Titre :
|
Engineering geological assessment of a proposed waste disposal site in coastal southwestern Ghana
|
Auteurs :
|
E. Frempong
|
Type de document :
|
article/chapitre/communication
|
Année de publication :
|
1999
|
Format :
|
p.255-260
|
Langues:
|
= Anglais
|
Catégories :
|
SOL GEOLOGIE
|
Mots-clés:
|
GHANA
;
DECHARGE
;
GEOLOGIE
;
PROPRIETE DU SOL
;
HYDROGEOLOGIE
|
Résumé :
|
An engineering geological investigation has been undertaken of a proposed landfill site in coastal southwestern Ghana which is characterized by torrential rains, high relative humidity, shallow groundwater conditions and almost surrounded by a ridge. The study shows that the site has some desirable characteristics such as availability of suitable soils for the construction of the capping and bottom liners of the landfill, a large tract of land for landfilling operation and its location close to a major highway. However, the groundwater table was shallow and there was a high potential for leachate intrusion into and consequent contamination of nearby groundwater abstraction wells and surface potable water sources thereby constituting serious threat to life. Construction costs could be prohibitive as extensive dewatering and backfilling of vast portions of the project site would be required to enable the provision of a separation between the shallow water table and the bottom of the landfill.
|
Source :
|
Environmental geology, vol 37, n°3
|