Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Titre : Valorization of household waste by the bio-drying process assisted by a thermal source

Auteur : HAMDI Chafia & KHALDI Keltoum

Université de soutenance : Université Kasdi Merbah Ouargla

Grade : Master Chemical Engineering 2022

Résumé
The biological drying experiments were carried out by using two dryers, the first is an oven, the purpose of this step is to improve the ideal sludge ratio and operating temperature and the second is a tunnel dryer that aims to apply the initial application settings with the addition of thermal resistance and air stream. Experimental studies on biodrying of food waste mixed with sludge based on the preparation of 3 samples (1/3 Sl + FW, 1/5 Sl + FW) and FW without sludge, where it was found that (1/3 Sl + FW) is the optimal sample at 45°C. Where was the result as follows : VSf=62.98%, and this indicates that the bacterial activity contributes the Reduction of moisture content and thus improves bio-drying.

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