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  2. Calcium Lime Rust - Wikipedia

    en.wikipedia.org/wiki/Calcium_Lime_Rust

    Rust, which is primarily composed of iron oxides (Fe 2 O 3), also reacts with weak acids to form soluble iron salts. The reaction can be simplified as: Fe 2 O 3 + 6H + → 2Fe + 3 + 3H 2 O. In this process, iron ions (Fe + 3) are produced along with water, making the rust easier to remove without causing damage to the underlying metal or ...

  3. Reverse osmosis - Wikipedia

    en.wikipedia.org/wiki/Reverse_osmosis

    Solar power works well for water purification in settings lacking grid electricity and can reduce operating costs and greenhouse emissions. For example, a solar-powered desalination unit designed passed tests in Australia's Northern Territory. [17] Sunlight's intermittent nature makes output prediction difficult without an energy storage ...

  4. 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.

  5. Rust - Wikipedia

    en.wikipedia.org/wiki/Rust

    Rust is an iron oxide, a usually reddish-brown oxide formed by the reaction of iron and oxygen in the catalytic presence of water or air moisture. Rust consists of hydrous iron(III) oxides (Fe 2 O 3 ·nH 2 O) and iron(III) oxide-hydroxide (FeO(OH), Fe(OH) 3 ), and is typically associated with the corrosion of refined iron .

  6. Purified water - Wikipedia

    en.wikipedia.org/wiki/Purified_water

    Purified water is usually produced by the purification of drinking water or ground water.The impurities that may need to be removed are: inorganic ions (typically monitored as electrical conductivity or resistivity or specific tests)

  7. Water purification - Wikipedia

    en.wikipedia.org/wiki/Water_purification

    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 recovery of 99% is possible if the concentrate stream is fed to the RO inlet.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Ultrapure water - Wikipedia

    en.wikipedia.org/wiki/Ultrapure_water

    Ultrapure water (UPW), high-purity water or highly purified water (HPW) is water that has been purified to uncommonly stringent specifications. Ultrapure water is a term commonly used in manufacturing to emphasize the fact that the water is treated to the highest levels of purity for all contaminant types, including: organic and inorganic compounds; dissolved and particulate matter; volatile ...

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