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Microbiology of Waste Water

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

the membrane filter technique
a biofilm
coagulation
a biodisc

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Microbiology of Waste Water
Biogas production is

a temperature-dependent process
a temperature independent 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

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

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

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

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Microbiology of Waste Water
Oxidation ponds are shallow ponds, generally designed at the depth of

1 to 3 feet
5 to 8 feet
4 to 6 feet
2 to 40 feet

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Microbiology of Waste Water
Some cyanobacteria produce potent neurotoxins that, if ingested, will kill humans. These cyanobacteria are most likely to contaminate

water rich in organic carbon wastes but poor in phosphate
None of these
water rich in phosphate wastes but poor in organic carbon
water that are anoxic

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