| 李淼清,李贵仁,苏宏建,万建华.浅层地下水氯代烃污染物迁移转化机理研究——以天津市中部地区为例[J].矿产勘查,2025,16(3):625-633 |
| 浅层地下水氯代烃污染物迁移转化机理研究——以天津市中部地区为例 |
| Traceability of chlorinated hydrocarbon pollutants in shallow groundwater and the mechanism of transportation and transformation: A case study in the central area of Tianjin City |
| 投稿时间：2024-06-17 |
| DOI：10.20008/j.kckc.202503020 |
| 中文关键词: 地下水 氯代烃 数值模拟 污染趋势预测 |
| 英文关键词: groundwater chlorinated hydrocarbons numerical simulation pollution trend forecasting |
| 基金项目:本文受天津市地质矿产调查局项目“地下水位回升条件下地面沉降发展趋势与响应机理研究”(地矿科任【2024】-2)资助。 |
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| 中文摘要: |
| 浅层地下水是氯代烃类污染物迁移的主要媒介之一，为研究氯代烃类污染物在地下水中的迁移转化机 理，本文以天津市中部某化工厂地块第一含水层和第二含水层为研究对象，利用水文地质数据和地下水 监测数据，通过建立水流模型和溶质运移模型，分析对长时序氯代烃污染物长时序迁移转化过程进行模 拟分析。通过分析，确定该区域氯代烃污染源为聚氯乙烯车间东北侧的泄露管道，污染物在地下水作用 下不断向西南方迁移，总体呈现出污染羽范围不断扩大，污染物浓度逐渐降低的趋势；未来 10 a内，若不 采取有效措施，污染物将继续向场地西南方向迁移，对周边地下水环境造成不良影响。 |
| 英文摘要: |
| Shallow groundwater is one of the main media for the migration of chlorinated hydrocarbon pollut-ants. In order to study the migration and transformation mechanism of chlorinated hydrocarbon pollutants in ground-water, we take the first aquifer and the second aquifer of a chemical plant site in central Tianjin as the research ob-ject, and analyze the long-time sequence migration and transformation process of chlorinated hydrocarbon pollut-ants by establishing the water flow model and solute transport model using the hydrogeological data and groundwatermonitoring data. Simulation analysis. Through the analysis, it is determined that the source of chlorinated hydrocar-bon pollution in the region is the leaking pipeline on the northeast side of the PVC workshop, and the pollutants areconstantly migrating to the southwest under the action of groundwater, which shows a trend of expanding the scopeof the pollution plume and decreasing the concentration of the pollutants; in the next 10 years, if no effective mea-sures are taken, the pollutants will continue to migrate to the southwest of the site, which will have an adverse effecton the groundwater environment in the vicinity. |
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