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  2. Clean-in-place - Wikipedia

    en.wikipedia.org/wiki/Clean-in-place

    In addition, CIP systems can be built into the borehole headworks to permit the injection of cleaning solutions (such as sodium hypochlorite or other sanitizers) and the subsequent recirculation of the mix of these chemicals and the groundwater. This process cleans the borehole interior and equipment without any invasive maintenance being required.

  3. Tube cleaning - Wikipedia

    en.wikipedia.org/wiki/Tube_cleaning

    Chemical tube cleaning is understood to be the use of cleaning liquids or chemicals for removing layers and deposits. A typical example is the deliming of a coffee maker where scale is removed by means of acetic acid or citric acid. Depending on the field of application and tube material, special cleaning liquids may be used which also require ...

  4. Pigging - Wikipedia

    en.wikipedia.org/wiki/Pigging

    A cleaning pig for a 710-millimetre (28 in) oil pipeline. The blue plastic disks seal against the inside of the pipe to propel the device and to remove loose sedimentation or scale buildup. The black rectangles at the top and the circular disks in the center are magnets to attract and remove any loose metal objects in the pipe.

  5. Black powder in gas pipelines - Wikipedia

    en.wikipedia.org/wiki/Black_powder_in_gas_pipelines

    Within pipeline transmission systems, ever-present moisture catalyzes bacterial and chemical corrosion of the carbon steel walls within pipelines and storage reservoirs. In refineries, process plants, and storage reservoirs, if H2S is present, it will corrode all carbon steel components creating more black powder.

  6. Hydraulically activated pipeline pigging - Wikipedia

    en.wikipedia.org/wiki/Hydraulically_Activated...

    Hydraulically activated pipeline pigging (HAPP) is a pigging technology applied for pipeline cleaning. The basic principle is that a pressure drop is created over a by-passable pig held back against a pipeline's fluid flow. The pipeline fluid passing through the pigs cleaning head is accelerated by this pressure drop, forming strong cleaning jets.

  7. Washdown - Wikipedia

    en.wikipedia.org/wiki/Washdown

    High-pressure cleaning is used with water and cleaning chemicals. [ 1 ] [ 2 ] A washdown is usually a manual operation and is designed to kill bacteria and other microorganisms . Automatic cleaning of industrial equipment is often carried out by clean-in-place (CIP) and/or steam-in-place (SIP) operations.

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