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Microbiology of Waste Water

Microbiology of Waste Water
The filtering medium of trickling filters is coated with microbial flora, known as

zooglocal film
geological film
zoological film
none of these

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

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

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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
Treatment of municipal water supplies is based upon

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

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Microbiology of Waste Water
Activated sludge contains large number of

protozoa
all of these
yeasts and molds
bacteria

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Microbiology of Waste Water
The acetate-utilizing methanogens are responsible for

20% of methane produced in a biogas reactor
85% of methane produced in a biogas reactor
70% of methane produced in a biogas reactor
50% of methane produced in a biogas reactor

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