Optimization of urban waste fermentation for volatile fatty acids production.

Bioreactors Fatty Acids, Volatile Fermentation Refuse Disposal Sewage Wastewater
Anaerobic fermentation Biorefinery Organic fraction of municipal solid waste (OFMSW) Volatile Fatty Acid (VFA) Waste Activated Sludge (WAS)

Journal

Waste management (New York, N.Y.)
ISSN: 1879-2456
Titre abrégé: Waste Manag
Pays: United States
ID NLM: 9884362

Informations de publication

Date de publication:
01 Jun 2019
Historique:
received: 03 02 2019
revised: 25 03 2019
accepted: 05 05 2019
entrez: 5 6 2019
pubmed: 5 6 2019
medline: 13 9 2019
Statut: ppublish

Résumé

The problem of waste disposal has recently focused on practices for waste recycling and bio-resources valorization. Organic waste produced in urban context together with biological sludge produced in wastewater treatment plants (WWTPs) can be used as renewable feedstock for the production of building blocks of different products, from biopolymers to methyl esters. This paper deals with the optimization of the fermentation process in order to transform urban organic waste (a mixture of pre-treated food waste and biological sludge) into added-value volatile fatty acid (VFA) rich stream, useful for biological processes within a biorefinery technology chain. Different temperatures, pH, hydraulic retention times (HRTs) and organic loading rates (OLRs) were tested both in batch and continuous trials. Batch tests showed the best working conditions at 37 °C and pH 9, using the bio-waste feedstock thermally pre-treated (76 h at 72 °C). These conditions were applied in continuous process, where higher HRT (6.0 d) and lower OLR [7.7 kg VS/(m

Identifiants

DOI: 10.1016/j.wasman.2019.05.010 PMID: 31160023
pubmed: 31160023
pii: S0956-053X(19)30302-2
doi: 10.1016/j.wasman.2019.05.010
pii:
doi:

Substances chimiques

Fatty Acids, Volatile 0
Sewage 0
Waste Water 0

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

21-29

Informations de copyright

Copyright © 2019 Elsevier Ltd. All rights reserved.

Auteurs

Giulia Moretto (G)

Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Dorsoduro 3246, 30123 Venice, Italy.

Francesco Valentino (F)

Department of Chemistry, La Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy. Electronic address: francesco.valentino@uniroma1.it.

Paolo Pavan (P)

Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Dorsoduro 3246, 30123 Venice, Italy.

Mauro Majone (M)

Department of Chemistry, La Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy.

David Bolzonella (D)

Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy.

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Classifications MeSH

questionsmedicales.fr › Technologie, industrie et agriculture › Technologie › Biotechnologie › Bioréacteurs › Optimization of urban waste fermentation for...
questionsmedicales.fr › Lipides › Acides gras › Acides gras volatils › Optimization of urban waste fermentation for...
questionsmedicales.fr › Métabolisme › Métabolisme glucidique › Fermentation › Optimization of urban waste fermentation for...
questionsmedicales.fr › Environnement et santé publique › Santé publique › Amélioration du niveau sanitaire › Génie sanitaire › Gestion des déchets › Élimination des déchets › Optimization of urban waste fermentation for...
questionsmedicales.fr › Mélanges complexes › Eaux d'égout › Optimization of urban waste fermentation for...
questionsmedicales.fr › Environnement et santé publique › Santé publique › Pollution de l'environnement › Déchets › Eaux usées › Optimization of urban waste fermentation for...