Which one of the following processes in sewage treatment requires bacterial metabolism?
A) sedimentation
B) primary treatment
C) removal of BOD
D) chlorination
E) None of the answers is correct.
Correct Answer:
Verified
Q5: Filtration to remove protozoa occurs in
A) secondary
Q6: For the biogeochemical cycles of the following
Q8: 6H2S + 6CO2 light 6S0 + glucose
Q11: All of the following organisms are involved
Q12: Figure 27.1 Q13: Untreated sewage is released into a river. Q14: Which of the following terms describes NO3- Q15: All of the following are habitats for Q17: Adding untreated sewage to a freshwater lake Q32: Figure 27.2
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