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Registros recuperados: 4
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Biogas aus Festmist – eine neue Technologie zu Schließung des Nährstoff- und Energiekreislaufes auf dem landwirtschaftlichen Betrieb Organic Eprints
Schäfer, Winfried; Evers, Lars; Lehto, Marja; Sorvala, Sanna; Teye, Frederick; Granstedt, Artur.
The Biodynamic Research Institute in Järna developed at the farm Yttereneby a two phase biogas plant. The plant digests manure of dairy cattle and organic residues originating from the farm and the surrounding food processing units containing 17,7 - 19,6 % dry matter. A new technology for continuously filling and discharging the biogas reactor was developed and implemented. Digestion residues are separated into a solid fraction for composting and into a liquid fraction. The solid fraction is suitable for aerobic composting. Initial results show that anaerobic digestion and following aerobic composting of the solid fraction improves the nitrogen balance of the farm compared to mere aerobic composting. Composted biogas plant residues and effluent together...
Tipo: Conference paper, poster, etc. Palavras-chave: "Organics" in general Dairy cattle Recycling; Balancing and resource management Composting and manuring.
Ano: 2005 URL: http://orgprints.org/3459/1/3459.pdf
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Biogas plant in Järna Organic Eprints
Schäfer, Winfried; Granstedt, Artur; Evers, Lars.
The Biodynamic Research Institute in Järna developed an on-farm biogas plant integrated within the highly self-supporting farm organism, Skilleby-Yttereneby, one of the farms studied in the BERAS project. The biogas plant digests dairy cattle manure and organic residues originating from the farm and the surrounding food processing units.
Tipo: Report chapter Palavras-chave: Environmental aspects; Animal husbandry.
Ano: 2005 URL: http://orgprints.org/7041/1/ekolantbruk46.pdf
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Nutrient balance of a two-phase solid manure biogas plant Organic Eprints
Schäfer, Winfried; Evers, Lars; Lehto, Marja; Sorvala, Sanna; Teye, Frederick; Granstedt, Artur.
So called "dry fermentation" prototype plants for anaerobic digestion of organic material containing 15-50 % total solids show added advantages compared to slurry digestion plants (Hoffman 2001): Less reactor volume, less process energy, less transport capacity, less odour emissions. However on-farm dry fermentation plants are not common and rarely commercially available. Recent on-farm research (Kusch & Oechsner 2004) and prototype research (Linke 2004) show promising technical solutions for dry fermentation batch reactors on-farm. The Biodynamic Research Institute in Järna developed a two-phase on-farm biogas plant. The plant digests manure of dairy cattle and organic residues originating from the farm and the surrounding food processing units...
Tipo: Conference paper, poster, etc. Palavras-chave: Farm nutrient management; Buildings and machinery; Composting and manuring.
Ano: 2005 URL: http://orgprints.org/6542/1/nj372.pdf
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Two phase continuous digestion of solid manure on-farm: design, mass and nutrient balance Organic Eprints
Schäfer, Winfried; Evers, Lars; Lehto, Marja; Sorvala, Sanna; Teye, Frederick; Granstedt, Artur.
During the last decade some so called ‘dry fermentation’ prototype plants were developed for anaerobic digestion of organic material containing 15-50 % total solids. These plants show added advantages com-pared to slurry digestion plants: Less reactor volume, less process energy, less transport capacity, less odour emissions. However on-farm dry fermentation plants are not common and rarely commercially available. This paper reports about an innovative two phase prototype biogas plant designed for continuous digestion of solid dairy cattle manure.
Tipo: Conference paper, poster, etc. Palavras-chave: Farm nutrient management; Buildings and machinery; Composting and manuring.
Ano: 2005 URL: http://orgprints.org/6592/1/rapport2005.pdf
Registros recuperados: 4
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