Tag: wastewater treatment - need and methods

Questions Related to wastewater treatment - need and methods

The process of mixing chlorine in the water to kill the germs is  called

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  1. filtration

  2. chlorination

  3. purification

  4. distillation

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Correct Option: B

Dried sludge is used as

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. Manure

  2. Source for biogas

  3. fertilizers

  4. Both A and B

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Correct Option: A

Excess nitrates in water cause problems for the Chesapeake Bay because

zoology diseases and immunity basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this?

  1. They cause excessive cellular respiration in plants and animals, resulting in a large amount of carbon dioxide production.

  2. They cause excessive bacteria growth resulting in too much oxygen which hurts photosynthesis in plants.

  3. They cause excessive algae growth, blocking sunlight and reducing oxygen when the algae dies.

  4. Nitrates are poisonous to fish, crabs, and oysters.

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Correct Option: C

Mark the correct statement about nitrification


(a) Nitrification is important is agricultural system.
(b) Nitrification increase nitrogen leaching.
(c) Plays important role in removal of nitrogen from municipal waste water.

zoology diseases and immunity basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this?

  1. a, b, c

  2. a, b

  3. a, c

  4. b, c

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Correct Option: A
Explanation:

Nitrification is a biological oxidation process includes convertion of Ammonia to Nitrate increases nitrogen leaching because nitrate is more water soluble than Ammonia.