Risk assessment of contaminants leaching to groundwater in an infrastructure project

Conference paper
Part of the Alliance for Global Sustainability Bookseries book series (AGSB, volume 19)

Abstract

Possible risks posed by rebuilding of a road and railway within a contaminated area have been studied by assessing the mobility of metals in soil through analysis of field samples, leaching tests and calculations of distribution Kd coefficients. The results from the standardized leaching tests showed a very high release of Pb, but also high release of Zn, Cu, Ni and As. The site specific Kd values determined showed that Cr and Pb are the metals most strongly bonded in the soil, and that As is the most easily released. Input of humus colloids increased the leaching of Cu, Pb and Zn and show on potential risk with enhanced leaching if flooding of the river or excavation activities at the site. It was concluded that Pb and As constitute the highest risk of leaching from the landfill site.

Keywords

Inductively Couple Plasma Mass Spectrometry Landfill Site Simulated Acid Rain Iron Colloid Organic Colloid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  1. 1.Water Environment Technology, Department of Civil and Environmental EngineeringChalmers University of TechnologyGöteborgSweden

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