TY - JOUR
T1 - Vetiver grass is capable of removing TNT from soil in the presence of urea
AU - Das, Padmini
AU - Datta, Rupali
AU - Makris, Konstantinos C.
AU - Sarkar, Dibyendu
PY - 2010/5
Y1 - 2010/5
N2 - 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.
AB - 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.
KW - 2,4,6-trinitrotoluene (TNT)
KW - Bioremediation
KW - Chaotropic effect
KW - Phytoremediation
KW - Urea
UR - http://www.scopus.com/inward/record.url?scp=77949915677&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77949915677&partnerID=8YFLogxK
U2 - 10.1016/j.envpol.2009.12.011
DO - 10.1016/j.envpol.2009.12.011
M3 - Article
C2 - 20047780
AN - SCOPUS:77949915677
SN - 0269-7491
VL - 158
SP - 1980
EP - 1983
JO - Environmental Pollution
JF - Environmental Pollution
IS - 5
ER -