By: C. P. Ukpaka, Vincent Godfrey Ikoro, and Patience N. Ikenyiri
1Professor, Department of Chemical and Petrochemical Engineering, Rivers State University, Port Harcourt, Nigeria. 2Research Scholar, Department of Chemical and Petrochemical Engineering, Rivers State University, Port Harcourt, Nigeria. 3Associate Professor, Department of Chemical and Petrochemical Engineering, Rivers State University, Port Harcourt, Nigeria.
In this research paper, investigation studies were carried out to determine which model best predicts the amount of using the linear, power, growth rate decay, and non-elementary rate models, the kinetics of the biogas produced under the impact of biodegradation were explored. Carbon(iv)oxide was produced as a fraction of the biogas acquired from the experimental conditions. Either of the linear, power, growth rate decay, and non-elementary rate models can be used to investigate biogas production, as all the models with a regression value R2 of approximately 1 is proven to be suitable. Increase in the production of CO2 was observed with an increase in the degradation of the spent grain in anaerobic digested as well as decrease in the concentration of spent grain. The kinetic of the linear model is as well as the established model can be found useful in monitoring, predicting and simulating the rate of spent grain degradation as well as the CO2 production under the action of microbial activities in anaerobic digester. This study has proved the significance of anaerobic digester in the production of CO2 as the MATLAB simulation demonstrates the trend of product yield as well as functional parameters and coefficients determination.
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