St Petersburg Northern Waste Water Treatment Plant Sludge Incinerator
In 2001 St Petersburg’s Water and Waste Water Company Vodokanal was advised that its practice of disposing de-watered sludge from the Northern Waste Water Treatment Plant (NWWTP) to landfill would have to be discontinued as of end 2003 as the landfill will have reached its maximum capacity and will be closed down. The nearest alternative appropriate disposal site is located in the Lodeynopolskiy District of Leningrad Oblast some 250-300 km away. The landfills themselves represent the environmentally hazardous facilities due to the harmful emissions which have extremely unpleasant odor and possible pollution of soil and ground water. It was expected that following the completion of additional collectors, the amount of sludge generated by the NWWTP will have doubled by 2010 and based on the success of the sludge incinerator contructed at the Central Waste Water Treatment Plant in 1999, Vodokanal maintained that the construction of further sludge incinerators at the NWWTP and the South West Waste Water Treatment Plant (SWWWTP) would be the most efficient and environmentally sustainable way of disposing sludge produced by these plants.
Construction of the sludge incinerator at NWWTP started in 2004 and the €90.4 million investment include loans from EBRD, NIB, EIB and BNP Paribas and a NDEP grant of €6.35 million. OTV SA from France, a subsidiary of Veolia Water Systems, was selected as the turn-key contractor in charge of the design and construction. The first incineration line of the Northern Sludge Incinerator plant was inaugurated on 26 October 2007 by the Governor of St Petersburg, Ms Matvienko and the Director General of St Petersburg Vodokanal, Mr Karmazinov. Two flow lines have since been completed and are now operational.
The Incineration plant at NWWTP will ensure a long-term sustainable solution to the problem of sludge treatment by reducing the discharge of untreated or inadequately treated wastewater into the Gulf of Finland.
Flue gas emission will meet the EU Directive (2000/76EC) on the incineration of waste.
The closing down and rehabilitation of sludge landfills will further reduce SO2 and CO2 emissions.Together, the incinerators at NWWTP and SWWWTP have a combined capacity of handling over 440 tones of dewatered sludge per day and can reduce the sludge volume tenfold. Significant energy savings are achieved as well as energy production through the incineration process. Vodokanal St. Petersburg is developing methods to use the ash left over from incineration as material for road construction.
At a glance
- Water and wastewater treatment
- City of St Petersburg
- Grant agreement signed:
- Project status:
- Implementing IFI:
- Participating Institutions:
- BNP Paribas
- One Exchange Square
- Email: email@example.com