Dissolved gas management

The airlift vacuum column allows to increase or reduce the gas content in treated water: carbon dioxide, nitrogen, oxygen... applications are numerous. COLDEP technology brings a new high performance and low energy solution. echange-gazeux-coldep


The injection of gas bubbles in the column allows simple gas exchange. The vacuum allows to increase the performance of these exchanges significantly:

  • In gas-stripping mode, a level of 30 ppb can be reached fairly quickly
  • In gas injection mode, micro bubbles can easely be dissolved, up to several liters per minute without loss in the atmosphere
  • Both functions can be combined: stripping before injecting the gas replacement