水中溶解性有机质与重金属耦合作用表征技术研究
Journal: Ecological Environment and Protection DOI: 10.12238/eep.v8i3.2596
Abstract
水中重金属与溶解性有机质(DOM)之间的耦合反应对于理解重金属的迁移、转化和生态风险具有重要意义。DOM的组成、分子量和来源等因素显著影响其与重金属的结合能力,此外,外部环境因素如温度、pH值、磷酸盐等,也会影响DOM与重金属的反应过程。本文系统梳理并介绍了近年来在DOM-重金属耦合研究中广泛应用的表征技术,例如紫外光谱技术,三维荧光光谱技术,荧光淬灭法,红外光谱技术,稳定同位素技术等。最后,展望了未来研究趋势,提出多技术融合、原位检测、人工智能辅助分析等新方向,以期为水体中重金属污染的识别与控制提供理论基础和技术支持。
Keywords
溶解性有机质；重金属；光谱技术
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[3] Liu M,Han X,Guo L,et al.Effects of Cu(II)-DOM complexat ion on DOM degradation: Insights from spectroscopic evidence [J].Science of The Total Environment,2024,921:170928.
[4] Li D,Wang Z,Yang Y,et al.Characterization of copper bin ding to different molecular weight fractions of dissolved org anic matter in surface water[J].Journal of Environmental Mana gement,2023,341:118067.
[5] 言宗骋,高红杰.蘑菇湖沉积物间隙水溶解性有机质紫外可见光谱研究[J].环境工程技术学报,2019,9(6):685-691.
[6] LI P H, HUR J. Utilization of UV-Vis spectroscopy and related data analyses for dissolved organic matter (DOM) studies: areview[J].Critical Reviews in Environmental Science and Technology,2017,47(3):131-154.
[7] CHEN W,QIAN C,ZHOU K G,et al.Molecular spectroscopic characterization of membrane fouling: a critical review[J].Chem,2018,4(7):1492-1509.
[8] HUGUET A,VACHER L, RELEXANS S,et al. Properties of fluo rescent dissolved organic matter in the Gironde Estuary[J]. Organic Geochemistry,2009,40(6):706-719.
[9] 于会彬,宋永会,杨楠,等.三维荧光与神经网络研究城市河流沉积物孔隙水有机物组成与结构特征[J].光谱学与光谱分析,2015,35(4):934-939.
[10] 孙伟,夏瑞,王晓,等.达里诺尔湖溶解性有机质荧光特征与人工神经网络非线性响应研究[J]. 环境科学研究,2020,33(11):2458-2466.
[11] Nguyen T N,Takaoka M, Kusakabe T, et al. Assessing the complexation of dissolved organic matter with heavy metals (Cu2+, Pb2+) in leachate from an old Japanese landfill site using fluorescence quenching[J]. Environmental Science and Pollution Research,2024:1-14.
[12] Zhang Y, Zhang Y, Yu T. Quantitative characterization of Cu binding potential of dissolved organic matter (DOM) in sediment from Taihu Lake using multiple techniques[J]. Frontiers of Environmental Science & Engineering,2014,8:666-674.
[13] 于振亚,杜晓丽,高参,等.道路雨水径流溶解性有机物与重金属结合作用分析[J].环境科学学报,2018,38(8):3004-3011.
[14] Zhu, Weiqin, et al. "Heavy metal and δ 13 C value vari ations and characterization of dissolved organic matter (DOM) during vermicomposting of pig manure amended with 13 Clabeled rice straw." Environmental Science and Pollution Res earch 25(2018):20169-20178.
[15] HUANG Y, FU C, LI Z, et al. Effect of dissolved organic matters on adsorption and desorption behavior of heavy met als in a water-level-fluctuation zone of the Three Gorges Reservoir,China[J].Ecotoxicology and Environmental Safety,2019,185:109695.
[16] ZHANG J,HUA P, KREBS P.The influences of dissolved or ganic matter and surfactant on the desorption of Cu and Znfr om road-deposited sediment[J].Chemosphere,2016,150:63-70.
[17] 胡斌,王沛芳,张楠楠,等.基于光谱特征的pH对溶解态有机质与铜相互作用的影响研究[J].光谱学与光谱分析,2023,43(05):1628-1635.
[18] 王家元.城市径流雨水溶解性有机质特征及其与典型重金属的作用机制研究[D].北京:北京建筑大学,2017.
[19] Bao,Tianli,et al."Investigation on the effects of sedi ment resuspension on the binding of colloidal organic matter to copper using fluorescence techniques." Chemosphere236 (2019):124312.
[20] Ding X,Xu W,Li Z,et al.Phosphate hinders the complexa tion of dissolved organic matter with copper in lake waters [J].Environmental Pollution,2021,276:116739.
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