TITLE:
Study of the Akouedo Landfill (Abidjan) Using the Electrical Resistivity Method: Implications for the Risk of Contamination of the Continental Terminal Water Table
AUTHORS:
Ehui Beh Jean Constantin Aka, Loukou Nicolas Kouame, Kouassi Eric Germain Kouakou
KEYWORDS:
Landfill, Continental Terminal Aquifer, Electrical Sounding, Akouédo, Abidjan
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.11 No.11,
November
27,
2023
ABSTRACT: An electrical resistivity survey was carried out on the household and
industrial waste disposal site (landfill) of Akouédo (Central Abidjan) with a
view to searching for a possible layer of clay in the stratification which
could constitute a protective screen of the aquifer of the Continental Terminal
of Abidjan against the migration of leachate. Electrical surveys (SE) carried
out according to the Schlumberger configuration showed that the stratigraphy of
the area is composed of three to four geoelectric layers depending on the SE
positions. The correlation with the lithology of two piezometric boreholes
carried out indicates that the lithology of the study area is dominated by
clayey sand, sand, sandy clay and clay. The average thickness of accumulated
waste varies between 30 and 40 m. The virtual absence of a continuous layer of clay under the waste
exposes the Continental Terminal aquifer to contamination by leachate from
waste accumulated over several decades in the Akouedo area.