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2. Solar still - Wikipedia

   en.wikipedia.org/wiki/Solar_still

   A pit still may be too inefficient as a survival still, because of the energy/water required for construction. [9] In desert environments water needs can exceed 3.8 litres (1 US gal) per day for a person at rest, while still production may average only 240 millilitres (8 US fl oz).

3. Solar desalination - Wikipedia

   en.wikipedia.org/wiki/Solar_desalination

   Solar stills of this type are described in survival guides, provided in marine survival kits, and employed in many small desalination and distillation plants. Water production is proportional to the area of the solar surface and solar incidence angle and has an average estimated value of 3–4 litres per square metre (0.074–0.098 US gal/sq ft ...

4. Portable water purification - Wikipedia

   en.wikipedia.org/wiki/Portable_water_purification

   Carrying iodine for water purification is an imperfect but lightweight solution for those in need of field purification of drinking water. Kits are available in camping stores that include an iodine pill and a second pill (vitamin C or ascorbic acid) that will remove the iodine taste from the water after it has been disinfected. The addition of ...

5. Craft Distilleries Fight for Survival Amid Crushing ... - AOL

   www.aol.com/news/craft-distilleries-fight...

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6. Slingshot (water vapor distillation system) - Wikipedia

   en.wikipedia.org/wiki/Slingshot_(water_vapor...

   Slingshot is a water purification device created by inventor Dean Kamen. [1] Powered by a Stirling engine running on a combustible fuel source, it claims to be able to produce drinking water from almost any source [2] by means of vapor compression distillation, [3] requires no filters, and can operate using cow dung as fuel.

7. Vapor-compression desalination - Wikipedia

   en.wikipedia.org/wiki/Vapor-compression_desalination

   The compression is mechanically powered by something such as a compression turbine. As vapor is generated, it is passed over to a heat exchanging condenser which returns the vapor to water. The resulting fresh water is moved to storage while the heat removed during condensation is transmitted to the remaining feedstock.