Question

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♧Topic : Water Treatment (Scales and sludges in Industries)

★ What are methods to prevent the scales and sludges on Boilers?

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Answer 1

Answer:

1. (i) Colloidal conditioning : In low-pressure boilers, scale formation can be avoided by adding organic substances like kerosene, tannin, agar-agar (a gel), etc., which get coated over the forming precipitates, thereby yielding non-sticky and loose deposits, which can easily be removed by pre-determined blow-down ..

Explanation:

Water treatment is any process that improves the quality of water to make it appropriate for a specific end-use. The end use may be drinking, industrial water supply, irrigation, river flow maintenance, water recreation or many other uses, including being safely returned to the environment.