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  2. Media filter - Wikipedia

    en.wikipedia.org/wiki/Media_filter

    A media filter is a type of filter that uses a bed of sand, peat, shredded tires, foam, crushed glass, geo-textile fabric, anthracite, crushed granite or other material to filter water for drinking, swimming pools, aquaculture, irrigation, stormwater management, oil and gas operations, and other applications. Each layer of media is designed to ...

  3. HEPA - Wikipedia

    en.wikipedia.org/wiki/HEPA

    HEPA filters, as defined by the United States Department of Energy (DOE) standard adopted by most American industries, remove at least 99.97% of aerosols 0.3 micrometers (μm) in diameter. The filter's minimal resistance to airflow, or pressure drop, is usually specified around 300 pascals (0.044 psi) at its nominal volumetric flow rate.

  4. NTSC - Wikipedia

    en.wikipedia.org/wiki/NTSC

    NTSC (from National Television System Committee) is the first American standard for analog television, published in 1941. [1] In 1961, it was assigned the designation System M. It is also known as EIA standard 170. [2] In 1953, a second NTSC standard was adopted, which allowed for color television broadcast compatible with the existing stock of ...

  5. Median filter - Wikipedia

    en.wikipedia.org/wiki/Median_filter

    The median filter operates by considering a local window (also known as a kernel) around each pixel in the image. The steps for applying the median filter are as follows: Choose a window of a specific size (e.g., 3x3, 5x5) centered around the pixel to be filtered. For our example, let’s use a 3x3 window.

  6. API oil–water separator - Wikipedia

    en.wikipedia.org/wiki/API_oil–water_separator

    An API oil–water separator is a device designed to separate gross amounts of oil and suspended solids from industrial wastewater produced at oil refineries, petrochemical plants, chemical plants, natural gas processing plants and other industrial oily water sources. The API separator is a gravity separation device designed by using Stokes Law ...

  7. Filter press - Wikipedia

    en.wikipedia.org/wiki/Filter_press

    An industrial filter press is a tool used in separation processes, specifically to separate solids and liquids. The machine stacks many filter elements and allows the filter to be easily opened to remove the filtered solids, and allows easy cleaning or replacement of the filter media. Filter presses cannot be operated in a continuous process ...

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