Bio-Ethanol Production from Cornstalk Containing Wastewater
DOI:
https://doi.org/10.12974/2311-8741.2014.02.02.1Keywords:
Cellulosic ethanol, cornstalk, fermentation, pre-treatment.Abstract
Having identified poorly efficient pre-treatment methods as the rate limiting step to cellulosic ethanol production, combination of two or more pre-treatment methods are being examined. In this study, three stage alkaline-acid-enzyme pre-treatment was attempted in addition to using waste water containing organic matter. Optimum Reducing Sugar yield of 604.96mg/g cornstalk was obtained when 10% (w/v) NaOH and 5% (v/v) H2SO4 was used in succession at 120˚C for 60 minutes. The use of wastewater containing cornstalk for the production of cellulosic ethanol was found to have desirable effects on Reducing Sugar yields. Total Reducing Sugar yield was increased to 874.05mg/g cornstalk and fermentation efficiency of 89.44% for wastewater containing 40g/L cornstalk.
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