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Microbiology of Waste Water

Microbiology of Waste Water
Which of the following is not employed as an oxidation method?

Oxidation ponds
Trickling filters
All of these
Contact aerators

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Microbiology of Waste Water
Which of the following is responsible for the corrosion problem?

All of these
Slime forming bacteria
Sulfur bacteria
Iron bacteria

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Microbiology of Waste Water
The death of a river by environmental pollutants ultimately results from

the overpopulation of algae
the overabundance of toxic proteins
the depletion of oxygen
the buildup of sediment on the river bottom

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Microbiology of Waste Water
Treatment of municipal water supplies is based upon

coagulation, chlorination, filtration
coagulation, filtration, chlorination
chlorination, filtration, coagulation
filtration, coagulation, chlorination

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Microbiology of Waste Water
Iron bacteria can produce

extreme acidity
both (a) and (b)
undesirable odors and tastes
slime

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Microbiology of Waste Water
The concept of putting microbes to help clean up the environment is called

pasteurization
bioremediation
biolistics
fermentation

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