Influence of volatile solids and pH for the production of volatile fatty acids: Batch fermentation tests using sewage sludge.
Bacterial community
Circular economy
Resource recovery from wastewater
Journal
Bioresource technology
ISSN: 1873-2976
Titre abrégé: Bioresour Technol
Pays: England
ID NLM: 9889523
Informations de publication
Date de publication:
Dec 2021
Dec 2021
Historique:
received:
30
06
2021
revised:
23
08
2021
accepted:
25
08
2021
pubmed:
19
9
2021
medline:
15
12
2021
entrez:
18
9
2021
Statut:
ppublish
Résumé
The aim of this work was to study the effect of volatile suspended solid (VSS) and pH on volatile fatty acids (VFA) production from waste activated sludge (WAS) fermentation by means of batch tests. The final goal was to gain insights to enhance VFA stream quality, with the novelty of using WAS with high sludge retention time. Results revealed that the optimum conditions to maximize VFAs and minimize nutrients and non-VFA sCOD are a VSS concentration of 5.9 g/L and initial pH adjustment to pH 10. The WAS bacterial community structures were analysed according to Next Generation Sequencing (NGS) of 16S rDNA amplicons. The results revealed changes of bacterial phyla abundance in comparison with the batch test starting condition.
Identifiants
pubmed: 34536841
pii: S0960-8524(21)01194-9
doi: 10.1016/j.biortech.2021.125853
pii:
doi:
Substances chimiques
Fatty Acids, Volatile
0
Sewage
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
125853Informations de copyright
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