• The reduction of the organic waste discharge in landfills decreases the methane emissions generated as a result of fermentation of the organic matter. Methane is a potent greenhouse gas that contributes significantly to climate change. Soil contamination would also be reduced by the reduction of leachate produced in the fermentation. Reducing the discharge volume also decreases the required space
• Air quality would be improved avoiding incineration because the emissions of CO₂, particles, NO_X VOCs and dioxins associated with combustion will be reduced.
• It will be possible to achieve a significant reduction of bad odors and produce a high quality fertilizer due to the mineralization of the waste.
• If the materials contained in the waste were recycled or reused, the need to extract new materials (wood, oil, minerals…) and to produce chemical fertilizers would be reduced, avoiding their environmental impacts.

The implementation of the anaerobic digestion technology to the treatment of agroindustrial waste allows the agri-food industry to increases their competitiveness in the market since by-products with a high added value are produced:

• Biogas. A versatile renewable energy: It can be stored easily and safely and presents the same applications as natural gas. It is possible to produce electricity and thermal energy by a cogeneration engine, generate thermal energy in a boiler or be used as an automotive fuel after being cleaned.
• Compost. Agroindustrial waste treated, once a separation process has been applied, allows the generation of a high quality solid fertilizer and water for irrigation.