In this research biogas generation was calculated from biogas yield producing in the bio reactor during the Hydro
retention time (HRT) in days. Fig.1shows the biogas yield form bioreactor wet pressmud gave very low percentage of
gas production compare to dry pressmud because of wet pressmud having C/N ratio is less than 18. The
microorganisms are deceased reason for this lowest source of nutrition and Carbon/Nitrogen ratio. The dry pressmud
having higher daily gas production compare to wet pressmud in hydro rentition time.