Multiple Choice
Activated sludge usually employs an aeration period of ________________
A) 1 hour
B) 24 hours
C) 10-15 hours
D) 4-8 hours
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q10: What is the wastewater called as after
Q11: In the concept of self purification of
Q12: In which of the following treatment involve
Q13: What is the objective of water quality
Q14: What is the minimum amount of DO
Q16: Belt filter presses are used in which
Q17: Trickling filter is used in which of
Q18: Biological process is used to remove _<br>A)Settleable
Q19: What is the percentage removal of BOD
Q20: Which of the following is a strict