Closing down Pääsküla landfill. Post-closedown environmental monitoring and maintenance of the landfill

Pääsküla landfill is the largest municipal waste landfill in Estonia which was established 1972 and closed 2003. The landfill was closed down during 2003-2006 within ISPA (The Instrument for Structural Policies for Pre-accession) project. At the moment of closing down its volume was 4,5 million cubic metres, relative height 29 metres and its area nearly 30 hectares. The total cost of the project was 11 225 009 EUR (175 633 228 EEK) including V.A.T 18 per cent. Objectives of the projects were to minimize the environmental impacts in a long perspective against main hazards as contamination of groundwater and surface water, landfill gas leakage, health hazards to neighbourhood dwellings and nuisance like smell, fly trash, gulls and other birds and rodents.

The scope of works included installation of vinyl pile wall around the landfill, construction of leachate water collection system and irrigation system, construction of landfill gas collection system, capping the landfill body and installation of landfill monitoring system. The additional works of the project (2007-2008) included construction of public waste station for recyclables and clean-up the sanitary zone of the landfill. The project was finalised by the end of 2008. Environmental monitoring of the closed down landfill has been carried out since 2005 by the Central Lab of the Estonian Environmental Research Centre (EERC) and the reports show remarkable improvements of surface water in the river. In addition, the landfill gas is collected and used as fuel to two combined heat and power (CHP) systems, selling heat and power to local energy company.

Copyright: © NMC Ltd.
Quelle: The 4th annual conference „Enviro-management 2010“ (Oktober 2010)
Seiten: 10
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Autor: MSc. Jana Kivimägi

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