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Bacteria in Sewage

What is added...

Question

What is added to the water treatment tank to settle the colloidal particles?

A

Alum

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B

Alum and lime

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C

Lime

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D

Potash

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Similar questions

Q. What is added to the water treatment tank to settle the colloidal particles?

Which of the following is added to muddy water to settle the colloidal particles?

Q. In the treatment of water, solid impurities are allowed to settle to the bottom. This particular stage in the entire purification is called________.

Q. Read the following statements & about waste water treatment how many of them are correct

(i) In Primary treatment First, floating debris of waste is removed by sequence filters
(ii) The Soil and small pebbles are removed by sedimentation in settling tanks
(iii)The sediment is called primary sludge and supernatant is effluent.
(iv) The Sludge is taken for Secondary treatment.
(v) Lower the B.O.D., higher Is water pollution.
(vi)When DDT enters the food chain then they reach water and are easily degradable.
(vii)Discharge of sewage water into river water will decrease its B.O.D.
(viii) Chlorine is added to disinfect drinking water

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