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  2. Ceramic water filter - Wikipedia

    en.wikipedia.org/wiki/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 .

  3. Portable water purification - Wikipedia

    en.wikipedia.org/wiki/Portable_water_purification

    The Portable Aqua Unit for Lifesaving (short PAUL) is a portable ultrafiltration-based membrane water filter for humanitarian aid. It allows the decentralized supply of clean water in emergency and disaster situations for about 400 persons per unit per day. The filter is designed to function with neither chemicals nor energy nor trained personnel.

  4. 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 ...

  5. Sand filter - Wikipedia

    en.wikipedia.org/wiki/Sand_filter

    The filter sand takes up most space of the chamber. It sits either on a nozzle floor or on top of a drainage system which allows the filtered water to exit. The pre-treated raw water enters the filter chamber on the top, flows through the filter medium and the effluent drains through the drainage system in the lower part.

  6. Best water bottles for hiking 2022: durable bottles for the ...

    www.aol.com/news/best-water-bottles-hiking-2022...

    The best water bottles for hiking are a convenient way to stay hydrated while out walking. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 ...

  7. Rapid sand filter - Wikipedia

    en.wikipedia.org/wiki/Rapid_sand_filter

    Chemical additives, such as coagulants, are often used in conjunction with the filtration system. [1]: 7–9 The two types of rapid sand filter are the gravity type (e.g. Paterson's filter) and pressure type (e.g. Candy's filter). A disinfection system (typically using chlorine or ozone) is commonly used following filtration.

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