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Microbiology of Waste Water

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

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

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

none of these
geological film
zoological film
zooglocal film

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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
Ants
Worms
Snakes

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

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

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Microbiology of Waste Water
The death of a river by environmental pollutants ultimately results from

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

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Microbiology of Waste Water
What is an anaerobic digester?

New diet drink
Method to convert agricultural waste into a biogas
All of these
Microbe that eats hazardous waste

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