Synthesis And Production Of Bio-Ethanol From Waste Paper
MLA Style: Bhavana R Maale, Roopa Guttedar "Synthesis And Production Of Bio-Ethanol From Waste Paper" International Journal of Engineering Trends and Technology 67.10 (2019):20-28
APA Style:Bhavana R Maale, Roopa Guttedar. Synthesis And Production Of Bio-Ethanol From Waste Paper International Journal of Engineering Trends and Technology, 67(10),20-28.
Paper, which is one of the largest constituent of Municipal solid waste, has become a severe problem for disposal in developed and developing countries due to the shrinking landfill capacity. It is very important and challenging task in managing the solid waste. Newspaper, which is a cellulosic feed stock, is emerging as an attractive option for the production of bio-ethanol because of lower feedstock costs, higher potential for fossil fuel displacement and also there will be reduction in greenhouse gas emission as compared to production of ethanol from corn.. In the present study, paper, which is one of the largest constituent of municipal solid waste, has become a severe problem for disposal in developed and developing countries due to the shrinking landfill capacity. It is very important and challenging task in managing the solid waste. There will be reduction in greenhouse gas emission as compared to production of ethanol from corn. The main objective of this project is to minimize the newspaper load on municipal solid waste by efficiently utilizing the waste newspaper in the production of bio-ethanol. Experimental studies had carried out to optimize the pre-treatment process for increasing the efficiency of acidic hydrolysis and enzymatic hydrolysis, the efficient conversion of cellulosic carbohydrates to hexoses and monomers cellulose degrading microorganisms and to convert the sugars released to Ethanol by using Fermentation process. Pretreatment, hydrolysis and fermentation are the steps involved in the production of Bioethanol. In the pre-treatment process, the Lignin, Hemicellulose and Cellulose are separated to enhance the hydrolysis process. The optimized condition for the pre-treatment was found to be 5% concentration of H2SO4 at 121ºC and 45 minutes. During enzymatic hydrolysis treatment, spores of Aspergillus species were used. There was a sharp increase in reducing sugars in enzymatic hydrolysis compared to acid hydrolysis of 557.8 to 592.1 mg/ml. Similarly, production of bioethanol is enhanced in enzymatic hydrolysis paper hydrolysate when compared to acid hydrolysis of 1.8 to 2.12 % in 20 gm paper hydrolysate and the yield was estimated using specific gravity method. This study revealed the possibility of producing bioethanol from locally available waste paper using cheap, simple and adaptable technology and using better yeast strains for fermentation and production.
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Paper waste, Bio-ethanol, Fermentation, Characterization, Saccharomyces Cerevisiae