Modeling composition of properties of biogas produced from the Co-digestion of cow-dung and organic kitchen waste

Oji Akuma 1, *, Nkemakolam Kelechi Daniel 1, Ibifuro Altraide 2 and Amodu Da-Silva

1 Department of Chemical Engineering, University of Port Harcourt, Port Harcourt, Nigeria,
2 World Bank African Center for excellence, Center for Oil field Chemical research. University of Port Harcourt, Nigeria.
3 Petroleum Training Institute, Effurun, Delta State, Nigeria.
 
Research Article
GSC Advanced Research and Reviews, 2022, 13(01), 142–154.
Article DOI: 10.30574/gscarr.2022.13.1.0278
Publication history: 
Received on 08 September 2022; revised on 11 October 2022; accepted on 14 October 2022
 
Abstract: 
Public concerns about climate change, air pollution, water quality and rising energy consumption have place pressure on producers and industry to reduce emissions and promote pollution-free sources of energy. One of the most generally available sources of renewable energy is biogas; hence, this study on kinetic modeling of the biogas composition was carried out at ambient condition for a period of 30 days to supplement energy requirements in farms and houses. The substrates, cow dung and organic kitchen waste were co-digested at different ratios for biogas production at laboratory scale. The digesters substrate had 3300g of feed each with varying ratios of 70:30 (Sample A), 50:50 (Sample B), 40:60 (Sample C), and 30:70 (Sample D) of cow dung to organic kitchen waste respectively. A biogas analyzer was used for the measurement of gas composition, biodigester operating parameter were measured using a multi-meter, while gas volume was obtained using calibrated floating drum. The model showed polynomial correlation as best fit using the R2 method.
 
Keywords: 
Biogas; Biogas-analyzer; Co-Digestion; Cow-dung; Biodigesters; Correlation
 
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