The pollutants like phenol, Na and Hg can be removed from water by technique/s such as:
Correct answer: A. Both (a) & (b)
- A. Both (a) & (b)
- B. Electrodialysis
- C. Reverse osmosis
- D. None of these
Explanation
Reverse osmosis removes many dissolved organic compounds and ions, while electrodialysis is particularly useful for removing ionisable salts and metals such as sodium and mercury. Thus both listed membrane or electro-membrane techniques can be used, depending on the contaminant and treatment design.
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