Various Types Scales formation in Cooling Tower Water Treatment
The different kind of scales that occur in cooling tower water treatment system are,
1. Calcium carbonate Scale:
Results primarily from localized heating of water containing calcium bicarbonate. Calcium carbonate scale formation can be controlled by pH adjustment.
2. Calcium sulfate scale:
Usually form as gypsum is more than 100 times as soluble as calcium at normal cooling water temperature. It can be usually be avoided by appropriate blow down rates.
3. Calcium and Magnesium Silicate scale:
Both can form in cooling water system. This scale formation can normally be avoided by limiting calcium, magnesium and silica concentrations through chemical treatment or blow down.
4. Calcium Phosphate scale:
Results from a reaction between calcium salts and orthophosphate, which may be introduced into the system via inadequately treated wastewater or inadvertent reversion of polyphosphate inhibitors present in recycled water.
The most common type of scaling is formed by carbonate and bicarbonates of calcium and magnesium, as well as iron salts in water. Calcium dominates in fresh water while magnesium dominates in sea water.
Our Tiaano’s Chemical Free Electrolytic Scale Remover will helps to prevent these kind of scale in cooling tower water treatment by electrolytic method.
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