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Cooling Water Systems India and Cooling Water Problems in India |
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CONTROL OF SCALE AND FOULING
The control of scaling and fouling is part of a complete cooling water treatment
program, which cannot approached without considering the overall program. We
control foulants and scale in two ways.
1. Control the level of scaling and fouling related water contaminants:
This is done by several means, depending on the nature of the foulants in
question. The primary means of limiting contaminants in a cooling water system
is by a continuous proportional system bleed. By bleeding the system, you remove
the concentrated foulants, which cause scaling, or fouling. Controlled bleed off
provides a stable system so that chemical treatment can be effective.
A supplemental method limiting the concentration of water borne contaminants is
through mechanical means such as ion exchange or side-stream filtration. Ion
exchange is used where large amounts of hardness and dissolved materials are
present in the makeup water. Side-stream filtration is used to remove suspended
matter such as mud, silt, and microbial matter. Removing suspended matter helps
the overall water management program's success by eliminating deposit-causing
substances, as well as chemical treatment products to work more effectively.
2. Addition of chemical antifoulants and scale control agents:
Every cooling water system requires chemicals to prevent fouling and scale
formation. All multifunctional cooling water treatment products contain a
variety of materials to prevent scale, from polymeric dispersants to complex
organic antiscalants. The proportionate addition of these products allows you to
operate cooling systems at much higher cycles of concentration. This results in
water saving for the customer and more efficient systems.
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