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MariettaO [177]
3 years ago
6

How is fluorine separated from other materials found with it?

Biology
1 answer:
MatroZZZ [7]3 years ago
6 0

The following processes are used for fluorine removal:

<span>1.      </span>filtration through activated alumina- this is the most widely used process

<span>2.      </span>coagulation-flocculation – or aluminum sulphate treatment - can only be used on raw water that requires sedimentation and that has low fluoride content.

<span>3.      </span>lime used to soften water -<span>This method can be used but with a pH >10 and provided that the water has a sufficient magnesium level (high) because it is the magnesium oxide that will adsorb the fluorine. Approximately 50 mg · L–1 of magnesium is required to remove 1 mg · L–1 of fluorine.</span>

<span>4.      </span>using tricalcium phosphate

<span>5.      </span>other processes

<span>·         </span>reverse osmosis

<span>·         </span><span>Electrodialysis </span>

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