Process and mechanical detail engineering on a new plant owned by company Acqua & Sole S.r.l. for the food industry waste management, biogas production used on endothermic engines and thermal recovery with steam and hot water production. The production of all energy vectors will be used for the digestive process. Developing all P&ID, machinery lay out, mechanical detail and high temperature systems stress analysis. All in all 2,1MWel and 1,7MW_th of hot water and approximately 800kW_th of saturated steam at 4barg.