Degasser Tower

Water treatment plants using RO, DM or EDI systems often face resistivity of the outlet water, which occurs due to increased level of carbon dioxide in the water. Carbon Dioxide present in water may cause frequent regeneration in Ion Exchangers (DM and Water Softener); in addition, Reverse Osmosis and Electrodeionization Systems (EDI) produce higher quality water if the CO2 has been removed effectively. Therefore, in order to remove or decrease level of Dissolved Carbon Dioxide (CO2), Degasifier or Degasser system is used.
Degasser is an integral part of any demineralization plant, where it is generally placed between cation and anion exchanges and removes Carbon Dioxide, which is generated by dissociation of carbonic acid at cation outlet water. In this Degassing processes, Degasser Tower is utilized, which is made from either FRP or Mild Steel with rubber lined or epoxy coating. Low air pressure is generated at the bottom of the tower that drives out CO2 and the degassed water is collected in a sump beneath the tower.