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首页> 外文期刊>Ecological indicators >Spatial-temporal variation of permanganate index under accident conditions during different water periods in Zigui drinking water source area, Three Gorges reservoir area, China
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Spatial-temporal variation of permanganate index under accident conditions during different water periods in Zigui drinking water source area, Three Gorges reservoir area, China

机译：三峡库区Zi归饮用水源地不同水期事故条件下高锰酸盐指数的时空变化

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摘要

With the rapid development of the economy, the risk of pollution accidents occurring in urban drinking water source areas has increased, which has brought important impacts on people's living and social economy. From the emergency treatment of accidents such as chemical spills and explosions from all over the world. Some treatments have limited effectiveness due to lack of understanding for pollution scope and its development trend, leading to pollutant diffusion and more serious impacts. Therefore, it is meaningful to carry out researches on selecting a suitable model to simulate the time variations and spatial distributions of pollutant concentrations in different water periods under accident conditions. This study chose a method that can simulate the temporal and spatial variations of pollutant concentrations under accidents conditions in the drinking water source area. And parameter calibration and model validation were carried out. The method was applied to the Zigui drinking water source area. It is located in the Fenghuangshan area of Zigui County, Yichang City and it supplies water to Zigui County and has a water supply population of 40,000. In this paper, the permanganate index was selected as the characteristic index, The change of the permanganate index over time in the water intake of the drinking water source area, the change of the maximum permanganate index of the drinking water source area over time, and the temporal and spatial variation of the permanganate index of the whole drinking water source area were analyzed, and the change of permanganate index in different water periods of the drinking water source area were compared. Under the assumption of accident conditions, the permanganate index of the drinking water source area intake of drinking water reached the standard after 1.93 h of dry period, reached the standard after 1.74 h of falling period, reached the standard after 1.73 h of flood period and reached the standard after 1.72 h of impounding period. The permanganate index of the whole drinking water source area reached the standard after 4.39 h of dry period, 3.98 h of falling period, 2.48 h of flood period, and 2.47 h of impounding period. This new model can predict the spatial-temporal variation of pollutants and it can provide a reference and a tool for relevant researchers and managers to provide technical support for water resource management.
机译：随着经济的快速发展，城市饮用水源区发生污染事故的风险增加，对人们的生活和社会经济产生了重要影响。来自世界各地的化学品泄漏和爆炸等事故的紧急处理。由于缺乏对污染范围及其发展趋势的了解，某些处理方法的效果有限，导致污染物扩散和更严重的影响。因此，开展研究以选择合适的模型来模拟事故条件下不同水期污染物浓度的时间变化和空间分布具有重要意义。本研究选择了一种可以模拟饮用水源区域事故条件下污染物浓度的时空变化的方法。并进行了参数校准和模型验证。该方法已应用于Zi归饮用水源区。它位于宜昌市Zi归县凤凰山地区，向Zi归县供水，供水人口达40,000。本文选择高锰酸盐指数作为特征指标，即饮用水源区取水口中高锰酸盐指数随时间的变化，饮用水源区最大高锰酸盐指数随时间的变化，以及分析了整个饮用水源区高锰酸盐指数的时空变化，比较了饮用水源区不同水期高锰酸盐指数的变化。在事故条件下，饮用水源区饮水高锰酸盐指数在干旱期1.93h后达到标准，在下降期1.74h后达到标准，在洪水期1.73h后达到标准。滞留期1.72小时后达到标准。干燥期4.39 h，下降期3.98 h，洪水期2.48 h和蓄水期2.47 h后，整个饮用水水源区的高锰酸盐指数均达到标准。该新模型可以预测污染物的时空变化，可以为相关研究人员和管理人员为水资源管理提供技术支持提供参考和工具。

著录项

  • 来源
    《Ecological indicators》 |2019年第6期|647-660|共14页
  • 作者

    Ding Xiaowen; Han Xu; Kang Bo; Zhai Aifeng;

  • 作者单位

    North China Elect Power Univ, Coll Environm Sci & Engn, MOE Key Lab Resources & Environm Syst Optimizat, Beijing 102206, Peoples R China|Univ Regina, Inst Energy Environm & Sustainable Communities, Regina, SK S4S 7H9, Canada;

    North China Elect Power Univ, Coll Environm Sci & Engn, MOE Key Lab Resources & Environm Syst Optimizat, Beijing 102206, Peoples R China;

    North China Elect Power Univ, Coll Environm Sci & Engn, MOE Key Lab Resources & Environm Syst Optimizat, Beijing 102206, Peoples R China;

    North China Elect Power Univ, Coll Environm Sci & Engn, MOE Key Lab Resources & Environm Syst Optimizat, Beijing 102206, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Water quality model; Water periods; Change trend; Water pollution accident; Drinking water source area;

    机译：水质模型;水期;变化趋势;水污染事故;饮用水源地;

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