Clint's ABC Wastewater Exam Questions
First action for a polymer spill? Ans- Apply an absorbent to dispel such as sand or kitty litter and then
sweep up the materials
Total discharge head includes? Ans- Discharge pressure head + static discharge head + velocity head +
friction head
Where is ...
Clint's ABC Wastewater Exam Questions
First action for a polymer spill? Ans- Apply an absorbent to dispel such as sand or kitty litter and then
sweep up the materials
Total discharge head includes? Ans- Discharge pressure head + static discharge head + velocity head +
friction head
Where is the best location to collect a sample? Ans- A location that represents the entire waste stream
or basin
Preservation and holding times for BOD samples Ans- 48 hours at<=6 degrees centigrade
Define BOD Ans- The rate at which organisms use the oxygen in water or wastewater while stabilizing
decomposable organic matter under aerobic conditions. And decomposition, organic matter serves as
food for the bacteria and energy results from its oxidation. VOD measurements are used as a measure of
the organic strength of wastes and water
Purpose of a desiccator Ans- To allow residual samples to cool prior to weighing
What will happen if the flow to the grit chamber is too low? Ans- Too much organic material will be
deposited
How does an operator control the suspended solids in an activated sludge basin? Ans- Wasting in return
activated sludge
Chlorine combines with ammonia to form what? Ans- Chloramines
What can the operator control with the activated sludge process? Ans- Flow, detention time, wasting
and return rates
What is the best way to control filamentous bacteria? Ans- Addition of chlorine to the return sludge
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