Title:
Co-Digestion of Various Biomasses for Biogas Production
Author(s):
Dubrovskis, V., Kotelenecs, V., Celms, A., Zabarovskis, E.
Document(s):
Paper
Poster
Abstract:
More than 30 biogas plants started working in recent time in Latvia. There is need to investigate the suitability of various biomasses for energy production. This paper shows results from the co-digestion of waste water sludge with milk processing whey and different plant biomasses. The co-digestion process was investigated for biogas production in 50 l digesters, operated in continuous mode at temperature 38±1.0°C. The average methane yield per unit of dry organic matter added (DOM) from co-digestion with fresh willow was 126.9 l·kgDOM-1 and the average methane (CH4) content was 52,87%. The average methane yield from co-digestion with barley straw was 284,44 l·kgDOM-1 and the average methane content was 61,47%. Average methane yield per unit of dry organic matter added from co-digestion with maize silage was 304,49 l·kgDOM-1 and average methane content was 55,1%. Average methane yield from co-digestion with rye grass silage was 283,1 l·kgDOM-1 and average methane content was 52,49%. All investigated wastes and plants can be successfully cultivated for energy production under agro ecological conditions in Latvia.
Keywords:
anaerobic digestion, biogas, methane, sludge, agricultural wastes, whey
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Anaerobic digestion for biogas production
Event:
21st European Biomass Conference and Exhibition
Session:
2DV.4.21
Pages:
1246 - 1255
ISBN:
978-88-89407-53-0
Paper DOI:
10.5071/21stEUBCE2013-2DV.4.21
Price:
FREE
