Computer · Environmental Engineering
Which of the following statements is/are correct in relation to water sedimentation with coagulation? 1. Coagulation is usually found necessary for water having turbidity greater than 30-50 ppm. 2. Alum produces a heavier floc compared with iron salt coagulants. 3. It is relatively difficult to dewater the gelatinous sludge formed by alum coagulant.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Statements 1 and 3 are correct, while statement 2 is incorrect.✓
- 2Statement 1 is incorrect, while statements 2 and 3 are correct.
- 3Statement 1 is correct, while statements 2 and 3 are incorrect.
- 4Statements 1 and 2 are correct, while statement 3 is incorrect.
Correct answer
Statements 1 and 3 are correct, while statement 2 is incorrect.
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