Radioactive substances present in the polluted water stream can be removed by_________________?
Correct answer: A. Adsorption in ion exchange materials
- A. Adsorption in ion exchange materials
- B. Coagulation and filtration
- C. Biological oxygen treatment
- D. None of these
Explanation
Radioactive ions in wastewater can be captured by ion-exchange materials, which replace the dissolved radioactive ions with harmless counter-ions. Biological treatment and ordinary coagulation mainly remove biodegradable matter and suspended particles.
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