Catalytic oxidation of TNT by activated carbon

Vasilyeva, Galina; Kreslavski, Vladimir D.; Shea, Patrick J.

doi:10.1016/s0045-6535(01)00304-6

Cited by 28 publications

(12 citation statements)

References 19 publications

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“…Most of the solvents are capable of desorbing about 40% of the adsorbed DNAN from the adsorbents. Similar results were observed for desorption of TNT from activated carbon [24,16].…”

Section: Column Adsorption Studiessupporting

confidence: 85%

Equilibrium and column adsorption studies of 2,4‐dinitroanisole (DNAN) on surface modified granular activated carbons

Boddu

Krishnaiah

Fredricksen

et al. 2009

Environmental Technology

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2,4-Dinitroanisole (DNAN) is used as a component extensively in the development of insensitive munitions. This may result in release of DNAN into the environment. Here, the results are reported of a study on the removal characteristics of DNAN through adsorption on granular activated carbon (GAC), chitosan coated granular activated carbon (CGAC), acid treated granular activated carbon (AGAC) and alkali treated granular activated carbon (BGAC) under equilibrium and column flow conditions. The effect of pH, contact time, concentration of DNAN, and presence of electrolytes on the uptake of DNAN by the adsorbents was investigated. The equilibrium data were fitted to different types of adsorption isotherms. The data were further analysed on the basis of Lagergren first-order, pseudo second-order and intraparticle diffusion kinetic models. Breakthrough curves were obtained based on column flow results. All the adsorbents were capable of removing about 99% of DNAN from aqueous media, except CGAC which adsorbed about 87% of DNAN.

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“…Most of the solvents are capable of desorbing about 40% of the adsorbed DNAN from the adsorbents. Similar results were observed for desorption of TNT from activated carbon [24,16].…”

Section: Column Adsorption Studiessupporting

confidence: 85%

Equilibrium and column adsorption studies of 2,4‐dinitroanisole (DNAN) on surface modified granular activated carbons

Boddu

Krishnaiah

Fredricksen

et al. 2009

Environmental Technology

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show abstract

“…That was only 36.7% of the whole amount of adsorbed TNT (232.4 mg), which was obtained from the material balance for adsorption (experiment E-11). Similar results were obtained for the extraction of TNT from activated carbon by acetonitrile, where up to 62% of the added TNT was strongly bound to the carbon and was not extractable with acetonitrile [20]. The low efficiency of activated carbon regeneration was confirmed, in comparison with the breakthrough curve of adsorption of regenerated activated carbon (experiment E-12).…”

Section: Desorption Of the Saturated Activated Carbonsupporting

confidence: 79%

Dynamic adsorption of trinitrotoluene on granular activated carbon

Marinović

Ristić

Dostanić³

2005

Journal of Hazardous Materials

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“…Indeed, Vasilyeva et al [17] have investigated the TNT removal by activated carbon and further degradation. The analysis confirmed the presence of 2,4,6-trinitrobenzaldehyde (TNBAld) and 2,4,6-trinitrobenzene (TNB) and provided strong evidence supporting 2,4,6-trinitrobenzyl alcohol (TNBAlc) as an intermediate of TNT degradation.…”

Section: Physical Processes For Tnt Removalmentioning

confidence: 99%