Water disinfection means the removal, deactivation or killing of pathogenic microorganisms. Microorganisms are destroyed or deactivated, resulting in termination of growth and reproduction. Disinfection was done by boiling water as early as 500 BC.

Modern Potable Water Disinfection Practices:

  • Gas chlorination
  • Commercial sodium and calcium hypochlorite
  • On-site generated hypochlorite from brine
  • Medium pressure UV
  • Chlorine dioxide
  • Ozone
  • Chloramination
  • Multiple barrier systems with membranes