Geo-electrical investigation of Leachate Impact on Groundwater: A Case Study of Ile- Epo Dumpsite, Lagos, Nigeria

The results revealed the aquifer is characterized by low resistivity response generally below 4.5 ohm-m depicting possible contamination of the underlying aquifer from Oke-Odo landfill

L Adeoti; S Oladele; FO Ogunlana

2011

Scholarcy highlights

  • All through the recent past, unlined disposal sites have been filled with household refuse and different kinds of potentially dangerous industrial waste
  • This poses a huge risk for the environment, and is the main source for groundwater contamination
  • The management of solid waste landfills has been a major problem of Lagos and urban centres in Nigeria and other developing countries worldwide
  • This study presents a case study, where Constant Spacing Traversing have been carried out for the detection and delineation of possible leachate infiltration into the aquifer matrix and to probe the geological setting of the study area from 2-D resistivity data, with a view to mapping out possible areas for groundwater development that will not be prone to pollution hazard
  • Geologic Units within the Dahomey Basin: Stratigraphy of the eastern Dahomey basin has been discussed by various workers and several classification schemes have been proposed
  • The zone is interpreted as clayey material with low hydraulic conductivities, and is responsible for protecting the underlying aquiferous layer from leachates invasion from the surface

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