Characterizations environmental and energy of the biomethanisation industrial applied to avicolous biomass in Tunisia

Abstract

This work consists in studying the alkaline fermentation, applied to the avicolous droppings, established on the level of the digester controls industrial Sousse Hammam. The analytical follow-up of this digester related, on the one hand, to the determination of certain characteristics of the avicolous effluent by the analysis of the physicochemical parameters (pH and Dry Matter: DM) and environmental (Suspended matter: SM and Asks Biological out of Oxygen: DBO 5 ), and in addition, on the energy follow-up by the appreciation of the qualitative productivity (Composition in Biomethane and Calorific value) of produced biogas. At the end of the experimentation implemented, the synthesis of the principal results is the following one: - The best assessments of depollution are obtained on the level of the mud tank as well concerning SM as the DBO 5 . - The interest of the recourse to the purification of produced biogas was shown by comparing the results before and after purification as well on gas the composition plan as on the calorific value level. - The installation of Biomethanisation considered requires some improvements for a better qualitative energy productivity, a better reduction of the power polluting of the droppings and a better valorization of the solid and liquid residues.