Computer · Environmental Engineering

Which of the following statements is TRUE regarding the use of polymers in sludge treatment?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1Because of its high viscosity, a Mannich polymer may be difficult to pump.✓
2A dry polymer is always a better choice for application in centrifuges than any liquid polymer solution.
3Cationic polymers are high-molecular-weight organic compounds carrying a negative charge.
4Alum is frequently used along with an anionic polymer when dewatering anaerobically digested sludge using a belt press.

Correct answer

Because of its high viscosity, a Mannich polymer may be difficult to pump.

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