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  2. Portable water purification - Wikipedia

    en.wikipedia.org/wiki/Portable_water_purification

    Instead of using the static pressure of a water supply line to force the water through the filter, pressure is provided by a hand-operated pump. These devices can generate drinkable water from seawater. The Portable Aqua Unit for Lifesaving (short PAUL) is a portable ultrafiltration-based membrane water filter for humanitarian aid. It allows ...

  3. Water filter - Wikipedia

    en.wikipedia.org/wiki/Water_filter

    A new and advanced water purification system using reverse osmosis (RO) technology ensures 99.9% sterilization, effectively removing bacteria, viruses, dissolved salts, and heavy metals. The RO process provides high precision filtration , typically down to 0.0001 microns, ensuring the removal of harmful contaminants while preserving the purity ...

  4. Slow sand filter - Wikipedia

    en.wikipedia.org/wiki/Slow_sand_filter

    As water passes through the hypogeal layer, particles of foreign matter are trapped in the mucilaginous matrix and soluble organic material is adsorbed. The contaminants are metabolised by the bacteria, fungi and protozoa. The water produced from an exemplary slow sand filter is of excellent quality with 90–99% bacterial cell count reduction ...

  5. Water purification - Wikipedia

    en.wikipedia.org/wiki/Water_purification

    Water purification can reduce the concentration of particulate matter including suspended particles, parasites, bacteria, algae, viruses, and fungi as well as reduce the concentration of a range of dissolved and particulate matter. The standards for drinking water quality are typically set by governments or by international standards. These ...

  6. Biosand filter - Wikipedia

    en.wikipedia.org/wiki/BioSand_Filter

    A biosand filter (BSF) is a point-of-use water treatment system adapted from traditional slow sand filters. Biosand filters remove pathogens and suspended solids from water using biological and physical processes that take place in a sand column covered with a biofilm .

  7. 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 .

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