Dependence of aeration efficiency in projected water spray on hydrodynamic profile in a water treatment tank

Author

Isa, Haydar Muhammad

Source

ZANCO Journal of Pure and Applied Sciences

Publisher

Salahaddin University-Erbil Department of Scientific Publications

Publication Date

2016-06-30

Country of Publication

Iraq

No. of Pages

8

Main Subjects

Natural & Life Sciences (Multidisciplinary)

English Abstract

In this study, measurements were conducted for the aeration efficiency and the oxygen transfer rate from the atmospheric air to water spray droplets in a water treatment tank to interpret the spray aerator characteristics.

The applied measurement technique depended on the hydrodynamic flow profile inside the tank.

The droplets were generated by the agitation due to the turbine rotation.

The performed calculations were depending on a hydrodynamic profile database that was obtained by applying Particle Image Velocimetry (PIV).

PIV apparatus has been used for the governed water flow by the tank internal configurations and geometry for a given turbine rotation speed.

It was found that the oxygen mass transfer is controlled by flow pattern inside the tank.

The generated water spray depends on the water flow redirected to the intake zone of the turbine.

The calculated oxygen mass transfer and aeration efficiency that obtained by using PIV in the water droplets have a direct dependence on the way that the water flow pattern acts inside the tank.

Data Type

Conference Papers

Record ID

BIM-786583

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