Treated Water

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Definition - What does Treated Water mean?

Treated water is water that has been made safe for reuse or discharge to the environment, after having been chemically or biological polluted. Treated water has great importance in industrial applications as well as safe drinking.

Untreated water is a great threat to human health, industrial processes as well as the environment. Treated water saves industrial equipment and water supply lines from corrosion.

Corrosionpedia explains Treated Water

Treated water is water which has been purified, removing existing water contaminants or reducing their concentration so that the water becomes fit for its desired use.

The processes involved in treating water for drinking may involve solids separation using physical processes like settling and filtration as well as chemical processes such as disinfection and coagulation. Two of the main processes of treating water for industrial use are boiler water treatment and cooling water treatment.

A lack of proper water treatment can lead to the reaction of solids and bacteria within pipes and boiler housings. Steam boilers can suffer from scale or corrosion when left untreated, leading to weak and dangerous machinery.

Corrosion in low-pressure boilers can be caused by dissolved oxygen, acidity and excessive alkalinity. Water treatment therefore should remove the dissolved oxygen and maintain the boiler water at the appropriate pH and alkalinity levels. Without effective water treatment, a cooling water system can suffer from:

  • Scale formation
  • Corrosion
  • Fouling
  • Bacteria

Scale deposits can mean additional fuel is required to heat the same level of water because of the drop in efficiency. This reduces efficiency, shortens plant life and makes operations unreliable and unsafe.

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