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USGS · 70022923

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

J.A. Lebo·J.N. Huckins·J. D. Petty·K.T. Ho·E.A. Stern
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Abstract

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.

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J.A. Lebo, J.N. Huckins, J. D. Petty, K.T. Ho, E.A. Stern. 2000. Selective removal of organic contaminants from sediments: A methodology for toxicity identification evaluations (TIEs). https://doi.org/10.1016/s0045-6535(99)00270-2

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