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Microbiology of Waste Water

Microbiology of Waste Water
Activated sludge contains large number of

yeasts and molds
protozoa
all of these
bacteria

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Microbiology of Waste Water
The use of microbes to break down synthetic waste products such as polychlorinated biphenyls is called

biolistics
bioremediation
bioinformatics
biotechnology

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

Storm sewers
Sanitary sewers
Solid sewers
Combined sewers

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

Slime forming bacteria
Iron bacteria
All of these
Sulfur bacteria

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Microbiology of Waste Water
Iron bacteria can produce

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

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Microbiology of Waste Water
Biogas production is

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

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