<br>三峡库区重金属铜污染事故预测及对策,Journal of Hazardous Materials

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三峡库区重金属铜污染事故预测及对策
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2023-12-13 , DOI: 10.1016/j.jhazmat.2023.133208
Zhen Liu ₁ , Jing Sang ₁ , Meixuan Zhu ₂ , Renfei Feng ₃ , Xiaowen Ding ₁

Affiliation

为了减轻饮用水源区（DWSA）的水污染危害，开发适用的模型并提出有效的解决方案至关重要。该研究开发了和上山饮用水源区（HDWSA）水动力模型，使用 FORTRAN 将地理信息系统（GIS）集成到二维水动力水质模型中。TECPLOT360 软件（可视化数值模拟软件工具）可视化了污染物的传输和扩散。该模型的相对误差小于 6%，表明其稳定性强，可靠性高。三峡库区（TGRA）的 HDWSA 被用作案例研究，重点关注铜（Cu）作为污染物。通过调节向家坝水库下游的流量，调度组 1 和调度组 2 分别增加了 4000 m3/s 和 8000 m3/s。该研究分析了污染事故和流量调度后 Cu 浓度的时空变化。事故条件下，在干涸、下降、洪水和储存期间，研究区 Cu 浓度需要 71 、 61 、 49 和 56 min 才能降至标准值（1 mg/L）以下。调度第 1 组和第 2 组在四个用水期将污染物超标持续时间缩短了 19-26 分钟和 12-18 分钟。

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Prediction and countermeasures of heavy metal copper pollution accident in the Three Gorges Reservoir Area

In order to mitigate the hazards of water pollution in drinking water source areas (DWSAs), developing applicable models and proposing effective solutions is of paramount significance. The study developed the Heshangshan Drinking Water Source Area (HDWSA) Hydrodynamic Model, integrating Geographic Information System (GIS) into a two-dimensional hydrodynamic water quality model using FORTRAN. TECPLOT360 software (Software Tools for Numerical Simulation with Visualization) visualized contamination transportation and diffusion. The model's relative error is less than 6%, indicating its strong stability and high reliability. The HDWSA in the Three Gorges Reservoir Area (TGRA) was used as a case study, focusing on copper (Cu) as a pollutant. By regulating the flow downstream from the Xiangjiaba Reservoir, Scheduling Group 1 and Scheduling Group 2 respectively increased the flow by 4000 m3/s and 8000 m3/s. The study analyzed the spatio-temporal variations of Cu concentration following pollution accident and flow scheduling. Under accident conditions, it took 71, 61, 49, and 56 min for the Cu concentration in the study area to decrease to below the standard value (1 mg/L) during dry, falling, flood, and storage periods. Scheduling Groups 1 and 2 reduced the pollutant exceedance duration by 19–26 min and 12–18 min across the four water periods.

更新日期：2023-12-13

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