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Microbiology of Waste Water

Microbiology of Waste Water
The magnitude of BOD of wastewater is related to

All of these
bacterial count
amount of inorganic material
amount of organic material

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

Contact aerators
All of these
Trickling filters
Oxidation ponds

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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
The death of a river by environmental pollutants ultimately results from

the depletion of oxygen
the buildup of sediment on the river bottom
the overabundance of toxic proteins
the overpopulation of algae

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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?

Bugs
Worms
Snakes
Ants

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Microbiology of Waste Water
Biogas production is

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

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