In Braniewo, Poland, water from the local indoor swimming pool is treated in a recirculation system so that, after several stages of purification, it can be used for municipal purposes, such as cleaning the sewage system. It is the swimming pool water used for the regular rinsing of the pool’s filter system. Up to 50% of the wastewater generated in the process can be reused. The closed-loop treatment of this water includes processes such as coagulation (flocculation), sedimentation as well as natural dechlorination and odour removal.
The water will ultimately meet the legal requirements of quality class A or B of EU Regulation 2020/741. This recycling process allows the reuse of 15% of the tap water, which would otherwise be discharged into the sewage system during the daily operation of the swimming pool.
- Location: Braniewo (Poland)
- Water source: Wastewater from cleaning the filter system of a public indoor swimming pool
- Type of treatment: Natural dechlorination, coagulation, flocculation, sedimentation
- Target water quality: Quality class A/B according to Directive (EU) 2020/741
- Utilisation: Cleaning of the sewage system, other municipal purposes
- Return to natural cycle: Discharge into sewage system
- Responsible: Braniewo Municipality / Gdańsk University of Technology
- Open for visitors: Autumn 2025