PMID: 15224738Jul 1, 2004Paper

Binding of 2,4,6-trinitrotoluene, aniline, and nitrobenzene to dissolved and particulate soil organic matter

Environmental Science & Technology
Johan ErikssonUlf Skyllberg

Abstract

The distribution of TNT* (the sum of TNT and its degradation products), aniline, and nitrobenzene between particulate organic matter (POM), dissolved soil organic matter (DOM), and free compound was studied in controlled kinetic (with and without irradiation) and equilibrium experiments with mixtures of POM and DOM reflecting natural situations in organic rich soils. The binding of TNT* to POM was fast, independent of irradiation, and adsorption isotherms had a great linear contribution (as determined by a mixed model), indicative of a hydrophobic partitioning mechanism. The binding of TNT* to DOM was slower, strongly enhanced under nonirradiated conditions, and adsorption isotherms were highly nonlinear, indicative of a specific interaction between TNT derivatives and functional groups of DOM. Nitrobenzene was associated to both POM and DOM via hydrophobic partitioning, whereas aniline binding was dominated by specific binding to POM and DOM functional groups. On the basis of nitrobenzene and TNT* adsorption parameters determined by a mixed Langmuir + linear model, POM had 2-3 times greater density of hydrophobic moieties as compared to DOM. This difference was reflected by a greater (O + N)/C atomic ratio for DOM. The sum of ...Continue Reading

References

Jan 16, 2002·Journal of Environmental Quality·J Eriksson, U Skyllberg
Nov 16, 2002·Environmental Science & Technology·Mikhail Borisover, Ellen R Graber
Aug 16, 2003·Analytical Chemistry·Camille Keeler, Gary E Maciel

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Citations

Sep 20, 2005·Archives of Environmental Contamination and Toxicology·Guilherme R Lotufo, J Daniel Farrar
Apr 30, 2013·Chemosphere·Richard W SmithChristopher Cooper
Feb 18, 2016·The Science of the Total Environment·Wei HeJin Hur
Mar 2, 2010·Ecotoxicology and Environmental Safety·Guilherme R LotufoJohn W Fleeger
Jan 15, 2009·Journal of Environmental Quality·Richard MartelGuy Ampleman
Dec 17, 2018·Environmental Science and Pollution Research International·Lü WeiweiGao Guang
Oct 31, 2009·Journal of Environmental Quality·Thomas A DouglasCharles A Weiss
Apr 14, 2017·The Journal of Physical Chemistry. a·Jomana Al-Nu'airatBogdan Z Dlugogorski

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