• Lasse Krogh Poulsen
  • Philip Holger Lindholt Coenen
This thesis analyses the potential for the Danish dairy farming sector to reduce its environmental impacts through carbon storage, by producing biochar from pyrolysis and applying it to their soils. The analysed pyrolysis feedstocks are straw residues and digested manure. This was done through a Life Cycle Assessment, where a consequential model and a model based on the International Dairy Federation’s guidelines were modelled to test methodological differences’ impacts on LCA results. Research interviews were done to collect data and gain an understanding of the pyrolysis process and the agricultural context. The LCA showed impact reductions on global warming and respiratory inorganics for both feedstocks and modelling approaches when compared to the reference scenarios of applying the biomass directly to land without pyrolysis. The results were used in the context of a specific dairy farm to calculate the potential for reducing environmental impacts from the farm’s available biomass. To conclude, pyrolysis can be used as a tool to reduce impacts and help dairy farmers reduce their emissions, but data is still lacking due to the pyrolysis technology being new on a commercial scale
SpecialisationEnvironmental Management and Sustainability Science
Publication date1 Jun 2023
Number of pages80
External collaboratorArla Foods
no name vbn@aub.aau.dk
ID: 532583578