We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Surfactant enhanced desorption of TNT from soil
- Authors
Acar, Y. B.; Gale, R. J.; Soewarto, I. H.; Taha, M. R.; Zappi, M. E.
- 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 andBrij 35) surfactants were first tested at concentrations ranging from 0.1 to 1%. The anionic and nonionic surfactants were further testedat 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 atconcentrations 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 constitutethe underlying reason. TNT was significantly desorbed when the concentrations of Tween 80, DOWFAX 80 and SDS were increased up to 10%.
- Subjects
SOIL pollution
- Publication
Water, Air & Soil Pollution, 1997, Vol 100, Issue 1-2, p33
- ISSN
0049-6979
- Publication type
Article