Multifunctional cooling water treatment programs address scale and corrosion control through blends of
inhibitors. Less than optimum ratios of inhibitors can result in product overfeed, increased costs, and in
some cases, inhibitor induced fouling. This paper describes the use of computer modeling to optimize
ratios of scale and corrosion inhibitors for different water chemistries. The method is applicable to
formulating single drum treatments, and for optimizing separate inhibitor feed rates.