Cumulative Final Exam Review: Waterworks Operations III - Jeopardy Style

1. Cumulative Final Exam Review Jeopardy Waterworks Operations III WQT 134

2. Source H2O Intake/Screens Pretreatment Coagulation $100 $100 $100 $100 $200 $200 $200 $200 $300 $300 $300 $300 $400 $400 $400 $400 $500 $500 $500 $500 FINAL JEOPARDY

3. Source Water $100 Plant whose intake screen is situated in the “sweet spot” of the Willamette river

4. Source Water $200 Plant that uses GAC to treat organics from its source water

5. Source Water $300 1996 flooding of this river destroyed a pump station

6. Source Water $400 Two plants that remove water from the Molalla river

7. Source Water $500 Three plants we visited that use the Clackamas river for source water

8. Source water $100-Answer What is the Willamette Water Treatment Plant?

9. Source water $200-Answer What is the Willamette Water Treatment Plant?

10. Source water $300-Answer What is the Molalla River?

11. Source water $400-Answer What is the Molalla Water Treatment Plant and the Canby Water Treatment Plant?

12. Source water $500-Answer What is the Clackamas, North Clackamas, and Lake Oswego Water Treatment Plants?

13. Intake/Screens$100 Purpose of using screens?

14. Intake/Screens$200 Type of screen that has straight steel bars welded at both ends at 60-80o angles

15. Intake/Screens$300 Type of screen shown here

16. Intake/Screens$400 Type of instrument shown here

17. Intake/Screens$500 Type of screen shown here

18. Intake/Screens$100-Answer What is used to remove debris and prevent clogging of the intake.

19. Intake/Screens$200-Answer What is a bar screen?

20. Intake/Screens$300-Answer What is a bar screen?

21. Intake/Screens$400-Answer What is traveling wire screen?

22. Intake/Screens$500-Answer What is a fine-wire mesh screen?

23. Pretreatment $100 Mechanical sand and grit removal device shown here

24. Pretreatment $200 Function of this device?

25. Pretreatment $300 This 25 year old device is used before filtration

26. Pretreatment $400 The device shown here for pretreatment before membrane filtration?

27. Pretreatment $500 A concave depression in the bottom of a structure to collect sediment ?

28. Pretreatment $100-Answer What is the cyclone degritter?

29. Pretreatment $200-Answer What is to prevent short circuiting, slows the movement of water down to aid in floc removal?

30. Pretreatment $300-Answer What is a redwood baffle?

31. Pretreatment $400-Answer What is a strainer?

32. Pretreatment $500-Answer What is a sand trap?

33. Coagulation $100 _________ mixing occurs during coagulation

34. Coagulation $200 Typical charge on troublesome particles to be removed from water Daily Double

35. Coagulation $300 Two trivalent ions used for coagulation

36. Coagulation $400 Name four types of coagulants

37. Coagulation $500 Three functions/advantages of using anionic polyelectrolytes polymers

38. Coagulation100 $ Answer What is rapid or flash mixing?

39. Coagulation $200-Answer What is negative?

40. Coagulation $300-Answer What are iron and aluminum?

41. Coagulation $400-Answer What are ALUM or aluminum sulfate ACH or aluminum chlorohydrate Ferric chloride, Ferric or ferrous sulfate, Aluminum polymers, Cationic, anionic, or nonionic polyelectrolytes Sodium aluminate, Sodium silicate

42. Coagulation $500-Answer What are increased floc size, improved settling, stronger floc. Not effected by pH, alkalinity, hardness, or turbidity.

43. Final Jeopardy Coagulant Aids

44. Final Jeopardy What is a coagulant aid and what are three types of coagulant aids??

45. Final Jeopardy-Answer • They are Activated silica, weighting agents like bentonite clay, and polyelectrolytes. • Stronger more settable flocs • Overcome the effect of temp drops that slow coagulation • Reduce the amount of coagulant needed • Reduce the amount of sludge produced.