1. Faculty of Engineering Sciences, State University of Applied Sciences in Nowy Sącz, Zamenhofa 1A, 33-300 Nowy Sącz, Poland
2. Department of Environmental Technologies, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
3. Department of Water and Wastewater Engineering, Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland
4. Department of Mechanics, Maritime University of Szczecin, Willowa 71, 70-500 Szczecin, Poland