The aim of this work was the joint application and integration of different electric geophysical methods for studying the landfill of Savoia di Lucania (Southern Italy). Because of its engineering features and small dimensions (70m x 30m x 6m) This landfill represents an optimal test site to assess a geophysical survey protocol for municipal solid waste landfills monitoring. The landfill of Savoia di Lucania was built with reinforced concrete material and coated with a High Density Polyethylene (HDPE) liner. Three Electrical Resistivity Tomography (ERT), two Self Potential (SP) map surveys and one Induced Polarization (IP) section have been performed both in the surrounding area and inside the waste landfill. The geophysical investigations defined the buried boundaries of the landfill basin and localized the leachate accumulation zones inside the dumpsite well. The comparison of our results with other engineering and geological investigations could be the key to evaluating the integrity of the HDPE liner. Finally, the integration of the ERT, IP and SP methods seems to be a promising tool for studying and for designing new monitoring systems able to perform a time-lapse analysis of waste landfill geometry and integrity.
Joint ERT, SP and IP Investigations at Waste Dump of Savoia di Lucania (Southern Italy)
Bavusi M;Rizzo E;Lapenna V
2008
Abstract
The aim of this work was the joint application and integration of different electric geophysical methods for studying the landfill of Savoia di Lucania (Southern Italy). Because of its engineering features and small dimensions (70m x 30m x 6m) This landfill represents an optimal test site to assess a geophysical survey protocol for municipal solid waste landfills monitoring. The landfill of Savoia di Lucania was built with reinforced concrete material and coated with a High Density Polyethylene (HDPE) liner. Three Electrical Resistivity Tomography (ERT), two Self Potential (SP) map surveys and one Induced Polarization (IP) section have been performed both in the surrounding area and inside the waste landfill. The geophysical investigations defined the buried boundaries of the landfill basin and localized the leachate accumulation zones inside the dumpsite well. The comparison of our results with other engineering and geological investigations could be the key to evaluating the integrity of the HDPE liner. Finally, the integration of the ERT, IP and SP methods seems to be a promising tool for studying and for designing new monitoring systems able to perform a time-lapse analysis of waste landfill geometry and integrity.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
