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With how much pressure the air is filled in the aeration tank?

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+2 votes
in Environmental Engineering by (81.4k points)
With how much pressure the air is filled in the aeration tank?

(a) 70-90kN/m^2

(b) 34-56kN/m^2

(c) 10-20kN/m^2

(d) 35-70kN/m^2

I have been asked this question by my college professor while I was bunking the class.

My question comes from Diffused Air System in chapter Sewage Filtration and Activated Sludge Process of Environmental Engineering

1 Answer

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Best answer
The correct choice is (d) 35-70kN/m^2

Explanation: The air is compressed in the diffused air aerator with the pressure of 35-70kN/m^2  resulting in the formation of the bubbles, improving the efficiency of aeration.

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