Application of the photo-fenton treatment wastewater from the process of inactivetion to treat boms, mines
Keywords:
Photon-Fenton, Bombs, mines and level 5 explosives, 2,4,6-TrinitrotolueneAbstract
Wastewater discharged from the process of inactivation to treat bombs, mines and level 5 explosives has a massive color level, contains a large amount of 2,4,6-Trinitrotoluene (TNT) and other organic substances that are components of explosive materials, highly toxic and environmentally sustainable. Wastewater containing these persistent organic substances can be effectively treated with advanced oxidation process (AOPs) such as photon-Fenton. The influence of many factors such as pH values, the molar ratio of H2O2/Fe2+, UV radiation intensity, contact time, and circulation flowrate was studied and evaluated on the treatment efficiency. Experimental results on the photon-Fenton treatment model at the laboratory scale with a capacity of 18 liters of wastewater per hour determined that the optimal conditions of the treatment process are pH = 3.5, the molar ratio of H2O2/Fe2+ = 7.5, UV radiation power (254 nm) = 2 w/L.h, contact time of 60 minutes for the treatment efficiency of TNT, color, and COD parameters of 93.4%, 94.8%, and 89.8%, respectively. These results are a premise for the construction designs to treat wastewater generated during the inactivation process to to treat bombs, mines, level 5 explosives, and similar objects.
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