INHIBITION DE LA DIGESTION ANAEROBIE

Abstract

Anaerobic digestion is a biological process in which microorganisms break down organic matter in the absence of oxygen, primarily producing biogas (a mixture of methane and carbon dioxide) and digestate (organic residue). This process is widely used for the treatment of organic waste and the production of renewable energy. However, the presence of antibiotics can inhibit this process, thus affecting the efficiency of anaerobic digestion In this study, the inhibitory effect of amoxicillin was examined at different doses, ranging from 15 to 60 mg/L, in a BMP test under mesophilic conditions. The results of the BMP test indicate that amoxicillin, at doses ranging from 15 to 60 mg/L, has an inhibitory effect only during the lag phase and is negligible during the exponential phase, primarily due to the resistance of methanogenic microorganisms to the active compound amoxicillin.