Purification of water

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