Which material is used in contact filters for the removal of fluorides?

Related MCQs

• Which material is used for removing fluorides from hard water containing 3ppm of fluorides?
• Fluorides in solution form are preferred over powdered form for fluoridation.
• Which material is used for pipes which are in contact with milk or product?
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• Which device solved the problem of unstable hydraulic conditions and operation of sludge removal equipment?
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• Which material is used for pipes which conduct waste?
• Which method is used to measure the color of water?
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