The wine industry produces a large amount of waste every year, this waste is generally not properly managed and becomes an environmental and sanitary hazard. On the other hand, the production of clean energies such as biogas from cattle manure has become an important energy resource. The aim of this study was to evaluate the biochar obtained by torrefaction of agricultural grape residues in the production and quality of biogas produced by anaerobic digestion of cattle manure. The study was carried out in the experimental area of the La Católica farm, located in Majes, Arequipa-Peru. A multiple factorial design composed of nine treatments was used to produce biochar, where the operating parameters were temperature and torrefaction time; and response parameters were grape residue mass yield, biogas yield and quality. The results indicate that temperature and torrefaction time significantl...

The wine industry produces a large amount of waste every year, this waste is generally not properly managed and becomes an environmental and sanitary hazard. On the other hand, the production of clean energies such as biogas from cattle manure has become an important energy resource. The aim of this study was to evaluate the biochar obtained by torrefaction of agricultural grape residues in the production and quality of biogas produced by anaerobic digestion of cattle manure. The study was carried out in the experimental area of the La Católica farm, located in Majes, Arequipa-Peru. A multiple factorial design composed of nine treatments was used to produce biochar, where the operating parameters were temperature and torrefaction time; and response parameters were grape residue mass yield, biogas yield and quality. The results indicate that temperature and torrefaction time significantl...