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Title: Effect of seasonal changes in quantities of biowaste on full scale anaerobic digester performance

Abstract

A 750,000 l digester located in Roppen/Austria was studied over a 2-year period. The concentrations and amounts of CH{sub 4}, H{sub 2}, CO{sub 2} and H{sub 2}S and several other process parameters like temperature, retention time, dry weight and input of substrate were registered continuously. On a weekly scale the pH and the concentrations of NH{sub 4}{sup +}-N and volatile fatty acids (acetic, butyric, iso-butyric, propionic, valeric and iso-valeric acid) were measured. The data show a similar pattern of seasonal gas production over 2 years of monitoring. The consumption of VFA and not the hydrogenotrophic CH{sub 4} production appeared to be the limiting factor for the investigated digestion process. Whereas the changes in pH and the concentrations of most VFA did not correspond with changes in biogas production, the ratio of acetic to propionic acid and the concentration of H{sub 2} appeared to be useful indicators for reactor performance. However, the most influential factors for the anaerobic digestion process were the amount and the quality of input material, which distinctly changed throughout the year.

Authors:
 [1]
  1. Abfallbeseitigungsverband Westtirol, Breite Mure, A-6426 Roppen (Austria)
Publication Date:
OSTI Identifier:
21215958
Resource Type:
Journal Article
Journal Name:
Waste Management
Additional Journal Information:
Journal Volume: 29; Journal Issue: 1; Other Information: DOI: 10.1016/j.wasman.2008.02.005; PII: S0956-053X(08)00062-7; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0956-053X
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; ANAEROBIC DIGESTION; BIOLOGICAL WASTES; CARBON DIOXIDE; METHANE; PROPIONIC ACID

Citation Formats

Illmer, P., and Gstraunthaler, G. Effect of seasonal changes in quantities of biowaste on full scale anaerobic digester performance. United States: N. p., 2009. Web. doi:10.1016/j.wasman.2008.02.005.
Illmer, P., & Gstraunthaler, G. Effect of seasonal changes in quantities of biowaste on full scale anaerobic digester performance. United States. https://doi.org/10.1016/j.wasman.2008.02.005
Illmer, P., and Gstraunthaler, G. Thu . "Effect of seasonal changes in quantities of biowaste on full scale anaerobic digester performance". United States. https://doi.org/10.1016/j.wasman.2008.02.005.
@article{osti_21215958,
title = {Effect of seasonal changes in quantities of biowaste on full scale anaerobic digester performance},
author = {Illmer, P. and Gstraunthaler, G},
abstractNote = {A 750,000 l digester located in Roppen/Austria was studied over a 2-year period. The concentrations and amounts of CH{sub 4}, H{sub 2}, CO{sub 2} and H{sub 2}S and several other process parameters like temperature, retention time, dry weight and input of substrate were registered continuously. On a weekly scale the pH and the concentrations of NH{sub 4}{sup +}-N and volatile fatty acids (acetic, butyric, iso-butyric, propionic, valeric and iso-valeric acid) were measured. The data show a similar pattern of seasonal gas production over 2 years of monitoring. The consumption of VFA and not the hydrogenotrophic CH{sub 4} production appeared to be the limiting factor for the investigated digestion process. Whereas the changes in pH and the concentrations of most VFA did not correspond with changes in biogas production, the ratio of acetic to propionic acid and the concentration of H{sub 2} appeared to be useful indicators for reactor performance. However, the most influential factors for the anaerobic digestion process were the amount and the quality of input material, which distinctly changed throughout the year.},
doi = {10.1016/j.wasman.2008.02.005},
url = {https://www.osti.gov/biblio/21215958}, journal = {Waste Management},
issn = {0956-053X},
number = 1,
volume = 29,
place = {United States},
year = {2009},
month = {1}
}