Skip to main content

Advertisement

Table 2 Total solids and volatile solids degradation (%) in the mixtures following solid-state anaerobic digestion

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

Parameter   Control 5 : 1 2.5 : 1 1 : 1
TS Pretreatment 34.0 ± 3.6 21.5 ± 2.1 19.3 ± 0.0 20.9 ± 1.3
  No pretreatment 33.0 ± 2.2 15.0 ± 3.1 5.7 ± 2.3 3.1 ± 0.9
VS Pretreatment 37.5 ± 3.7 43.1 ± 1.7 45.9 ± 1.8 36.6 ± 0.0
  No pretreatment 34.9 ± 4.7 42.5 ± 4.3 40.3 ± 3.9 31.3 ± 3.5
  1. Note: Degradation (%) of TS and VS were calculated after determination of the TS and VS contents of mixtures before and after anaerobic codigestion.
  2. TS: total solids; VS: volatile solids.