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  2. Air gap (plumbing) - Wikipedia

    en.wikipedia.org/wiki/Air_gap_(plumbing)

    An air gap, as related to the plumbing trade, is the unobstructed vertical space between the water outlet and the flood level of a fixture. [1] Air gaps of appropriate design are legally required by water health and safety regulations in many countries. An air gap is the simplest form of a backflow prevention device.

  3. 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.

  4. Copper zinc water filtration - Wikipedia

    en.wikipedia.org/wiki/Copper_zinc_water_filtration

    Copper zinc water filtration. Copper zinc water filtration is a high-purity brass water filtration process that relies on the redox potential of dissolved oxygen in water in the presence of a zinc anode and copper cathode. It uses dissolved impurities within water as constituent substrate, which are reduced to more physiologically inert compounds.

  5. Ultrafiltration - Wikipedia

    en.wikipedia.org/wiki/Ultrafiltration

    Ultrafiltration. Ultrafiltration (UF) is a variety of membrane filtration in which forces such as pressure or concentration gradients lead to a separation through a semipermeable membrane. Suspended solids and solutes of high molecular weight are retained in the so-called retentate, while water and low molecular weight solutes pass through the ...

  6. Reverse osmosis - Wikipedia

    en.wikipedia.org/wiki/Reverse_osmosis

    Reverse osmosis (RO) is a water purification process that uses a semi-permeable membrane to separate water molecules from other substances. RO applies pressure to overcome osmotic pressure that favors even distributions. RO can remove dissolved or suspended chemical species as well as biological substances (principally bacteria), and is used in ...

  7. Point of use water filter - Wikipedia

    en.wikipedia.org/wiki/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 fails or is unavailable.

  8. Category:Water filters - Wikipedia

    en.wikipedia.org/wiki/Category:Water_filters

    C. Ceramic water filter. Chamberland filter. Coffee filter. Copper zinc water filtration. Cross-flow filtration.

  9. Ceramic water filter - Wikipedia

    en.wikipedia.org/wiki/Ceramic_water_filter

    A Victorian ceramic water filter. Ceramic water filters (CWF) are an inexpensive and effective type of water filter that rely on the small pore size of ceramic material to filter dirt, debris, and bacteria out of water. This makes them ideal for use in developing countries, [1] and portable ceramic filters are commonly used in backpacking.

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