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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/pdfs/21/1/JEQ0210010121
Last checked: 12/12/2016
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| Publication Type:
| Refereed |
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| Author(s): | Kempton, Houston;
Davis, Andy;
Olsen, Roger |
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| Author Affiliation: | PTI Environmental Services, Colorado; PTI Environmental Serivces, Colorado; Camp, Dresser and McKee, Colorado |
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| Title: | Remediation of solvent-contaminated soils by aeration |
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| Source: | Journal of Environmental Quality. Vol. 21, No. 1, January-March 1992, p. 121-128. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
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| Keywords: | TIC Keywords: Solvents; Soil contamination; Aeration
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| Abstract/Contents: | A bench-scale box test was performed to evaluate the feasibility of rototilling to remediate excavated soils contaminated with tetrachloroethylene (PCE), trichloroethylene (TCE), and 1,1,1-trichloroethane (1,1,1-TCA). Two clay-rich soils (A and B) containing 0.15% organic C and different concentrations of the target analytes were placed in 15-cm thick layers under a 10 km h-1 wind, tilled daily, and samples collected and analyzed periodically. Soil A (25 000 u[mu]g kg-1 PCE) lost 80% after 24 h and 97% after 407 h. Soil B (8881 u[mu]g kg-1 PCE) lost 29% after 24 h and 92% after 407 h. Initial TCE and 1,1,1-TCA concentrations ranged from 793 to 1570 u[mu]g kg-1. Relative volatilization loss rates were similar to that of PCE. The average volaitilization half-lives of the solvents were 1.2 d for PCE, 0.58 d for TCE, and 0.64 d for 1,1,1-TCA. Removal of the analytes slowed considerably after 200 h, with a small (10%) amount of each analyte retained in refractory sites. Residual solvent concentrations in soils A and B after 407 h were 835 and 719 u[mu]g kg-1 PCE, 38 and 95 u[mu]g kg-1 TCE, and 21 and 31 u[mu]g kg-1 1,1,1-TCA. Simulations of volatilization using the pesticide root zone model (PRZM) accurately predicted the loss of PCE, TCE, and 1,1,1-TCA over the first 24 h when most of the solvent volatized, but the model overpredicted contaminant losses at longer durations when remnant soil concentrations were less than six times the concentration bound to refractory sites. |
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| Language: | English |
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| References: | 23 |
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| Note: | Pictures, b/w
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kempton, H., A. Davis, and R. Olsen. 1992. Remediation of solvent-contaminated soils by aeration. J. Environ. Qual. 21(1):p. 121-128. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/pdfs/21/1/JEQ0210010121
Last checked: 12/12/2016
Requires: PDF Reader
Notes: Item is within a limited-access website |
| 
MSU catalog number: S 900 .J6 |
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