ABSTRACT

A p o w e r s t a t io n is a large consumer of water and the operation of a high pressure boiler requires the supply of high purity water as makeup (Masson and Deans, 1996; Torville and Masson, 1997). The major con­ sumption of water on a power station site is in the main steam con­ denser and smaller cooling systems, with other site uses including fire services, plant washdown, and ash transport (where a wet slurry sys­ tem is employed) and demineralized water supply for boiler makeup. The quality of the power station’s water supply influences the type of water treatm ent process selected and the operations of the treatm ent plant. This chapter examines a number of variables for water supply quality and treatm ent options for a power station.