engleski

Corn Silage Biological Pretreatment for Enhanced Biogas Production – Process Development

There is a great awareness about the importance of lignocellulose waste utilization in different purposes. One of the possible ways is its application for biogas production as a sole substrate or as a co-substrate. However, biofuel production from lignocellulosic material is hampered by biomass recalcitrance towards hydrolysis due to the compact architecture of the plant cell wall and the presence of lignin. In this work, biological pretreatment of corn silage obtained after the harvest 2015 (Osatina Ltd., Ivankovo, Croatia) was performed with white-rot fungus T. versicolor in laboratory flasks within 20 days with the aim of lignin degradation. Chemical composition of the corn silage was done before, during and after the fermentation process. Two different laboratory solid-state bioreactors (tray bioreactor and horizontal bioreactor with mechanical mixing) were designed and constructed based on preliminary laboratory flasks results. Biologically treated corn silage was used in biogas pilot plant in the process of anaerobic co-digestion with cow manure. Enhancement of biogas production was achieved.

biological pretreatment; corn silage; anaerobic codigestion

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