Metagenomic analysis of ethylene glycol contamination in anaerobic digestion.
Batch fermentation
Biogas
Ethylene glycol
Microbiome
RNG
Journal
Bioresource technology
ISSN: 1873-2976
Titre abrégé: Bioresour Technol
Pays: England
ID NLM: 9889523
Informations de publication
Date de publication:
Nov 2023
Nov 2023
Historique:
received:
13
06
2023
revised:
11
08
2023
accepted:
12
08
2023
medline:
11
9
2023
pubmed:
20
8
2023
entrez:
19
8
2023
Statut:
ppublish
Résumé
Anaerobic digestion is an established method for the biological conversion of waste feedstocks to biogas and biomethane. While anaerobic digestion is an excellent waste management technique, it can be susceptible to toxins and pollutants from contaminated feedstocks, which may have a detrimental impact on a digester's efficiency and productivity. Ethylene glycol (EG) is readily used in the heat-transfer loops of anaerobic digestion facilities to maintain reactor temperature. Failure of the structural integrity of these heat transfer loops can cause EG to leak into the digester, potentially causing a decrease in the resultant gas yields. Batch fermentations were incubated with 0, 10, 100 and 500 ppm (parts per million) of EG, and analysis showed that the EG was completely metabolised by the digester microbiome. The concentrations of EG tested showed significant increases in gas yields, however there were no significant changes to the digester microbiome.
Identifiants
pubmed: 37597572
pii: S0960-8524(23)01111-2
doi: 10.1016/j.biortech.2023.129683
pii:
doi:
Substances chimiques
Biofuels
0
Ethylene Glycols
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
129683Informations de copyright
Copyright © 2023 The Author(s). Published by Elsevier Ltd.. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.