©BRIGHTSTARS EXAM SOLUTIONS
10/21/2024 9:24 PM
Level 2 Wastewater Exam Questions And
Answers 100% Pass.
Detention Time - answer✔Wastewater should remain in clarifier long enough to allow settling
for solid particles. If the tank is too small for the quantity of flow and the settling rate of the
particles, too many particles will be carried out the effluent of the clarifier.
Calculating Detention Time - answer✔1. Flow in gallons per day
2. Tank dimensions or volume
Detention Time Hours for Settling Tanks - answer✔2.0-3.0 Hours
Trickling Filter Description - answer✔large diameter, shallow, cylindrical structures filled with
stone or plastic media and has an overhead distributor.
3 basic parts of trickling filters - answer✔1. The media (and retaining structure)
2. The under drain system
3. The distribution system
Zoogleal Film - answer✔slime growth that contains the living organisms that break down the
organic material.
Trickling Filter Media - answer✔rock, slag, coal, bricks, redwood blocks, molded plastic, or any
other durable material.
Trickling Filter Media Stacking - answer✔provide empty spaces (voids) for air to ventilate the
filter and keep conditions aerobic.
Aerobic - answer✔a condition in which "free" or dissolved oxygen is present int he aquatic
environment.
Anaerobic - answer✔a condition in which "free" or dissolved oxygen is NOT present int he
aquatic environment.
Chemical Formula Ammonia - answer✔NH3
10/21/2024 9:24 PM
Level 2 Wastewater Exam Questions And
Answers 100% Pass.
Detention Time - answer✔Wastewater should remain in clarifier long enough to allow settling
for solid particles. If the tank is too small for the quantity of flow and the settling rate of the
particles, too many particles will be carried out the effluent of the clarifier.
Calculating Detention Time - answer✔1. Flow in gallons per day
2. Tank dimensions or volume
Detention Time Hours for Settling Tanks - answer✔2.0-3.0 Hours
Trickling Filter Description - answer✔large diameter, shallow, cylindrical structures filled with
stone or plastic media and has an overhead distributor.
3 basic parts of trickling filters - answer✔1. The media (and retaining structure)
2. The under drain system
3. The distribution system
Zoogleal Film - answer✔slime growth that contains the living organisms that break down the
organic material.
Trickling Filter Media - answer✔rock, slag, coal, bricks, redwood blocks, molded plastic, or any
other durable material.
Trickling Filter Media Stacking - answer✔provide empty spaces (voids) for air to ventilate the
filter and keep conditions aerobic.
Aerobic - answer✔a condition in which "free" or dissolved oxygen is present int he aquatic
environment.
Anaerobic - answer✔a condition in which "free" or dissolved oxygen is NOT present int he
aquatic environment.
Chemical Formula Ammonia - answer✔NH3
