Simulation of heavy metal pollution from stormwater infiltration through a porous pavement with reservoir structure

A laboratory experiment was set up to examine the ability of porous asphalt to retain metallic pollution. The results obtained confirm the retention of metals (Pb, Cu, Cd, Zn) by clogging particles, and a decrease in lead concentration can be observed in infiltrated runoff water. Moreover, the simul...

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Bibliographic Details
Published in:Water science and technology 1999, Vol.39 (2), p.119-125
Main Authors: Legret, M., Nicollet, M., Miloda, P., Colandini, V., Raimbault, G.
Format: Article
Language:English
Subjects:
Applied sciences
Asphalt
Buildings. Public works
Cadmium
Computer simulation
Copper
Exact sciences and technology
Groundwater
Groundwater pollution
Heavy metal
Heavy metals
Infiltration
Lead
Migration
modelling
Pollution
porous pavement
Runoff
Sewerage works: sewers, sewage treatment plants, outfalls
Sewerage. Sewer construction
Simulation
Soil
Stormwater
Water pollution
Water treatment and pollution
Zinc
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Summary:A laboratory experiment was set up to examine the ability of porous asphalt to retain metallic pollution. The results obtained confirm the retention of metals (Pb, Cu, Cd, Zn) by clogging particles, and a decrease in lead concentration can be observed in infiltrated runoff water. Moreover, the simulation of heavy metal transfer into the soil was carried out using the mathematical model LEACHM. The increase of Pb, Cu and Zn contents in soil appears slight after SO years and well below regulation threshold values. The increase of Cd content is relatively more important. For infiltrated water, the results show a pollutant migration, especially for Cd, down to 30 cm. Nevertheless, the risk of groundwater pollution appears low.
ISSN:0273-1223
1996-9732
DOI:10.1016/S0273-1223(99)00015-3