Biogas production from fresh maize biomass
2010
Dubrovskis, V., Latvia Univ. of Agriculture, Jelgava (Latvia) | Plume, I., Latvia Univ. of Agriculture, Jelgava (Latvia) | Bartusevics, J., Latvia Univ. of Agriculture, Jelgava (Latvia) | Kotelenecs, V., Latvia Univ. of Agriculture, Jelgava (Latvia)
There is a need to find acceptable energy crops for biogas production for the climatic and soil conditions in Latvia. The average annual dry matter yields from maize vary from 12 to 16 t•haE-1 under the climatic conditions in Latvia. Biogas yield from fresh maize biomass was investigated in dependence on the harvesting time of maize. The maize varieties Tango and Celido were harvested in September 8, September 20 and October 8. For biogas investigations 6 laboratory ferments of 5 litres volume, operating in batch mode were used. Green maize biomass was mixed with water and animal manure for enhanced anaerobic treatment process. The biogas yield from biomass samples varies from 476 l•kgVOSE-1 to 570 l•kgVOSE-1. There were not verifiable advantages in volumes of biogas between the samples harvested in different periods found. The average methane content was in the range from 49.6 % to 59.3 % in biogas from different samples of maize biomass.
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