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  2. Alexander Zarchin - Wikipedia

    en.wikipedia.org/wiki/Alexander_Zarchin

    In 1964, Alexander Zarchin obtained a patent for seawater desalination. [4] Zarchin's method of sea water desalination involved freezing sea water in a vacuum, forming pure water crystals which are then melted to produce salt-free water.

  3. Desalination - Wikipedia

    en.wikipedia.org/wiki/Desalination

    Desalination is a process that removes mineral components from saline water. ... not weather dependent and invented by Alexander Zarchin, freezes seawater in a vacuum ...

  4. Mária Telkes - Wikipedia

    en.wikipedia.org/wiki/Mária_Telkes

    Mária Telkes (December 12, 1900 – December 2, 1995) was a Hungarian-American biophysicist, engineer, and inventor who worked on solar energy technologies. [1]She moved to the United States in 1925 to work as a biophysicist.

  5. Vacuum distillation - Wikipedia

    en.wikipedia.org/wiki/Vacuum_distillation

    Vacuum distillation is often used in large industrial plants as an efficient way to remove salt from ocean water, in order to produce fresh water. This is known as desalination. The ocean water is placed under a vacuum to lower its boiling point and has a heat source applied, allowing the fresh water to boil off and be condensed.

  6. 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.

  7. Solar desalination - Wikipedia

    en.wikipedia.org/wiki/Solar_desalination

    Solar desalination is a desalination technique powered by solar energy. The two common methods are direct (thermal) and indirect (photovoltaic). [1] History.

  8. Sidney Loeb - Wikipedia

    en.wikipedia.org/wiki/Sidney_Loeb

    The invention of the practical reverse osmosis membrane revolutionized water desalination. Loeb invented the power generating process pressure retarded osmosis (PRO)--making accessible a rich previously unknown source of green energy, and a method of producing power by a reverse electrodialysis (RED) heat engine, among other inventions in ...

  9. History of water filters - Wikipedia

    en.wikipedia.org/wiki/History_of_water_filters

    Fathers of microscopy, Antonie van Leeuwenhoek and Robert Hooke, used the newly invented microscope to observe for the first time small material particles that lay suspended in the water, laying the groundwork for the future understanding of waterborne pathogens.