Naslov
Corn silage fungal-based solid-state pretreatment for enhanced biogas production in anaerobic co-digestion with cow manure

Autori
Tišma, Marina ; Planinić, Mirela ; Bucić-Kojić, Ana ; Panjičko, Mario ; Zupančič, Drago Gregor ; Zelić, Bruno

Izvornik
Bioresource technology (0960-8524) 253 (2018); 220-226

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
semi-continuous anaerobic co-digestion ; fungal-based pretreatment ; corn silage ; cow manure

Sažetak
The objective of this research was to use white-rot fungus Trametes versicolor for corn silage pretreatment and to investigate the effect of pretreatment on biogas productivity. Semi-continuous pilot-scale experiment, comprised of two experimental phases, was carried out. In the first phase, operational conditions of the full-scale biogas plant were reproduced at pilot-scale. In that phase, the reactor was daily fed with the mixture of cow manure, digestate from industrial postfermentor, corn grits and ensiled corn silage, and the average methane generation rate 0.167 m3CH4 kgVS-1. In the second phase, corn grits and ensiled corn silage were replaced with corn silage pretreated with T. versicolor, and the average methane generation rate increased up to 0.236 m3CH4 kgVS-1. The results of this study suggest that application of fungal-based solid-state pretreated corn silage has positive effect on pH stability and increase the biogas productivity.

Izvorni jezik
Engleski

Znanstvena područja
Interdisciplinarne tehničke znanosti, Biotehnologija

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