@article{MAKHILLJEAS2020151919449, title = {Comparative Analysis of Kinetic Models for Anaerobic Digestion of Abattoir Waste}, journal = {Journal of Engineering and Applied Sciences}, volume = {15}, number = {19}, pages = {3367-3373}, year = {2020}, issn = {1816-949x}, doi = {jeasci.2020.3367.3373}, url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2020.3367.3373}, author = {A.A.,I.A.,A. and}, keywords = {Kinetic model,non-linear regression,biogas production,abattoir waste,COD/VSS}, abstract = {Comparative analysis of the kinetic models was done by evaluation of the bio-kinetics constants of the abattoir waste based on some selected existing models; Monod, Logistics, Chen amd Hashimoto, Contois and Teissier. A 10 L locally fabricated Biodigester was used in this research with samples taken on a weekly basis over a period of 64 days and analyzed for COD, TSS, VSS, pH using standard methods (ASTM). The COD/VSS time series data was fitted into the five microbial growth kinetic models using non-linear regression analysis with MATLAB 7.9. The data fitting also led to the determination of these model’s biokinetic parameters and their 95% confidence intervals. The data fitted well into all the models with corellation coefficients R2>0.9 for all the models with Monod’s Model having the highest R2 of 0.979. The biogas produced has a high content of methane, 72.73% which is greater than the minimum (>60% mol.) quality requirement for used in internal combustion gas engines.} }