Modernisation of the municipal wastewater treatment plant in Dziadowa Kłoda

1. Demolition works.

2. Earthworks and drainage.

3. Removal of collision.

4. Construction works:

• construction of a combined sewage collection station with a traveling screen, from which the sewage will flow into a reinforced concrete retention tank for combined sewage with an active capacity of 100 m³;
• construction of a sludge reception station for sludge from domestic sewage treatment plants including a traveling screen;
• construction of a mechanical wastewater pretreatment facility;
• construction of a reinforced concrete/polymer concrete raw sewage pumping station with an active volume of at least 30 m³ and equipped with an agitator and 3 pumps with a capacity of approx. 35 m³/h each and approx. 65 m³/h for 2 pumps in operation;
• construction of a reinforced concrete biological wastewater treatment reactor comprising an aerobic selector chamber, a denitrification chamber and a nitrification chamber with a total volume of approx. 860 m³;
• construction of one secondary settling tank or two settling tanks with a separation chamber for clarification of waste water operating at a hydraulic load of Q_maxh = 62 m³/h O_hmax = 1m/h, i.e. with a surface area of no less than 62.4 m² , together with recirculated and surplus sludge pumps;
• construction of a pumping station for recirculated, surplus and thickened sludge;
• construction of a sludge thickener to thicken sludge before feeding it into the stabilisation chamber, together with pumps for thickened sludge;
• construction of an aerobic sludge stabilisation chamber with a total capacity of approx. 300 m³;
• construction of a measurement chamber for the quantity of treated wastewater discharged to the environment;

• construction of a blower station;
• construction of a dewatering station for stabilised sludge with a lime silo for its hygienization;
• redevelopment of the existing sludge pit into a dewatered sludge storage facility,
• construction of a PAX coagulant storage and dosing station;
• renovation of the treated effluent outlet;
• conversion and extension of the existing social and technical building;
• supply and installation of a generator.

5. Technological works:

• sanitary, process, electrical and instrumentation installations of the wastewater treatment plant;
• construction of technological facilities for wastewater treatment;
• implementation of the power and control installation.

6. Other works:

• tidying up of the construction site including restoration of disturbed objects to their original state;
• construction of roads, pavements and lots including 4 parking spaces;
• construction of external lighting for the sewage treatment plant;
• fence replacement;
• inter-facility networks.

7. Commissioning of the wastewater treatment plant.