GCSE Earth and Space – Treating waste water

Last updated: 21/03/2021
GCSE Science – Irish Junior Cycle (Biology, Chemistry, Physics, Earth and Space) The Earth and atmosphere GCSE Earth and Space – Treating waste water

Learning Objectives

-I can describe the screening stage of water treatment
-I can describe the settling stage of water treatment
-I can describe the filtration stage of water treatment

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20
  21. 21
  22. 22
  23. 23
  24. 24
  25. 25
  1. Current
  2. Review
  3. Answered

  1. Where does waste water go?

    • 1.
    • 2.
    • 3.
    • 4.

  2. When treating waste water, what does the screening process remove?

    • 1.
    • 2.
    • 3.
    • 4.

  3. When treating waste water, what does the screening process remove?

    • 1.
    • 2.
    • 3.
    • 4.

  4. How does the screening processes filter waste water?

    • 1.
    • 2.
    • 3.
    • 4.

  5. What happens to waste water in the first circular tank?

    • 1.
    • 2.
    • 3.
    • 4.

  6. Within the first circular tank, what substance gets pushed towards the centre of the tank?

    • 1.
    • 2.
    • 3.
    • 4.

  7. Where is the sludge in the first circular tank pumped to?

    • 1.
    • 2.
    • 3.
    • 4.

  8. What is the name of the liquid layer above the sludge in the first circular tank?

    • 1.
    • 2.
    • 3.
    • 4.

  9. What does the liquid above the sludge in the first circular tank contain?

    • 1.
    • 2.
    • 3.
    • 4.

  10. What is added to the waste water during the secondary treatment?

    • 1.
    • 2.
    • 3.
    • 4.

  11. How are the harmful microorganisms removed during the secondary treatment of waste water?

    • 1.
    • 2.
    • 3.
    • 4.

  12. What process does the bacteria carry out during the secondary treatment of waste water?

    • 1.
    • 2.
    • 3.
    • 4.

  13. What is bubbled through the circular tank during the secondary treatment of waste water?

    • 1.
    • 2.
    • 3.
    • 4.

  14. What does bacteria need in order to carry out aerobic respiration?

    • 1.
    • 2.
    • 3.
    • 4.

  15. What is settled out during the final treatment of waste water?

    • 1.
    • 2.
    • 3.
    • 4.

  16. During the final treatment of waste water, what is the bacteria settled out as?

    • 1.
    • 2.
    • 3.
    • 4.

  17. What is done to the bacteria during the final treatment of waste water?

    • 1.
    • 2.
    • 3.
    • 4.

  18. At the final stage of the treatment of waste water, where is the water released?

    • 1.
    • 2.
    • 3.
    • 4.

  19. When purifying water, what is removed?

    • 1.
    • 2.
    • 3.
    • 4.

  20. What process is carried out during the purifying of water?

    • 1.
    • 2.
    • 3.
    • 4.

  21. Once water is distilled, what is left?

    • 1.
    • 2.
    • 3.
    • 4.

  22. Once water is distilled, what is left?

    • 1.
    • 2.
    • 3.
    • 4.

  23. What is the definition of flask distillation?

    • 1.
    • 2.
    • 3.
    • 4.

  24. Describe the cost of distillation.

    • 1.
    • 2.
    • 3.
    • 4.

  25. How is water purified?

    • 1.
    • 2.
    • 3.
    • 4.