某酸性矿山排水中溶解性有机物的特征分析

张思宇; 岳正波; 佘智祥; 潘鑫; 邵锐; 史权; 何晨; 李运运; 王进

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中国环境科学 ›› 2020, Vol. 40 ›› Issue (8) : 3401-3407.

水污染与控制

某酸性矿山排水中溶解性有机物的特征分析

张思宇^1,3, 岳正波^1,3, 佘智祥^1,3, 潘鑫^1,3, 邵锐^1,3, 史权², 何晨², 李运运², 王进^1,3

作者信息 +

Characteristics analysis of dissolved organic matter in the acid mine drainage

ZHANG Si-yu^1,3, YUE Zheng-bo^1,3, SHE Zhi-xiang^1,3, PAN Xin^1,3, SHAO Rui^1,3, SHI Quan², HE Chen², LI Yun-yun², WANG Jin^1,3

Author information +

文章历史 +

摘要

采集安徽某酸性矿山排水（AMD）水库不同离岸距离的表水层水样，结合傅立叶变换离子回旋共振质谱（FT-ICR MS）与三维荧光光谱（EEMs）技术对水样中溶解性有机物（DOM）来源和组分特征进行分析.三维荧光结果表明，样品中内源性色氨酸类荧光峰峰强与离岸距离正相关，且基于三维荧光特征指数（FI，HIX，BIX）分析判断DOM主要来自于内源.FT-ICR MS在分子层面进一步表明，内源性组分（脂类，脂肪族/蛋白类，糖类）在近岸点样品DOM所占比重相对较低（66%）.AMD中DOM的主要成分为CHO（40%~50%）、CHON（25%~30%）、CHOS （22%~36%）等化合物.DOM包含有高比例的CHOS化合物主要与AMD水体高浓度硫酸盐有关.

Abstract

Surface water samples with different offshore distances from AMD in Anhui province were collected, and the sources and component characteristics of DOM in water samples were studied with Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS) and Excitation-Emission Matrix spectroscopy (EEMs). The EEMs results showed that the fluorescence peak intensity of autochthonous tryptophan in the DOM sample correlated positively with the distance. The EEMs characteristic indexes values of FI, HIX and BIX indicated that DOM was mainly from internal sources. FT-ICR MS analysis results further indicated endogenous components (lipids, aliphatic/proteins, carbohydrates) in the DOM sample near the shoreside had a relatively low proportion of 66% at the molecular level. The main components were composed of CHO, CHON and CHOS containing substances. The high fraction of CHOS compounds was mainly related to the high sulfate concentration in AMD.

导出引用

张思宇, 岳正波, 佘智祥, 潘鑫, 邵锐, 史权, 何晨, 李运运, 王进. 某酸性矿山排水中溶解性有机物的特征分析[J]. 中国环境科学. 2020, 40(8): 3401-3407

ZHANG Si-yu, YUE Zheng-bo, SHE Zhi-xiang, PAN Xin, SHAO Rui, SHI Quan, HE Chen, LI Yun-yun, WANG Jin. Characteristics analysis of dissolved organic matter in the acid mine drainage[J]. China Environmental Science. 2020, 40(8): 3401-3407

中图分类号： X524

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