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Paulina Śliz, Karolina Migdał
Abstract
The aim of this study was to analyze the efficiency of wastewater treatment processes in fifteen wastewater treatment plants located in the region of Lake Czorsztyn, which functions as both a direct and indirect receiver of treated effluents from these facilities. The analyzed wastewater treatment plants are situated in the following localities: Czarny Dunajec, Czorsztyn, Dębno, Frydman, Kluszkowce, Krempachy, Krościenko, Łopuszna, Maniowy, Niedzica, Sromowce Niżne, Sromowce Wyżne, Szczawnica, Trute, and Trybsz. The assessment of treatment efficiency in these facilities was performed based on the calculation of the average reduction degree (η) of selected pollution indicators (BOD5, CODCr, total suspended solids, total nitrogen, and total phosphorus), as well as on the analysis of the number of exceedances of their permissible values in treated wastewater. The evaluation was based on analytical results from two years (2023–2024). High wastewater treatment efficiency was found for BOD5, CODCr, and total suspended solids (the reduction range for the analyzed contaminants was: ηBOD5 = 91.2%–99.1%, ηCODCr = 80.9%–96.7%, ηTSS = 88.5%–98.3%). For total nitrogen, the average reduction efficiency ranged from 48.2% to 96.6%, and for total phosphorus from 55.6% to 95.7%. Exceedances of permissible total nitrogen concentrations were observed in 40% of the analyzed samples from the Niedzica wastewater treatment plant, as well as single exceedances of total phosphorus limit valuess in Czarny Dunajec, Czorsztyn, and Niedzica.
Jan Koroński
Abstract
The present paper contains biography of Zbigniew Kowalski (1924–1992). Information about his major scientific achievements in the field of ordinary and partial differential equations is given. A complete bibliography of Zbigniew Kowalski is also provided.
Adolf Sotoca, Mateusz Gyurkovich
Abstract
This paper describes the WECARE project and its methodology, as a framework for urban regeneration through the urban commons. The methodology combines research (i.e. urban and socio-environmental analysis, literature review, on-site visits and questionnaire surveys) with education on different levels and artistic actions & performances. It proposes a paradigm shift from “ecosystem services” to “ecosystem commons”, emphasising community stewardship. Through Participatory Action Research (PAR) and Service-Learning, the study investigates postwar housing estates in Barcelona, Krakow, and Bucharest. The project identifies “latent commons” by mapping quantitative geodata alongside situated qualitative knowledge. On a second stage, it implements collective artistic interventions that may lay the basis for “soft infrastructures” of solidarity, fostering social cohesion and environmental agency. The results are a replicable methodology for community empowerment, proving that sustainable urban regeneration is a relational and cultural process. The findings can be useful for research & educational actions conducted in multicultural districts (which involves both: students and local communities), especially the postwar prefabricated housing estates in various European countries. As well as during the participatory planning processes organized within such areas.
file:///C:/DANE/Pobierane/WECARE_Environmental_Commons_in_Action,_Research_and_Education.pdf
