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IS-MOBIL-Mobilitetsprogr.f.utl.Ph.D-stu

Active materials for the in-situ stabilisation of contaminated soil

Tildelt: kr 0,11 mill.

Numerous soils worldwide act as a sink for contaminant inputs from urban and industrial activity including waste water discharge as well as from the atmosphere, all of which result in severe contamination. Remaining soil legacy pollution containing persis tent organic pollutants and heavy metals presents a significant environmental problem. Remediation via removing and subsequently treating or disposing of contaminated soils is costly and as such alternative treatments that can reduce the risk of contamina nts in soils without the need of large scale energy-intensive, soil removal and treatment processes should be sought. The overall aim of the "Active materials for the insitu stabilisation of contaminated soil" project being carried out at the Norwegian G eotechnical Institute in collaboration with one Norwegian research partner (Bioforsk) and four international partners, is to develop a methodology for the chemical stabilisation of contaminated soil through the addition of small amounts of actively sorbin g materials which will address the above need. Soil provides a relatively unexplored media for testing sorbent amendment techniques. It remains a considerable challenge to homogeneously add and mix sorbents to contaminated sites. Aging effects such as so rbent degradation and associated contaminant release have the potential to reduce amendment efficiency. It is anticipated that the project will provide an ecologically, politically and economically sustainable recovery for contaminated soils, by making dangerous and toxic pollutants nonavailable to organisms and plants by binding them very strongly to sorbents, thus reducing the risk of pollutant spreading. Overall dissemination of project results is expected to reach regulators, educators, the wider s cientific community and industry through organised workshops, seminars and publications.

Budsjettformål:

IS-MOBIL-Mobilitetsprogr.f.utl.Ph.D-stu