Short-chain fatty acids recovery from sewage sludge via acidogenic fermentation as a carbon source for denitrification: A review.
Acidogenic fermentation
Carbon source
Denitrification
Sewage sludge
Short-chain fatty acids
Journal
Bioresource technology
ISSN: 1873-2976
Titre abrégé: Bioresour Technol
Pays: England
ID NLM: 9889523
Informations de publication
Date de publication:
Sep 2020
Sep 2020
Historique:
received:
31
01
2020
revised:
19
04
2020
accepted:
21
04
2020
pubmed:
14
5
2020
medline:
10
6
2020
entrez:
14
5
2020
Statut:
ppublish
Résumé
Wastewater treatment plants face the problem of a shortage of carbon source for denitrification. Acidogenic fermentation is an effective method for recovering short-chain fatty acids (SCFAs) as a carbon source from sewage sludge. Herein, the most recent advances in SCFAs production from primary sludge and waste activated sludge are systematically summarised and discussed. New technologies and problems pertaining to the improvement in SCFAs availability in fermentation liquids, including removal of ammoniacal nitrogen and phosphate and extraction of SCFAs from fermentation liquids, are analysed and evaluated. Furthermore, studies on the use of recovered SCFAs as a carbon source for denitrification are reviewed. Based on the above summarisation and discussion, some conclusions as well as perspectives on future studies and practical applications are presented. In particular, the recovery of carbon source/bioenergy from sewage sludge must be optimised considering nutrient removal/recovery simultaneously.
Identifiants
pubmed: 32402992
pii: S0960-8524(20)30718-5
doi: 10.1016/j.biortech.2020.123446
pii:
doi:
Substances chimiques
Fatty Acids, Volatile
0
Sewage
0
Carbon
7440-44-0
Types de publication
Journal Article
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
123446Informations de copyright
Copyright © 2020 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.