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Eutrofizace povrchových vod
 Kunze, David
This bachelor thesis deals with eutrophication of surface waters. People dramatically increase trophic conditions of water ecosystems. Attention is focused on phosphorus as a crucial nutrient for excessive growth of phytoplankton, especially cyanobacteria. Wastewaters are the main source of phosphorus. For this reason, wastewater treatment plants must use the best available techniques to eliminate phosphorus. Phosphorus will be a scarce resource. Author describes the possibilities for recycling of phosphorus. Measures to reduce eutrophication, including completed projects, are also mentioned. Nitrogen sources and the possibility of its removal, are discussed too. Measured concentrations of the basic indicators in representative profiles of river basins show the development of eutrophication in the Czech Republic. Finally, values of these indicators are compared with the limits set by current legislation.
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