Expansion and Modernisation of the 'Czajka' Wastewater Treatment Plant in Warsaw (with transmission system and sludge incineration plant)
The expansion and modernisation of the 'Czajka' wastewater treatment plant in Warsaw's Białołęka district was one of the largest municipal environmental investments in Poland, co-financed from European Union funds. The contract for the plant's expansion and modernisation was signed in January 2008, with the company Warbud as the main contractor; the expansion was completed in 2012. In practice, the project comprised three related investments: the construction of a large, modern treatment plant on the site of the old one, the construction of the Thermal Sewage Sludge Utilisation Station (a sludge incineration plant using fluidised-bed combustion technology), and a sewage transmission system from left-bank Warsaw, including a 1.3 km tunnel bored approximately 10 m beneath the bed of the Vistula River, 4.5 m in diameter, carrying two collectors (a main and a backup) each 1.60 m in diameter. The cost of expanding the treatment plant, building the sludge incineration plant and laying the pipe system was approximately PLN 3.7 billion (as of October 2012, a combined figure of PLN 3.1 billion was reported), of which more than PLN 1.4 billion came from EU funds. Since June 2012, 'Czajka' has treated sewage from both banks of the Vistula. The expanded plant covers 52.7 ha and can take in approximately 435,000 m³ of sewage per day, making it the largest wastewater treatment plant in Poland; it is part of the Warsaw Waterworks and Sewerage Company (MPWiK). On 27–28 August 2019, and again on 29 August 2020, collector failures occurred in the tunnel under the Vistula, forcing a temporary discharge of untreated sewage into the river. These, however, are operational incidents that occurred after the investment's completion.
How it went
Assessment: settled, as of 2012. This is our reading, not a verdict, and we show it only where a quote from a source listed below stands behind it. Of the four, 2 carry no assessment yet. How to read this section
- Current
- eksploatowana; od czerwca 2012 r. oczyszcza ścieki z obu brzegów Wisły
- Capacity or target
- ok. 435 tys. m³/dobę
Timeline
Change history
- 2012status: completedRozbudowa i modernizacja zakładu zakończona w 2012 r.; od czerwca 2012 r. oczyszcza ścieki z obu brzegów Wisły.
- 2012stage: operational
Significance
After the expansion was completed in 2012, 'Czajka' became the largest wastewater treatment plant in Poland (capacity of approximately 435,000 m³/day). Together with the transmission system and the tunnel under the Vistula, the investment made it possible to direct sewage from left-bank, central and northern Warsaw, which had previously discharged into the river untreated, to treatment, improving the sanitary condition of the Vistula and fulfilling the obligations of the Urban Waste Water Treatment Directive 91/271/EEC. The construction of the Thermal Sewage Sludge Utilisation Station enabled the thermal treatment of sludge generated during the treatment process. However, the failures of the transmission collectors in August 2019 and August 2020 revealed the vulnerability of the transmission system, leading to temporary discharges of untreated sewage into the Vistula.
Sources 5 · 4 independent · 3 archived
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- Wikipedia (pl)StatusConstruction startDeliveryInvestor
Status · DeliveryRozbudowa zakładu zakończyła się w 2012
Construction startW styczniu 2008 zawarta została umowa na jej rozbudowę i unowocześnienie[15]. Głównym wykonawcą została spółka Warbud
InvestorZakład jest częścią Miejskiego Przedsiębiorstwa Wodociągów i Kanalizacji w m.st. Warszawie.
- PortalSamorzadowy.pl29 Oct 2012StageFundingUtilisation
Stage · UtilisationCzajka" już od końca czerwca przyjmuje nieoczyszczane wcześniej ścieki z lewej części Warszawy
Fundingz czego ponad 1,4 mld pochodziło ze środków unijnych
- muratorplus.pl18 Mar 2013CostDelivery
CostRozbudowa oczyszczalni ścieków, budowa zakładu spalania odpadów oraz ułożenie kilkukilometrowego systemu rur dostarczających ścieki (w tym wydrążenie tunelu pod dnem Wisły) kosztowały około 3,7 mld zł
DeliveryZakończenie rozbudowy warszawskiej oczyszczalni ścieków Czajka zakończyło się w 2012 roku.
- MPWiK w m.st. Warszawie S.A.Funding
FundingRozbudowa Oczyszczalni Ścieków „Czajka” - część ściekowa i przygotowanie osadów do unieszkodliwiania została dofinansowana przez Narodowy Fundusz Ochrony Środowiska i Gospodarki Wodnej (www.nfosigw.gov.pl) Wojewódzki Fundusz Ochrony Środowiska i Gospodarki Wodnej w Warszawie
- Funding
FundingWkład własny: 629 918 500 zł