ABSTRACT
Process purpose The ›nal unit process before efžuent discharge into a receiving body, disinfection has several important objectives (see Figure 19.1). Disinfection’s main purpose is to protect public health by reducing the organism population in the wastewater to levels low enough to ensure that pathogenic organisms will not be present in suf›cient quantities to cause disease when discharged. Disinfection helps to prevent the spread of disease and protects our waters: drinking water supplies, beaches, recreational waters, and shell›sh growing areas.
