Co-digestion of spoiled maize silage with cattle manure

Authors : Ali AYBEK, Mehmet SOLAK, Kamil EKİNCİ

Pages : 287-291

Doi:10.29136/mediterranean.891722

View : 14 | Download : 7

Publication Date : 2021-12-01

Article Type : Research Paper

Abstract :In this study, spoiled maize silage insert ignore into journalissuearticles values(SMS); and cattle manure were co-digested at five different mixtures by the Hohenheim Batch Yield Test unit under mesophilic conditions to explore biogas production possibilities of these wastes together. The mixtures were 100% cattle manure, 100% SMS, 85% cattle manure + 15% SMS, 70% cattle manure + 30% SMS, and 55% cattle manure + 45% SMS. Chemical properties of raw materials and mixtures, including crude fat, dry matter, organic matter, and acid detergent fiber insert ignore into journalissuearticles values(ADF); contents were determined. As the amount of SMS in the mixtures increased, biogas and methane production increased. The highest cumulative specific biogas and methane production were determined for 100% SMS as 0.62 Nm3 kg-1 organic matter insert ignore into journalissuearticles values(OM); and 0.31 Nm3 kg-1 OM, respectively, where Nm3 is the volume of biogas under normal conditions. Methane content of the mixture containing SMS insert ignore into journalissuearticles values(49.99% to 51.87%); was higher than that of cattle manure only insert ignore into journalissuearticles values(44.01%);. Furthermore, the mixtures which had lower ADF content yielded more methane and biogas. In conclusion, the efficiency of biogas and methane production can be increased by applying the co-digestion technique.
Keywords : Spoiled maize silage, Cattle manure, Co digestion, Biogas, HBT