Field Testing of a Winter Lake Aeration System

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Field Testing of a Winter Lake Aeration System

Published Date

1991-06

Publisher

St. Anthony Falls Hydraulic Laboratory

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Report

Abstract

Conventional aeration of winterkill lakes results in lDlxmg. of the water column and open water in the ice cover. A non-mixing winter lake aeration system has been designed and field tested that can maintain water temperature stratification in the lake and not create open water. The performance of a cascade aerator was evaluated for which the design discharge and dissolved oxygen input rate were 85 lis and 70 kg/d, respectively, Unusually high levels of dissolved oxygen due to photosynthetic productivity under the ice-cover were also observed and are reported.

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LEGISLATIVE COMMISSION ON MINNESOTA RESOURCES

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Ellis, Christopher R.; Stefan, Heinz G.. (1991). Field Testing of a Winter Lake Aeration System. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/108543.

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