Electrical Resistivity And Induced Polarization Imaging For Refuse Dump Site

  • Akwasi Acheampong Aning Geophysics Section, Department of Physics, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
  • Van-Dycke Sarpong Asare Geophysics Section, Department of Physics, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
  • Reginald Mensah Noye Geophysics Section, Department of Physics, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
Keywords: Electrical Resistivity, Induced Polarization, Refuse Dump, Mapping, Leachate

Abstract

Contamination from landfills as a result of leaching from organic and inorganic waste poses a threat to the environment because, subsoil and groundwater are affected. The contamination is more serious in developing countries where waste management is inefficient. The aim of this study was to determine the extent of pollution at this site. Three profiles were surveyed: two in North-South direction and the third in Northeast-Southwest. 2D electrical resistivity and Time Domain Induced Polarization (TDIP) data sets have been acquired along the three profiles in Boadi Community. Electrical resistivity and induced polarization together with excavations were successful in mapping the extent of the leachate plume. The study demarcated clearly three main zones: the first, second and third zones indicated chargeabilities > 12.8 msec near the surface, > 6.4 msec and > 12.8 msec at the base respectively. Similarly, resistivities < 12 Ωm, 12 to 24 Ωm and >192 Ωm for the first, second and third zones respectively were delineated. The relatively lower electrical resistivity areas were thought to be due to the presence of the leachate plume and the comparatively higher chargeability zones were interpreted as duricrust. The relatively lower chargeability represents absence of polarizable materials. The study also delineated the weathered basement granodiorites showing relatively higher resistivities. These TDIP and ERT results show that the methods have been successful in mapping the landfill leachate plume. The results from the resistivity and chargeability compare very well with the excavations.

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Published
2020-12-31
How to Cite
Acheampong Aning, A., Sarpong Asare, V.-D., & Mensah Noye, R. (2020). Electrical Resistivity And Induced Polarization Imaging For Refuse Dump Site. European Scientific Journal, ESJ, 16(36), 361. https://doi.org/10.19044/esj.2020.v16n36p361
Section
ESJ Natural/Life/Medical Sciences