Document Detail


Co-digestion of press water and food waste in a biowaste digester for improvement of biogas production.
MedLine Citation:
PMID:  20400298     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Co-digestion of press water from organic municipal wastes and of homogenized food residues with defibered kitchen wastes (food waste) as the main substrate was examined to improve biogas production. Although the biowaste digester was operated already at high organic loading (OLR) of 12.3 kg CODm(-3)d(-1) during the week, addition of co-substrates not only increased biogas production rates but also improved total biogas production. By feeding the two co-substrates up to 20 kg CODm(-3)d(-1) gas production followed the increasing OLR linearly. When the OLR was further increased with food waste, not more gas than for 20 kg CODm(-3)d(-1) OLR was obtained, indicating the maximum metabolic capabilities of the microbes. During weekends (no biowaste available) food waste could substitute for biowaste to maintain biogas production. Addition of press water or food waste to biowaste co-digestion resulted in more buffer capacity, allowing very high loadings without pH control.
Authors:
Satoto E Nayono; Claudia Gallert; Josef Winter
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-04-18
Journal Detail:
Title:  Bioresource technology     Volume:  101     ISSN:  1873-2976     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-05-31     Completed Date:  2010-09-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  6998-7004     Citation Subset:  IM    
Copyright Information:
Copyright 2010 Elsevier Ltd. All rights reserved.
Affiliation:
Department of Civil Engineering, Yogyakarta State University, Campus UNY Karangmalang, Yogyakarta 55281, Indonesia.
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MeSH Terms
Descriptor/Qualifier:
Bacteria, Anaerobic / physiology*
Food Microbiology*
Industrial Waste / prevention & control*
Methane / metabolism*
Water Microbiology*
Water Pollutants, Chemical / metabolism*
Water Purification / methods*
Chemical
Reg. No./Substance:
0/Industrial Waste; 0/Water Pollutants, Chemical; 74-82-8/Methane

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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