Water quality control is crucial for cooling towers.
Overdosing chemicals can cause corrosion, while under dosing can lead to biological growth and scaling.
So what should we do?
Regular testing, optimized dosing, cleaning, and maintenance are essential for balanced water treatment.
Discovering main reason of corrosion. In some cases that , Water quality factors affecting scale and corrosion in cooling towers, pH: 7.2-7.8 Hardness:
High levels lead to scale.
Alkalinity: Buffers pH.
TDS: High levels can cause scale and corrosion.
Chlorides/Sulfates: Corrosive.
Langelier Index: Indicates scale formation tendency.
If everything is fine , now you can check operation parameters:-
Blowdown rate: Adequate.
Water distribution: Even.
Air flow: Sufficient.
Chemical treatment:Biocide levels: Adequate.
Scale inhibitor: Sufficient.
Corrosion inhibitor: Sufficient.
Chemical compatibility: Ensure compatibility.
So,what should be checked in next ?
You should check design including: –
Material selection: Compatible materials.
Design considerations: Minimize dead zones and promote water flow.