Hypolimnetic Aeration in Three Swiss Lakes

by Roger P. Favre, Locher & Cie Inc, Zuerich, Switzerland,

Document Type: Proceeding Paper

Part of: Air-Water Mass Transfer


Eutrophication is quite common in low altitude Swiss lakes. Government agencies have set up phosphorus and oxygen limits for streams and lakes. Aeration equipment has been in use for up to 9 years in three Swiss lakes iwth the goal of maintaining a 4 mg/l oxygen level and preventing phosphorus release. In the course of the project, nitrogen transfer and sediment surface modification have been studied.

Subject Headings: Aeration | Lakes | Phosphorus | Government | Rivers and streams | Equipment and machinery | Mass transfer | Eutrophication | Switzerland | Europe

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