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  2. Reverse osmosis - Wikipedia

    en.wikipedia.org/wiki/Reverse_osmosis

    Brackish water reverse osmosis (BWRO) is the desalination of water with less salt than seawater, usually from river estuaries or saline wells. The process is substantially the same as SWRO, but requires lower pressures and less energy. [1] Up to 80% of the feed water input can be recovered as fresh water, depending on feed salinity.

  3. Remediation of per- and polyfluoroalkyl substances - Wikipedia

    en.wikipedia.org/wiki/Remediation_of_per-_and...

    Remediation of per- and polyfluoroalkyl substances refers to the destruction or removal of per- and polyfluoroalkyl substances (PFASs) from the environment. PFASs are a group of synthetic organofluorine compounds, used in diverse products such as non-stick cookware and firefighting foams, that have attracted great concern as persistent organic pollutants.

  4. Water softening - Wikipedia

    en.wikipedia.org/wiki/Water_softening

    Reverse osmosis uses an applied pressure gradient across a semipermeable membrane to overcome osmotic pressure and remove water molecules from the solution with hardness ions. The membrane has pores large enough to admit water molecules for passage; hardness ions such as Ca 2+ and Mg 2+ will not fit through the pores.

  5. Iron oxide adsorption - Wikipedia

    en.wikipedia.org/wiki/Iron_oxide_adsorption

    Arsenic is a common natural contaminant of well water and is highly carcinogenic. Iron oxide adsorption treatment for arsenic in groundwater is a commonly practiced removal process which involves the chemical treatment of arsenic species such that they adsorb onto iron oxides and create larger particles that may be filtered out of the water stream.

  6. Water purification - Wikipedia

    en.wikipedia.org/wiki/Water_purification

    High purity deionised water is produced continuously, similar to ion-exchange treatment. Complete removal of ions from water is possible if the right conditions are met. The water is normally pre-treated with a reverse osmosis unit to remove non-ionic organic contaminants, and with gas transfer membranes to remove carbon dioxide. A water ...

  7. EXCLUSIVE: Crown And 529 Capital To Co-Build and Co-Own ... - AOL

    www.aol.com/exclusive-crown-529-capital-co...

    On Monday, Crown Electrokinetics Corp (NASDAQ:CRKN) announced that its Water Solutions division plans to construct and co-own a reverse osmosis (RO) water treatment plant in Cabo San Lucas, Mexico ...

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