淮河上游某矿区退水溶解性有机物入河演变特征解析  

Analysis of the Evolution Characteristics of Dissolved Organic Matter in the Discharged Water of a Mining Area in the Upper Huaihe River

作　　者：魏怀斌 鲁楠楠 刘静[3] 潘红卫 WEI Huai-bin;LU Nan-nan;LIU Jing;PAN Hong-wei(School of Management and Economics,North China University of Water Resources and Electric Power,Zhengzhou 450046,China;School of Water Conservancy,North China University of Water Resources and Electric Power,Zhengzhou 450046,China;School of Water Resources,North China University of Water Resources and Electric Power,Zhengzhou 450046,China)

机构地区：[1]华北水利水电大学管理与经济学院,河南郑州450046 [2]华北水利水电大学水利学院,河南郑州450046 [3]华北水利水电大学水资源学院,河南郑州450046

出　　处：《光谱学与光谱分析》2025年第3期885-893,共9页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(51979107,52209018,51809095)资助。

摘　　要：利用三维荧光光谱(EEMs)结合平行因子分析(PARAFAC),研究了矿区水体中溶解有机物(DOM)的荧光组分特征,并对其种类、分布和来源进行了解析。结果表明,研究区水体和底泥各具有5个天然组分,其中水体C1[275/325(335)nm]、C2(290/345 nm)组分为类蛋白物质(类色氨酸),C3(320/405 nm)、C5(285/505 nm)组分为可见区类腐殖酸,C4(265/430 nm)组分为紫外区类腐殖酸;底泥C1[270(300)/340 nm]、C2(290/340 nm)、C3(300/360 nm)、C4[285/320(360)nm]组分为类蛋白物质(类色氨酸),C5(270/435 nm)组分为紫外区类腐殖酸。矿区水体和底泥中类蛋白物质的相对含量分别为302.23和1976.83,腐殖酸类分别为96.72和41.11,水样和底泥溶解性有机物均以类蛋白质组分为主。由于沉积物是类蛋白质荧光的主要来源之一,底泥中的荧光物质含量远大于水样中的荧光物质含量。水体中荧光物质含量的空间分布为矿区排污出水口及双洎河上较高,沿河段及滹沱沟入双洎河处较低,而底泥的荧光物质含量在双洎河上含量较高,矿区排污出水口和沿河段及滹沱沟入双洎河处与水样的含量分布相反。水样和底泥中的三个荧光特征参数(FI、BIX、HIX)指明该水体中DOM具有强自生源特性和弱腐殖化特征,各组分与荧光特征参数的相关性分析进一步表明该区域底泥中的类蛋白质物质主要产生于自生源而非外源。该研究有助于更好地理解矿区排放废水中的有机物成分,为矿区污水排放治理提供参考依据。The fluorescence components of dissolved organic matter(DOM)in the water bodies of a mining area were studied using three-dimensional fluorescence spectroscopy(EEMs)combined with parallel factor analysis(PARAFAC),and their types,distribution,and sources were analyzed and discussed.The results showed 5 natural components in the water samples and sediments of the study area.Components C1(275/325(335)nm)and C2(290/345 nm)in the water samples were identified as protein-like substances(tryptophan-like).In comparison,components C3(320/405 nm)and C5(285/505 nm)were identified as visible region humic acids,and component C4(265/430 nm)was identified as ultraviolet region humic acid.Components C1(270(300)/340 nm),C2(290/340 nm),C3(300/360 nm),C4(285/320(360)nm),and C5(270/435 nm)in the sediments were identified as protein-like substances(tryptophan-like),and component C5 was identified as ultraviolet region humic acid.The contents of protein-like substances in the water samples and sediments of the mining area were 302.23 and 1976.83,respectively,and the contents of humic acids were 96.72 and 41.11,respectively,indicating that both the water samples and sediments were mainly composed of protein-like substances.Additionally,since sediments are one of the main sources of protein-like fluorescence,the content of fluorescent substances in the sediments was much higher than that in the water samples.The spatial distribution of fluorescent substances in the water samples was higher at the mining wastewater outlet and the Shuangji River and lower along the river and at the Hutuo Ditch and the Shuangji River confluence.On the other hand,the spatial distribution of fluorescent substances in the sediments was higher at the Shuangji River and lower at the mining wastewater outlet along the river and at the confluence of the Hutuo Ditch and the Shuangji River,which was the opposite of the distribution in the water samples.The fluorescence index(FI),biological index(BIX),and humification index(HIX)in the water samples and sediments ind

关 键 词：溶解性有机质 平行因子分析 矿区 地表水 底泥 沿程变化 

分 类 号：X52[环境科学与工程—环境工程]