Review questions - LearnH2O

Review questions

Review questions

  1. The three basic components of a trickling filter are the ___________ system, the filter ________, and the ______________ system.
  2. The slime layer of organisms on the filter media is known as
    1. Suspended growth
    2. Organism film
    3. Mature growth
    4. Zoogleal film
  3. Trickling filter distribution systems can be
    1. Solid or perforated
    2. Rotating or stationary
    3. Level or sloped
    4. None of the above
  4. Using the following information, calculate the organic loading rate of the trickling filter in lbs BOD/day/1000 ft3.
  5. Trickling filters should always be preceded by a ___________ ___________.
  6. Which of the following statements is true?
    1. Trickling filter media never clogs.
    2. Trickling filters are high maintenance.
    3. Trickling filters can attract flies.
    4. None of the above.
  7. Excessive ____________ can cause hydraulic overload of a trickling filter.
    1. Effluent flow
    2. Ponding
    3. Recirculation
    4. None of the above
  8. Trickling filters operated is series will often include the use of an
    1. Intermediate clarifier
    2. Intermediate digester
    3. Intermediate anoxic zone
    4. None of the above
  9. If the influent flow to a trickling filter is 400,000 gpd and the recycle rate is 75 gpm, what is the total flow through the filter?
    1. 475,000 gpd
    2. 508,000 gpd
    3. 5 MGD
    4. 475,000 gpm
  10. Stay rods supporting the rotating arm and are also used to
    1. Flush debris from the arm
    2. Distribute filter media
    3. Level the arm
    4. Distribute flow