European graziers will be able to produce to low cost fertilizante ecological from the residual materials of the production of biogás

The European project Digesmart will offer a solution of treatment of the residual materials of the production of biogás agro-industrial from dejections graziers and other pertinent organic rests of the agroindustria. These materials, have an aprovechamiento agricultural like fertilizantes, but, in occasions, this recycling sees hampered by the high costs associated to his transport and application in field. By means of the combination of technologies posed in this project, the European graziers will be able to recycle these materials transforming them in fertilizantes of high value and to a low cost. This solution low cost will be applicable to Spain, France, Belgium, Italy, Germany, Low Countries and Denmark.

Diagram simplified of the treatment of digested of Enerbiom.

The project Digesmart is formed by partners of four countries: Enerbiom (France), University of Turín-Group Disafa (Italy), SATA (Italy), Biogás-And (Belgium) and ainia technological centre (Spain). Funded by the European Union under the program Echo-Innovation, the technical activities will finalise in three years, with the installation of nueve units of treatment in Europe.

Enerbiom, SME French, proposes an innovative solution low-cost to produce fertilizantes ecological (obtained from renewable sources) through the use of several technologies, such as the solid separation-liquid, the stripping and the dried solar (see diagram). These technologies of recovery of nutrients will allow to adapt the solution of treatment of the residual materials of the production of biogás, known like digested, to the needs of the agriculturalists, so much in terms of capacity, available surface of application as of costs of treatment.

The project Digesmart has the intention to gather to all the agents interested in the installation of the new process, which minimises in terms of volume the application of digested and valoriza economically the mineral nutrients (nitrogen, phosphorus and potassium, among others). By means of the aprovechamiento of the digested, in place of fertilizantes of synthesis, is possible to realizar an energetic saving, limit the consumption of fuels fossils and reduce the footprint of carbon.

The first installation of these technologies developed by Enerbiom will be implemented in a plant of biogás agro-industrial in the north of France because of the excess of dejections graziers of this area and to the important problem of the pollution of the aquifers. The technologies are applied to the digested in the rough (separation of the digested in solid and liquid fraction, by means of the use of centrifuges) as well as to the liquid fraction of the digested (stripping and dried solar).