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Title: Anaerobic co-digestion of the organic fraction of municipal solid waste with FOG waste from a sewage treatment plant: Recovering a wasted methane potential and enhancing the biogas yield

Abstract

Anaerobic digestion is applied widely to treat the source collected organic fraction of municipal solid wastes (SC-OFMSW). Lipid-rich wastes are a valuable substrate for anaerobic digestion due to their high theoretical methane potential. Nevertheless, although fat, oil and grease waste from sewage treatment plants (STP-FOGW) are commonly disposed of in landfill, European legislation is aimed at encouraging more effective forms of treatment. Co-digestion of the above wastes may enhance valorisation of STP-FOGW and lead to a higher biogas yield throughout the anaerobic digestion process. In the present study, STP-FOGW was evaluated as a co-substrate in wet anaerobic digestion of SC-OFMSW under mesophilic conditions (37 {sup o}C). Batch experiments carried out at different co-digestion ratios showed an improvement in methane production related to STP-FOGW addition. A 1:7 (VS/VS) STP-FOGW:SC-OFMSW feed ratio was selected for use in performing further lab-scale studies in a 5 L continuous reactor. Biogas yield increased from 0.38 {+-} 0.02 L g VS{sub feed}{sup -1} to 0.55 {+-} 0.05 L g VS{sub feed}{sup -1} as a result of adding STP-FOGW to reactor feed. Both VS reduction values and biogas methane content were maintained and inhibition produced by long chain fatty acid (LCFA) accumulation was not observed. Recovery ofmore » a currently wasted methane potential from STP-FOGW was achieved in a co-digestion process with SC-OFMSW.« less

Authors:
 [1];  [1]; ;  [1]
  1. Departament d'Enginyeria Quimica, Universitat Autonoma de Barcelona, 08193 Bellaterra (Spain)
Publication Date:
OSTI Identifier:
21418126
Resource Type:
Journal Article
Journal Name:
Waste Management
Additional Journal Information:
Journal Volume: 30; Journal Issue: 10; Other Information: DOI: 10.1016/j.wasman.2010.03.029; PII: S0956-053X(10)00200-X; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0956-053X
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; ANAEROBIC DIGESTION; CARBOXYLIC ACIDS; LIQUID WASTES; MESOPHILIC CONDITIONS; METHANE; MUNICIPAL WASTES; SANITARY LANDFILLS; SEWAGE SLUDGE; SOLID WASTES; WASTE PROCESSING; YIELDS; ALKANES; BIOCONVERSION; BIOLOGICAL MATERIALS; BIOLOGICAL WASTES; DIGESTION; HYDROCARBONS; MANAGEMENT; MATERIALS; ORGANIC ACIDS; ORGANIC COMPOUNDS; PROCESSING; SEWAGE; SLUDGES; WASTE DISPOSAL; WASTE MANAGEMENT; WASTES

Citation Formats

Martin-Gonzalez, L, Colturato, L F, Font, X, Vicent, T, and Institut de Ciencia i Tecnologia Ambiental. Anaerobic co-digestion of the organic fraction of municipal solid waste with FOG waste from a sewage treatment plant: Recovering a wasted methane potential and enhancing the biogas yield. United States: N. p., 2010. Web. doi:10.1016/j.wasman.2010.03.029.
Martin-Gonzalez, L, Colturato, L F, Font, X, Vicent, T, & Institut de Ciencia i Tecnologia Ambiental. Anaerobic co-digestion of the organic fraction of municipal solid waste with FOG waste from a sewage treatment plant: Recovering a wasted methane potential and enhancing the biogas yield. United States. https://doi.org/10.1016/j.wasman.2010.03.029
Martin-Gonzalez, L, Colturato, L F, Font, X, Vicent, T, and Institut de Ciencia i Tecnologia Ambiental. 2010. "Anaerobic co-digestion of the organic fraction of municipal solid waste with FOG waste from a sewage treatment plant: Recovering a wasted methane potential and enhancing the biogas yield". United States. https://doi.org/10.1016/j.wasman.2010.03.029.
@article{osti_21418126,
title = {Anaerobic co-digestion of the organic fraction of municipal solid waste with FOG waste from a sewage treatment plant: Recovering a wasted methane potential and enhancing the biogas yield},
author = {Martin-Gonzalez, L and Colturato, L F and Font, X and Vicent, T and Institut de Ciencia i Tecnologia Ambiental},
abstractNote = {Anaerobic digestion is applied widely to treat the source collected organic fraction of municipal solid wastes (SC-OFMSW). Lipid-rich wastes are a valuable substrate for anaerobic digestion due to their high theoretical methane potential. Nevertheless, although fat, oil and grease waste from sewage treatment plants (STP-FOGW) are commonly disposed of in landfill, European legislation is aimed at encouraging more effective forms of treatment. Co-digestion of the above wastes may enhance valorisation of STP-FOGW and lead to a higher biogas yield throughout the anaerobic digestion process. In the present study, STP-FOGW was evaluated as a co-substrate in wet anaerobic digestion of SC-OFMSW under mesophilic conditions (37 {sup o}C). Batch experiments carried out at different co-digestion ratios showed an improvement in methane production related to STP-FOGW addition. A 1:7 (VS/VS) STP-FOGW:SC-OFMSW feed ratio was selected for use in performing further lab-scale studies in a 5 L continuous reactor. Biogas yield increased from 0.38 {+-} 0.02 L g VS{sub feed}{sup -1} to 0.55 {+-} 0.05 L g VS{sub feed}{sup -1} as a result of adding STP-FOGW to reactor feed. Both VS reduction values and biogas methane content were maintained and inhibition produced by long chain fatty acid (LCFA) accumulation was not observed. Recovery of a currently wasted methane potential from STP-FOGW was achieved in a co-digestion process with SC-OFMSW.},
doi = {10.1016/j.wasman.2010.03.029},
url = {https://www.osti.gov/biblio/21418126}, journal = {Waste Management},
issn = {0956-053X},
number = 10,
volume = 30,
place = {United States},
year = {Fri Oct 15 00:00:00 EDT 2010},
month = {Fri Oct 15 00:00:00 EDT 2010}
}