Evaluation of the Effectiveness of the SED-BIO System in Reducing the Inflow of Selected Physical, Chemical and Biological Pollutants to a Lake
Jerzy M. Kupiec,
Agnieszka Bednarek,
Sebastian Szklarek,
Joanna Mankiewicz-Boczek,
Liliana Serwecińska,
Jolanta Dąbrowska
Affiliations
Jerzy M. Kupiec
Department of Ecology and Environmental Protection, Faculty of Environmental Engineering and Mechanical Engineering, Poznań University of Life Sciences, 60-649 Poznań, Poland
Agnieszka Bednarek
UNESCO Chair on Ecohydrology and Applied Ecology, Faculty of Biology and Environmental Protection, University of Lodz, 90-237 Łódź, Poland
Sebastian Szklarek
European Regional Centre for Ecohydrology of the Polish Academy of Sciences, 90-364 Łódź, Poland
Joanna Mankiewicz-Boczek
European Regional Centre for Ecohydrology of the Polish Academy of Sciences, 90-364 Łódź, Poland
Liliana Serwecińska
European Regional Centre for Ecohydrology of the Polish Academy of Sciences, 90-364 Łódź, Poland
Jolanta Dąbrowska
Department of Civil Engineering, Faculty of Environmental Engineering and Geodesy, Wrocław University of Environmental and Life Sciences, 50-363 Wrocław, Poland
The aim of this study was to assess the efficiency of the innovative SED-BIO system in limiting the inflow of pollutants to Jelonek Lake. The analyses were conducted in the Gniezno Lake District in Greater Poland (the western part of Poland). Physical and chemical analyses were conducted in the years 2016–2019. The results demonstrate that the system is highly effective in the reduction of such nutrients as nitrogen (NO3−—63%; NH4+—14.9%) and phosphorus (PO43−—19.3%). Although the presence of cyanobacteria was confirmed practically throughout the whole monitoring period of the system (2016), the specimens found in most samples were not toxigenic genotypes with a potential to produce microcystins. Microcystins (3 µg·L−1) were detected only once, immediately after the SED-BIO system had been installed in the river and pond, which demonstrates that this natural toxin was eliminated from the additional pool of contaminants that might be transported to Jelonek Lake.
