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  2. Cured-in-place pipe - Wikipedia

    en.wikipedia.org/wiki/Cured-in-place_pipe

    It is a jointless, seamless pipe lining within an existing pipe. As one of the most widely used rehabilitation methods, CIPP has applications in sewer, water, gas, chemical and district heating pipelines ranging in diameter from 0.1 to 2.8 meters (2–110 inches).

  3. Sprayed in place pipe - Wikipedia

    en.wikipedia.org/wiki/Sprayed_in_place_pipe

    Sprayed in place pipe (SIPP) technologies is a trench-less rehabilitation method used to repair existing pipelines, that involves a robotic lining system that develops and manufactures proprietary lining polymeric. SIPP is a jointless, seamless, pipe with in a pipe with the capability to rehabilitate pipes ranging in diameter of .1 to 2.8 ...

  4. Biogenic sulfide corrosion - Wikipedia

    en.wikipedia.org/wiki/Biogenic_sulfide_corrosion

    In sewerage areas where biogenic sulfide corrosion is expected, acid-resistant materials like calcium aluminate cements, PVC or vitrified clay pipe may be substituted to ordinary concrete or steel sewers. Existing structures that have extensive exposure to biogenic corrosion such as sewer manholes and pump station wet wells can be rehabilitated.

  5. City sewer rates could hike 4% over next four years to pay ...

    www.aol.com/city-sewer-rates-could-hike...

    The projected $138 million includes $15 million for replacement of UV disinfection equipment, $3 million for sewer line rehabilitation and $120 million for a treatment plant.

  6. Cost estimate - Wikipedia

    en.wikipedia.org/wiki/Cost_estimate

    A cost estimate is often used to establish a budget as the cost constraint for a project or operation. In project management, project cost management is a major functional division. Cost estimating is one of three activities performed in project cost management. [3] In cost engineering, cost estimation is a basic activity. A cost engineering ...

  7. Sliplining - Wikipedia

    en.wikipedia.org/wiki/Sliplining

    It involves installing a smaller, "carrier pipe" into a larger "host pipe", grouting the annular space between the two pipes, and sealing the ends. Sliplining has been used since the 1940s. [1] The most common material used to slipline an existing pipe is high-density polyethylene (HDPE), but fiberglass-reinforced pipe (FRP) and PVC are also ...

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