Roles of different molecular weights of dissolved organic matter in arsenic enrichment in groundwater: Evidences from ultrafiltration and EEM-PARAFAC

• Published in: Applied geochemistry Vol. 104; pp. 124 - 134
• Main Authors: Li, Xiaomeng, Guo, Huaming, Zheng, Hao, Xiu, Wei, He, Wei, Ding, Qian
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.05.2019
• Subjects: arsenic; biodegradation; Biogeochemical processes; colloids; dissolved organic matter; Enrichment; Excitation-emission matrix spectroscopy; factor analysis; fluorescence emission spectroscopy; groundwater; iron; iron oxides; molecular weight; Organic carbon; Parallel factor analysis (PARAFAC); spectral analysis; surface water; Ultrafiltration; Enrichment; Biogeochemical processes; Organic carbon; Excitation-emission matrix spectroscopy; Ultrafiltration; Parallel factor analysis (PARAFAC)
• ISSN: 0883-2927; 1872-9134
• DOI: 10.1016/j.apgeochem.2019.03.024

Molecular weight (MW) is a fundamental property of dissolved organic matter (DOM) that may affect the interaction between DOM and metals/metalloids. However, understanding of MW property of groundwater DOM and its roles in arsenic (As) mobilization needs to be improved. In this study, two surface wa...