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  2. Sand filter - Wikipedia

    en.wikipedia.org/wiki/Sand_filter

    The supernatant water is then run back into the treatment process or disposed of as a waste-water stream. In some countries, the sludge may be used as a soil conditioner. Inadequate filter maintenance has been the cause of occasional drinking water contamination. Sand filters are occasionally used in the sewage treatment as a

  3. Rapid sand filter - Wikipedia

    en.wikipedia.org/wiki/Rapid_sand_filter

    The rapid sand filter or rapid gravity filter is a type of filter used in water purification and is commonly used in municipal drinking water facilities as part of a multiple-stage treatment system. [1]

  4. Slow sand filter - Wikipedia

    en.wikipedia.org/wiki/Slow_sand_filter

    Water treatment came to the United States in 1872 when Poughkeepsie, New York, opened the first slow sand filtration plant, [7] dramatically reducing instances of cholera and typhoid fever which had been seriously impacting the local community. Poughkeepsie's design criteria were used throughout the country as a model for other municipalities.

  5. McMillan Sand Filtration Site - Wikipedia

    en.wikipedia.org/wiki/McMillan_Sand_Filtration_Site

    McMillan Sand Filtration Site is a twenty-five acre decommissioned water treatment plant in northwest Washington, D.C., built as part of the historic McMillan Reservoir Park. It is bound on the north by Michigan Avenue, on the east by North Capitol Street , on the south by Channing Street and on the west by McMillan Drive; which runs along the ...

  6. List of wastewater treatment technologies - Wikipedia

    en.wikipedia.org/wiki/List_of_wastewater...

    Organisms used in water purification; Parallel plate oil–water separator; Photobioreactor; Reed bed; Regenerative thermal oxidizer; Retention basin; Reverse osmosis; Rotating biological contactor; Sand filter; Screen filter; Sedimentation (water treatment) Septic tank; Septic tank conversion [2] Sequencing batch reactor; Sewage treatment ...

  7. Sand separator - Wikipedia

    en.wikipedia.org/wiki/Sand_separator

    A sand separator is a device that separates sand or other solids from water. [1] [2] One version of sand separator utilizes centrifugal force to separate sand or other heavy particles out of the water. The separated material drops down into a tank or reservoir where it can be removed later or in the case of in-well separators, the separated ...

  8. South Treatment Plant - Wikipedia

    en.wikipedia.org/wiki/South_Treatment_Plant

    The plant has septage disposal facilities, serving businesses and commercial facilities. [16] In addition to wastewater treatment, the facility has an educational role, with public tours and a demonstration garden. [17] The plant lies at a low elevation in the Green River valley, and is vulnerable to flooding.

  9. Thomas P. Smith Water Reclamation Facility - Wikipedia

    en.wikipedia.org/wiki/Thomas_P._Smith_Water...

    With the first expansion in the 1970s the facility was renamed to the Thomas P. Smith Wastewater Treatment Facility. This expansion added an activated sludge treatment train with surface aerators, increasing the capacity of the facility. In the 1980s the capacity was increased again with the addition of another activated sludge treatment train ...

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