Sorption and desorption kinetics of nitroglycerin and 2,4-dinitrotoluene in nitrocellulose and implications for residue-bound energetic materials

Water Research
Dave T F KuoHerbert E Allen

Abstract

Energetic materials (EMs) bound to propellant residues can contribute to environmental risk and public health concerns. This work investigated how nitrocellulose, a common binding material in propellants, may control the release dynamics of nitroglycerin (NG) and 2,4-dinitrotoluene (2,4-DNT) from propellant residues. Batch adsorption/desorption experiments on nitrocellulose and re-interpretation on results from past leaching studies involving propellant-bound EMs were conducted. Mechanistic modeling of adsorption/desorption kinetics based on intra-particle diffusion (IPD) predicted aqueous intrinsic diffusivities (Diw) to within a factor of 2 of expected values. Furthermore, the IPD model was able to predict effective diffusivities (Deff) during the early leaching of NG from propellant residues to within a factor of 2 over a 3-log unit range. Prediction of leaching Deff's associated with fired residues was less successful probably due to the neglect of compositional and morphological heterogeneity within the residues. Close correlations were found between the early and late Deff's of residue-bound NG and between the fast- and slow-domain rate constants for both EMs, suggesting that the late leaching kinetics of bound-EMs may be...Continue Reading

References

Feb 26, 2004·Environmental Toxicology and Chemistry·Mark E FullerRobert J Steffan
Jun 9, 2007·The Science of the Total Environment·Tobias BausingerJohannes Preuss
Jan 15, 2009·Journal of Environmental Quality·Richard MartelGuy Ampleman
Sep 5, 2009·Chemosphere·Katerina M DontsovaClint W Williford
Sep 13, 2011·Reviews on Environmental Health·Débora R S LimaFátima R Moreira
Jul 1, 1986·Environmental Science & Technology·S C Wu, P M Gschwend
Apr 4, 2013·Environmental Science & Technology·Reto S WijkerThomas B Hofstetter
Aug 5, 2014·Journal of Contaminant Hydrology·Geneviève BordeleauSonia Thiboutot
Jun 1, 2017·The Science of the Total Environment·Dave T F KuoHerbert E Allen

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Citations

Oct 28, 2019·Chemosphere·Anjali G LotheShaily Mahendra

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