Greek Jeopardy

1
Cumulative Final Exam Review Jeopardy
Waterworks Operations III WQT 131
2
Corrosion
Fluoride
Chlorine
Disinfection
200
200
200
200
400
400
400
400
600
600
600
600
800
800
800
800
1000
1000
1000
1000
FINAL JEOPARDY
3
Disinfection 200

• Plant that contained UV for disinfection

4
Disinfection 400
Three disadvantages of UV
5
Disinfection 600

The wave length range used to destroy DNA via UV?
6
Disinfection 800
Three advantages of ozone
7
Disinfection 1000

Three disadvantages of chlorine dioxide?
8
Disinfection 200-Answer

• What is Canby WTP?

9
Disinfection 400-Answer

• Color less then 15 units
• Turbidity must be less then 1.0 ntu
• Hardness
• Natural Organic Matter
• Inorganics (Iron and Manganeselamp stain)
• Mercury in Low pressure and Med lamps
• Lamp longevity (8,000-10,000 hrs)
• Shallow water depth
• No residual
• Cant measure dosage
• Does not kill viruses

10
Disinfection 600-Answer

• What is 250-270 nm?

11
Disinfection 800-Answer

• No toxic residual!
• Increases dissolved oxygen levels
• No ammonia demand at pH gt 9
• Instantaneous disinfection low contact time
• No DBP or THM
• Effective disinfection over wide range of pH and
  Temp

12
Disinfection 1000-Answer

• High cost of sodium chlorite (NaClO2)
• Chlorine (Cl2) gas safety and handling issues
• Can still form chlorates (CLO3) and chlorite
  (ClO2) DPBs
• Can react with bromide

13
Chlorine 200

• Adjusting chlorine residual after treatment

14
Chlorine 400

• Control taste, odor, and aid before
  coagulation/filtration

15
Chlorine 600

• Chlorine in contact with organics and ammonia
  form what two compounds?

16
Chlorine 800

• Chlorine destroyed by reducing agents, clay, and
  silt?

17
Chlorine 1000

• Beyond breakpoint these two types of chlorine
  compounds dominates

Daily Double
18
Chlorine 200-Answer

• What is post chlorination?

19
Chlorine 400-Answer

What is pre-chlorination?
20
Chlorine 600-Answer

• What is chloroorganics and chloramines?

21
Chlorine 800-Answer

• What is chlorine demand?

22
Chlorine 1000-Answer
23
Corrosion 200

• Most common chemical used in the US for pH
  adjustment

24
Corrosion 400

The rule that requires pH to be raised after
treatment
25
Corrosion 600

• Cation rich substance shown here

26
Corrosion 800
Video Daily Double
27
Corrosion 1000

• The process that uses limestone and salt to make
  soda ash

28
Corrosion 200-Answer

• What is lime (CaO)?

29
Corrosion 400-Answer
What is Lead and Copper Rule?
30
Corrosion 600-Answer

• What is scale?

31
Corrosion 800-Answer

• What is Langelier Saturation Index?

32
Corrosion 1000-Answer

• What is Solvay Process?

33
Fluoride 200

What percent of US citizens are on public
fluoridated water supplies
34
Fluoride 400
Another name for hydrofluorosilicic acid
35
Fluoride 600

• Two common types of solid fluoride used in
  fluoridation

36
Fluoride 800

• Disease shown here

37
Fluoride 1000

Instrument shown here
Video Daily Double
38
Fluoride 200-Answer

• What is 66?

39
Fluoride 400-Answer

• What is silly acid?

40
Fluoride 600-Answer

• What is sodium flouride and sodium fluorosilicate?

41
Fluoride 800-Answer

• What is dental fluorosis?

42
Fluoride 1000-Answer

• What is a solution feeder?

43
Final Jeopardy

• Chlorinaton

44
Final Jeopardy
Label and describe what is happening in each zone
(include X)
X
45
Final Jeopardy
Label and describe what is happening in each zone
(include X)
46
Breakpoint Chlorination

• Zone I Chlorine is destroyed by reducing agents
  such as iron, manganese, clay and silt. Chlorine
  reduced to chloride
• Zone II Chlorine comes into contact with
  organics and ammonia. Chloroorganics and
  chloramines are formed.
• Zone III Chloroorganics and chloramines are
  partially destroyed. Chloramines are broken down
  and converted to nitrogen gas which leaves the
  system
• Zone IV Breakpoint. Beyond this point, free
  available residual is formed. Some
  chloroorganics still remain as combined residual.
  
• Chlorine demand is difference between applied
  chlorine and the chlorine residual at any two
  points on the breakpoint curve.