Recherche d'une filière durable pour la méthanisation des déchets de fruits et d'abattoirs du Togo : Evaluation du potentiel agronomique des digestats sur les sols de la région de la Kara

Abstract : Anaerobic digestion, a renewal energy process, constitutes an undeniable asset of material and energy flows recovering in response to sustainable development issues. Thus, the aim of this current study was to contribute to the understanding of mechanisms that govern the reactive environment of anaerobic digestion and the effects of digestates on the biophysico- chemical matrix of agricultural soils sector. The running of leaching tests in aerobic and anaerobic controlled reactors, organo-mineral mobilizations patterns of the substrates and the valorization of biogas in slaughtered animals knackering have been realized. The physicochemical and technical locks tarnishing the pineapple wastes anaerobic digestion have been lifted and optimized through the co-substrates including cattle manure and ashes. The digestates have been brought on agricultural soils, forests areas soils and medium free of organic matter and clays and allowed to detect the limits of digestates uses and the interactions with organic and mineral fractions of soils. This study, thus show, the importance to develop the anaerobic digestion sector for a sustainable removal of organic wastes.
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Maglwa Tcha-Thom. Recherche d'une filière durable pour la méthanisation des déchets de fruits et d'abattoirs du Togo : Evaluation du potentiel agronomique des digestats sur les sols de la région de la Kara. Géochimie. Université de Limoges; Université de Lomé (Togo), 2019. Français. ⟨NNT : 2019LIMO0061⟩. ⟨tel-02370133⟩

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