DEGRADATION OF 2,4,6-TRINITRORESORCINE (TNR) BYPERSULFATE OXIDATION ACTIVATED WITH ZERO-VALENT IRON (ZVI)
Journal Title: Analele Universitatii din Bucuresti. Chimie - Year 2011, Vol 20, Issue 1
Abstract
2,4,6-Trinitroresorcine (TNR) with molecular formula C6H3N3O8 is one of the aromatic nitro compounds ranging slight to strong oxidizing agents causing environmental contamination. The persulfate anions activated by ZVI were used to oxidize organic compounds like trichloroethylene (TCE), methyl tertiary butyl ether (MTBE). The content of this paper was to demonstrate if the ZVI activated persulfate oxidation of TNR was a viable method. The experimental data have shown that the TNR compounds in aqueous media were oxidized by the persulfate anions activated by ZVI. The reaction participated in components such as TNR; its oxidized products were measured by Voltammetry square wave and TOC analysis. The TOC values in the samples reduced have demonstrated that the final oxidized products were CO2 + H2O + other mineral compounds. The activation of the persulfate anions by ZVI may be implemented through the reactions between S2O82– and ZVI to form sulfate free radicals (SO4–). The mineralization of TNR by the persulfate anions activated by ZVI is favor in the pH range from 3 to 5.
Authors and Affiliations
T. V. Chung, D. S. Quang, D. V. Bay, T. D. Luong
Keywords
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