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Microbiology of Waste Water

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

zoological film
zooglocal film
geological film
none of these

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

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Microbiology of Waste Water
Water testing relies on the detection of certain indicator organisms known as

dinoflagellates
bacteroids
acid-fast bacteria
coliforms

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Microbiology of Waste Water
Which of the following is generally not referred to the sewerage system?

Sanitary sewers
Combined sewers
Storm sewers
Solid sewers

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Microbiology of Waste Water
What is an anaerobic digester?

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

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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?

Ants
Snakes
Worms
Bugs

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