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2. Water purification - Wikipedia

   en.wikipedia.org/wiki/Water_purification

   Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids, and gases from water. The goal is to produce water that is fit for specific purposes. Most water is purified and disinfected for human consumption (drinking water), but water purification may also be carried out for a variety of other ...

3. Purified water - Wikipedia

   en.wikipedia.org/wiki/Purified_water

   Double-distilled water (abbreviated "ddH 2 O", "Bidest. water" or "DDW") is prepared by slow boiling the uncontaminated condensed water vapor from a prior slow boiling. Historically, it was the de facto standard for highly purified laboratory water for biochemistry and used in laboratory trace analysis until combination purification methods of ...

4. Boiling - Wikipedia

   en.wikipedia.org/wiki/Boiling

   The boiling point of water is 100 °C (212 °F) at sea level and at normal barometric pressure. [9] In places having a proper water purification system, it is recommended only as an emergency treatment method or for obtaining potable water in the wilderness or in rural areas, as it cannot remove chemical toxins or impurities. [10] [11]

5. List of purification methods in chemistry - Wikipedia

   en.wikipedia.org/wiki/List_of_purification...

   There are several type of distillation: simple distillation, steam distillation etc. Water purification combines a number of methods to produce potable or drinking water. Downstream processing refers to purification of chemicals, pharmaceuticals and food ingredients produced by fermentation or synthesized by plant and animal tissues, for ...

6. Portable water purification - Wikipedia

   en.wikipedia.org/wiki/Portable_water_purification

   Portable water purification devices are self-contained, easily transported units used to purify water from untreated sources (such as rivers, lakes, and wells) for drinking purposes. Their main function is to eliminate pathogens, and often also of suspended solids and some unpalatable or toxic compounds. These units provide an autonomous supply ...

7. Reverse osmosis - Wikipedia

   en.wikipedia.org/wiki/Reverse_osmosis

   Reverse osmosis (RO) is a water purification process that uses a semi-permeable membrane to separate water molecules from other substances. RO applies pressure to overcome osmotic pressure that favors even distributions. RO can remove dissolved or suspended chemical species as well as biological substances (principally bacteria), and is used in ...