Abstract
Bio-ethanol produced from cellulose in paper sludge is economically attractive as a value-added product. Bio-ethanol production from paper sludge was examined in a process of simultaneous saccharification and fermentation in which both cellulase and yeast were worked together on cellulose sludge in a laboratory-scale experimental system at 37°C. In the experiment, it was confirmed that yeast could ferment glucose to alcohol in a phosphorus buffer solution. Consequently, 12.7ml of bio-alcohol with a concentration of 42.0% was obtained from 30g of paper sludge after distillation of the reacted solution by simultaneous saccharification and fermentation. The experimental results showed that the process of simultaneous saccharification and fermentation to produce bio-ethanol could be a bio-fuel production process in the coming age.
