Wastewater Treatment Test – 1

1. In which unit operation objectionable solutes are converted into unobjectionable forms without removal?

2. Which of the following process is used to remove the colloidal particles from the effluent?

3. Solids are removed from the wastewater by which of the following unit operation?

4. Flocculation of iron from water by the addition of lime is an example of which of the following process?

5. Which form of solute stabilization occurs when effluent passes through limestone?

6. How many types of aerators are commonly used in the treatment of wastewater?

7. By which process, odor producing substances are oxidized?

8. In which process, excess lime is converted into bicarbonate?

9. Organic contaminants are removed from the wastewater by ____________

10. In which unit operation, gases are released or absorbed in the effluent?