10.4122/1.1000001170
Fach, S.
S.
Fach
Geiger, W. F.
W. F.
Geiger
Modelling sorption of 3 heavy metals by porous pavements
DTU Library, Technical University of Denmark (DTU)
2005
Conference full text
road runoff infiltration
porous pavements
sorption capacity of heavy metals
long term modelling
University Of Duisburg-Essen, Department Of Civil Engineering
Department Of Civil Engineering
University Of Duisburg-Essen
2005
en
10.4122/1.1000001169
application/pdf
Due to the implementation of sustainable water management (systems) in Germany more and more infiltration facilities have been built in the last few years. As the infiltration of rainwater reduces the hydraulic stress and pollution of rivers and lakes by combined sewer overflows when heavy rainfall occurs, the infiltration of rainwater has been excluded from compulsory sewage disposal by law in several Federal States. Particularly in the Emscher catchment area \342\200\223 a densely populated area in North Rhine Westphalia \342\200\223 there is often not enough space for topsoil infiltration facilities and in addition to this, the distance between groundwater table and surface is often not sufficient for subsoil infiltration facilities. Therefore, the use of permeable pavements as an infiltration measure for areas with little or no traffic can be an appropriate solution. The infiltration of urban runoff always implies a seepage of substances into the soil and groundwater at specific entry points. In order to prevent a \342\200\234shifting of the pollutant problem\342\200\235 from the wastewater plant and from the receiving water to the soil and groundwater, the long term effect of infiltration was modelled for 50 years of operation time. The modelling was done for the relevant heavy metals in surface runoffs zinc, copper and lead.