沱河宿州埇桥段沉积物中DOM分布情况研究  

Study on Distribution of DOM in Sediments in Suzhou Yongqiao Section of Tuohe River

作　　者：王媛媛 张立承 顾行 王佛安 马志超 慕瑞瑞 杨国兴 姜泉良 WANG Yuan-yuan;ZHANG Li-cheng;GU Xing;WANG Fo-an;MA Zhi-chao;MU Rui-rui;YANG Guo-xing;JIANG Quan-liang(School of Environmental and Surveying Engineering,Suzhou University,Anhui Suzhou 234000;Suzhou Sucheng No.1 Junior High School,Anhui Suzhou 234000,China)

机构地区：[1]宿州学院环境与测绘工程学院,安徽宿州234000 [2]宿州市宿城第一初级中学,安徽宿州234000

出　　处：《广州化工》2024年第2期215-220,共6页GuangZhou Chemical Industry

基　　金：国家自然科学基金青年基金(42307325);安徽省教育厅自然科学重点项目(2023AH052231);安徽省质量工程项目(2023zybj043);2023年宿州学院大学生创新创业训练计划项目(ZCXM23-79)。

摘　　要：本研究通过沱河流经城市水体中的有色可溶解性有机质物(CDOM)、溶解性有机质(DOM)、自生源(S_(R))、芳香性(SUVA_(254))、疏水性(SUVA_(260))及藻密度(A_(440)),得出沱河流经宿州市区后输入大量小分子DOM,CDOM浓度上升了78%;流经宿州市城区之后分子量减小,DOM分子量下降47.6%。城市输入DOM以疏水性和芳香性的DOM为主,这增加了水体污染的潜力;河流流经城市后,它的外源输入有明显的增加并且有营养盐等的输入,促进了水体当中藻类的生长,使得水体当中藻密度增加。In this study,through the colored dissolved organic matter(CDOM),dissolved organic matter(DOM),autochthonous(S_(R)),aromaticity(SUVA_(254)),hydrophobicity(SUVA_(260))and algae density(A_(440))in the urban water body of the Tuo River,it is concluded that the Tuo River enters a large number of small molecule DOM after passing through Suzhou City,and the concentration of CDOM increases by 78%.After flowing through the urban area of Suzhou,the molecular weight of DOM decreased by 47.6%.The urban input DOM is dominated by hydrophobic and aromatic DOM,which increases the potential for water pollution,after the river flows through the city,its exogenous input has increased significantly and there is input of nutrients,which promotes the growth of algae in the water body and increases the density of algae in the water body.

关 键 词：沉积物 溶解性有机质(DOM) 紫外线-可见光谱 沱河宿州埇桥段 

分 类 号：X522[环境科学与工程—环境工程]