Ultrasound-controlled acidogenic valorization of wastewater for biohydrogen and volatile fatty acids production: Microbial community profiling.
Applied microbiology
Biological waste treatment
Biotechnology
Journal
iScience
ISSN: 2589-0042
Titre abrégé: iScience
Pays: United States
ID NLM: 101724038
Informations de publication
Date de publication:
21 Apr 2023
21 Apr 2023
Historique:
received:
04
12
2022
revised:
03
01
2023
accepted:
27
03
2023
medline:
27
4
2023
pubmed:
27
4
2023
entrez:
27
4
2023
Statut:
epublish
Résumé
The present study explored the influence of ultrasound on acidogenic fermentation of wastewater for the production of biohydrogen and volatile fatty acids/carboxylic acids. Eight sono-bioreactors underwent ultrasound (20 kHz: 2W and 4W), with an ultrasound duration ranging from 15 min to 30 days, and the formation of acidogenic metabolites. Long-term continuous ultrasonication enhanced biohydrogen and volatile fatty acid production. Specifically, ultrasonication at 4W for 30 days increased biohydrogen production by 3.05-fold compared to the control, corresponding to hydrogen conversion efficiency of 58.4%; enhanced volatile fatty acid production by 2.49-fold; and increased acidification to 76.43%. The observed effect of ultrasound was linked to enrichment with hydrogen-producing acidogens such as
Identifiants
pubmed: 37102152
doi: 10.1016/j.isci.2023.106519
pii: S2589-0042(23)00596-5
pmc: PMC10123347
doi:
Types de publication
Journal Article
Langues
eng
Pagination
106519Informations de copyright
© 2023 The Author(s).
Déclaration de conflit d'intérêts
The authors declare no competing interests.
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