Biology and Medicine

Production of biogas from the co-digestion of plantain peels, yam peels and cow dung

2^nd World Congress on Beneficial Microbes: Food, Pharma, Aqua & Beverages Industry

September 22-24, 2016 Phoenix, USA

Makinde Oluwatayo Ayotunde and Odokuma L O

Adekunle Ajasin University, Nigeria
University of Port Harcourt, Nigeria

Posters & Accepted Abstracts: Biol Med (Aligarh)

Abstract:

The biogas production potential of the co-digestion of plantain (Musa parasidiaca) peels, yam (Discorea rotundata) peels and cow (Bos primigenius) dung was investigated. Two waste combinations of plantain peels with cow dung (A), yam peels with cow dung (B) and three waste combination of plantain peels, yam peels with cow dung (C) were used for biogas comparison. The waste was charged into a glass type digester of 1000 ml capacity and a rubber type digester of 5 L within a retention period of 4 weeks. Biogas production was determined using water displacement method. Changes in methane concentration of the biogas, the bacteria associated with biogas production and the pH of the slurry before and after the biogas production was determined. Bacteriological analyses showed the presence of Pseudomonas sp., Klebsiella sp., Bacillus sp., E. coli, Clostridium sp., Streptococcus sp., Micrococcus sp. and Bacillus sp., E. coli, Clostridium sp. from the fresh and spent slurry respectively. The highest volume of biogas (680 ml) was obtained from the co-digestion (C1) followed by (428 ml) from the yam peels treatment option (B3) while the least (0 ml) was from the plantain peels treatment option (A1). The purification system using lime water and iron filings was able to remove about 74% of the CO2 and 82% of the H2S respectively from the biogas generated.

Biography :

Email: doctormak4u@yahoo.co.uk