Cooling Tower Chemicals

 Benefits of RapidOxide(Liq. ClO2) in Cooling Water System

Benefits of ClO2 `s biofilm removal capacity which Chlorine Compounds Does not have

1) ClO2 Increase the heat transfer rate: biofilm and inorganic deposition has a lowthermal conductivity because of that there is a heat transfer loss but ClO2 can easilyremove Biofilm and increase the heat transfer rate which chlorine cannot do.

2) ClO2 Reduces the Corrosion Rate: due to electrochemical cell formation in the biofilmand blocking of the contact of any corrosion inhibitor with the metal corrosion rateincreases, but ClO2 remove the biofilm from the surface of metal and reduce thecorrosion rate.And another reason is, on the bases of chemical properties Chlorine is more corrosive incomparison with ClO2 so it will reduce the quantity Corrosion inhibiter also.

3) ClO2 reduces the Pumping energy to circulate the cooling water: the presence of abiofilm which has a high friction factor increases the demand of pumping energy. ClO2reduces the requirement pumping energy by removing the biofilm.

Other Benefits of Chlorine Dioxide

1) Effective at higher temperatures: ClO2 is very effective at the higher temperature alsobecause it does not disassociate from the water as rapidly as chlorine (Chlorine Gasdisassociate from the water at near about 40oC)

2) Chlorine Dioxide is not pH dependent: In case of chlorine if the cooling water pH is 6 to7.5 it can work but outside of this range it cannot work on the other hand in case of ClO2it can work very well between 5 pH to 11 pH.

3) Chlorine Dioxide can reduce the chances of Legionnaires disease: the main cause ofthis disease is legionella bacteria in water systems Chlorine Dioxide can easily kill thisbacteria

4) Chlorine dioxide also does not react with most of the organic compound which are use asan anti scaling agent and other water treatment chemicals present in the cooling water.

5) The dosage required for biocidal control remains fairly constant over a wide range ofcooling water conditions.