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Microbiology of Waste Water

Microbiology of Waste Water
Activated sludge contains large number of

bacteria
all of these
yeasts and molds
protozoa

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

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

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Microbiology of Waste Water
Biogas production is

an oxygen dependent process
None of these
a temperature-dependent process
a temperature independent process

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Microbiology of Waste Water
Water testing relies on the detection of certain indicator organisms known as

coliforms
acid-fast bacteria
dinoflagellates
bacteroids

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

Iron bacteria
Slime forming bacteria
Sulfur bacteria
All of these

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Microbiology of Waste Water
Which of the following is generally not referred to the sewerage system?

Storm sewers
Solid sewers
Combined sewers
Sanitary sewers

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