CLINT'S ABC WASTEWATER
EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS
First action for a polymer spill? - CORRECT ANSWER-Apply an
absorbent to dispel such as sand or kitty litter and then sweep up the
materials
Total discharge head includes? - CORRECT ANSWER-Discharge
pressure head + static discharge head + velocity head + friction head
Where is the best location to collect a sample? - CORRECT ANSWER-
A location that represents the entire waste stream or basin
Preservation and holding times for BOD samples - CORRECT ANSWER-
48 hours at<=6 degrees centigrade
Define BOD - CORRECT ANSWER-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 - CORRECT ANSWER-To allow residual
samples to cool prior to weighing
What will happen if the flow to the grit chamber is too low? -
CORRECT ANSWER-Too much organic material will be deposited
How does an operator control the suspended solids in an activated
sludge basin? - CORRECT ANSWER-Wasting in return activated sludge
Chlorine combines with ammonia to form what? - CORRECT ANSWER-
Chloramines
What can the operator control with the activated sludge process? -
CORRECT ANSWER-Flow, detention time, wasting and return rates
What is the best way to control filamentous bacteria? - CORRECT
ANSWER-Addition of chlorine to the return sludge
EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS
First action for a polymer spill? - CORRECT ANSWER-Apply an
absorbent to dispel such as sand or kitty litter and then sweep up the
materials
Total discharge head includes? - CORRECT ANSWER-Discharge
pressure head + static discharge head + velocity head + friction head
Where is the best location to collect a sample? - CORRECT ANSWER-
A location that represents the entire waste stream or basin
Preservation and holding times for BOD samples - CORRECT ANSWER-
48 hours at<=6 degrees centigrade
Define BOD - CORRECT ANSWER-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 - CORRECT ANSWER-To allow residual
samples to cool prior to weighing
What will happen if the flow to the grit chamber is too low? -
CORRECT ANSWER-Too much organic material will be deposited
How does an operator control the suspended solids in an activated
sludge basin? - CORRECT ANSWER-Wasting in return activated sludge
Chlorine combines with ammonia to form what? - CORRECT ANSWER-
Chloramines
What can the operator control with the activated sludge process? -
CORRECT ANSWER-Flow, detention time, wasting and return rates
What is the best way to control filamentous bacteria? - CORRECT
ANSWER-Addition of chlorine to the return sludge
