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Microbiology of Waste Water

Microbiology of Waste Water
Activated sludge contains large number of

yeasts and molds
all of these
bacteria
protozoa

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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 biofilm
coagulation
a biodisc
the membrane filter technique

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

zoological film
geological film
zooglocal film
none of these

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

biolistics
bioremediation
bioinformatics
biotechnology

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Microbiology of Waste Water
Iron bacteria can produce

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

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

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