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Fastlink of full TGIF record #98264

The fastlink for this record is: https://tic.msu.edu/tgif/flink?recno=98264
Full TGIF Record # 98264
Item 1 of 1
Web URL(s):http://www.tandfonline.com/doi/pdf/10.1081/PFC-200026789
    Last checked: 10/09/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
Publication Type:
i
Report
Author(s):Ahmad, Riaz; Kookana, Rai S.; Alston, Angus M.
Author Affiliation:Ahmad and Alston: Department of Soil and Water, Adelaide University, Waite Campus, Glen Osmond, Australia; Kookana: CSIRO Land and Water, Glen Osmond, Australia
Title:Surfactant-enhanced release of carbaryl and ethion from two long-term contaminated soils
Source:Journal of Environmental Science and Health: Part B: Pesticides, Food Contaminants, and Agricultural Wastes. Vol. B39, No. 4, 2004, p. 565-576.
# of Pages:12
Publishing Information:New York: Marcel Dekker
Keywords:TIC Keywords: Surfactants; Pesticides; Contaminants; Solubility; Ethion; Carbaryl; Ethanol; Solutions; Sorption; Hydrophobic soils; Soil contamination; Toxicity; Effluent water
Trade Names:Triton X-100; Brij35; Ethylan GE08; Ethylan CD127; Ethylan CPG660
Abstract/Contents:"The potential of five nonionic surfactants, Triton X-100, Brij35, Ethylan GE08, Ethylan CD127, and Ethylan CPG660 for enhancing release of carbaryl and ethion from two long-term contaminated soils was evaluated using the batch method. Incorporation of the surfactants into soils enhanced the release of both pesticides to various extents, which could be related to the type of pesticides and type and the amount of surfactants added. Release of ethion was dramatically enhanced by aqueous concentrations of surfactants above their critical micelle concentration values. This was attributed to soluability enhancement through incorporation of the highly hydrophobic compound within surfactant micelles. A concentration of 10 g L-1 of various surfactants released >70% of the total ethion from the soil irrespective of the surfactant. For carbaryl, the surfactants were effective at low concentrations and dependence on concentration was lower than in the case of ethion. The ethylan surfactants (GE08, CD127, and CPG660) had a higher potential than Triton X-100 and Brij35 for releasing the pesticides. However, there was still a significant portion of carbaryl (11% of the total) and ethion (17% of the total) left in the soil. Our study also showed that there must be an optimal concentration of each surfactant to maximize the mass transfer of pesticides. At some threshold concentration level, additional surfactant started to inhibit the mass transfer of solute from the soil into the water. The results suggested that the surfactants could help remidiation of soils polluted by pesticides. The choice of surfactant should be made based on the properties of pesticides."
Language:English
References:23
Note:Figures
Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Ahman, R., R. S. Kookana, and A. M. Alston. 2004. Surfactant-enhanced release of carbaryl and ethion from two long-term contaminated soils. J. Environ. Sci. Health. B39(4):p. 565-576.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=98264
If there are problems with this record, send us feedback about record 98264.
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Web URL(s):
http://www.tandfonline.com/doi/pdf/10.1081/PFC-200026789
    Last checked: 10/09/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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MSU catalog number: QH 545 .P4 J6
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