Treatment of household sewage and swimming pool water.
- A compact, modular, underground facility developed as a multi-chamber tank made of reinforced concrete, partly covered by slabs made of plastic.
- External dimensions of the wastewater treatment plant: length: 32.55 m, width: 5.36 m, height: 3.50 m.
- The average daily flowthrough: 125.26 m3/d (household sewage being only a quarter of the amount).
- The side of the plant in relation to BOD5: 930 PE.
- Apart from typical sanitary sewage, the sewage mix contains large quantities of chlorides, sulphates and sodium, coming from geothermal water used in the swimming pools and the Termy Celejów SPA.
- The plant operates using the submerged biological system with gravity flow.
- Treatment is done using a preliminary settling tank, two parallel, two-stage bioreactors and two secondary settling tanks.
- Phosphorus removal is enhanced by a coagulant added to secondary settling tanks.
- Sludge accumulates in a storage tank – a digester.
- Considering the proximity of the recreational complex, the wastewater treatment plant has an active neutraliser that removes odorous substances from the air.
- The correct level of impurities removal: TSS: 95%, BOD5: 97%, COD: 94%. Treated wastewater outflow is measured by an electromagnetic flow meter.