The objective of this research was to use white-rot fungus 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 was 0.167 m kg. In the second phase, corn grits and ensiled corn silage were replaced with corn silage pretreated with , and the average methane generation rate increased up to 0.236 m kg. 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.

中文翻译：

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玉米青贮真菌固态预处理提高牛粪厌氧共消化沼气产量


本研究的目的是利用白腐真菌对玉米青贮饲料进行预处理，并研究预处理对沼气产量的影响。进行了由两个实验阶段组成的半连续中试规模实验。在第一阶段，以中试规模再现了全规模沼气厂的运行条件。该阶段每天向反应器中加入牛粪、工业后发酵罐沼渣、玉米碴和青贮玉米青贮饲料的混合物，平均甲烷产生率为0.167 m kg。第二阶段，将玉米碴和青贮玉米青贮饲料改为经预处理的玉米青贮饲料，平均产甲烷量提高至0.236 m kg。本研究结果表明，应用基于真菌的固态预处理玉米青贮饲料对 pH 值稳定性和提高沼气生产率具有积极作用。