Investigations of natural attenuation in groundwater near a landfill and implications for landfill post-closure.
Waste Manag Res
; 29(1): 77-88, 2011 Jan.
Article
en En
| MEDLINE
| ID: mdl-21078693
ABSTRACT
The controlled landfill technology is now adopting passive attenuation techniques as an increasing number of landfill sites reach the post-closure phase. During the post-closure phase, landfill operators need to convince environmental authorities that landfills no longer pose a threat to health or the environment. The demonstration of acceptable risk should rely in particular on data collected during environmental monitoring in addition to modelling of possible future evolutions of environmental concentrations. One difficulty that is typically encountered in France is related to the fact that groundwater monitoring systems around landfills are often insufficiently detailed to provide conclusive evidence of natural attenuation mechanisms. This paper presents data on groundwater quality in the vicinity of an old landfill located in a complex aquifer system. While isotopic data show a signature of the landfill leachate in the groundwater in the vicinity of the landfill, chemical analyses do not suggest a strong influence, which could be indicative of natural attenuation mechanisms in the groundwater. However, the complexity of the groundwater system in this area is such that it cannot be excluded that a pollutant flux is being overlooked. Implications of demonstrating natural attenuation during the landfill post-closure phase, with respect to groundwater monitoring, are discussed.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Contaminantes Químicos del Agua
/
Eliminación de Residuos
/
Monitoreo del Ambiente
País/Región como asunto:
Europa
Idioma:
En
Revista:
Waste Manag Res
Asunto de la revista:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Año:
2011
Tipo del documento:
Article
País de afiliación:
Francia