Selective removal of organic contaminants from sediments: a methodology for toxicity identification evaluations (TIEs)

Aqueous slurries of a test sediment spiked with dibenz[a,h]anthracene, 2,4,5,2′,4′,5′-hexachlorobiphenyl, p,p′-DDE, or phenanthrene were subjected to decontamination experimentation. The spiked sediments were agitated at elevated temperatures for at least 96 h in the presence of either of the two co...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2000-04, Vol.40 (8), p.811-819
Main Authors: Lebo, J.A., Huckins, J.N., Petty, J.D., Ho, K.T., Stern, E.A.
Format: Article
Language:English
Subjects:
1,2-5,6-Dibenzanthracene
Absorption
DDE
Decontamination
Environmental Pollution - prevention & control
Geologic Sediments - chemistry
hexachlorobiphenyl
Hydrophobic contaminants
Membranes, Artificial
Organic Chemicals - analysis
Organic Chemicals - pharmacokinetics
Polyethylene
Sediment
Soil Pollutants - pharmacokinetics
Temperature
TIE
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Summary:Aqueous slurries of a test sediment spiked with dibenz[a,h]anthracene, 2,4,5,2′,4′,5′-hexachlorobiphenyl, p,p′-DDE, or phenanthrene were subjected to decontamination experimentation. The spiked sediments were agitated at elevated temperatures for at least 96 h in the presence of either of the two contaminant-absorbing media: clusters of polyethylene membrane or lipid-containing semipermeable membrane devices (SPMDs). The effects of treatment temperature and surface area of media on the removal of contaminants were explored. This work is part of a larger methodology for whole-sediment toxicity identification evaluation (TIE). A method is being sought that is capable of detoxifying sediments with respect to organic contaminants while leaving toxicity attributable to inorganic contaminants unaffected.
ISSN:0045-6535
1879-1298
DOI:10.1016/S0045-6535(99)00270-2