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Title:
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Staalslakuitloging bij toepassing als oeverbescherming. Laboratorium-, veld- en modelleringsgegevens
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Author(s):
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Published by:
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Publication date:
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ECN
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1-10-1995
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ECN report number:
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Document type:
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ECN-C--95-118
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ECN publication
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Number of pages:
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Full text:
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124
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Download PDF
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Abstract:
A bench-scale investigation of the leaching performance of industrialslags (phosphorus slag, furnace slag, steel slag, and mining stones). The
main subject was to study the impact of the chemical properties (in
particular the reducing capacity) of such materials on the leaching when
applied in bank revetments. Also attention has been paid to the up-scaling of
the bench-scale experiments to field tests. Quantitative data are compiled of
the leaching performance for different pH-values, the leaching process under
reducing and under oxidizing conditions, the determination of the emission
speed of S-species, oxidation and neutralization by air, boundary condition
phenomenons, the reducing capacity, and the composition of the slags. Also a
modelled calculation (spread-sheet) of the progress of the redox and the pH
in a testing facility has been executed for circa one year. By means of a
chemical speciation model it has been investigated which mineral phases in
the slag determine the leaching process. 24 refs.
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