Applying potentials to conductive materials impairs High-loading anaerobic digestion performance by affecting direct interspecies electron transfer.

Anaerobiosis Bioreactors Electron Transport Electrons Methane
Anaerobic digestion Applied potential Direct interspecies electron transfer Methanogenesis Microbial electrolysis cell

Journal

Bioresource technology
ISSN: 1873-2976
Titre abrégé: Bioresour Technol
Pays: England
ID NLM: 9889523

Informations de publication

Date de publication:
Feb 2020
Historique:
received: 08 09 2019
revised: 10 11 2019
accepted: 12 11 2019
pubmed: 27 11 2019
medline: 7 1 2020
entrez: 27 11 2019
Statut: ppublish

Résumé

In order to illustrate the impact that application of positive or negative potential to conductive materials can have on direct interspecies electron transfer (DIET) and reactor performance under high organic loading rates, three continuous laboratory-scale reactors with carbon-cloth electrodes poised at +0.7 V, -0.7 V (vs. Ag/AgCl) and no-potential were fed high concentrations of ethanol wastewater. While exoelectrogens and methanogens that are capable of DIET were significantly enriched in poised reactors, they performed worse than the non-current control. Volatile fatty acids (VFAs) accumulated more rapidly in the positively then negatively poised reactor, but neither could withstand high-loading rates. These results demonstrate that applying potential to conductive materials had a negative effect on anaerobic digestion under high-loading conditions.

Identifiants

DOI: 10.1016/j.biortech.2019.122422 PMID: 31767427
pubmed: 31767427
pii: S0960-8524(19)31652-9
doi: 10.1016/j.biortech.2019.122422
pii:
doi:

Substances chimiques

Methane OP0UW79H66

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

122422

Informations de copyright

Copyright © 2019 Elsevier Ltd. All rights reserved.

Auteurs

Xinying Liu (X)

College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing, 100083, China.

Qian Chen (Q)

College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing, 100083, China.

Dezhi Sun (D)

College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China.

Yumingzi Wang (Y)

College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China.

He Dong (H)

College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China.

Yan Dang (Y)

College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China. Electronic address: yandang@bjfu.edu.cn.

Dawn E Holmes (DE)

Department of Physical and Biological Sciences, Western New England University, 1215 Wilbraham Rd, Springfield, MA 01119, United States.

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Classifications MeSH

questionsmedicales.fr › Métabolisme › Anaérobiose › Applying potentials to conductive materials...
questionsmedicales.fr › Technologie, industrie et agriculture › Technologie › Biotechnologie › Bioréacteurs › Applying potentials to conductive materials...
questionsmedicales.fr › Métabolisme › Voies et réseaux métaboliques › Transport d'électrons › Applying potentials to conductive materials...
questionsmedicales.fr › Phénomènes physiques › Phénomènes magnétiques › Phénomènes électromagnétiques › Électrons › Applying potentials to conductive materials...
questionsmedicales.fr › Composés chimiques organiques › Hydrocarbures › Hydrocarbures acycliques › Alcanes › Méthane › Applying potentials to conductive materials...