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Microbiology of Waste Water

Microbiology of Waste Water
Activated sludge contains large number of

yeasts and molds
protozoa
all of these
bacteria

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

Contact aerators
Trickling filters
All of these
Oxidation ponds

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Microbiology of Waste Water
Composting is one of the oldest forms of disposal of waste. It is the natural process of decomposition of organic waste that yields manure or compost. One of the following is added to the compost to get better results?

Worms
Ants
Bugs
Snakes

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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

zooglocal film
none of these
zoological film
geological film

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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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