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The leaching of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) was measured in soil and standard fly ash column eluted with pure water and linear alkylbenzene sulfonate (LAS) - water. The data obtained were used to evaluate the leachability of PCDD/Fs from waste dump like incineration residual slag and fly ash deposition. The leaching rate was shown to be increased significantly by...
Leaching experiments from fly ash and soil with fire-extinguishing water result in significant amounts of PCDD/F in the related leachates. In contrast to the water solubilities the higher chlorinated congeners are leached more easily than the low chlorinated tetra- and penta-congeners. Obviously, the cosolvents present in the fire-extinguishing water enhances PCDD/F solubilities.
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