Abstract
The performance and mechanism of manganate preoxidation process for organics removal were investigated in the present paper. The results showed that manganate was a potentially powerful oxidizing agent and could make the natural organic matter (NOM) concentration of sample solution increase. The process of manganate in combination with ferrous sulphate (FeMnO) was effective for organics removal and with the highest removal rate of 89% when the FeMnO dose was 0.18 mmol/L. The fluorescence analysis showed that the fluorescence intensity values related to hydrophobic acids and model humic acid polymers were the highest and the relative position of the main peak fluorescence intensity was shifted towards lower emission wavelengths, which indicated the reduction in the degree of aromaticity of residual organic matter fraction.
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References
Leenheer J A. Comprehensive assessment of precursors, diagenesis, and reactivity to water treatment of dissolved and colloidal organic matter. Water Supply, 2004, 4: 1–9
Fearing D A, Banks J, Guyetand S, et al. Combination of ferric and MIEX for the treatment of a humic rich water. Water Res, 2004, 38: 2551–2558
Ren Z J, Ma J, Cao X C. Effect of PPC preoxidation on BAC process for removing organic matters. Chin J Environ Sci, 2006, 27: 2045–2049
Rodriguez E, Encinas A, Masa F J, et al. Influence of resorcinol chemical oxidation on the removal of resulting organic carbon by activated carbon adsorption. Chemosphere, 2008, 70: 1366–1374
Ma J, Li G B. Laboratory and full-scale plant studies of permanganate oxidation as an aid to the coagulation. Water Sci Technol, 1993, 27: 47–54
Ma J, Graham N, Li G B. Effect of permanganate preoxidation in enhancing the coagulation of surface waters-laboratory case studies. J Water Supply Res T, 1997, 46: 1–10
Ma J, Graham N. Controlling the formation of chloroform by permanganate preoxidation-destruction of precursors. J Water Supply Res T, 1996, 46: 308–315
Zhao F W, Li X, Yang Y L. Effect of pre-oxidation of potassium manganate in the process of coagulation. J Beijing Univ Tech, 2009, 35: 1527–1531
Zhao F, Li X, Yang Y. Study on the effect of manganese (II) removal with oxidation and coagulation aid of potassium manganite. 3rd Intern Conf Bioinformatics Biomedical Eng Beijing, 2009, 9: 11–13
Zhao F W, Li X, Graham N. Treatment of a model HA compound (resorcinol) by potassium manganate. Sep Purif Technol, 2012, 91: 52–58
Coble P G. Characterization of marine and terrestrial DOM in seawater. Mar Chem, 1996, 51: 325–346
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Ren, Z., Nigel, G. Effect and mechanism of manganate preoxidation for organics removal. Sci. China Technol. Sci. 57, 1160–1164 (2014). https://doi.org/10.1007/s11431-014-5515-3
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DOI: https://doi.org/10.1007/s11431-014-5515-3