Surfactant enhanced desorption of TNT from soil

Mohd. Raihan Taha, I. Henry Soewarto, Yalcin B. Acar, Robert J. Gale, Mark E. Zappi

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Surfactant enhanced desorption of 2,4,6-trinitrotoluene (TNT) from contaminated soils at a military site was investigated. Anionic (SDS and DOWFAX 8390), cationic (CTAC and CTAB), and nonionic (Tween 80 and Brij 35) surfactants were first tested at concentrations ranging from 0.1 to 1%. The anionic and nonionic surfactants were further tested at concentrations of up to 10%. Anionic surfactants, particularly SDS, provided the best desorption of TNT from the soil. There was not any increase in TNT desorption for both the nonionics and cationics at concentrations ranging between 0.1 to 1% and the extent of desorption was found to be lower than the TNT desorption only by water. The competition of the negatively charged soil surfaces for the positively charged cationics and the neutral nonionic surfactants may constitute the underlying reason. TNT was significantly desorbed when the concentrations of Tween 80, DOWFAX 80 and SDS were increased up to 10%.

Original languageEnglish
Pages (from-to)33-48
Number of pages16
JournalWater, Air, and Soil Pollution
Volume100
Issue number1-2
Publication statusPublished - Nov 1997

Fingerprint

Trinitrotoluene
trinitrotoluene
Surface-Active Agents
surfactant
Desorption
desorption
Surface active agents
Soils
Polysorbates
Anionic surfactants
Nonionic surfactants
soil
soil surface
Water

Keywords

  • 2,4,6-trinitrotoluene
  • Decontamination
  • Desorption
  • Explosive
  • Soil contamination
  • Surfactant
  • TNT

ASJC Scopus subject areas

  • Atmospheric Science
  • Pollution
  • Environmental Science(all)
  • Environmental Chemistry
  • Water Science and Technology
  • Earth-Surface Processes

Cite this

Taha, M. R., Soewarto, I. H., Acar, Y. B., Gale, R. J., & Zappi, M. E. (1997). Surfactant enhanced desorption of TNT from soil. Water, Air, and Soil Pollution, 100(1-2), 33-48.

Surfactant enhanced desorption of TNT from soil. / Taha, Mohd. Raihan; Soewarto, I. Henry; Acar, Yalcin B.; Gale, Robert J.; Zappi, Mark E.

In: Water, Air, and Soil Pollution, Vol. 100, No. 1-2, 11.1997, p. 33-48.

Research output: Contribution to journalArticle

Taha, MR, Soewarto, IH, Acar, YB, Gale, RJ & Zappi, ME 1997, 'Surfactant enhanced desorption of TNT from soil', Water, Air, and Soil Pollution, vol. 100, no. 1-2, pp. 33-48.
Taha MR, Soewarto IH, Acar YB, Gale RJ, Zappi ME. Surfactant enhanced desorption of TNT from soil. Water, Air, and Soil Pollution. 1997 Nov;100(1-2):33-48.
Taha, Mohd. Raihan ; Soewarto, I. Henry ; Acar, Yalcin B. ; Gale, Robert J. ; Zappi, Mark E. / Surfactant enhanced desorption of TNT from soil. In: Water, Air, and Soil Pollution. 1997 ; Vol. 100, No. 1-2. pp. 33-48.
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