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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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Mobility reduction of 2,4,6-trinitrotoluene (TNT) was tested by amending monopotassium phosphate (MKP) and montmorillonite to a firing range soil contaminated with TNT. While addition of MKP enhanced sorption of TNT on soil matrix, and combined use of MKP with montmorillonite significantly decreased desorption of TNT as well as remarkably increased the TNT sorption. Montmorillonite amendment by 5% of soil mass resulted in TNT desorption of 0.12 mg/kg from soil loaded with 9.93 mg/kg-TNT. The decrease of TNT desorption was proportional to the amount of montmorillonite amended. At 10 and 15% amendment, only 0.79 and 1.23 mg/kg-TNT was desorbed from 29.33 and 48.80 mg/kg-TNT. In addition, the leaching of TNT with synthetic precipitation leaching procedure (SPLP) and hydroxypropyl-${\beta}$-cyclodextrin (HPCD) decreased, indicating that TNT in MKP/montmorillonite-treated soil became more stable and less leachable. The results demonstrate that addition of MKP and montmorillonite to TNT-contaminated soil reduces the mobility of TNT from soil not only by increasing TNT sorption, but also decreasing TNT desorption. It was found that MKP and montmorillonite amendments by 5 and 10% of soil mass, respectively, were optimal for reducing the mobility of soil TNT.
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참고문헌 (20)
참고문헌 신청
Boyd, S. A. / 2001 / Mechanisms for the adsorption of substituted nitrobenzenes by smectite clays / Environ. Sci. Technol 35:4227~4234
Chen, B. / 2009 / Effect of background electrolytes on the adsorption of nitroaromatic compounds onto bentonite / J. Environ. Sci. 21:1044~1052
Haderlein, S. B. / 1996 / Specific adsorption of nitroaromatic explosives and pesticides to clay minerals / Environ. Sci. Technol 30:612~622
Hatzinger, P. B. / 2004 / Enhancing the attenuation of explosives in surface soils at military facilities: Sorption-desorption isotherms / Environ. Toxicol. Chem 23:306~312
Im, S. / 2015 / Effect of soil conditions on natural attenuation of 2,4,6-trinitrotoluene (TNT)by UV photolysis in soils at an active firing range in South Korea / J. Soils Sediments 15:1455~1462
Chen, B. / 2009 / Effect of background electrolytes on the adsorption of nitroaromatic compounds onto bentonite / J. Environ. Sci. 21:1044~1052
Haderlein, S. B. / 1996 / Specific adsorption of nitroaromatic explosives and pesticides to clay minerals / Environ. Sci. Technol 30:612~622
Hatzinger, P. B. / 2004 / Enhancing the attenuation of explosives in surface soils at military facilities: Sorption-desorption isotherms / Environ. Toxicol. Chem 23:306~312
Im, S. / 2015 / Effect of soil conditions on natural attenuation of 2,4,6-trinitrotoluene (TNT)by UV photolysis in soils at an active firing range in South Korea / J. Soils Sediments 15:1455~1462
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