Synoptic Survey of Hypolimnetic Aeration

by Arlo W. Fast, Limnologist; Limnological Associates, Ojai, Calif.,
Marc W. Lorenzen, (M.ASCE), Environmental Systems Engr.; Tetra Tech., Inc., Lafayette, Calif.,

Serial Information: Journal of the Environmental Engineering Division, 1976, Vol. 102, Issue 6, Pg. 1161-1173

Document Type: Journal Paper


Hypolimnetic aeration/oxygenation is a means whereby thermal stratification can be maintained in a lake or reservoir and the hypolimnetic waters are oxygenated. Seventeen different hypolimnetic aerator/oxygenator designs are presented and analyzed, categorized as mechanical agitation systems, pure oxygen injection systems, and air injection systems. Air injection systems can be further subdivided into full air lift designs, partial air lift designs and downflow air injection. Of all the systems, the full air lift is probably the most efficient in terms of energy consumed to dissolve a given amount of oxygen. None are in widespread usage.

Subject Headings: Oxygen | Geomatic surveys | Aeration | Thermal properties | Water stratification | Lakes | Reservoirs | Mechanical systems

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