Characterization of digestates: do they fit with soil improvers or fertilisers standards?

A. Trémier (1) , J. Buffet (1) , M. Daumoin (1) , P. Saint Cast (1) , S. Picard (1) , Sébastien Berger (2)

1 UR GERE - Gestion environnementale et traitement biologique des déchets
2 aucun

Management of digestates could be a key issue for the future development of the anaerobic digestion market. Actually, a clear definition of their status and quality is necessary to secure valorization opportunities for all of the treated organic matter. In this study, three digestion plants have been followed for one year. Raw, solid and liquid digestate were sampled and characterized five times along the year in order to state on their quality and to compare it to the existing standards for soil improvers and fertilisers. In a French context, digestates do not fulfil the product specifications of soil improvers or fertilisers.

Mots clés: DIGESTION ANAEROBIE; MATIERE ORGANIQUE; CARACTERISATION; DIGESTAT

Domaines: Sciences de l'environnement

A. Trémier, J. Buffet, M. Daumoin, P. Saint Cast, S. Picard, et al.. Characterization of digestates: do they fit with soil improvers or fertilisers standards?. 15th RAMIRAN International Conference. Recycling of organic residues for agriculture: from waste management to ecosystem services, Jun 2013, Versailles, France. 4 p. ⟨hal-00923334⟩