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Conference papers

Origine et post-traitements des digestats : impact sur la dynamique de l’azote et sur la valeur fertilisante azotée et amendante des produits finaux - Résultats du projet DIVA

Abstract : Digestates are a key issue for the anaerobic digestion plants management. Indeed these residues from the digestion represent volumes comparable to the volumes of treated inputs and have to be properly valorized in order to ensure good environmental and economic performance of the whole biological treatment scheme. Digestates are generally used as soil improvers or organic fertilisers on cropped soils. Nevertheless the quality of the applied product is largely influenced by the type of organic resources treated in the digester and by the post-processing (phase separation, composting or drying of the solid phase, membrane filtration of the liquid phase, ammonia concentration, etc.). Moreover the way of post-processing and the quality of the final digestate product will influence the environmental impacts after their application. The proposed work aimed at characterizing the quality of different types of digestates and at obtaining mass balances of organic matter and nutrients along post-processing and after spreading. The presented results focus on the fate of nitrogen which is one of the most important nutrients found in digestate.
keyword : DIGESTAT
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Conference papers
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https://hal.inrae.fr/hal-02598996
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Submitted on : Saturday, May 16, 2020 - 1:13:06 AM
Last modification on : Friday, August 27, 2021 - 3:30:50 AM

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  • HAL Id : hal-02598996, version 1
  • IRSTEA : PUB00039384

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A. Trémier, Fabrice Guiziou, Sabine Houot, Amira Askri, P. Laville, et al.. Origine et post-traitements des digestats : impact sur la dynamique de l’azote et sur la valeur fertilisante azotée et amendante des produits finaux - Résultats du projet DIVA. Journées Recherche et Industrie - biogaz méthanisation, Oct 2013, Narbonne, France. pp.20. ⟨hal-02598996⟩

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