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Underwater pipelines

Infrastructures or treatment activities can demand the discharge of the un-treated or partially purified water at considerable distances from the coastline (or at the coastline in cases of large freshwater bodies) by means of pipes called underwater pipelines. These installations on the sea bed can either be freely supported or embedded in an excavated or dredged trench which is then filled, protecting it against possible scouring, and in both cases with anchoring elements. The outlet can be equipped with volute chambers to help with the discharge dilution within the environment.

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Underwater pipelines