Du Xiaoli, Jing Wenhui, Jiang Rongying, Chen Mengyao, Liu Dianwei
Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; Beijing Energy Conservation & Sustainable Urban and Rural Development Provincial and Ministry Co-construction Collaboration Innovation Center, Beijing 100044, China E-mail:
Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.
Water Sci Technol. 2025 Jan;91(2):160-173. doi: 10.2166/wst.2024.405. Epub 2024 Dec 24.
Road runoff underwent treatment using a filter filled with sludge from drinking water treatment plants to assess its capacity for removing dissolved organic matter (DOM). This evaluation utilized resin fractionation, gel permeation chromatography, three-dimensional excitation-emission matrix fluorescence spectroscopy, and UV-Visible spectroscopy. The filter demonstrated enhanced efficiency in removing dissolved organic carbon, achieving removal rates between 70 and 80%. It effectively targeted macromolecular DOM components present in road runoff, with hydrophobic organic compounds showing higher removal rates than hydrophilic ones. Additionally, acidic and neutral organic substances were preferentially removed over basic organic compounds. Fluorescent substances identified in road runoff DOM included fulvic acid-like, humic acids, and protein-like substances, all of which exhibited significantly reduced intensities in fluorescence peaks after filtration. Furthermore, filtration led to a decrease in the aromatization and humification of runoff DOM due to the effective removal of aromatic compounds and macromolecular structural components
使用填充有来自饮用水处理厂污泥的过滤器对道路径流进行处理，以评估其去除溶解有机物（DOM）的能力。该评估采用了树脂分级、凝胶渗透色谱、三维激发-发射矩阵荧光光谱和紫外-可见光谱。该过滤器在去除溶解有机碳方面表现出更高的效率，去除率在70%至80%之间。它有效地针对道路径流中存在的大分子DOM成分，疏水性有机化合物的去除率高于亲水性有机化合物。此外，酸性和中性有机物质比碱性有机化合物更优先被去除。在道路径流DOM中鉴定出的荧光物质包括类富里酸、腐殖酸和类蛋白质物质，所有这些物质在过滤后荧光峰强度均显著降低。此外，由于有效去除了芳香族化合物和大分子结构成分，过滤导致径流DOM的芳构化和腐殖化程度降低。
