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Nitrobenzene removal in bioelectrochemical systems

Yang Mu, René A Rozendal, Korneel Rabaey UGent and Jürg Keller (2009) ENVIRONMENTAL SCIENCE & TECHNOLOGY. 43(22). p.8690-8695
abstract
Nitrobenzene occurs as a pollutant in wastewaters originating from numerous industrial and agricultural activities. It needs to be removed prior to discharge to sewage treatment works because of its high toxicity and persistence. In this study, we investigated the use of a bioelectrochemical system (BES) to remove nitrobenzene at a cathode coupled to microbial oxidation of acetate at an anode. Effective removal of nitrobenzene at rates up to 1.29 +/- 0.04 mol m(-3) TCC d(-1) (total cathodic compartment, TCC) was achieved with concomitant energy recovery. Correspondingly, the formation rate for the reduction product aniline was 1.14 +/- 0.03 mol m(-3) TCC d(-1). Nitrobenzene removal and aniline formation rates were significantly enhanced when the BES was supplied with power, reaching 8.57 +/- 0.03 and 6.68 +/- 0.03 mol m(-3) TCC d(-1), respectively, at an energy consumption of 17.06 +/- 0.16 W m(-3) TCC (current density at 59.5 A m(-3) TCC). Compared to those of conventional anaerobic biological methods for nitrobenzene removal, the required dosage of organic cosubstrate was significantly reduced in this system. Although aniline was always identified as the major product of nitrobenzene reduction at the cathode of BES in this study, the Coulombic efficiencies of nitrobenzene removal and aniline formation were dependent on the current density of the BES.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
WASTE-WATER, MICROBIAL FUEL-CELLS, ELECTRICITY-GENERATION, NITROAROMATIC COMPOUNDS, POWER-GENERATION, AQUEOUS-SOLUTION, OXIDATION, REDUCTION, BIODEGRADATION, DEGRADATION
journal title
ENVIRONMENTAL SCIENCE & TECHNOLOGY
Environ. Sci. Technol.
volume
43
issue
22
pages
8690 - 8695
Web of Science type
Article
Web of Science id
000271583400038
JCR category
ENVIRONMENTAL SCIENCES
JCR impact factor
4.63 (2009)
JCR rank
7/178 (2009)
JCR quartile
1 (2009)
ISSN
0013-936X
DOI
10.1021/es9020266
language
English
UGent publication?
no
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2009036
handle
http://hdl.handle.net/1854/LU-2009036
date created
2012-01-31 11:08:55
date last changed
2016-12-19 15:45:06
@article{2009036,
  abstract     = {Nitrobenzene occurs as a pollutant in wastewaters originating from numerous industrial and agricultural activities. It needs to be removed prior to discharge to sewage treatment works because of its high toxicity and persistence. In this study, we investigated the use of a bioelectrochemical system (BES) to remove nitrobenzene at a cathode coupled to microbial oxidation of acetate at an anode. Effective removal of nitrobenzene at rates up to 1.29 +/- 0.04 mol m(-3) TCC d(-1) (total cathodic compartment, TCC) was achieved with concomitant energy recovery. Correspondingly, the formation rate for the reduction product aniline was 1.14 +/- 0.03 mol m(-3) TCC d(-1). Nitrobenzene removal and aniline formation rates were significantly enhanced when the BES was supplied with power, reaching 8.57 +/- 0.03 and 6.68 +/- 0.03 mol m(-3) TCC d(-1), respectively, at an energy consumption of 17.06 +/- 0.16 W m(-3) TCC (current density at 59.5 A m(-3) TCC). Compared to those of conventional anaerobic biological methods for nitrobenzene removal, the required dosage of organic cosubstrate was significantly reduced in this system. Although aniline was always identified as the major product of nitrobenzene reduction at the cathode of BES in this study, the Coulombic efficiencies of nitrobenzene removal and aniline formation were dependent on the current density of the BES.},
  author       = {Mu, Yang and Rozendal, Ren{\'e} A and Rabaey, Korneel and Keller, J{\"u}rg},
  issn         = {0013-936X},
  journal      = {ENVIRONMENTAL SCIENCE \& TECHNOLOGY},
  keyword      = {WASTE-WATER,MICROBIAL FUEL-CELLS,ELECTRICITY-GENERATION,NITROAROMATIC COMPOUNDS,POWER-GENERATION,AQUEOUS-SOLUTION,OXIDATION,REDUCTION,BIODEGRADATION,DEGRADATION},
  language     = {eng},
  number       = {22},
  pages        = {8690--8695},
  title        = {Nitrobenzene removal in bioelectrochemical systems},
  url          = {http://dx.doi.org/10.1021/es9020266},
  volume       = {43},
  year         = {2009},
}

Chicago
Mu, Yang, René A Rozendal, Korneel Rabaey, and Jürg Keller. 2009. “Nitrobenzene Removal in Bioelectrochemical Systems.” Environmental Science & Technology 43 (22): 8690–8695.
APA
Mu, Yang, Rozendal, R. A., Rabaey, K., & Keller, J. (2009). Nitrobenzene removal in bioelectrochemical systems. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 43(22), 8690–8695.
Vancouver
1.
Mu Y, Rozendal RA, Rabaey K, Keller J. Nitrobenzene removal in bioelectrochemical systems. ENVIRONMENTAL SCIENCE & TECHNOLOGY. 2009;43(22):8690–5.
MLA
Mu, Yang, René A Rozendal, Korneel Rabaey, et al. “Nitrobenzene Removal in Bioelectrochemical Systems.” ENVIRONMENTAL SCIENCE & TECHNOLOGY 43.22 (2009): 8690–8695. Print.