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Biogas Production Potential from Economically Usable Green Waste

Author

Listed:
  • Daniel Pick

    () (University of Freiburg, Zentrum für Erneuerbare Energien, Tennenbacherstr. 4, Freiburg 79106, Germany)

  • Martin Dieterich

    () (Institut for Landscape and Vegetation Ecology, University of Hohenheim, August-von-Hartmann-Str. 3, Stuttgart 70599, Germany)

  • Sebastian Heintschel

    () (Institut for Landscape and Vegetation Ecology, University of Hohenheim, August-von-Hartmann-Str. 3, Stuttgart 70599, Germany)

Abstract

Biomass production for energy purposes on agricultural land competes with food production. This is a serious problem, considering the limited availability of farmland, rising demand for varied food products, demand for more organic crop production resulting in considerably reduced yields per area and the need for more environmentally sound agricultural practices meeting long-term sustainability criteria. Residual land currently not used for agricultural production has been considered a promising resource, but in terms of potentials, difficult to estimate for biomass for use in the energy sector. Biomass potentials associated with “green waste” from residual grasslands were assessed for Schwäbisch Hall County in the Federal State of Baden-Württemberg, Germany. Roadside edges, conservation grasslands subject to low intensity use (landscape maintenance sites), riparian stretches along ditches and streams, and municipal green spaces (public lawns, parks and sports fields) were the area types considered. Data for biomass and biogas yields were either determined through a sampling program or obtained from the literature and through interviews with experts. In an iterative process and distinguishing between theoretical, technical and realized (economic) potentials, unsuitable areas and fractions were subtracted from the theoretical potentials. Theoretical potentials for Schwäbisch Hall County were originally estimated at 21 million m 3 of biogas. The results of the investigation suggest that a very high percentage of the theoretical residual biomass potential cannot be accessed due to various technical, legal, ecological or management (economic) constraints. In fact, in the end, only municipal lawns and green spaces were found to provide suitable substrates. Current use of residual biomass in the model communities did not exceed 0.4% of the theoretical potentials. Provided all residual biomass available under current management practices could be accessed, this would amount to 6.1% of the theoretical maximum potentials.

Suggested Citation

  • Daniel Pick & Martin Dieterich & Sebastian Heintschel, 2012. "Biogas Production Potential from Economically Usable Green Waste," Sustainability, MDPI, Open Access Journal, vol. 4(4), pages 1-21, April.
  • Handle: RePEc:gam:jsusta:v:4:y:2012:i:4:p:682-702:d:17264
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    Citations

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    Cited by:

    1. Meike Nitsche & Frank Hensgen & Michael Wachendorf, 2017. "Using Grass Cuttings from Sports Fields for Anaerobic Digestion and Combustion," Energies, MDPI, Open Access Journal, vol. 10(3), pages 1-11, March.

    More about this item

    Keywords

    green waste; biogas production; technical; economic and ecological potentials; municipal green spaces; survey methods; biogas yields;

    JEL classification:

    • Q - Agricultural and Natural Resource Economics; Environmental and Ecological Economics
    • Q0 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - General
    • Q2 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation
    • Q3 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Nonrenewable Resources and Conservation
    • Q5 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics
    • Q56 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environment and Development; Environment and Trade; Sustainability; Environmental Accounts and Accounting; Environmental Equity; Population Growth
    • O13 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Agriculture; Natural Resources; Environment; Other Primary Products

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