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Quejigo, J.R. ; Dörfler, U. ; Schroll, R. ; Esteve-Núñez, A.*

Stimulating soil microorganisms for mineralizing the herbicide isoproturon by means of microbial electroremediating cells.

Microb. Biotechnol. 9, 369-380 (2016)
Verlagsversion DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
The absence of suitable terminal electron acceptors (TEA) in soil might limit the oxidative metabolism of environmental microbial populations. Microbial electroremediating cells (MERCs) consist in a variety of bioelectrochemical devices that aim to overcome electron acceptor limitation and maximize metabolic oxidation with the purpose of enhancing the biodegradation of a pollutant in the environment. The objective of this work was to use MERCs principles for stimulating soil bacteria to achieve the complete biodegradation of the herbicide (14) C-isoproturon (IPU) to (14) CO2 in soils. Our study concludes that using electrodes at a positive potential [+600 mV (versus Ag/AgCl)] enhanced the mineralization by 20-fold respect the electrode-free control. We also report an overall profile of the (14) C-IPU metabolites and a (14) C mass balance in response to the different treatments. The remarkable impact of electrodes on the microbial activity of natural communities suggests a promising future for this emerging environmental technology that we propose to name bioelectroventing.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Fuel-cells; Organic Pollutants; Contaminated Sediments; Anaerobic Degradation; Aromatic-hydrocarbons; Sandy Aquifer; Bioremediation; Metabolites; Electrode; Energy
ISSN (print) / ISBN 1751-7907
e-ISSN 1751-7915
Zeitschrift Microbial Biotechnology
Quellenangaben Band: 9, Heft: 3, Seiten: 369-380 Artikelnummer: , Supplement: ,
Verlag Wiley
Verlagsort Hoboken
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit Microbe-Plant Interactions (AMP)