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ECADEMY test

20 - Mixing in Wastewater Treatment

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Correct
Q: How much was the average velocity of the volume improved by?
A: 30%
Correct
Q: Where do vortices develop if the propeller is too close to the water surface?
A: At the rear of the propeller
Correct
Q: Why is it important to position mixers correctly?
A: To maximise the total bulk flow
Correct
Q: What are deadzones?
A: Areas that are compromised during the mixing process
Correct
Q: What is the main purpose of a closed loop tank?
A: To create a steady, circulated flow
Correct
Q: Which of these describe the specific mixing power?
A: The ratio between the propeller power and the liquid volume