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  2. Water filter - Wikipedia

    en.wikipedia.org/wiki/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 irrigation, accessible drinking water, public and private aquariums, and the safe use of ponds and swimming pools.

  3. Reverse osmosis - Wikipedia

    en.wikipedia.org/wiki/Reverse_osmosis

    Around the world, household drinking water purification systems, including a RO step, are commonly used for improving water for drinking and cooking. Such systems typically include these steps: a sediment filter to trap particles, including rust and calcium carbonate

  4. Water purification - Wikipedia

    en.wikipedia.org/wiki/Water_purification

    For drinking water, membrane filters can remove virtually all particles larger than 0.2 μm—including giardia and cryptosporidium. Membrane filters are an effective form of tertiary treatment when it is desired to reuse the water for industry, for limited domestic purposes, or before discharging the water into a river that is used by towns ...

  5. History of water filters - Wikipedia

    en.wikipedia.org/wiki/History_of_water_filters

    Automatic pressure filters, where the water is forced under pressure through the filtration system, were innovated in 1899 in England. [9] Limited drinking water standards were first implemented in the US in 1914, but it would not be until the 1940s that federal drinking water standards were widely applied.

  6. Point of use water filter - Wikipedia

    en.wikipedia.org/wiki/Point_of_use_water_filter

    Point of use water filter. Point of use water filters are used in individual houses or offices to provide filtration of potable water close to the point of consumption. [1] The related topic, Point of use water treatment describes full-scale water treatment options and technologies designed to serve communities when municipal water treatment ...

  7. Tap water - Wikipedia

    en.wikipedia.org/wiki/Tap_water

    Tap water (also known as running water, piped water or municipal water) is water supplied through a tap, a water dispenser valve. In many countries, tap water usually has the quality of drinking water. Tap water is commonly used for drinking, cooking, washing, and toilet flushing. Indoor tap water is distributed through indoor plumbing, which ...

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