Title:
Co-fermentation of Various Biomasses for Biogas Production
Author(s):
Dubrovskis, V., Kotelenecs, V., Celms, A., Zabarovskis, E.
Document(s):
Paper
Abstract:
More than 20 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-fermentation of waste water sludge with milk processing whey and different plant biomasses. The co-fermentation 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-fermentation with fresh grass was 287.57 l•kgDOM -1 and the average methane (CH4) content was 63,7%. The average methane yield from co-fermentation with Baltic sea algae was 96,41 l•kgDOM -1 and the average methane content was 54,1%. Average methane yield per unit of dry organic matter added (DOM) from co-fermentation with sunflower silage was 247 l•kgDOM -1 and average methane (CH4) content was 59.39%. Average methane yield from co-fermentation with falled leaves of trees was 260.83 l•kgDOM -1 and average methane content was 64.17%. All investigated wastes and plants except algae 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:
20th European Biomass Conference and Exhibition
Session:
2DV.3.17
Pages:
1434 - 1443
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-2DV.3.17
Price:
FREE
