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Title:
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Laboratorium onderzoek naar de invloed van reducerendeeigenschappen op het emissie-gedrag van industrieslakken in
oeverbeschermingen
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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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1995
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ECN report number:
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Document type:
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ECN-C--94-094
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ECN publication
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Number of pages:
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Full text:
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166
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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 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 (MINTEQA2) it has been investigated
which mineral phases in the slag determine the leaching process. 52 figs., 21
tabs., 8 appendices, 26 refs.
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