Oxidation of explosives by Fenton and photo-Fenton processes
| Autor: | Ming-Chun Lu, Jong-Nan Chen, Ming-Jer Liou |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Reaction mechanism
Environmental Engineering Ultraviolet Rays Iron Kinetics Explosions Environmental pollution Photochemistry Hazardous Substances chemistry.chemical_compound Hydrogen peroxide Waste Management and Disposal Chemical decomposition Water Science and Technology Civil and Structural Engineering Waste management Ecological Modeling Hydrogen Peroxide Oxidants Tetryl Pollution chemistry Degradation (geology) Hydroxyl radical Environmental Pollution Oxidation-Reduction |
| Zdroj: | Water Research. 37:3172-3179 |
| ISSN: | 0043-1354 |
| DOI: | 10.1016/s0043-1354(03)00158-1 |
| Popis: | In this study, the Fenton process was used to explore the possibility of treating explosives, namely 2,4,6-trinitrophenol (PA), ammonium picronitrate (AP), 2,4-dinitrotoluene (DNT), methyl-2,4,6-trinitrophenylnitramine (Tetryl) and 2,4,6-Trinitrotoluene (TNT), hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX). The photo-Fenton process was also conducted to compare its oxidation efficiency with the Fenton process. The inhibition of hydroxyl radical and theory of crystal field stabilization energy were introduced in this study. Results show that oxidation efficiencies in Fenton system are in the following sequence: DNT > PA > AP > TNT > Tetryl > RDX > HMX. The degradation of the explosives obeys a pseudo-first-order behavior, and possible decomposing mechanisms are also discussed. For all explosives, the oxidation rates significantly increased with increasing the concentration of Fe(II), as well as illumination with UV light. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect