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Manure and energy crops for biogas production

Status and barriers

image of Manure and energy crops for biogas production

This study has evaluated the development of biogas technology in three Nordic countries and analysed the effects of using nine model energy crops in biogas plants. The study compares the global warming impacts and the energy balance for the nine crops used for heat and power production. The energy balances and impacts on greenhouse gases of the studied crops differ between the countries. In Sweden and Denmark, the same crops turned out to be the most promising in terms of energy yield and impact on greenhouse gases. In general, the same crops that score high in terms of energy yield also score high in reducing the amount of greenhouse gases. Based on the examined parameters, it can be concluded that the most promising crops are Jerusalem artichoke, beets, maize, and, in Finland, reed canary grass as well.

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Conclusion

The present study has evaluated the development of biogas technology in three Nordic countries and analysed the effect of using energy crop feedstocks in biogas plants, either alone or to supplement manure.

English

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