Three-dimensional excitation emission matrix fluorescence spectroscopic characterization of dissolved organic matter in coal mine water
Abstract：In Yungaishan No. 1 Mine, three-dimensional excitation emission matrix fluorescence spectroscopy （3DEEM） was applied to characterize the fluorescence properties of dissolved organic matters in coal mine water. The results show that the DOC concentrations have no significant difference（2. 277 -4. 104 mg/L） in all mine water,and the value of UV254 in rock crosscut mine water is 3.0 - 4.3 times higher than that in other mine water samples. The values of SUVA are less than 3 L/（ m · mg） in all mine water, which shows that the organic matters are endogenous organic matters and lack of terrestrial organic matters. The fluorescence intensities are not high in all mine water, and have big difference. Peak A and Peak F appeare in roof crevice water and rock crosscut mine water respectively, and Peak B, Peak C and Peak D appeare in all mine water, and Peak E appeares in rock crosscut and track roadway, and there had wastewater discharge by human for coal mining. There are high linear relationship between tryptophan-likeor- ganie matter fluorescence intensity and the concentration of DOC （R2 = 0. 999 1 ）. There is negative correlation between tyrosine-like organic matter fluorescence intensity and the concentration of DOC （R2 = 0. 527 9 ）. The ratio of fluores- cence intensities between protein-like and humic-like shows that the degree of pollution is the lightest in roof crevice water, and the degree of pollution is the most serious in rock crosscut mine water.
Keywords：coal mine waterdissolved organic matter3DEEM (three-dimensional excitation emission matrix)DOC concentration
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 1396-1400 )