circulation-hydraulique The process of vacuum column inherently ensures the function of water circulation required on most aquaculture or water treatment facilities with the best energetic performances ever met. The column replaces not only the usual treatment systems, but also the pumping system: an all-in-one economic solution.

The COLDEP process, based on the airlift principle, can move large volumes of water with a very low energy consumption:

  • Without external flow resistance, the energy cost is 5W/m3 of displaced water
  • COLDEP system can achieve flow rates from 20 to 500 m3/h and by combining multiple systems one can go much further....
  • Treatment with free passage (without filter) preventss clogging
  • The only limitation of the system is its ability to lift water, with a maximum of fifty centimeters