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Table 4 The technical digestion time for experiments with and without NaOH pretreatment

From: Using the properties of soil to speed up the start-up process, enhance process stability, and improve the methane content and yield of solid-state anaerobic digestion of alkaline-pretreated poplar processing residues

 

Control

5 : 1

2.5 : 1

1 : 1

Pretreatment

18 ± 3

18 ± 2

16 ± 2

18 ± 3

No pretreatment

20 ± 2

18 ± 1

18 ± 4

20 ± 1