In:
Waste Management & Research: The Journal for a Sustainable Circular Economy, SAGE Publications, Vol. 18, No. 6 ( 2000-12), p. 577-589
Abstract:
A case study was carried out at an old landfill site (Riet site) located in Winterthur, northern Switzerland. The Riet site contains mainly municipal solid wastes (MSW) comprising four discrete unlined landfill compartments, the oldest of which dates back to 1918. One goal of the case study was to assess the investigative techniques used to determine the risk of groundwater contamination. Waste compartments and leachate plumes were delineated with the electromagnetic method EM31 and with tracer methods. The most efficient methods for a risk assessment were flow modelling based on reliable hydraulic head and hydraulic conductivity measurements, and chemical analyses. Chemical analyses of leachate and groundwater samples showed that the older compartments of the landfill pose only a small risk to the groundwater. The other goal of the study was to determine the long-term risk of groundwater contamination posed by MSW landfills of different ages. To this end, chemical concentrations of leachate from the Riet site were compared with those of other MSW landfills of various ages. The long-term risk of landfill compartments older than about 1960 can be considered in general to be considerably smaller than that of younger ones. Age of the compartment and leachate concentrations could be correlated.
Type of Medium:
Online Resource
ISSN:
0734-242X
,
1096-3669
DOI:
10.1177/0734242X0001800609
Language:
English
Publisher:
SAGE Publications
Publication Date:
2000
detail.hit.zdb_id:
1480483-9
detail.hit.zdb_id:
46937-3
Bookmarklink