WATR 081 - Spring 2022 Module 5 Assessment Quiz
18 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What percentage of settleable solids can a well-operated primary clarifier remove?

  • 90% (correct)
  • 50%
  • 70%
  • 80%

    • Can operators use sludge blanket levels in primary clarifiers to adjust sludge pumping rates?

  • No
  • Yes (correct)
  • It depends
  • Sometimes

    • Do baffles ahead of outlet weirs in primary tanks serve as a barrier to inhibit the loss of floating solids and grease?

  • Only on sunny days
  • It depends on the design
  • No
  • Yes (correct)

    • If a primary clarifier does not have adequate detention time, what would be the result?

    <p>Overloading of collector or flight drive motor</p> Signup and view all the answers

    What happens if the sludge depth in a secondary sedimentation tank is too high?

    <p>Sludge may become septic</p> Signup and view all the answers

    At a 2.5 MGD wastewater treatment plant, if the primary clarifier has a detention time of 2 hours, how many gallons does this clarifier hold?

    <p>$10,000$ gallons</p> Signup and view all the answers

    What percentage of settleable solids can a well-operated primary clarifier remove?

    <p>90-95%</p> Signup and view all the answers

    Can operators use sludge blanket levels in primary clarifiers to adjust sludge pumping rates?

    <p>True</p> Signup and view all the answers

    Do baffles ahead of outlet weirs in primary tanks serve as a barrier to inhibit the loss of floating solids and grease?

    <p>True</p> Signup and view all the answers

    What would be the result if a primary clarifier does not have adequate detention time?

    <p>Overloading of collector or flight drive motor</p> Signup and view all the answers

    If the sludge depth in a secondary sedimentation tank is too high, what will happen?

    <p>Sludge may become septic</p> Signup and view all the answers

    At a 2.5 MGD wastewater treatment plant, if the primary clarifier has a detention time of 2 hours, how many gallons does this clarifier hold?

    <p>$10,000$ gallons</p> Signup and view all the answers

    What percentage of settleable solids can a well-operated primary clarifier remove?

    <p>90-95%</p> Signup and view all the answers

    Can operators use sludge blanket levels in primary clarifiers to adjust sludge pumping rates?

    <p>True</p> Signup and view all the answers

    Do baffles ahead of outlet weirs in primary tanks serve as a physical barrier to inhibit the loss of floating solids and grease?

    <p>True</p> Signup and view all the answers

    If the sludge depth in a secondary sedimentation tank is too high, what will happen?

    <p>Sludge may become septic</p> Signup and view all the answers

    What would be the result if a primary clarifier does not have adequate detention time?

    <p>Overloading of collector or flight drive motor</p> Signup and view all the answers

    At a 2.5 MGD wastewater treatment plant, if the primary clarifier has a detention time of 2 hours, how many gallons does this clarifier hold?

    <p>15,000 gallons</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser