| 段毅,李东春,周书葵.GMS在某典型化工工业园区地下水铊污染物运移研究中的应用[J].南华大学学报(自然科学版),2023,(4):9~17.[DUAN Yi,LI Dongchun,ZHOU Shukui.Application of GMS in Study of Thallium Pollutant Transport in Groundwater of a Typical Chemical Industry Park[J].Journal of University of South China(Science and Technology),2023,(4):9~17.] |
| GMS在某典型化工工业园区地下水铊污染物运移研究中的应用 |
| Application of GMS in Study of Thallium Pollutant Transport in Groundwater of a Typical Chemical Industry Park |
| 投稿时间：2023-02-24 |
| DOI： |
| 中文关键词: 化工园区 地下水污染 溶质运移 数值模拟 |
| 英文关键词:chemical industry park groundwater pollution solute transport numerical simulation |
| 基金项目:国家自然科学基金资助项目(51174117);南华大学科研启动基金项目(200XQD039);湖南省教育厅科研平台项目(15K106);湖南创新平台开放基金项目(17K078) |
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| 中文摘要: |
| 本研究以南方某市北部化工区为研究对象,基于数值模拟软件(groundwater modeling system,GMS)建立水文地质概念模型和三维溶质运移数值模型,模拟期设定为2020年1月—2029年12月,并对园区污染源污染物持续泄漏1 h、12 h和24 h后,铊污染物在地下水中的迁移过程进行模拟预测。研究结果表明,Tl污染晕质量浓度为0.004~0.024 mg/L;污染晕核心区由污染源向东平移且呈扩张趋势,等值线质量浓度为0.012~0.016 mg/L,外圈区域整体向核心区收缩,等值线浓度为0.008~0.012 mg/L;污染晕最大迁移距离分别为363、1 085、2 753 m。超标范围为0.07~1.04 km2,500 d和3 500 d后相对于最初50 d污染晕最大迁移距离分别延伸了66.5%和86.8%,污染晕核心区整体呈扩张趋势,外圈区域向核心区收缩。污染物持续泄漏1 h、12 h后和24 h后随模拟时间延长呈线性上升趋势,最高值分别为0.02、0.005、0.003 5 mg/L。 |
| 英文摘要: |
| In this study, the northern chemical industry zone of a city in the south is taken as the research object. Based on GMS, a hydrogeological conceptual model and a three-dimensional solute transport numerical model are established. The simulation prediction of the transport process of thallium pollutants in the groundwater is carried out after the pollution source pollutants in the park leak continuously for 1 hour, 12 hours and 24 hours. The results show that the concentration of Tl pollution halo is 0.004－0.024 mg/L for the simulation period of 50 d, 500 d and 3 500 d; The core area of the pollution halo moves eastward from the pollution source and shows an expanding trend. The isoline concentration is 0.012－0.016 mg/L, and the outer circle area shrinks to the core area as a whole. The isoline concentration is 0.008－0.012 mg/L; The maximum migration distance of pollution halo is 363,1 085 and 2 753 m respectively. The exceeding range is 0.07－1.04 km2. After 500 d and 3 500 d, the maximum migration distance of the pollution halo extended by 66.5% and 86.8% respectively compared with the initial 50 d. The core area of the pollution halo showed an overall expansion trend, and the outer circle area contracted to the core area. After 1 hour, 12 hours and 24 hours of continuous discharge of pollutants, there is a linear upward trend with the extension of simulation time, and the maximum is 0.02,0.005 and 0.003 5 mg/L, respectively. |
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