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Study on Rice Straw Pretreatment with NaOH and Biogas Production from Anaerobic Fermentation

Sun Chen, Liu Ronghou (Biomass Energy Engineering Research Centre, School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240,China)  
The objective of this research was to compare biogas production and COD removal between rice straw pretreated with 6%NaOH and rice straw with non-pretreatment during thermophilic anaerobic fermentation. Result showed that the max daily gas production, total gas production and COD removal of pretreated rice straw were 61.34%, 55.23% and 48.72% higher than the unpretreated. Therefore, 6%NaOH pretreatment contributed to anaerobic digestion efficiency and biogas production.
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