can be achieved in a dual-chamber MFC from which electrons were generated via the catalyzation of Shewanella decolorationis S12 in its anaerobic anode chamber and transferred to its aerated cathode chamber equipped with a carbon nanotube (CNT)/gamma-FeOOH composite cathode. In the cathode chamber, the Fenton's reagents including hydrogen peroxide (H(2)O(2)) and ferrous irons (Fe(2+)) were in situ generated. This Bio-E-Fenton process led to the complete decolorization and mineralization of Orange II at pH 7.0 with the apparent first-order rate constants, k(app) = 0.212 h(-1) and k(TOC) = 0.0827 h(-1), respectively, and simultaneously produced a maximum power output of 230 mW m(-2) (normalized to the cathode surface area). The apparent mineralization current efficiency was calculated to be as high as 89%. The cathode composition was an important factor in governing system performance. When the ratio of CNT to gamma-FeOOH in the composite cathode was 1:1, the system demonstrated the fastest rate of Orange II degradation, corresponding to the highest amount of H(2)O(2) formed. SN - 0013-936X UR - https://www.unboundmedicine.com/medline/citation/20108963/Bio_electro_Fenton_process_driven_by_microbial_fuel_cell_for_wastewater_treatment_ L2 - https://dx.doi.org/10.1021/es9032925 DB - PRIME DP - Unbound Medicine ER -