✦ LIBER ✦

Power characteristics of surface aerators

✍ Scribed by Achanta Ramakrishna Rao; Ajey Kumar Patel; Bimlesh Kumar

Publisher: Wiley (John Wiley & Sons)
Year: 2010
Tongue: English
Weight: 397 KB
Volume: 85
Category: Article
ISSN: 0268-2575
DOI: 10.1002/jctb.2364

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

BACKGROUND: The hydrodynamic conditions of a surface aeration system can be characterized by interpreting the power consumption of the impeller. Power consumed by aeration tanks depends on the geometries of the impeller and tank, which is generally denoted by the power number.

RESULTS: The various geometric and dynamic parameters affecting the power number have been studied experimentally. Three flat‐bottomed cylindrical tanks of 1, 0.518 and 0.168 m^2^ cross sectional area, fitted with six flat bladed impellers were used as baffled and unbaffled circular tanks.

CONCLUSIONS: Scale‐up criteria have been developed for baffled surface aeration tanks. General correlations have been developed for both baffled and unbaffled aeration systems which are useful in the design of surface aeration tanks. Copyright © 2010 Society of Chemical Industry

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