Determine the MCRT using the following:
Known:
Aerator volume = 323,000 gal
Final clarifier vol. = 150,000 gal
Flow = 2 MGD
Waste flow = 20,000gal
MLSS = 2,400 mg/L
Waste sludge SS = 6400 mg/L
Final eff. SS = 16 mg/L
A. 3.3 days
B. 4.8 days
C. 2.7 days
D. 4.1 days
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B. 4.8 days
,The removal of nitrogen and phosphorus are?
A. Useful in the growth of algae
B. Advanced secondary treatment
C. General practice in extended aeration
D. Prevents anaerobic conditions
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B. Advanced secondary treatment
What chemical would be used on a sample to be used for TSS test?
A. Sodium Thiosulfate
B. DPD
C. Nitriver
D. Nothing
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D. Nothing
Which of the following substances is highly viscous and very slippery?
A. Calcium hypochlorite
B. Calcium oxide
C. Potassium permanganate
D. Polymer
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, D. Polymer
In an anaerobic digester, when the VA/ALK ratio starts to increase, what will be
noticeable?
A. An increase in Co2 & decrease in pH
B. A decrease in Co2 & increase in pH
C. Optimum operation
D. an increase in Co2 & increase in pH
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A. An increase in Co2 & decrease in pH
The advantage of an anaerobic digester over an aerobic digester is?
A. Less solids
B. Increased power consumption
C. Decrease power consumption
D. Easier to operate
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C. Decrease power consumption
What should you do if your samples come to the lab and have settled to the bottom?
A. Discard
B. Mix them well
, C. Re-Sample
D. Run tests
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B. Mix them well
What should be the maximum allowable level of TSS and BOD in the eff. of a domestic
w/w facility in accordance with FAC?
A. 20 TSS, 20 BOD or 80% removal
B. 30 TSS, 30 BOD or 90% removal
C. 20 TSS, 30 BOD or 90% removal
D. 20 TSS, 20 BOD or 90% removal
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D. 20 TSS, 20 BOD or 90% removal
What is the min. depth of a pond?
A. 6 ft
B. 10 ft
C. 4 ft
D. 3 ft
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D. 3 ft
Known:
Aerator volume = 323,000 gal
Final clarifier vol. = 150,000 gal
Flow = 2 MGD
Waste flow = 20,000gal
MLSS = 2,400 mg/L
Waste sludge SS = 6400 mg/L
Final eff. SS = 16 mg/L
A. 3.3 days
B. 4.8 days
C. 2.7 days
D. 4.1 days
Give this one a try later!
B. 4.8 days
,The removal of nitrogen and phosphorus are?
A. Useful in the growth of algae
B. Advanced secondary treatment
C. General practice in extended aeration
D. Prevents anaerobic conditions
Give this one a try later!
B. Advanced secondary treatment
What chemical would be used on a sample to be used for TSS test?
A. Sodium Thiosulfate
B. DPD
C. Nitriver
D. Nothing
Give this one a try later!
D. Nothing
Which of the following substances is highly viscous and very slippery?
A. Calcium hypochlorite
B. Calcium oxide
C. Potassium permanganate
D. Polymer
Give this one a try later!
, D. Polymer
In an anaerobic digester, when the VA/ALK ratio starts to increase, what will be
noticeable?
A. An increase in Co2 & decrease in pH
B. A decrease in Co2 & increase in pH
C. Optimum operation
D. an increase in Co2 & increase in pH
Give this one a try later!
A. An increase in Co2 & decrease in pH
The advantage of an anaerobic digester over an aerobic digester is?
A. Less solids
B. Increased power consumption
C. Decrease power consumption
D. Easier to operate
Give this one a try later!
C. Decrease power consumption
What should you do if your samples come to the lab and have settled to the bottom?
A. Discard
B. Mix them well
, C. Re-Sample
D. Run tests
Give this one a try later!
B. Mix them well
What should be the maximum allowable level of TSS and BOD in the eff. of a domestic
w/w facility in accordance with FAC?
A. 20 TSS, 20 BOD or 80% removal
B. 30 TSS, 30 BOD or 90% removal
C. 20 TSS, 30 BOD or 90% removal
D. 20 TSS, 20 BOD or 90% removal
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D. 20 TSS, 20 BOD or 90% removal
What is the min. depth of a pond?
A. 6 ft
B. 10 ft
C. 4 ft
D. 3 ft
Give this one a try later!
D. 3 ft
