| Autor: |
Prasad GK; PD Division, Defense R&D Establishment, Jhansi Road, 474002 Gwalior, Madhya Pradesh, India., Mahato TH, Yadav SS, Singh B |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of hazardous materials [J Hazard Mater] 2007 May 08; Vol. 143 (1-2), pp. 150-5. Date of Electronic Publication: 2006 Sep 07. |
| DOI: |
10.1016/j.jhazmat.2006.09.003 |
| Abstrakt: |
Breakthrough behaviour of sulphur mustard, the deadliest of persistent chemical warfare agents, on carbon systems such as NaOH/CrO(3)/C, NaOH/CrO(3)/EDA/C and RuCl(3)/C has been studied and the data were compared with that of active carbon. Effects of bed lengths of carbons on breakthrough time have also been correlated. Thereafter, the effects of flow rate of air-sulphur mustard mixture, concentration and temperature on the kinetic parameters such as rate constant (k(v)) and kinetic saturation capacity (W(e)) were analyzed and interpreted by means of modified Wheeler equation. Rate constant was found to be increasing while W(e) was found to be invariable with the increase in air flow rate. Both k(v) and W(e) decreased with the increase of temperature, however, no significant effect on W(e) and k(v) was observed due to concentration change (0.3-0.6 mg/l). The values of kinetic saturation capacity were used to predict the service lives/breakthrough times of carbon beds (when used in filtration systems). |
| Databáze: |
MEDLINE |
| Externí odkaz: |
|
Full Text from ScienceDirect