Premium
Use of surfactants and blends to remove DDT from contaminated soils
Author(s) -
Rios L. E.,
David M.,
VazquezArenas J.,
Anderson W. A.
Publication year - 2013
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.21620
Subject(s) - pulmonary surfactant , chemistry , leaching (pedology) , soil water , contamination , environmental chemistry , benzene , chromatography , sodium , chemical engineering , organic chemistry , environmental science , soil science , ecology , biochemistry , biology , engineering
Removal of dichloro‐diphenyl‐trichloroethane (DDT) from soils using surfactant‐enhanced solubilisation was studied both in batch and continuous flow arrangements to determine if there were advantages to using a combination of non‐ionic (Tween and Brij) and anionic surfactants. It was observed that the presence of the anionic surfactant sodium dodecyl benzene sulphonate improved the DDT removal efficiency, but had a potentially negative effect on flow rates in column leaching experiments at concentrations over 0.1%. The potential for re‐use of the surfactant mixture was studied and demonstrated by removing DDT and its metabolites from the surfactant solution using activated carbon. © 2011 Canadian Society for Chemical Engineering