The accumulation of volatile fatty acids and phenols through a pH-controlled fermentation of olive mill solid waste.
Acidic conditions
Alkaline conditions
Anaerobic digestion
Hydrolysis
Methanogenesis
Journal
The Science of the total environment
ISSN: 1879-1026
Titre abrégé: Sci Total Environ
Pays: Netherlands
ID NLM: 0330500
Informations de publication
Date de publication:
20 Mar 2019
20 Mar 2019
Historique:
received:
10
09
2018
revised:
23
11
2018
accepted:
09
12
2018
entrez:
26
1
2019
pubmed:
27
1
2019
medline:
20
2
2019
Statut:
ppublish
Résumé
This work aims to compare the use of olive mill solid waste as substrate in pH-controlled fermentation at acid (pH = 5), neutral (uncontrolled, pH ≈ 7) and alkaline (pH = 9) operating pH levels. The results obtained in this study indicate that operating pH strongly affected the anaerobic microorganisms and, hence, different target compounds could be obtained by adjusting the operating pH. Fermentation at neutral pH resulted in the conversion of 93.5% of the fed chemical oxygen demand to methane. However, fermentations at pH 5 and 9 resulted in the inhibition of the methanogenic activity. At pH 9, volatile fatty acids reached a maximum concentration of 3.69 g O
Identifiants
pubmed: 30677916
pii: S0048-9697(18)34969-6
doi: 10.1016/j.scitotenv.2018.12.124
pii:
doi:
Substances chimiques
Fatty Acids, Volatile
0
Olive Oil
0
Phenols
0
Solid Waste
0
Methane
OP0UW79H66
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1501-1507Informations de copyright
Copyright © 2018 Elsevier B.V. All rights reserved.