3.4 COD reduction in bioreactor
From Figure-4 it can be seen that the averaged
COD removal efficiency was 48.5%, which is
comparatively lower than the commonly obtained COD
removal from cattle manure (51-79%) [13]. This resul
was believed to be due to the high COD exhibited by theinoculum which leads to increase in influent COD
concentration. In effect, it dominates.