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Table 3 Chemical oxygen demand balance for the degradability of the liquid fraction (in grams of O2 based on a liter of effluent)

From: Pilot-scale conversion of lime-treated wheat straw into bioethanol: quality assessment of bioethanol and valorization of side streams by anaerobic digestion and combustion

   Chemical oxygen demand (g O2) Percentage of initial total chemical oxygen demand value
Initial state Total 134.9 100
  Dissolved 54.6 40
  Non-dissolveda 80.3 60
Final state Methane 77.2 57
  Dissolved 9.4 7
  Non-dissolveda 48.2 36
  1. aNon-dissolved chemical oxygen demand was calculated from the measured values for total and dissolved chemical oxygen demand.