Activated Sludge Process MCQ

Test your knowledge with important Activated Sludge Process MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Activated Sludge Process MCQs at Bissoy

• Calculate the BOD load for the following data. Flow: 800 m3/d BOD load: 1000 mg/L
  ক

  1000 kg/d

  খ

  800 kg/d

  গ

  500 kg/d

  ঘ

  1500 kg/d
• While designing an aeration tank for the ASP what is the volumetric organic loading rate considered?
  ক

  0.3-3

  খ

  0.03-0.2

  গ

  3-5

  ঘ

  5-7
• What is the typical value of the F/M ratio considered for an extended ASP process?
  ক

  0.04 g/g.d

  খ

  0.1 g/g.d

  গ

  0.4 g/g.d

  ঘ

  0.01 g/g.d
• What is the typical value of the F/M ratio considered for an ASP process?
  ক

  0.04 g/g.d

  খ

  0.1 g/g.d

  গ

  0.4 g/g.d

  ঘ

  0.01 g/g.d
• For the removal of phosphorous through Activated Sludge Process (ASP) what would be the Solid retention time considered?
  ক

  18 hours

  খ

  1-2 days

  গ

  10 hrs

  ঘ

  2-4 days
• For the removal of nitrogen completely through Activated Sludge Process (ASP) what would be the Solid retention time considered?
  ক

  3-18 days

  খ

  1-2 days

  গ

  12 hours

  ঘ

  18 hours
• For the development of flocculent biomass for treating industrial water through Activated Sludge Process (ASP) what would be the Solid retention time considered?
  ক

  18 hours

  খ

  3-5 days

  গ

  20 hrs

  ঘ

  1-3 days
• For the development of flocculent biomass for treating domestic water through Activated Sludge Process (ASP) what would be the Solid retention time considered?
  ক

  18 hours

  খ

  4 days

  গ

  10 hrs

  ঘ

  1-3 days
• For the conversion of particulate organics through Activated Sludge Process (ASP) what would be the Solid retention time considered?
  ক

  18 hours

  খ

  1-2 days

  গ

  2-4 days

  ঘ

  5 days
• For the removal of BOD through Activated Sludge Process (ASP) what would be the Solid retention time considered?
  ক

  18 hours

  খ

  1-2 days

  গ

  10 hrs

  ঘ

  3 days
• Calculate the volume of the aeration tank required for the following data: Flow: 800 m3/d BOD: 1000 mg/L F/M ratio: 0.15(extended aeration) MLSS : 3500 mg/L
  ক

  High sludge volume index

  খ

  Low sludge volume index

  গ

  Low oxygen demand

  ঘ

  Floc formation is less
• _______ provides the dual purpose of providing DO and mixing of the mixed liquor and wastewater.
  ক

  Flocculation

  খ

  Aeration

  গ

  Sedimentation

  ঘ

  Clarification
• When the aeration system shuts off, the basin begins to perform as a ______
  ক

  Primary clarifier

  খ

  Secondary clarifier

  গ

  Anaerobic unit

  ঘ

  Aeration unit
• SBR operates as ________ process.
  ক

  Batch

  খ

  Continuous

  গ

  Semi-continuous

  ঘ

  Discontinuous
• What does SBR stand for?
  ক

  Secondary batch reactor

  খ

  Sequential biological reactor

  গ

  Secondary biological reactor

  ঘ

  Sequential batch reactor
• ________ combines aeration basin and secondary clarifier into single unit.
  ক

  Primary clarifier

  খ

  Aerobic unit

  গ

  Sequential batch reactor

  ঘ

  Secondary clarifier
• Activated sludge process can be used for treating all types of wastewater.
  ক

  True

  খ

  False
• What does the bacterium use to grow?
  ক

  Oxygen

  খ

  Organic pollutants

  গ

  Water

  ঘ

  Carbon-dioxide
• What is required to keep the activated sludge suspended?
  ক

  Carbon-dioxide

  খ

  Nitrogen

  গ

  Oxygen

  ঘ

  Ammonia
• Activated sludge process degrade organics and _________
  ক

  Improve nutrients

  খ

  Remove nutrients

  গ

  Remove odour

  ঘ

  Remove taste
• Activated sludge process uses micro-organisms to degrade organics from wastewater.
  ক

  True

  খ

  False