The Effects of Fermentation Extent and Acid Concentration on Bioethanol from HVS Paper Waste

<strong>ABSTRACT. </strong>Bioethanol is an alternative energy sourced from environmentally friendly raw materials wastes that contain a lot of lignocellulosic such as HVS paper. Paper contains about 85% cellulose, 8% hemicellulose, 5% lignin and the rest in form ash compounds. Bioethanol ethanol produced fermentation glucose (sugar) followed by distillation process. This study aims to analyze effect combination time concentration sulfuric acid on bioethanol. The highest yield beathanol was obtained at hydrolysis 6.5% with 7-day 3.45%. density close standard 3.5% 3 5 days fermentation. Moreover, showed closest bioethanol viscosity value all conditions synthesized acidic pH ranged 6 6.5