Green production of bio-ethanol from cellulosic fiber waste and its separation using polyacrylonitrile- co -poly methyl acrylate membrane

摘要: The world is currently suffering substantially from the over-use of fossil fuels and worsening global climate change. recycling conversion various types biomass wastes for production bio-ethanol have recently received increasing interest around to overcome upcoming fuel shortage. In this work, cellulosic fibers textile industry were used as resource liberation glucose units. treated by some acids or alkali reagents followed application ultrasonic waves autoclaving microwave radiation green technologies improving hydrolysis rate. cellulase enzyme Trichoderma reesei was later applied increase concentration yield reach 1133.33 mg/dl. Glucose units then fermented yeast isolate that identified amplification sequencing 18S rRNA Pichia kluyveri (accession number MF184994). parameters pH, temperature, inoculum size, aerobic/anaerobic conditions optimized revealing cultivation 10% at pH 5 25 °C under anaerobic are ideal higher rates (33.9%). produced compared with standard 25% ethanol separated using amicon cell ultra-filtration contains poly acrylonitrile co methyl acrylate membrane different nitrogen pressures. characterized SEM, FTIR, Raman spectroscopy, TGA, IEC, tensile strength measurement. hydrophilicity/hydrophobicity prepared investigated contact angle water/ethanol uptake. Finally, polymeric integrated succeeded 194.25 478.74 mg/ml which approximately elevated 25 61.6%. On other hand, increased 256.41 540.82 mg/ml 33.9 69.6%. obtaining bioethanol considered cost efficient, where combined fermentation separation processes convert one ton fiber into 105 l approximate estimation 103.9$ per liter through lab scale study.