淮北煤矿沉陷区溶解性有机物构成特征研究  

Composition Characteristics of Dissolved Organic Matter in Huaibei Coal Ming Subsidence Areas

作　　者：陆旭 陈振生 Lu Xu;Chen Zhensheng(Huaibei Mining Holdings Co.,Ltd.,Huaibei 235000,Anhui,China)

机构地区：[1]淮北矿业股份有限公司,安徽淮北235000

出　　处：《绿色科技》2024年第22期173-178,共6页Journal of Green Science and Technology

基　　金：淮北矿业股份有限公司2024年度科学技术项目(编号:淮矿技合字(2024)第33号)。

摘　　要：为探究采煤沉陷区水体和周围土壤溶解性有机物(DOM)特征。基于三维荧光光谱(EEMs)、平行因子模型(PARAFAC)、自组织神经网络(SOM)研究了安徽省许疃煤矿采煤沉陷区水体与土壤DOM的含量、组成和官能团特征。结果表明:水样C_(1)、C_(2)、C_(3)荧光强度均值分别为(0.31±0.04)(0.23±0.03)(0.29±0.03)R.U.;土样C_(1)、C_(2)、C_(3)荧光强度均值分别为(0.68±0.13)(0.63±0.11)(0.43±0.13)R.U.。水体DOM组分主要为UV类腐殖质、类胡敏酸和类色氨酸,而土壤中DOM组分为UVC类富里酸、类酪氨酸和类色氨酸。水体和土壤的荧光指数(FI)分别为(1.94±0.09)(1.92±0.26)。矿区DOM主要源于内源活动,腐殖化程度低。沉陷区环境稳定,有利于内源性有机质的生成与积累。This paper explores the characteristics of dissolved organic matter(DOM)in water and surrounding soil in coal mining subsidence areas.Based on three-dimensional fluorescence spectroscopy(EEMs),parallel factor model(PARAFAC)and self-organizing maps(SOM),the content,composition and functional characteristics of DOM in water and soil in the coal mining subsidence area of Xutuan Coal mine in Anhui Province,China were studied.The results showed that the mean fluorescence intensity of C_(1),C_(2)and C_(3)were 0.31±0.04,0.23±0.03 and 0.29±0.03 R.U,respectively.The mean fluorescence intensity of C_(1),C_(2)and C_(3)were 0.68±0.13,0.63±0.11 and 0.43±0.13 R.U.respectively.The main components of DOM in water are UV humic acid,humic acid and tryptophan,while DOM in soil is divided into UVC fulvic acid,tyrosine and tryptophan.The fluorescence index(FI)of water and soil was 1.94±0.09 and 1.92±0.26,respectively.DOM in mining area is mainly derived from endogenous activities;the humification degree is low,and the environment in subsidence area is relatively stable.

关 键 词：采煤沉陷区 三维荧光光谱(EEMs) 紫外—可见吸收光谱(UV-Vis) 平行因子模型(PARAFAC) 自主织神经网络(SOM) 

分 类 号：TD327[矿业工程—矿井建设]