Model studies of corrosion induced copper runoff fate in soil
2006 (English)In: Environmental Toxicology and Chemistry, ISSN 0730-7268, E-ISSN 1552-8618, Vol. 25, no 3, 683-691 p.Article in journal (Refereed) Published
Laboratory experiments have been performed with 3-cm soil columns simulating the fate of corrosion-induced copper runoff in contact with soil. The investigation simulates approximately 30 years (assuming an infiltration surplus of 25 cm/year) of continuous percolation of copper containing runoff water of a concentration realistic at the immediate release situation (4.8 mg/L) into four soils representative of urban conditions. Two of the three investigated topsoils reached their breakthrough of copper within the simulated time, while the third topsoil did not show a breakthrough. The subsoil reached a breakthrough after approximately 10 years of simulated exposure. To simulate more realistic outdoor scenarios, the laboratory-obtained breakthrough curves were modeled with Hydrus-1D (R) using a Langmuir-Freundlich model to describe copper sorption, the parameters of which were estimated from soil properties (pH, organic carbon content). The model predicts longer breakthrough times with increasing pH and organic content of the soil and with decreasing concentrations of copper and dissolved organic carbon in the runoff water. The time span for copper in runoff water (at concentrations of 0.01-10 mg/L) to reach a soil depth of 50 cm varied between 170 and more than 8,000 years for the predicted field scenarios.
Place, publisher, year, edition, pages
2006. Vol. 25, no 3, 683-691 p.
Copper, Hydrus-1D, Risk assessment, Runoff, Solute transport, Computer simulation, Mathematical models, pH effects, Risk assessment, Runoff, Hydrus-ID, Solute transport, Soils, organic carbon, runoff, environmental fate, runoff, solute transport, chemical composition, concentration (parameters), conference paper, corrosion, environmental impact, environmental parameters, model, pH, prediction, priority journal, risk assessment, sediment transport, simulation, soil analysis, soil pollution, soil property, Agriculture, Environmental Monitoring, Environmental Pollutants, Hydrogen-Ion Concentration, Rain, Risk, Risk Assessment, Soil, Soil Pollutants, Sweden, Time Factors, Water, Water Movements
Other Environmental Engineering
IdentifiersURN: urn:nbn:se:kth:diva-5059DOI: 10.1897/05-026R.1ISI: 000235700600008PubMedID: 16566152ScopusID: 2-s2.0-33644655215OAI: oai:DiVA.org:kth-5059DiVA: diva2:7731
QC 20100901. Uppdaterad från Submitted till Published 20100901. Conference: Symposium on Risk Assessment of Metals in Soils. Prague, CZECH REPUBLIC. APR 18-22, 20042005-04-252005-04-252011-10-04Bibliographically approved