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Table 4 Contents of VS in percentage and contents of TOC and ethanol in g/l for the substrates passed to AD and in the inoculum

From: Ethanol and biogas production after steam pretreatment of corn stover with or without the addition of sulphuric acid

Pretreatment Substrate VS (%) TOC (g/l) Ethanol (g/l)
  Inoculum 1.36 - -
No catalyst Hydrolysate 1.77 10.9 -
  Thin stillage from SSF with unwashed material 3.64 14.1 0.03
  Thin stillage from SSF with washed material 1.15 5.5 0.19
0.2% Sulphuric acid Hydrolysate 2.48 13.7 -
  Thin stillage from SSF with unwashed material 3.66 18.1 0.09
  Thin stillage from SSF with washed material 1.29 6.8 0.03