The importance of systematic trends in trace contaminant leaching from waste materials and stabilized waste is stressed. Similarities in leaching behaviour of different waste materials and mechanisms for leaching from stabilized waste forms are identified. The use of diffusion measurements to quantify the mobility of specific chemical species in waste and soil is discussed. Implementation of more fundamental regulatory testing procedures which reflect the behaviour of materials in end use applications, is recommended to allow better control over environmental impact in the wide variety of utilization and disposal practices.
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Van der Sloot, H.A., de Groot, G.J., Wijkstra, J. & Leenders, P. (1989), Leaching characteristics of incinerator residues and potential for modification of leaching. In Proceedings of the International Conference on Municipal Solid Waste Combustion , Hollywood, Florida, April.
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Van der Sloot, H.A., De Groot, G.J., Wijkstra, J. & Van der Wegen, G.J. (1990), Karakterisering van het uitloggeding van anorganische componenten uit bouwmaterialen waarin primaire en secundaire grondstoffen zign verwerkt. Proceedings Workshop Bouwstoffen besluit, Bilthoven, 1 November 1989, in press.
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