02-17: Cooling Tower System Components and the Impact of Reuse Waters

The increase in reuse waters replacing fresh water supplies in cooling tower systems requires an understanding of potential impacts on cooling tower and heat exchange equipment. This paper identifies those reuse water ingredients that impact on scale, fouling, corrosion, and biological concerns. It identifies those components that are impacted, depending upon their materials of construction and location in the cooling system. Guidelines are provided as to what are potential problems and corrective measures. Several case histories are provided.