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Evaluation of Integrated Anaerobic Digestion and Hydrothermal Carbonization for Bioenergy Production
Published on: June 15, 2014
Co-ensiling of straw with sugar beet leaves increases the methane yield from straw
Søren Ugilt Larsen1, Kurt Hjort-Gregersen1, Ali Heidarzadeh Vazifehkhoran2
1Danish Technological Institute, Agro Food Park 15, DK-8200 Aarhus N, Denmark.
Abstract:
This study examined the effect of co-ensiling of wheat straw and sugar beet leaves on the biochemical methane potential (BMP) by both lab-scale and pilot-scale co-ensiling. BMP was increased by co-ensiling, and the increase ranged from 19 to 34% after 9months of co-ensiling in lab-scale and from 18 to 32% after 6months of co-ensiling in pilot-scale. No effluent run-off was found through pilot-scale co-ensiling and there was a mass loss of only 0.1%. The study demonstrates that co-ensiling of straw and green biomass has potential as biological pretreatment and for avoiding effluent run-off from pure beet leave silage.
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