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  2. Lime softening - Wikipedia

    en.wikipedia.org/wiki/Lime_softening

    Lime softening (also known as lime buttering, lime-soda treatment, or Clark's process) [1] is a type of water treatment used for water softening, which uses the addition of limewater (calcium hydroxide) to remove hardness (deposits of calcium and magnesium salts) by precipitation.

  3. Shreveport Water Department addresses historic levels of ...

    www.aol.com/shreveport-water-department...

    The Shreveport Department of Water and Sewerage cleans Manganese from a tank at the T L Amiss Water Purification Plant on Tuesday afternoon, July 30, 2024. Maple-Lars said the water department is ...

  4. Potassium permanganate - Wikipedia

    en.wikipedia.org/wiki/Potassium_permanganate

    It is used as a regeneration chemical to remove iron and hydrogen sulfide (rotten egg smell) from well water via a "manganese greensand" filter. "Pot-Perm" is also obtainable at pool supply stores and is used additionally to treat wastewater. Historically it was used to disinfect drinking water [37] [38] and can turn the water pink. [39]

  5. Hypolimnetic aeration - Wikipedia

    en.wikipedia.org/wiki/Hypolimnetic_aeration

    While iron and manganese are essential trace elements in drinking water, slightly elevated concentrations of these elements are undesirable from a technical and hygienic standpoint. [6] Under low oxygen conditions, iron and manganese dissolve as ions, with the majority existing as soluble ferrous or manganese compounds.

  6. Karen Johnson (scientist) - Wikipedia

    en.wikipedia.org/wiki/Karen_Johnson_(scientist)

    Manganese in mine water and its removal by passive treatment (2002) Karen L. Johnson is a British geologist who is a professor in environmental engineering at Durham University . She was awarded the 2023 Royal Society Rosalind Franklin Award .

  7. Manganese cycle - Wikipedia

    en.wikipedia.org/wiki/Manganese_cycle

    The manganese cycle is the biogeochemical ... This global model found strong removal rates of Mn as water moves from the Atlantic Ocean surface to the North ...

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