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Evaluation du potentiel de valorisation par digestion anaérobie des gisements de déchets organiques d’origine agricole et assimilés en Haïti

Abstract : Agricultural and similar residues are characterized by their ability to be converted through aerobic and anaerobic biological treatments and to be rapidly decomposed, particularly in tropical climate countries. These residues contribute to the emission of odors, air pollution, groundwater and surface water pollution and proliferation of insect diseases. Anaerobic digestion is of great interest particularly in the context of the precarious conditions in countries like Haiti, not only because it contributes to fermentable organic waste treatment and prevention of the negative impacts mentioned above, but also because it offers products of high energy (methane) and fertilizer (digestate) value. There has yet to be identified a systematic study quantifying and characterizing bio-physic and chemical fractions of organic wastes from agriculture in Haiti. This paper provides an initial contribution to the quantitative assessment of mass and energy potential from organic residues generated by agriculture. This study reveals that combined deposits of plant and animal residues are about 2.0 x 106 tons of organic matter, which corresponds to a potential production of 3.5 x 108 m3 of methane through anaerobic digestion. Further works and field surveys can refine this assessment by considering smaller time intervals and a finer geographic network.
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https://hal.archives-ouvertes.fr/hal-03172033
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J. Lacour, R. Bayard, E. Emmanuel, R. Gourdon. Evaluation du potentiel de valorisation par digestion anaérobie des gisements de déchets organiques d’origine agricole et assimilés en Haïti. Environnement, Ingénierie & Développement, Episciences, 2011, N°60 - Juin 2011, pp.31-41. ⟨10.4267/dechets-sciences-techniques.2890⟩. ⟨hal-03172033⟩

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