LIVESTOCK WASTE IN THE CONTEXT OF AGRICULTURAL SUSTAINABILITY

The production of biogas from animal waste is not only a way to reduce waste quantities but also to generate thermal or electrical energy in a sustainable manner, thereby contributing to environmental preservation and diversification of energy sources. Through combustion, biogas can generate electricity or heat, providing a sustainable, renewable, and environmentally friendly energy source. It was observed that manure from different animal species can exhibit varying biogas production rates, and certain types of manure can lead to higher or more consistent biogas levels. The experimental set-up recorded efficient biogas production after seven days of anaerobic digestion. The optimal mixtures were those with a higher proportion of grass, consisting for example of 40% grass, 15% pig manure, 15% cattle manure, 30% poultry manure, and 278.23 g of inoculum.