The Integration of Phytoremediation and Fenton Oxidation for Trinitrotoluene – contaminated Water Treatment
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Abstract
2,4,6-trinitrotoluene or TNT is one of the high explosive which is defined as the standard explosive in the military. Because of its toxicity and persistence in the environment for a long time. The study of TNT degradation was investigated. The main objective was to determine the feasibility of the integration of phytoremediation and fenton oxidation for TNT- contaminated water treatment. The 40×40×60 cubic centimeter reactors with Vetiveria zizanioides and laterite soil were prepared. The laterite soil was used as the iron sources of the fenton oxidation. The TNT degradation efficiencies at the concentration of 40 milligrams per liter were investigated during the experimental period of 12 days. The results indicated that the TNT degradation efficiency by phytoremediation with Vetiveria zizanioides was similar to fenton oxidation with laterite soil, which were 91.80 % and 91.76 % respectively. Whereas the degradation efficiency by the integration of phytoremediation and fenton oxidation was 95.08 %. The TNT degradation by laterite soil was found most effective during the first 3 days of experiments, whereas the TNT degradation by Vetiveria zizanioides was found most effective during the first 6 days of experiments.
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References
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