Effects of load reductions on the water quality of a large shallow lake

The process of eutrophication has threatened the viability for recreation of the largest lake in Middle Europe, Lake Balaton. For studying and simulating the system a deterministic model (a system of differential equations) has been constructed. The four basins of the lake are described by the same...

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Bibliographic Details
Published in:Ecological modelling 1987, Vol.39 (1), p.85-99
Main Authors: Kutas, Tibor, Herodek, Sándor
Format: Article
Language:English
Subjects:
eutrophication
Freshwater
Hungary, Balaton Lake
mathematical models
nutrient loading
nutrients
nutrients (mineral)
water quality
water quality control
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Summary:The process of eutrophication has threatened the viability for recreation of the largest lake in Middle Europe, Lake Balaton. For studying and simulating the system a deterministic model (a system of differential equations) has been constructed. The four basins of the lake are described by the same model and the models of basins are concatenated by hydrological throughflow. The one-basin model with its ten state variables describes the main mass transport processes in the pelagic zone of the lake and in the sediment, as the lake is shallow. The model can simulate seasonal changes and it is able to forecast the effect of some measures on water quality in the short term. The simulation runs show that the measures can be effective when the phosphorus-removing water-dam systems involved in tertiary treatment of sewage water work at a high rate.
ISSN:0304-3800
1872-7026
DOI:10.1016/0304-3800(87)90015-9