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Which of the following pump is used for the removal of grit?

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+1 vote
in Environmental Engineering by (81.4k points)
Which of the following pump is used for the removal of grit?

(a) Centrifugal pump

(b) Pneumatic ejector

(c) Rotary screw pump

(d) Air lift pump

This question was posed to me during an online exam.

My question is from Inverted Siphon, Storm Regulator and Sewage Pumping topic in chapter Construction of Sewers, Sewer Appurtenances and Sewage Pumping of Environmental Engineering

1 Answer

+2 votes
by (693k points)
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Best answer
The correct choice is (c) Rotary screw pump

For explanation I would say: At Rotary screw pump, the motor rotates on a shaft to lift the solid waste material to a higher level and they are used in grit chambers for removing grit.

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