Fog, Erik; Sørensen, Peter; Pedersen, Søren O.; Meng, Xiaoyi; Knudsen, Marie Trydeman and Møller, Henrik B. (2023) Grass-clover and biogas fertilizers as a climate efficient nutrient supply. [Kløvergræs og biogasgødning som klimaeffektiv næringsstofforsyning.] Speech at: AgriFood & Climate Circle, Copenhagen, 11 May 2023.
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Summary
There is a need to take care of the nutrients in the system.
Anaerobic digestion is a valuable way to convert the nutrients and produce renewable energy.
A model is presented that use grass-clover as feedstock for anaerobic digestion and separate the digestate in 3 fractions.
Anaerobic digestion and separation have positive effect on N2O-emissions. But a very dilute solution of ammonia and sulfur generated high emissions when applied to the soil with 100 kg N per hectare.
Summary translation
Der er brug for at tage vare på næringsstofferne i systemet.
Omsætning i biogasanlæg er en værdifuld måde at omdanne næringsstofferne og samtidig producere vedvarende energi.
En model er præsenteret, hvor kløvergræs bruges til biogas og den afgassede gødning separeres i tre fraktioner.
Afgasning og separation reducerede lattergasudledningen. Men en meget tynd opløsning af ammonium og svovl gav høje udledninger, når det blev tilført med 100 kg. N per ha.
| EPrint Type: | Conference paper, poster, etc. |
|---|---|
| Type of presentation: | Speech |
| Keywords: | fertilizer, climate, biogas |
| Agrovoc keywords: | Language Value URI English biogas http://aims.fao.org/aos/agrovoc/c_9262 English fertilizers http://aims.fao.org/aos/agrovoc/c_2867 English separation -> separating http://aims.fao.org/aos/agrovoc/c_6973 English nitrous oxide http://aims.fao.org/aos/agrovoc/c_12838 |
| Subjects: | Environmental aspects > Air and water emissions Farming Systems > Farm nutrient management |
| Research affiliation: | Denmark > Organic RDD 4 > ClimOptic |
| Deposited By: | Fog, Mr. Erik |
| ID Code: | 46182 |
| Deposited On: | 07 Jul 2023 14:23 |
| Last Modified: | 07 Jul 2023 14:23 |
| Document Language: | English |
| Status: | Published |
| Refereed: | Not peer-reviewed |
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