%0 Journal Article %A Nopparat Pochai and Rujira Deepana %D 2011 %J International Journal of Mathematical and Computational Sciences %B World Academy of Science, Engineering and Technology %I Open Science Index 56, 2011 %T An Optimal Control of Water Pollution in a Stream Using a Finite Difference Method %U https://publications.waset.org/pdf/6101 %V 56 %X Water pollution assessment problems arise frequently in environmental science. In this research, a finite difference method for solving the one-dimensional steady convection-diffusion equation with variable coefficients is proposed; it is then used to optimize water treatment costs. %P 1203 - 1205