Q.1
What is the retention time considered for the anaerobic zone for the AO process for removing phosphorus?
  • a) 0.5-1.5 hrs
  • b) 1.5-2 hrs
  • c) 2-4 hrs
  • d) 4-8 hrs
Q.2
What is the retention time considered for the aerobic zone for the AO process for removing phosphorus?
  • a) 1-3 hrs
  • b) 3-5 hrs
  • c) 5-8 hrs
  • d) 8-11 hrs
Q.3
What is the retention time considered for the anaerobic zone for the Aprocess for removing phosphorus?
  • a) 0.5-1.5 hrs
  • b) 1.5-2 hrs
  • c) 5-7 hrs
  • d) 3-4 hrs
Q.4
What is the retention time considered for the aerobic zone for the Aprocess for removing phosphorus?
  • a) 0.5-1.5 hrs
  • b) 1.5-3 hrs
  • c) 3-4 hrs
  • d) 4-8 hrs
Q.5
What is the retention time considered for the anoxic zone for the Aprocess for removing phosphorus?
  • a) 0.5-1 hrs
  • b) 1-2 hrs
  • c) 2-4 hrs
  • d) 4-6 hrs
Q.6
What is the retention time considered for the anoxic zone for the University of Cape Town treatment process for removing phosphorus?
  • a) 2-4 hrs
  • b) 4-6 hrs
  • c) 6-8 hrs
  • d) 8-10 hrs
Q.7
What is the retention time considered for the anaerobic zone for the University of Cape Town treatment process for removing phosphorus?
  • a) 1-2 hrs
  • b) 3-4 hrs
  • c) 4-8 hrs
  • d) 8-12 hrs
Q.8
What is the retention time considered for the aerobic zone for the University of Cape Town treatment process for removing phosphorus?
  • a) 4-12 hrs
  • b) 3-4 hrs
  • c) 1-2 hrs
  • d) 5-6 hrs
Q.9
What is the retention time considered for the aerobic zone for the Virginia Initiative Plant treatment process for removing phosphorus?
  • a) 4-6 hrs
  • b) 10-12 hrs
  • c) 2-4 hrs
  • d) 1-2 hrs
Q.10
What is the retention time considered for the aerobic zone for the Virginia Initiative Plant treatment process for removing phosphorus?
  • a) 3-5 hrs
  • b) 7-9 hrs
  • c) 1-2 hrs
  • d) 4-6 hrs
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