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Twelve European habitat types were investigated to determine the influence of the IFBB technique (integrated generation of biogas and solid fuel from biomass) on the fate of organic compounds and energy yields of semi-natural grassland biomass. Concentration of organic compounds in silage and IFBB press cake (PC), mass flows within that system and methane yields of IFBB press fluids (PF) were determined. The gross energy yield of the IFBB technique was calculated in comparison to hay combustion (HC) and whole crop digestion (WCD). The IFBB treatment increased fibre and organic matter (OM) concentrations and lowered non-fibre carbohydrates and crude protein concentrations. The PF was highly digestible irrespective of habitat types, showing mean methane yields between 312.1 and 405.0 LN CH4 kg−1 VS. Gross energy yields for the IFBB system (9.75–30.19 MWh ha−1) were in the range of HC, outperformed WCD and were influenced by the habitat type.
- Semi-natural grassland
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- Faculty of Earth and Life Sciences, Institute of Biological, Environmental & Rural Sciences (IBERS) - Professor, Head of Department - Biological Environmental and Rural Sciences
Person: Teaching And Research