Combined soil carbon sequestration and crop nutrient supply using thermal conversion technology residuals

Projekter: ProjektForskning



Mitigation of CO2 to reduce the impact of climate change requires immediate action and the involvement of several measures. However, technologies for combined energy production and residual recycling of crop nutrients and recalcitrant carbon to soils have only been developed to a limited degree. Likewise, business concepts including both energy and fertilizer production are still scarce even though countries, companies and consumers show increasing interest in intelligent whole system solutions for improved utilization of a range of biomass and waste streams.
Thermal conversion technologies are adapted to a wide range of biomass feedstocks, which do not only provide energy with high efficiency but also a valuable ash residual. The focus on ash quality and applicability has, however, been limited so far.
The overall hypothesis of the project is that the ash fraction resulting from thermal conversion can be developed into an attractive soil amendment for agricultural purposes. Blending ashes from different thermal conversion processes can furthermore be a tool to obtain a final product that provides the optimal amount of plant nutrients in an available form. Information about the fertilizer value acquired through the project will encourage the end-users (farmers) to take advantage of integrating such products into their fertilization strategies to maintain soil quality and reduce climate change impacts. In that way, the project will open a new venue for innovative energy and environmental technologies with promising new business opportunities.
Effektiv start/slut dato01/04/201331/03/2016


  • soil fertility
  • soil carbon sequestration
  • climate change
  • adaptation
  • bioenergy


  • 5 Tidsskriftartikel
  • 4 Poster
  • 3 Konferenceabstrakt til konference
  • 1 Konferencebidrag i proceedings

Phosphorus bioavailability in ash from straw and sewage sludge processed by low‐temperature biomass gasification

Bidragets oversatte titel: Phosphorus bioavailability in straw and sewage sludge ashes from low-temperature biomass gasificationMüller-Stöver, D. S., Jakobsen, I., Grønlund, M., Rolsted, M. M. M., Magid, J. & Hauggaard-Nielsen, H., 2018, I : Soil Use and Management. 34, 1, s. 9-17

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Effects of gasification biochar on plant-available water capacity and plant growth in two contrasting soil types

Bidragets oversatte titel: Effekt af tilført forgasningsbiokoks på plantetilgængeligt vandkapacitet og plante vækst i to forskellige jordtyperHansen, V., Hauggaard-Nielsen, H., Petersen, C. T., Mikkelsen, T. N. & Müller-Stöver, D. S., 2016, I : Soil & Tillage Research. 161, s. 1-9 9 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Åben adgang

Gasification biochar has limited effects on functional and structural diversity of soil microbial communities in a temperate agroecosystem

Bidragets oversatte titel: Forgasningsbiokoks har begrænset effekt på den funktionelle og strukturelle diversitet af jordens mikrobielle samfund i et tempereret agroøkosystemImparato, V., Hansen, V., Santos, S., Nielsen, T. K., Giagnoni, L., Hauggaard-Nielsen, H., Johansen, A., Renella, G. & Winding, A., 2016, I : Soil Biology & Biochemistry. 99, s. 128-136 9 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Session 61: Biokuls relevans i dansk sammenhæng: Biokul og jordens frugtbarhed

Hansen, V., Müller-Stöver, D. S., Petersen, C. T., Hauggaard-Nielsen, H., Ahrenfeldt, J. & Jensen, L. S., 2016.

Publikation: KonferencebidragKonferenceabstrakt til konferenceFormidling