Title
Modeling the reversible and resistant components of munition constituent adsorption and desorption on soils
DOI
https://doi.org/10.1007/s11270-015-2486-3
Document Type
Article
Publication Date
6-22-2015
Publication Title
Water, Air, and Soil Pollution
Abstract
The reversible and resistant components of adsorption and desorption of munition constituents (MCs) on soils was studied to determine the environmental fate of these contaminants. The long-term desorption of MCs has applicability in formulating accurate risk assessments for operational military ranges. Batch experiments near 1:1 (w/v) soil-to-solution ratios reflecting field conditions using solutions containing mixtures of HMX, RDX, and nitroglycerine (NG) were conducted. The three soils used varied from 0.04 to 13.3 % organic matter. The experiment involved one adsorption step followed by four consecutive desorption steps. Adsorption times were 2, 5, 10, and 30 days. For each adsorption time, desorption times were carried out for 1, 12, 24 and 72 h and 30 days. The reversible/resistant component model was applied to the data. The model predicted the desorption concentrations of the MCs in the soil with root mean square errors of approximately 0.05 to 0.2 μg g soil . The extent of desorption hysteresis is not changed by the length of desorption time, irrespective of the initial adsorption time. -1
Volume
226
Issue
7
ISSN
00496979
Recommended Citation
Gonzalez, Rosalina; Michelson, Kyle; Di Toro, Dominic M.; and Allen, Herbert E., "Modeling the reversible and resistant components of munition constituent adsorption and desorption on soils" (2015). Scopus Unisalle. 418.
https://ciencia.lasalle.edu.co/scopus_unisalle/418
Identifier
SCOPUS_ID:84934961436