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Microbiology of Waste Water

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

All of these
Iron bacteria
Sulfur bacteria
Slime forming bacteria

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Microbiology of Waste Water
Advanced treatment is generally used to treat waste water to

remove coarse solids
remove additional objectionable substances
reduce BOD
remove settleable solids

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

Oxidation ponds
Trickling filters
Contact aerators
All of these

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

fermentation
bioremediation
biolistics
pasteurization

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Microbiology of Waste Water
Biogas production is

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

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Microbiology of Waste Water
The biogas production process takes place at the temperature

25-40°C
45-60°C
lesser than 25°C
all of these

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