Abdussamad Abubakar1, Abdullahi Muhammad2, Dayyabu Shehu3, Murtala Ya’u3, Abba Babandi3, Abubakar Sadiq Tanko4, Ferdaus Mohamat-yusuff5, Hadiza Ibrahim6 and Salihu Ibrahim2*

Abstract

Tributyltin (TBT) is one of the most toxic substances ever deliberately introduced into the marine environment. It is an organotin compound mostly used as wood preservative, pesticide, bactericide, PVC stabilizer, fungicide, antifouling biocide in boat and ships paints to prevents attachments of the marine organism on the hull surface.We studied the TBT-Resistant Bacterium by Klebsiella sp. FIRD 2 containing copper II ion and modelled it using several kinetic models such as Monod, Haldane, Luong, Aiba, Teissier, Yano, and Webb and estimated the accuracy of the fitted model using statistical analysis such as coefficient of determination (R2), adjusted coefficient of determination (adj R2), and root mean square (RMSE). Aiba model was the best model to the experimental growth kinetics data determined and gave a very good fit. The estimated value for the Aiba constants in this work such as maximal growth rate, half inhibition constant, and half saturation constant rate designated asumax, ki andks were 0.1265 hr-1, 8.061 mg/Land 0.8300 mg/L respectively. The true umax where the gradient for the slope is zero for the Aiba model was approximately 0.061093 hr-1 at 1 mg/Lcopper.