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Generate QuizWhich of the following is a common method for removing heavy metals from industrial wastewater?
- Filtration through sand only
- Chemical precipitation, ion exchange, or adsorption
- Dilution with clean water
- Evaporation to dryness
Answer: Chemical precipitation, ion exchange, or adsorption
These treatment methods convert dissolved metals into insoluble forms or bind them to media for removal, preventing aquatic toxicity.