Title:
Anaerobic Digestion of Energy Beets
Author(s):
Dubrovskis, V., Plume, I., Vinters, J.
Document(s):
Paper
Poster
Abstract:
More than 50 biogas plants started working since year 2009 in Latvia. There is the need to investigate the suitability of various biomasses for energy production. Maize is the dominating crop for biogas production in Latvia, but recent decisions diminished government’s support for its cultivation for biogas production. The cultivation of more varied crops with good economics and low environmental impact is thus desirable. One of the highest biogas yield in Germany conditions was obtained from energy beets. This paper shows the results from anaerobic digestion of energy beets variety Gerty grown in Latvia. The digestion process was investigated for biogas production in sixteen 0.75 l digesters, operated in batch mode at temperature 38±1.0°C. The average methane yield per unit of dry organic matter added (DOM) from coarse chopped energy beets was 0.431 l·gDOM-1 and the average methane (CH4) content was 53.4%. The methane yield from co-fermentation of energy beets and maize silage (50:50% of weight) was 0.411 l·gDOM-1 or by 6.57% higher compared to maize silage digested alone. Results show that energy beets can be successfully cultivated for energy production under agro-ecological conditions in Latvia.
Keywords:
anaerobic digestion, biogas, energy crops, methane, energy beets
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Anaerobic digestion for biogas production
Event:
25th European Biomass Conference and Exhibition
Session:
2CV.4.18
Pages:
907 - 910
ISBN:
978-88-89407-17-2
Paper DOI:
10.5071/25thEUBCE2017-2CV.4.18
Price:
FREE
