Purification of water may refer to any of the following.

  • Water purification, the large scale production of clean water for supply to consumer taps and industry.
  • Distilled water, the use of distillation to remove contaminants from water
  • Portable water purification, techniques for use in emergencies or away from conventional sources of clean water
  • Water filter, devices used for small scale quality improvement, often in domestic situations
  • Deionized water, industrial production of ultra pure water
  • Reverse osmosis, a technique for producing potable water from highly contaminated sources.
  • Sewage treatment, treatment of sewage to remove contaminants