Comparative analysis of composting versus biogas production as organic waste management in Finland
Akter, Mst Farhana (2025)
Kandidaatintyö
Akter, Mst Farhana
2025
School of Energy Systems, Ympäristötekniikka
Kaikki oikeudet pidätetään.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2025052654569
https://urn.fi/URN:NBN:fi-fe2025052654569
Tiivistelmä
This thesis compares anaerobic digestion and composting for managing organic waste, with a focus on their applicability in the Finnish context. Both methods are evaluated in terms of its effect on the environment, sustainability, and practical applicability in Finland. While composting, an aerobic process, improves soil fertility and decreases landfill trash, there is significant loss of nitrogen and release of greenhouse gases. Anaerobic digestion, however, produces biogas in an oxygen-free environment, reducing methane emissions and producing a renewable energy source. While both anaerobic digestion and composting can face challenges with operation in cold zones, technological and process management developments have enabled their effective use in Finland. The thesis concludes that Finland could achieve its national recycling and carbon neutrality goals by optimizing the efficiency and sustainability of organic waste management through the integration of both processes, supported by technology advancement and legislation. Future developments should concentrate on combining the two approaches to enhance waste management efficiency and investigating new technologies to maximize AD performance in Finnish conditions.