The establishment of a biogas plant at Pajumaito Ltd dairy farm
Ben, Simo (2023)
2023
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-202301081092
https://urn.fi/URN:NBN:fi:amk-202301081092
Tiivistelmä
This thesis aimed to determine the conditions and profitability of setting up a farm-specific biogas plant for an Eastern Finnish dairy farm. The survey included the mapping of the possible feedstocks of the biogas plant, the review of the methane production potential of the feedstocks, and the selection of the plant technology of the biogas plant. The client of the thesis is Pajumaito Ltd dairy farm.
In addition to the feedstock from the farm, cattle slurry and dry manure, and straw, beer mash from a small brewery in the nearby regions was used as feedstock in the calculations. As determined by the dry matter content of the feedstock mixture, continuous wet digestion was selected as the biogas plant technology. Biogas could be refined into electricity and heat with a CHP unit or into biomethane for use as a transport fuel, which would be a more economically viable solution for the biogas plant that is the subject of the study.
According to the profitability calculations of the thesis, despite the investment support of the Ministry of Agriculture and Forestry's rural program or the energy support of the Ministry of Economy and Labor, the biogas plant on the farm would probably not be profitable.
In the future, a possible subject of further investigation by the client could be to map the financial viability of establishing a joint biogas plant between Pajumaito Ltd and farms in the surrounding area or the use of lake reeds from the Saimaa region as feedstock in the client's biogas plant.
In addition to the feedstock from the farm, cattle slurry and dry manure, and straw, beer mash from a small brewery in the nearby regions was used as feedstock in the calculations. As determined by the dry matter content of the feedstock mixture, continuous wet digestion was selected as the biogas plant technology. Biogas could be refined into electricity and heat with a CHP unit or into biomethane for use as a transport fuel, which would be a more economically viable solution for the biogas plant that is the subject of the study.
According to the profitability calculations of the thesis, despite the investment support of the Ministry of Agriculture and Forestry's rural program or the energy support of the Ministry of Economy and Labor, the biogas plant on the farm would probably not be profitable.
In the future, a possible subject of further investigation by the client could be to map the financial viability of establishing a joint biogas plant between Pajumaito Ltd and farms in the surrounding area or the use of lake reeds from the Saimaa region as feedstock in the client's biogas plant.