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Method for determination of methane potentials of solid organic waste

Hansen, TL; Schmidt, JE; Angelidaki, I; Marca, E; la Cour Jansen, Jes LU ; Mosbaek, H and Christensen, TH (2004) In Waste Management 24(4). p.393-400
Abstract
A laboratory procedure is described for measuring methane potentials of organic solid waste. Triplicate reactors with 10 grams of volatile solids were incubated at 55 degreesC with 400 ml of inoculum from a thermophilic biogas plant and the methane production was followed over a 50-day period by regular measurements of methane on a gas chromatograph. The procedure involves blanks as well as cellulose controls. Methane potentials have been measured for source-separated organic household waste and for individual waste materials. The procedure has been evaluated regarding practicality, workload, detection limit, repeatability and reproducibility as well as quality control procedures. For the source-separated organic household waste a methane... (More)
A laboratory procedure is described for measuring methane potentials of organic solid waste. Triplicate reactors with 10 grams of volatile solids were incubated at 55 degreesC with 400 ml of inoculum from a thermophilic biogas plant and the methane production was followed over a 50-day period by regular measurements of methane on a gas chromatograph. The procedure involves blanks as well as cellulose controls. Methane potentials have been measured for source-separated organic household waste and for individual waste materials. The procedure has been evaluated regarding practicality, workload, detection limit, repeatability and reproducibility as well as quality control procedures. For the source-separated organic household waste a methane potential of 495 ml CH4/g VS was found. For fat and oil a lag-phase of several days was seen. The protein sample was clearly inhibited and the maximal methane potential was therefore not achieved. For paper bags, starch and glucose 63, 84 and 94% of the theoretical methane potential was achieved respectively. A detection limit of 72.5 ml CH4/g VS was calculated from the results. This is acceptable, since the methane potential of the tested waste materials was in the range of 200-500 ml CH4/g VS. The determination of methane potentials is a biological method subject to relatively large variation due to the use of non-standardized inoculum and waste heterogeneity. Therefore, procedures for addressing repeatability and reproducibility are suggested. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
characterization, organic waste, methane, biogas, laboratory measurement
in
Waste Management
volume
24
issue
4
pages
393 - 400
publisher
Elsevier
external identifiers
  • wos:000221096900011
  • pmid:15081067
  • scopus:1842665767
ISSN
1879-2456
DOI
10.1016/j.wasman.2003.09.009
language
English
LU publication?
yes
id
f5056edf-8bbc-46d6-bc07-cddf1e8109d9 (old id 280060)
date added to LUP
2007-10-22 14:29:58
date last changed
2017-12-10 04:38:45
@article{f5056edf-8bbc-46d6-bc07-cddf1e8109d9,
  abstract     = {A laboratory procedure is described for measuring methane potentials of organic solid waste. Triplicate reactors with 10 grams of volatile solids were incubated at 55 degreesC with 400 ml of inoculum from a thermophilic biogas plant and the methane production was followed over a 50-day period by regular measurements of methane on a gas chromatograph. The procedure involves blanks as well as cellulose controls. Methane potentials have been measured for source-separated organic household waste and for individual waste materials. The procedure has been evaluated regarding practicality, workload, detection limit, repeatability and reproducibility as well as quality control procedures. For the source-separated organic household waste a methane potential of 495 ml CH4/g VS was found. For fat and oil a lag-phase of several days was seen. The protein sample was clearly inhibited and the maximal methane potential was therefore not achieved. For paper bags, starch and glucose 63, 84 and 94% of the theoretical methane potential was achieved respectively. A detection limit of 72.5 ml CH4/g VS was calculated from the results. This is acceptable, since the methane potential of the tested waste materials was in the range of 200-500 ml CH4/g VS. The determination of methane potentials is a biological method subject to relatively large variation due to the use of non-standardized inoculum and waste heterogeneity. Therefore, procedures for addressing repeatability and reproducibility are suggested.},
  author       = {Hansen, TL and Schmidt, JE and Angelidaki, I and Marca, E and la Cour Jansen, Jes and Mosbaek, H and Christensen, TH},
  issn         = {1879-2456},
  keyword      = {characterization,organic waste,methane,biogas,laboratory measurement},
  language     = {eng},
  number       = {4},
  pages        = {393--400},
  publisher    = {Elsevier},
  series       = {Waste Management},
  title        = {Method for determination of methane potentials of solid organic waste},
  url          = {http://dx.doi.org/10.1016/j.wasman.2003.09.009},
  volume       = {24},
  year         = {2004},
}