Abstract
Sugarcane bagasse is a biological waste which is widely generated from sugar mill industries. Its use in these factories is a potential way of environmental pollution and that’s why it needs to be valorized like by-products in biorefineries sectors, especially for biogas production. Sugarcane bagasse has been characterized and pretreated by hydrothermolysis in a reactor for enabling the inoculums activity. The anaerobic digestion has been experimented in batch process and biogas volume has been followed during 23 days of production time. The aim of this work is to investigate the effect of hydrothermolysis on the chemical composition, the potential and the kinetics of biogas production from sugarcane bagasse. The hydrothermal treatment produces 42.86% of hydrolysis yield, by increasing the amount of lignin from 22% to 47% of dry matter, without degradation of cellulose. Hydrothermolysis increased biogas yield (to approximately 15%) from 85.63 Nl/gVS and 100.57 Nl/gVS and accelerates biogas production kinetics without pH changes.
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