Use of sugarcane vinasse to biogas, bioenergy, and biofertilizer production

Abstract Alcohol as well as sugar and electricity from cogeneration systems, is one of the main products of the sugarcane industry in Brazil. The annual production of ethanol in Brazil is about 30 million m3. Considering that to each liter of ethanol produced other 12 L of vinasse is generated, about 360 billion of liters of this by-product is produced annually in the country. Vinasse biodigestion The anaerobic biodigestion of the sugarcane vinasse is a promissing alternative to produce biomethane and eletricity in the ethanol industry.