Experiment on the Efficiency of an Aspirator-Blower Type Aerator

by Charles C. S. Song, St. Anthony Falls Hydraulic Lab, Minneapolis, United States,
Qun Wang, St. Anthony Falls Hydraulic Lab, Minneapolis, United States,
D. S. Arbisi, St. Anthony Falls Hydraulic Lab, Minneapolis, United States,



Document Type: Proceeding Paper

Part of: Air-Water Mass Transfer

Abstract: An aspirator-blower type aerator was designed and tested successfully for small lake application. The experiment showed that significant amount of air flow can be generated by the aspirator effect alone. For a given water flow rate, there is a maximum air flow rate beyond which flow becomes unstable. A unique relationship between the normalized dissolved oxygen concentration and the normalized time and between the oxygen transfer efficiency and the normalized time were found.

Subject Headings: Air flow | Oxygen transfer | Dissolved oxygen | Aeration | Flow rates | Water flow | Water treatment | Lakes

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