TY - JOUR N2 - For majority of running waters point pollution sources are the main sources of pollution. Knowing the water self-purification capacity one can modify the quality of waters through proper management of the discharged pollutants. This study focuses on identifying such solutions for pollutant discharge into the KÅ‚odnica and Bytomka rivers, which would allow for achieving at least the Ill class of surface water quality. Simulation of selected wastewater management scenarios was carried out. The best solutions for the water environment were identified. Only environmental effects which resulted in improvement of the water quality were analyzed. The economical aspect of actions, the undertaking ofwhich is indispensable for achieving the assumed goal, was not taken into account. The selection of the best solutions considering the cost effectiveness cannot be made until a feasibility study for particular undertakings has been completed. Sal i nity and biodegradable pollutants determined by BOD coefficient were taken into consideration. The simulation was carried out using an integrated simulation model IRM (Integrated River Model). In order to protect the river from excessive salinity the optimum solution for the Bytomka River would be desalination, whereas for the KÅ‚odnica River- directing salty mining waters outside its catchment. For protection from biodegradable pollutants the only solution would be tightening the effectiveness criteria for municipal wastewater treatment. Meeting the minimum standards for wastewater treatment, currently obligatory in municipal wastewater treatment plants, will not ensure the assumed water purity level in these rivers. L1 - http://czasopisma.pan.pl/Content/123221/PDF-MASTER/7_AE_2008_34_SPECIAL_Bujok_Effects.pdf L2 - http://czasopisma.pan.pl/Content/123221 PY - 2008 IS - Special Issue EP - 68 KW - Self-purification capacity KW - dilutions KW - catchment KW - assimilative capacity KW - optimization A1 - Bujok, Rudolf PB - Polish Academy of Sciences VL - vol. 34 DA - 27.05.2022 T1 - Effects of Selected Wastewater Management Scenarios on River Water Quality SP - 55 UR - http://czasopisma.pan.pl/dlibra/publication/edition/123221 T2 - Archives of Environmental Protection ER -