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Microbiology of Waste Water

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

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

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

biotechnology
bioremediation
biolistics
bioinformatics

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

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

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

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Microbiology of Waste Water
Biogas production is

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

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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
a biofilm
the membrane filter technique

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