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

Table 1

The content and degradation of cellulose, hemicellulose, and lignin in the effluent with different HRTs.

HRT (d)		20	40	60
Cellulose	Content (% TS)	36.2	32.5	32.7
	Degradation (%)	43.8	52.1	55.4
Hemicellulose	Content (% TS)	18.4	10.5	9.2
	Degradation (%)	47.1	71.4	76.8
Lignin	Content (% TS)	9.4	9.9	10.7