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LAND TREATMENT AND THE TOXICITY RESPONSE OF SOIL CONTAMINATED WITH WOOD PRESERVING WASTE
Citation:
Huling, S., D. Pope, J. Matthews, J. Sims, R. Sims, AND D. Sorensen. LAND TREATMENT AND THE TOXICITY RESPONSE OF SOIL CONTAMINATED WITH WOOD PRESERVING WASTE. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-95/209.
Description:
Soils contaminated with wood preserving wastes, including pentachlorophenol (PCP) and creosote, are treated at a field-scale in an engineered prepared-bed system consisting of two one-acre land treatment units (LTUs). he concentration of selected indicator compounds of treatment performance included PCP, pyrene, and total carcinogenic polycyclic aromatic hydrocarbons (TCPAHs) was monitored in the soil by taking both composite soils samples at multiple points in time, and discreet soil samples at tow point sin time. he mean concentration of th indictor compounds and the 95-percent confidence interval (CI) of the composite and discrete samples agreed relatively well, and first-order degradation rate kinetics satisfactorily represented the means chemical concentration loss of indictor compounds in the LTU. oxicity of the soil, as measured by Microtox assay of the soil extracts, indicated that toxicity reduction corresponded with indicator compound disappearance. o toxicity effects were observed with time in treated layers of soil (lifts) buried beneath highly contaminated lifts of newly applied soil. his indicated that vertical migration of soluble contaminants from such lifts had little effect on the microbial activity in the underlying treated soil.