1
How did the Stargard project redesign the layout of mixers in the tank?
2
Where do vortices develop if the propeller is too close to the water surface?
3
Which of these describe the specific mixing power?
4
What is the main purpose of a closed loop tank?
5
What are deadzones?
6
Which of these isn’t a main target for wastewater mixers?
Test results
Congratulations. You have passed the test and completed the Mixing in Wastewater Treatment
Achieved badges:
01.
Q: How did the Stargard project redesign the layout of mixers in the tank?
A: They gathered four mixers in the middle of the tank
01.
Q: How did the Stargard project redesign the layout of mixers in the tank?
A: They spread four mixers across the tank
01.
Q: How did the Stargard project redesign the layout of mixers in the tank?
A: They remained in the same position, but were replaced with more powerful mixers
02.
Q: Where do vortices develop if the propeller is too close to the water surface?
A: At the front of the propeller
02.
Q: Where do vortices develop if the propeller is too close to the water surface?
A: At the rear of the propeller
02.
Q: Where do vortices develop if the propeller is too close to the water surface?
A: Underneath the propeller
03.
Q: Which of these describe the specific mixing power?
A: The ratio between the propeller power and the liquid volume
03.
Q: Which of these describe the specific mixing power?
A: The ratio between the liquid volume and the solid particles
03.
Q: Which of these describe the specific mixing power?
A: The ratio between the propeller power and propeller size
04.
Q: What is the main purpose of a closed loop tank?
A: To create a steady, circulated flow
04.
Q: What is the main purpose of a closed loop tank?
A: To ensure a more energy-efficient solution
04.
Q: What is the main purpose of a closed loop tank?
A: To prevent damaging backflow
05.
Q: What are deadzones?
A: Areas that are compromised during the mixing process
05.
Q: What are deadzones?
A: Areas consisting of infected water
05.
Q: What are deadzones?
A: Areas in which the homogeneity is high
06.
Q: Which of these isn’t a main target for wastewater mixers?
A: To blend liquid with solid particles
06.
Q: Which of these isn’t a main target for wastewater mixers?
A: To ensure quick drainage from the tank
06.
Q: Which of these isn’t a main target for wastewater mixers?
A: To keep solid particles in suspension