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  2. Water chlorination - Wikipedia

    en.wikipedia.org/wiki/Water_chlorination

    Water chlorination is the process of adding chlorine or chlorine compounds such as sodium hypochlorite to water. This method is used to kill bacteria, viruses and other microbes in water. This method is used to kill bacteria, viruses and other microbes in water.

  3. Water treatment - Wikipedia

    en.wikipedia.org/wiki/Water_treatment

    Dalecarlia Water Treatment Plant, Washington, D.C. Water treatment is any process that improves the quality of water to make it appropriate for a specific end-use. The end use may be drinking, industrial water supply, irrigation, river flow maintenance, water recreation or many other uses, including being safely returned to the environment.

  4. Biological roles of the elements - Wikipedia

    en.wikipedia.org/wiki/Biological_roles_of_the...

    chlorine: 17: 5a: Chlorine salts are critical for many species, including humans. [11] Its ion is used as an electrolyte, as well as making the hydrochloric acid the stomach uses for digestion. [36] Excessive blood chlorides (hyperchloemia) are a symptom of several diseases; but the condition itself does not have symptoms. [37] Elemental Cl 2 ...

  5. Chlorine - Wikipedia

    en.wikipedia.org/wiki/Chlorine

    Evaporation under reduced pressure allows it to be concentrated further to about 40%, but then it decomposes to perchloric acid, chlorine, oxygen, water, and chlorine dioxide. Its most important salt is sodium chlorate, mostly used to make chlorine dioxide to bleach paper pulp. The decomposition of chlorate to chloride and oxygen is a common ...

  6. Chlorine cycle - Wikipedia

    en.wikipedia.org/wiki/Chlorine_cycle

    Chlorine's ability to completely dissociate in water is also why it is an essential electrolyte in many biological processes. [6] Chlorine, along with phosphorus, is the sixth most common element in organic matter. [1] Cells utilize chloride to balance pH and maintain turgor pressure at equilibrium.

  7. Chloramination - Wikipedia

    en.wikipedia.org/wiki/Chloramination

    Chloramination is the treatment of drinking water with a chloramine disinfectant. [1] Both chlorine and small amounts of ammonia are added to the water one at a time which react together to form chloramine (also called combined chlorine), a long lasting disinfectant. Chloramine disinfection is used in both small and large water treatment plants.

  8. Explainer-What is fluoride and why is it added to the US ...

    www.aol.com/news/explainer-fluoride-why-added-us...

    Here is what you need to know about fluoridation of drinking water as a public health measure. Fluoride is a mineral that occurs naturally in water, soil and air that has been demonstrated to ...

  9. Bleach - Wikipedia

    en.wikipedia.org/wiki/Bleach

    The grade of chlorine-based bleaches is often expressed as percent active chlorine. One gram of 100% active chlorine bleach has the same bleaching power as one gram of elemental chlorine. The most common chlorine-based bleaches are: Sodium hypochlorite (NaClO), usually as a 3–6% solution in water, usually called "liquid bleach" or just "bleach".