Multiple Choice
All of the following are used in secondary sewage treatment EXCEPT
A) trickling filters.
B) sludge granules or floc formation.
C) aeration.
D) anaerobic digestion.
E) activated sludge.
Correct Answer:

Verified
Correct Answer:
Verified
Q55: An oil spill occurred in the waters
Q56: All of the following organisms are involved
Q57: Adding untreated sewage to a freshwater lake
Q58: Which of the following organisms is using
Q59: Which of the following is required for
Q60: The BOD is a measurement of the
Q61: Figure 27.1<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6915/.jpg" alt="Figure 27.1
Q62: Sedimentation of sludge occurs in<br>A)anaerobic sludge digestion.<br>B)primary
Q63: Which wastewater treatment process produces BOD-containing effluent
Q65: Figure 27.1<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6915/.jpg" alt="Figure 27.1