DOI: 10.1016/j.watres.2017.10.052
Scopus记录号: 2-s2.0-85032358001
论文题名: Sorption and desorption kinetics of nitroglycerin and 2,4-dinitrotoluene in nitrocellulose and implications for residue-bound energetic materials
作者: Kuo D.T.F. ; Simini M. ; Allen H.E.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 128 起始页码: 138
结束页码: 147
语种: 英语
英文关键词: Adsorption
; Desorption
; Dinitrotoluene
; Energetic materials
; Kinetics
; Modeling
; Nitrocellulose
; Nitroglycerine
Scopus关键词: Adsorption
; Desorption
; Enzyme kinetics
; Explosives
; Health risks
; Kinetics
; Leaching
; Linear transformations
; Models
; Nitrates
; Propellants
; Rate constants
; Adsorption/desorption kinetics
; Dinitrotoluenes
; Effective diffusivities
; Intra-particle diffusion
; Intrinsic diffusivity
; Mechanistic modeling
; Nitroglycerine
; Sorption and desorptions
; Nitrocellulose
; 2,4 dinitrotoluene
; glyceryl trinitrate
; propellant
; pyroxylin
; 2,4-dinitrotoluene
; glyceryl trinitrate
; nitrobenzene derivative
; pyroxylin
; adsorption
; cellulose
; desorption
; dissolution
; experimental study
; leaching
; modeling
; organic nitrogen compound
; reaction kinetics
; sorption
; transformation
; adsorption kinetics
; Article
; chemical composition
; chemical structure
; comparative study
; controlled study
; desorption
; diffusion
; energy
; environmental release
; high performance liquid chromatography
; isotherm
; leaching
; prediction
; priority journal
; adsorption
; chemical model
; chemistry
; kinetics
; Adsorption
; Collodion
; Diffusion
; Dinitrobenzenes
; Kinetics
; Models, Chemical
; Nitroglycerin
英文摘要: 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 empirically assessed from the early kinetics. This work illustrates that, in addition to dissolution, retarded diffusion through nitrocellulose matrix may also limit the overall release and transformation of residue-bound EMs in the field. Implications and limitations of the current study, and the steps forward are also presented. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113130
Appears in Collections: 气候减缓与适应
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作者单位: Department of Architecture and Civil Engineering, City University of Hong Kong, Kowloon City, Hong Kong; US Army Edgewood Chemical Biological Center, Aberdeen Proving GroundMD, United States; Department of Civil and Environmental Engineering, University of Delaware, Newark, DE 19716, United States; City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
Recommended Citation:
Kuo D.T.F.,Simini M.,Allen H.E.. Sorption and desorption kinetics of nitroglycerin and 2,4-dinitrotoluene in nitrocellulose and implications for residue-bound energetic materials[J]. Water Research,2018-01-01,128