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  2. Water storage - Wikipedia

    en.wikipedia.org/wiki/Water_storage

    Fill the tank completely with clean water, close the lid and leave to stand for 24 hours. [16] Flush: After the chlorine solution has sat in the tank for 24 hours, flush out/empty the storage tank. Do not drain the tank into a septic system or adjacent surface water body.

  3. Chlorine cycle - Wikipedia

    en.wikipedia.org/wiki/Chlorine_cycle

    The largest reservoir of chlorine resides in the lithosphere, where 2.2 × 10 22 kg of global chlorine is found in Earth's mantle. [2] Volcanic eruptions will sporadically release high levels of chlorine as HCl into the troposphere , but the majority of the terrestrial chlorine flux comes from seawater sources mixing with the mantle.

  4. Water chlorination - Wikipedia

    en.wikipedia.org/wiki/Water_chlorination

    Checking chlorine level of the local water source in La Paz, Honduras. 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.

  5. Water purification - Wikipedia

    en.wikipedia.org/wiki/Water_purification

    Chlorine is a strong oxidant that rapidly kills many harmful micro-organisms. Because chlorine is a toxic gas, there is a danger of a release associated with its use. This problem is avoided by the use of sodium hypochlorite, which is a relatively inexpensive solution used in household bleach that releases free chlorine when dissolved in water ...

  6. Natural environment - Wikipedia

    en.wikipedia.org/wiki/Natural_environment

    Many natural substances may be present in tiny amounts in an unfiltered air sample, including dust, pollen and spores, sea spray, volcanic ash and meteoroids. Various industrial pollutants also may be present, such as chlorine (elementary or in compounds), fluorine compounds, elemental mercury, and sulphur compounds such as sulphur dioxide (SO 2).

  7. Slow sand filter - Wikipedia

    en.wikipedia.org/wiki/Slow_sand_filter

    The length and breadth of the tanks are determined by the flow rate desired for the filters, which typically have a loading rate of 200–400 litres (0.20–0.40 m 3) per square metre per hour. Slow sand filters differ from all other filters used to treat drinking water in that they work by using a complex biofilm that grows naturally on the ...

  8. Chlorine production - Wikipedia

    en.wikipedia.org/wiki/Chlorine_production

    Chlorine can be manufactured by the electrolysis of a sodium chloride solution , which is known as the Chloralkali process. The production of chlorine results in the co-products caustic soda (sodium hydroxide, NaOH) and hydrogen gas (H 2). These two products, as well as chlorine itself, are highly reactive.

  9. Liquefaction of gases - Wikipedia

    en.wikipedia.org/wiki/Liquefaction_of_gases

    Liquefaction is used for analyzing the fundamental properties of gas molecules (intermolecular forces), or for the storage of gases, for example: LPG, and in refrigeration and air conditioning. There the gas is liquefied in the condenser , where the heat of vaporization is released, and evaporated in the evaporator , where the heat of ...