Data: Leaching Potential of Heavy Metals from Road-deposited Sediment and Sorptive Media during Dry Periods in Storm Water Quality Improvement Devices

This dataset contains results of experiments studying the leaching potential of heavy metals from road-deposited sediment (RDS) and three sorptive media (granular activated lignite, granular ferric hydroxide and zeolite) used in storm water quality improvement devices (SQIDs) to retain heavy metals from road runoff. The contaminated RDS and pre-stressed sorptive media were exposed in quiescent batch leaching tests to three different synthetic road runoffs (SRR, SRR+NaCl, SRR+DOM), thereby the effects of de-icing salts and dissolved organic matter were assessed. Samples were withdrawn after (4), 24, 48 and 168 h. The exerted methods are described comprehensively in the associated publication. This dataset contains following items: 1. Metal contents of road-deposited sediment and three pre-stressed sorptive media used in SQIDs 2. Leachates of RDS: pH, electrical conductivity (EC), UVA254, SUVA254, DOC, dissolved Ca, Cd, Cr, Cu, Fe, Mg, Na, Ni, Pb and Zn, and Cl 3. Leachates of three pre-stressed sorptive media: pH, EC, UVA254, DOC, dissolved Cu, Zn, Fe, and Cl

本数据集包含针对道路沉积沉积物（road-deposited sediment, RDS）以及三种用于雨水水质改善装置（storm water quality improvement devices, SQIDs）以截留道路径流中重金属的吸附介质（颗粒活化褐煤、颗粒氢氧化铁、沸石）的重金属溶出潜力的实验研究结果。将受污染的道路沉积沉积物与预负载吸附介质分别置于三种不同的合成道路径流（synthetic road runoffs, SRR、SRR+NaCl、SRR+DOM）中开展静态批量溶出实验，以此评估除冰盐与溶解性有机物对重金属溶出的影响。分别在4h、24h、48h及168h时采集浸出液样本。实验具体方法详见相关已发表文献。本数据集包含以下内容：1. 道路沉积沉积物及雨水水质改善装置中所用三种预负载吸附介质的金属元素含量；2. 道路沉积沉积物浸出液的检测指标：pH值、电导率（electrical conductivity, EC）、UVA254、SUVA254、溶解性有机碳（dissolved organic carbon, DOC）、溶解态钙（Ca）、镉（Cd）、铬（Cr）、铜（Cu）、铁（Fe）、镁（Mg）、钠（Na）、镍（Ni）、铅（Pb）、锌（Zn）及氯离子（Cl）；3. 三种预负载吸附介质的浸出液检测指标：pH值、电导率、UVA254、溶解性有机碳、溶解态铜、锌、铁及氯离子。