Optimization of the Alkaline Pretreatment of Rice Straw for Enhanced Methane Yield
Figure 4
Ratio of volatile fatty acids to alkalinity for each pretreatment of rice straw. (a) 4% Ca(OH)2 pretreatment; (b) 8% Ca(OH)2 pretreatment; (c) 12% Ca(OH)2 pretreatment.
