Effect of Hydraulic Retention Time on Anaerobic Digestion of Wheat Straw in the Semicontinuous Continuous Stirred-Tank Reactors

Figure 3

HAc (■), HPro (●), and TVFAs (▲) in anaerobic digestion of wheat straw with HRT of 20 (a), 40 (b), and 60 (c) days.

(a)

(b)

(c)