Background and environmental problems

The world census of porcine is estimated on 965,5 millions of animals, while the number of bovine cattle amounts 1.300 million worldwide. Spain is the second country in porcine production in the European Union (30million pigs/year) and the third one in bovine production (7million/year), resulting in the generation of about 50million tons of manure that must be correctly treated.

Currently most of the manure is used as organic fertilizer, but that implies a high risk of giving rise different environmental affections derived from the unstable and poorly controlled input of nitrogen to the soil. These affections include contamination of groundwater and surface water due to leaching or emission of greenhouse gases (GHGs) to the atmosphere.

Attending to this situation, the Technological Centre L’Urederra detected a great necessity of improving manure management in farms. In order to achieve this overall goal, L’Urederra proposed the application of a treatment of anaerobic digestion, that allows producing electric and thermal energy from the obtained biogas on one hand, and achieving an agronomical valorization of the digestate on the other hand, thanks to the stabilization and control of the nitrogen levels, beside reducing or removing GHGs’ emissions.

Therefore both the process and the product obtained as a result of that process will offer environmental and economical advantages.


L'Urederra Technological Centre

Área Industrial "Perguita", Calle A, nº 1 | 31210

Los Arcos (Navarra - Spain)

Phone: + 34 948 64 03 18