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Question
Oxidation ponds involve ______.
Options
chemical removal of pollutants
biological reduction of organic matter
mechanical screening of solids
biological oxidation of sewage
MCQ
Fill in the Blanks
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Solution
Oxidation ponds involve biological oxidation of sewage.
Explanation:
Oxidation ponds are biological treatment systems where microorganisms (bacteria and algae) decompose organic matter present in sewage. The process is aerobic, meaning it uses oxygen to oxidize organic waste materials into stable, harmless end products like carbon dioxide, water, and nitrates.
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