Biogas Production From Digested Pennisetumpurpureum (Elephant Grass) And Axonopus Fleuxosus (Carpet Grass) By Anaerobic Bacteria:- Nwankwo Bibian O

ABSTRACT

This study was aimed at investigating micro-org ’ Pennisetum purpurpeum and Axonopus fleuxosus^^ inv°lved in biogas production using different locations within Michael Okpara Univ^ SUbstrate' The substl‘ate was obtained from constructed. The co-digestion lasted for 30 days A^V’ .^mud’^e‘ A simPle biodigester was substrates at various weeks was in the range of 3?°c revealed that the temperature of the between the range 5.2 to 7.3 at various weeks of di?° f C wbde the.pH ofthe substrates varied that the Moisture content ofP.purpurpeum and A 1On’ Tbe Proximate composition showed Ash 3.94% and Carbohydrate 26.0%. Standard Were 510//° ’ Prote’n 8-56%, at 1.98%, isolation and enumeration of bacteria. Bacteria +'° °glCa' metb°ds were employed in the Pseudomonas aeruginosa, Clostridium spn Bacilli & eS-r?Zere identified as Escherichia coli, 2 and week 3 are 4.2 x 106 cfu/g, 3.4 x IO5 cfu/p v*a^e count at week 1, week confirmed that co-digestion ofP. purpurneum anH a si* C L^g' respect’ve*T• This study has / purpeum and A. fleuxosus anaerobically can produce biogas.