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Pilot Performance of Deep U-Tubes
Journal article

Pilot Performance of Deep U-Tubes

R Speece, D Gallagher, C Krick and R Thomson
WATER SCI. & TECH, Vol.13(1), pp.395-407
01 Jan 1981

Abstract

Absorption Activated sludge process Aeration Engineering Instruments Sludge settling
U-Tube aeration has received considerable attention recently as part of a modification of the activated sludge process called "Deep Shaft" treatment. Presently there is only limited data on aeration characteristics of deep U-Tubes showing the effect of velocity, depth and gas/water injection ratios. This study determined the increase in dissolved oxygen, the oxygen absorption efficiency and the head loss across a 0.1 m diameter U-Tube.

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