Reduced nitrogen emissions from digestate with application of marble "Marmorfiks"
Grounded marble, a residual product from supply industry for printing paper, may reduce odour and N-emissions from manure and digestates. Marble will be tested in field and lab experiments at Tingvoll during 2016.
Testanlegg for biogass. (Photo: Anita Land)
Anaerobic digestion plants are increasing in Norway, and the Tingvoll farm biogas plant has been utilised for several R&D projects. Digested animal manure, household organic wastes or other organic materials is a fertiliser with high contents of mineral nitrogen. Such nitrogen is easily available for plant growth, but may also easily be emitted by application in field. Former studies have shown that addition of grounded marble to animal manure may reduce odour and N-emissions. The aim of MARMORFIKS (“Marble-fix”) is to study if grounded marble added to digested and non-digested slurry can increase the yields of grass-clover ley, as compared with digestate and non-digested slurry without marble addition.
Project Details
Project details
| Project coordinator: | Anne-Kristin Løes |
|---|---|
| Project staff NORSØK: | Reidun Pommeresche |
| Project partners: | SINTEF Energi, NIBIO avd. for Bioressurser, NMBU, Norwegian University of life science, Institutet för jordbruks-och miljöteknik (JTI), Sverige, Omya Hustadmarmor, Aukra næringsforum and Ecopro biogassanlegg |
| Funding: | Regional Research Fund for Mid-Norway, Onya Hustadmarmor, Aukra næringsforum, Ecopro, Møre og Romsdal fylkeskommune |
| Project period: |
