Department of Environmental Chemistry and Technology, Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland.
Chemosphere. 2008 Nov;73(9):1465-70. doi: 10.1016/j.chemosphere.2008.07.051. Epub 2008 Sep 6.
Humic acids, extracted from sludge at the biologic-mechanical sewage treatment plant in Jastrzebie Zdroj, have been investigated by means of (1)H, (13)C and (31)P NMR spectroscopy. Sludge samples for studies were taken from the primary settling tank, the nitrification chamber, the digestion chamber and the sludge drying beds. The (1)H NMR analysis of humic acid extracted from sludge at various stages of sewage treatment confirmed the presence of the functional groups that are characteristic for humic substances, and the analysis showed changes in their relative intensities. The (13)C NMR indicated that the aromatisation of the humic acid increased during sewage treatment. Moreover, the analysis of the (31)P NMR spectra allowed us to observe the changes in the phosphorus groups of the studied humic acids.
本文采用（1）H、（13）C 和（31）P NMR 光谱法对贾斯特日采佐德罗比生物机械污水处理厂污泥中提取的腐殖酸进行了研究。研究用的污泥样品取自初沉池、硝化室、消化室和污泥干燥床。从污水处理各个阶段提取的腐殖酸的（1）H NMR 分析证实了存在对腐殖物质具有特征性的官能团，并且分析表明其相对强度发生了变化。（13）C NMR 表明，腐殖酸的芳构化程度在污水处理过程中增加。此外，（31）P NMR 谱的分析使我们能够观察到所研究的腐殖酸的磷基团的变化。
