78-11: Bacterial Aerosols Generated by Cooling Towers of Electrical Generating

The concern about thermal pollution produced by the cooling waters of open-cycle cooling systems for electrical generating plants has promoted a heavy shift to closed cycle systems. The closed cycle systems consist primarily of mechanical and natural draft cooling towers and spray canal cooling systems. All of these systems use large amounts of makeup waters to replenish that lost by evaporation, misting and blowdown. The steam electric industry of this country is predicted to use 40 to 50% of the freshwater run­off, excluding heavy spring runoff, for cooling by 1980.