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Catalytic dechlorination of diclofenac by biogenic palladium in a microbial electrolysis cell

Bart De Gusseme UGent, Maarten Soetaert UGent, Tom Hennebel UGent, Lynn Vanhaecke UGent, Nico Boon UGent and Willy Verstraete UGent (2012) MICROBIAL BIOTECHNOLOGY. 5(3). p.396-402
abstract
Diclofenac is one of the most commonly detected pharmaceuticals in wastewater treatment plant (WWTP) effluents and the receiving water bodies. In this study, biogenic Pd nanoparticles (bio-Pd) were successfully applied in a microbial electrolysis cell (MEC) for the catalytic reduction of diclofenac. Hydrogen gas was produced in the cathodic compartment, and consumed as a hydrogen donor by the bio-Pd on the graphite electrodes. In this way, complete dechlorination of 1 mg diclofenac l-1 was achieved during batch recirculation experiments, whereas no significant removal was observed in the absence of the biocatalyst. The complete dechlorination of diclofenac was demonstrated by the concomitant production of 2-anilinophenylacetate (APA). Through the addition of -0.8 V to the circuit, continuous and complete removal of diclofenac was achieved in synthetic medium at a minimal HRT of 2 h. Continuous treatment of hospital WWTP effluent containing 1.28 mu g diclofenac l-1 resulted in a lower removal efficiency of 57%, which can probably be attributed to the affinity of other environmental constituents for the bio-Pd catalyst. Nevertheless, reductive catalysis coupled to sustainable hydrogen production in a MEC offers potential to lower the release of micropollutants from point-sources such as hospital WWTPs.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
WASTE-WATER TREATMENT, DRINKING-WATER, TREATMENT PLANTS, MUSK FRAGRANCES, OZONATION, PHARMACEUTICALS, PD CATALYSTS, REMOVAL, CONTRAST-MEDIA, OXIDATION
journal title
MICROBIAL BIOTECHNOLOGY
Microb. Biotechnol.
editor
Nico Boon UGent and Willy Verstraete UGent
volume
5
issue
3
issue title
Microbial resource management
pages
396 - 402
Web of Science type
Article
Web of Science id
000302858900009
JCR category
BIOTECHNOLOGY & APPLIED MICROBIOLOGY
JCR impact factor
3.214 (2012)
JCR rank
41/157 (2012)
JCR quartile
2 (2012)
ISSN
1751-7907
DOI
10.1111/j.1751-7915.2011.00325.x
project
Biotechnology for a sustainable economy (Bio-Economy)
language
English
UGent publication?
yes
classification
A1
copyright statement
I have retained and own the full copyright for this publication
id
2108767
handle
http://hdl.handle.net/1854/LU-2108767
date created
2012-05-16 13:54:39
date last changed
2014-05-26 10:02:57
@article{2108767,
  abstract     = {Diclofenac is one of the most commonly detected pharmaceuticals in wastewater treatment plant (WWTP) effluents and the receiving water bodies. In this study, biogenic Pd nanoparticles (bio-Pd) were successfully applied in a microbial electrolysis cell (MEC) for the catalytic reduction of diclofenac. Hydrogen gas was produced in the cathodic compartment, and consumed as a hydrogen donor by the bio-Pd on the graphite electrodes. In this way, complete dechlorination of 1 mg diclofenac l-1 was achieved during batch recirculation experiments, whereas no significant removal was observed in the absence of the biocatalyst. The complete dechlorination of diclofenac was demonstrated by the concomitant production of 2-anilinophenylacetate (APA). Through the addition of -0.8 V to the circuit, continuous and complete removal of diclofenac was achieved in synthetic medium at a minimal HRT of 2 h. Continuous treatment of hospital WWTP effluent containing 1.28 mu g diclofenac l-1 resulted in a lower removal efficiency of 57\%, which can probably be attributed to the affinity of other environmental constituents for the bio-Pd catalyst. Nevertheless, reductive catalysis coupled to sustainable hydrogen production in a MEC offers potential to lower the release of micropollutants from point-sources such as hospital WWTPs.},
  author       = {De Gusseme, Bart and Soetaert, Maarten and Hennebel, Tom and Vanhaecke, Lynn and Boon, Nico and Verstraete, Willy},
  editor       = {Boon, Nico and Verstraete, Willy},
  issn         = {1751-7907},
  journal      = {MICROBIAL BIOTECHNOLOGY},
  keyword      = {WASTE-WATER TREATMENT,DRINKING-WATER,TREATMENT PLANTS,MUSK FRAGRANCES,OZONATION,PHARMACEUTICALS,PD CATALYSTS,REMOVAL,CONTRAST-MEDIA,OXIDATION},
  language     = {eng},
  number       = {3},
  pages        = {396--402},
  title        = {Catalytic dechlorination of diclofenac by biogenic palladium in a microbial electrolysis cell},
  url          = {http://dx.doi.org/10.1111/j.1751-7915.2011.00325.x},
  volume       = {5},
  year         = {2012},
}

Chicago
De Gusseme, Bart, Maarten Soetaert, Tom Hennebel, Lynn Vanhaecke, Nico Boon, and Willy Verstraete. 2012. “Catalytic Dechlorination of Diclofenac by Biogenic Palladium in a Microbial Electrolysis Cell.” Ed. Nico Boon and Willy Verstraete. Microbial Biotechnology 5 (3): 396–402.
APA
De Gusseme, B., Soetaert, M., Hennebel, T., Vanhaecke, L., Boon, N., & Verstraete, W. (2012). Catalytic dechlorination of diclofenac by biogenic palladium in a microbial electrolysis cell. (N. Boon & W. Verstraete, Eds.)MICROBIAL BIOTECHNOLOGY, 5(3), 396–402.
Vancouver
1.
De Gusseme B, Soetaert M, Hennebel T, Vanhaecke L, Boon N, Verstraete W. Catalytic dechlorination of diclofenac by biogenic palladium in a microbial electrolysis cell. Boon N, Verstraete W, editors. MICROBIAL BIOTECHNOLOGY. 2012;5(3):396–402.
MLA
De Gusseme, Bart, Maarten Soetaert, Tom Hennebel, et al. “Catalytic Dechlorination of Diclofenac by Biogenic Palladium in a Microbial Electrolysis Cell.” Ed. Nico Boon & Willy Verstraete. MICROBIAL BIOTECHNOLOGY 5.3 (2012): 396–402. Print.