TITLE

BIOGAS PRODUCTION POTENTIAL FROM AGRICULTURAL BIOMASS AND ORGANIC RESIDUES IN LATVIA

AUTHOR(S)
Dubrovskis, Vilis; Plume, Imants; Kazulis, Valters; Celms, Arvids; Kotelenecs, Vladimirs; Zabarovskis, Eduards
PUB. DATE
January 2012
SOURCE
Engineering for Rural Development - International Scientific Con;2012, Vol. 11, p566
SOURCE TYPE
Conference Paper
DOC. TYPE
Article
ABSTRACT
Biogas production from straw, leaves and algae was investigated using the number of small reactors. Biomass mixed within oculums (fermented cow manure) was investigated for biogas production in eleven digesters, operated in batch mode at temperature38 ± 1.0 °C. The investigated average specific biogas yield was 377 ± 22 l·kgVSA-1, 438 ± 67 l·kgVSA-1 and 307 ± 221 l·kgVSA-1per unit of volatile solids added (VSA). The average specific methane yield from fallen leaves of trees was 204 ± 19 l·kgVSA-1and average methane (CH4) content was 54 %. The average methane yield from chopped barley straw was 280 ± 39 l·kgVSA-1and average methane content was 64 %. The average methane yield from algal biomass from the Baltic Sea was 119 ± 62 l·kgVSA-1and average methane content was 42 %. Addition of carbon rich biomass is recommended for anaerobic fermentation of algal biomass to increase the substrates C:N ratio. All investigated biomass can be utilized for local bioenergy production in Latvia.
ACCESSION #
84294147

 

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