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  2. ELGA LabWater - Wikipedia

    en.wikipedia.org/wiki/ELGA_LabWater

    ELGA produces water purification systems which provide purified water and ultrapure water for applications in research and analytical laboratories, medical and clinical facilities. It incorporates in its water purifiers a combination of purification technologies, e.g. reverse osmosis , electronics-grade ion-exchange resins , microfiltration ...

  3. Electroless nickel-boron plating - Wikipedia

    en.wikipedia.org/wiki/Electroless_nickel-boron...

    Electroless nickel-boron coating (often called NiB coating) is a metal plating process that can create a layer of a nickel-boron alloy on the surface of a solid substrate, like metal or plastic. The process involves dipping the substrate in a water solution containing nickel salt and a boron-containing reducing agent , such as an ...

  4. Reverse osmosis - Wikipedia

    en.wikipedia.org/wiki/Reverse_osmosis

    A RO unit delivering 20 liters (5.3 U.S. gal) of treated water per day also discharge between 50 and 80 liters (13 and 21 U.S. gal). This led India's National Green Tribunal to propose a ban on RO water purification systems in areas where the total dissolved solids (TDS) measure in water is less than 500 mg/liter.

  5. Electroless nickel-phosphorus plating - Wikipedia

    en.wikipedia.org/wiki/Electroless_nickel...

    Electroless nickel-phosphorus is used when wear resistance, hardness and corrosion protection are required. Applications include oilfield valves, rotors, drive shafts, paper handling equipment, fuel rails, optical surfaces for diamond turning, door knobs, kitchen utensils, bathroom fixtures, electrical/mechanical tools and office equipment.

  6. Water filter - Wikipedia

    en.wikipedia.org/wiki/Water_filter

    Water filters produced in Toledo, Ohio in 1895 out of terracotta A large-scale flocculation water filter. A water filter removes impurities by lowering contamination of water using a fine physical barrier, a chemical process, or a biological process. Filters cleanse water to different extents, for purposes such as: providing agricultural ...

  7. Electrodeionization - Wikipedia

    en.wikipedia.org/wiki/Electrodeionization

    Electrodeionization (EDI) is a water treatment technology that utilizes DC power, ion exchange membranes, and ion exchange resin to deionize water. EDI is typically employed as a polishing treatment following reverse osmosis (RO), and is used in the production of ultrapure water. It differs from other RO polishing methods, like chemically ...

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