Title:
Digestate from Co-Fermentation of Maize Silage, Energy Beets and Cucumber Leaves and Stalks
Author(s):
Dubrovskis, V., Plume, I., Adamovics, A.
Document(s):
Paper
Poster
Abstract:
In Latvia, out of 48 biogas plants that use agricultural product residues and waste as raw materials, some do not use manure. Anaerobic fermentation of maize silage, energy beets Gerty and greenhouse cucumber leaves and stalks and testing of digestate usefulness were performed within the framework of the ongoing project LAD-29. The raw materials obtained from project partner were anaerobically processed in sixteen bioreactors at 38°C in a batch mode during32 days period. The obtained results showed good bioconversion of feedstock, and the specific methane 0.397 L g-1DOMwas obtained fromco-fermentation of maize silage, energy beets and cucumber residue. The result obtained in co-fermentation of biomasses was better than that obtained from each raw material separately. The digestate was mixed with wood ash and used as fertilizer for growing of several crops. Solid fraction of digestate was used for pelletization. If the dry matter of digestate was 25% - 30%, then it was possible to produce pellets for fertilization.
Keywords:
methane, digestate, anaerobic fermentation, energy beets, maizes silage
Topic:
Biomass Conversion for Bioenergy
Subtopic:
Anaerobic Digestion for Biogas and Biomethane Production
Event:
29th European Biomass Conference and Exhibition
Session:
2CV.7.7
Pages:
611 - 615
ISBN:
978-88-89407-21-9
Paper DOI:
10.5071/29thEUBCE2021-2CV.7.7
Price:
FREE
