engleski

Efficiency in preventing landfill-related contamination using hydraulic barrier

Municipal and industrial waste generated in Zagreb, the capital of Croatia, is tipped at the Jakuševec Landfill. The landfill is sited on a gravel and sand aquifer which is a potable water source for the City of Zagreb. Remediation project included setting up of an emergency pumping system. The system consists of four wells, combined capacity 300 l/s, pumping contaminated water and a closed system conveying it to the wastewater treatment plant. The emergency pumping system has been in continuous operation since early 2002. Analysis of available groundwater quality data on an area downstream from the landfill for the period 2002- 2007 shows especially high concentrations of manganese, iron, lead and arsenic and do not show decreasing trend regardless of continuous operation of the emergency pumping system. It is concluded that the pumping system has not removed residual aquifer contamination under the landfill body during the five-year operation period.

landfill; groundwater; Zagreb; Croatia

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