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Microbiology of Waste Water

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

Iron bacteria
All of these
Sulfur bacteria
Slime forming bacteria

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Microbiology of Waste Water
Which is not a form of biomass energy?

Photovoltaic production of hydrogen
Composting to produce methane
Ethanol and methanol production for auto fuel
Incineration of solid waste

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Microbiology of Waste Water
Iron bacteria can produce

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

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Microbiology of Waste Water
A dense bacterial population caught in a tangled web of fibers sticking to a surface describes

a biodisc
coagulation
the membrane filter technique
a biofilm

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Microbiology of Waste Water
Biogas production is

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

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Microbiology of Waste Water
The magnitude of BOD of wastewater is related to

amount of inorganic material
All of these
amount of organic material
bacterial count

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