||Solvent Washing of Aged PCP Contaminated Soils.
Khodadoust, A. P.;
Wagner, J. A.;
Suidan, M. T.;
Safferman., S. I.;
||Cincinnati Univ., OH. Dept. of Civil and Environmental Engineering.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Water pollution control;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||The study evaluates the removal of pentachlorophenol (PCP), a wood preserving agent, from soils that have been contaminated over a period of time. Previously, equal proportions of ethanol and water were found to have the highest PCP removal efficiencies for above ground batch extractions at various soil:solvent ratios. In addition, the 50% and 75% ethanol solutions achieved higher removal efficiencies at low solvent throughputs in in-situ soil flushing experiments. In batch extraction tests, the 50% ethanol solution obtained higher PCP removal efficiencies for all soil fractions than the DI water and 100% ethanol solution. The PCP removal efficiency for in-situ above ground soil washing experiments was consistently higher for the 100x140 U.S. mesh soil, regardless of the aging period. In addition, for both in-situ flushing and above ground tests, a lower PCP removal efficiency was obtained for the 20x40 U.S. mesh soil conditioned at 60 C than that for the same soil fraction aged at room temperature. (Copyright (c) 1993 Water Environment Federation).
||See also PB92-180025. Pub. in Proceedings of the Annual Conference and Exposition (66th), Water Environment Federation, Anaheim, CA., October 3-7, 1993, p213-222. Sponsored by Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
||Reprint: Solvent Washing of Aged PCP Contaminated Soils.
||68C; 68D; 71R; 43F; 91A
||PC A03/MF A01