1. Faculty of Process and Environmental Engineering, Lodz University of Technology, ul. Wólczańska 175, 90-924 Łódź , Poland
2. Faculty of Architecture, Civil and Environmental Engineering, Lodz University of Technology, al. Politechniki 6, 90-924 Łódź , Poland
3. Combined Wastewater Treatment Plant Lodz Co. Ltd., ul. Sanitariuszek 66, 91-867 Łódź , Poland