An overview of disinfection, complete with example problems, as typically delivered in Clemson's EES 3030 Water Treatment Systems course in the Department of Environmental Engineering and Earth Sciences. The content follows Chapter 10 of the textbook "Water and Wastewater Engineering" by Mackenzie L. Davis.

Specific topics covered include history of disinfection, regulations, chlorine reactions in water, acid/base chemistry, chloramines, ozone, chlorine dioxide, UV, disinfection byproducts, disinfection kinetics, contactor design, the CT concept, chlorine demand, chlorine decay, and choosing an appropriate disinfectant.