Environment & Ecology · Environmental Engineering
Which of the following processes is NOT categorized as a preliminary treatment of sewage?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Removal of grit and sand
- 2Removal of oils and grease
- 3Removal of pathogens and chlorination✓
- 4Removal of floating materials
Correct answer
Removal of pathogens and chlorination
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