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  2. Copper zinc water filtration - Wikipedia

    en.wikipedia.org/wiki/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.

  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 purification - Wikipedia

    en.wikipedia.org/wiki/Water_purification

    Slow "artificial" filtration (a variation of bank filtration) into the ground at the Water purification plant Káraný, Czech Republic A profile of layers of gravel, sand and fine sand used in a slow sand filter plant. Slow sand filters may be used where there is sufficient land and space, as the water flows very slowly through the filters ...

  5. Bioretention - Wikipedia

    en.wikipedia.org/wiki/Bioretention

    Additionally, heavy metals may adsorb to soil particles in the bioretention media as the runoff filters through. [7] In laboratory experiments, bioretention cells removed 94%, 88%, 95%, and >95% of zinc, copper, lead, and cadmium, respectively from water with metal concentrations typical of stormwater runoff. While this is a great benefit for ...

  6. Water filter - Wikipedia

    en.wikipedia.org/wiki/Water_filter

    Water filters produced in Toledo, Ohio in 1895 out of terracotta A large-scale flocculation 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 ...

  7. Industrial wastewater treatment - Wikipedia

    en.wikipedia.org/wiki/Industrial_wastewater...

    Brine treatment is commonly encountered when treating cooling tower blowdown, produced water from steam-assisted gravity drainage (SAGD), produced water from natural gas extraction such as coal seam gas, frac flowback water, acid mine or acid rock drainage, reverse osmosis reject, chlor-alkali wastewater, pulp and paper mill effluent, and waste ...

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