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Title: Vetiver grass is capable of removing TNT from soil in the presence of urea
Authors: Das, Padmini K. 
Datta, Rupali K. 
Sarkar, Dibyendu 
Makris, Konstantinos C. 
Major Field of Science: Natural Sciences
Field Category: Earth and Related Environmental Sciences
Keywords: 2,4,6-trinitrotoluene (TNT);Urea;Phytoremediation;Chaotropic effect;Bioremediation
Issue Date: May-2010
Source: Environmental Pollution, 2010, Volume 158, Issue 5, Pages 1980-1983
Abstract: The high affinity of vetiver grass for 2,4,6 trinitrotoluene (TNT) and the catalytic effectiveness of urea in enhancing plant uptake of TNT in hydroponic media we earlier demonstrated were further illustrated in this soil-pot-experiment. Complete removal of TNT in urea-treated soil was accomplished by vetiver at the low initial soil-TNT concentration (40 mg kg−1), masking the effect of urea. Doubling the initial TNT concentration (80 mg kg−1) significantly (p < 0.002) increased TNT removal by vetiver, in the presence of urea. Without vetiver grass, no significant (p = 0.475) change in the soil-TNT concentrations was observed over a period of 48 days, suggesting that natural attenuation of soil TNT could not explain the documented TNT disappearance from soil.
ISSN: 0269-7491
Rights: © Elsevier Ltd.
Type: Article
Affiliation : Michigan Technological University 
Montclair State University 
Cyprus University of Technology 
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