Because ANOVA results indicate that temperature was a contributing factor to biomass productivity, biofilm productivity rates at the three specified temperatures were applied to the Arrhenius equation in order to obtain the activation energy (E a). The equation used was1\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ K=A*{e}^{\frac{-{E}_a}{RT}} $$\end{document}K=A*e−EaRTwhere K is the biomass productivity, E a is the activation energy of the reaction, and R is the universal gas constant (8.314 J K-1 mol-1). Equation 1 was then linearized by taking the natural log of both sides.2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ lnK=\frac{-{E}_a}{RT}+ ln\;A $$\end{document}lnK=−EaRT+lnA