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  2. Water softening - Wikipedia

    en.wikipedia.org/wiki/Water_softening

    Such systems do not remove minerals from the water itself. Rather, they can only alter the downstream effects that the mineral-bearing water would otherwise have. These systems do not fall within the term "water softening" but rather "water conditioning". [citation needed] Similar claims for magnetic water treatment are not considered to be ...

  3. Ion exchange - Wikipedia

    en.wikipedia.org/wiki/Ion_exchange

    Another application for ion exchange in domestic water treatment is the removal of nitrate and natural organic matter. In domestic filtration systems ion exchange is one of the alternatives for water softening in households along with reverse osmosis (RO) membranes.

  4. SHARON Wastewater Treatment - Wikipedia

    en.wikipedia.org/wiki/SHARON_Wastewater_Treatment

    SHARON (Single reactor system for High activity Ammonium Removal Over Nitrite) is a sewage treatment process. A partial nitrification process of sewage treatment used for the removal of ammonia and organic nitrogen components from wastewater flow streams. The process results in stable nitrite formation, rather than complete oxidation to nitrate.

  5. Sewage treatment - Wikipedia

    en.wikipedia.org/wiki/Sewage_treatment

    Nitrite and nitrate may also have public health significance if concentrations are high in drinking water, because of a disease called metahemoglobinemia. [4]: 42 Phosphorus removal is important as phosphorus is a limiting nutrient for algae growth in many fresh water systems. Therefore, an excess of phosphorus can lead to eutrophication.

  6. Biosand filter - Wikipedia

    en.wikipedia.org/wiki/BioSand_Filter

    The system was developed from the slow sand filter, a technology that has been used for drinking water purification since the 1800s. [3] Initial lab and field tests were conducted in 1991; the system was patented in 1993 [ 4 ] and was implemented in the field in Nicaragua .

  7. Advanced oxidation process - Wikipedia

    en.wikipedia.org/wiki/Advanced_oxidation_process

    Advanced oxidation processes (AOPs), in a broad sense, are a set of chemical treatment procedures designed to remove organic (and sometimes inorganic) materials in water and wastewater by oxidation through reactions with hydroxyl radicals (·OH). [1]

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