Microbiology of Waste Water – Section 1

6. Advanced treatment is generally used to treat waste water to

A. remove coarse solids
B. remove settleable solids
C. reduce BOD
D. remove additional objectionable substances

Correct Answer: D. remove additional objectionable substances

7. Treatment of municipal water supplies is based upon

A. coagulation, filtration, chlorination
B. chlorination, filtration, coagulation
C. filtration, coagulation, chlorination
D. coagulation, chlorination, filtration

Correct Answer: A. coagulation, filtration, chlorination

8. What is an anaerobic digester?

A. New diet drink
B. Microbe that eats hazardous waste
C. Method to convert agricultural waste into a biogas
D. All of the above

Correct Answer: C. Method to convert agricultural waste into a biogas

9. The use of microbes to break down synthetic waste products such as polychlorinated biphenyls is called

A. bioinformatics
B. biolistics
C. biotechnology
D. bioremediation

Correct Answer: D. bioremediation

10. Activated sludge contains a large number of

A. bacteria
B. yeasts and molds
C. protozoa
D. all of these

Correct Answer: D. all of these

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