基于水环境模型和数据库的潮汐河网突发水污染事件溯源
发布时间：2019-05-30 02:07
【摘要】：为快速准确地实现潮汐河网突发性水污染的溯源,提出了基于水环境模型和数据库的溯源方法。以西江、北江佛山段为案例,基于EFDC(environmental fluid dynamics code)和WASP(water quality analysis simulation program)模型建立了研究区域的水动力模型、常规污染物水质模型以及有毒污染物水质模型;识别和筛选了研究区域的水环境风险源,并以此建立有毒污染物溯源数据库和常规污染物溯源数据库;最后以研究案例区内禅城沙口站监测到Cr6+超标为假设情景案例,通过数据库查询,使用反向计算确定3种可能的污染源排放情况下污染物初始排放量,再通过试错法,应用模型正向计算得到最终可能的污染源位置及对应的排放量,快速准确地完成污染物溯源。
[Abstract]:In order to trace the source of sudden water pollution in tidal river network quickly and accurately, a traceability method based on water environment model and database is proposed. Taking the Foshan section of Xijiang River and Beijiang River as an example, the hydrodynamic model, conventional pollutant water quality model and toxic pollutant water quality model of the study area are established based on EFDC (environmental fluid dynamics code) and WASP (water quality analysis simulation program) model. The water environmental risk sources in the study area were identified and screened, and the traceability database of toxic pollutants and conventional pollutants was established. Finally, based on the hypothetical case of Cr6 exceeding the standard monitored by Shakou Station in Zancheng City in the case area of the study area, the initial discharge of pollutants under the condition of three possible pollution sources was determined by reverse calculation through database query, and then the initial discharge of pollutants was determined by trial and error method. The final possible pollution source location and corresponding emission are obtained by using the model forward calculation, and the traceability of pollutants is completed quickly and accurately.
【作者单位】： 清华大学环境学院;上海市城市规划设计研究院;
【基金】：产业密集型城镇水环境综合整治技术研究与示范项目(2011ZX07301-003) 佛山市水环境重金属污染监控和应急管理技术研究二期项目(20132101541)
【分类号】：X522
本文编号：2488424
[Abstract]:In order to trace the source of sudden water pollution in tidal river network quickly and accurately, a traceability method based on water environment model and database is proposed. Taking the Foshan section of Xijiang River and Beijiang River as an example, the hydrodynamic model, conventional pollutant water quality model and toxic pollutant water quality model of the study area are established based on EFDC (environmental fluid dynamics code) and WASP (water quality analysis simulation program) model. The water environmental risk sources in the study area were identified and screened, and the traceability database of toxic pollutants and conventional pollutants was established. Finally, based on the hypothetical case of Cr6 exceeding the standard monitored by Shakou Station in Zancheng City in the case area of the study area, the initial discharge of pollutants under the condition of three possible pollution sources was determined by reverse calculation through database query, and then the initial discharge of pollutants was determined by trial and error method. The final possible pollution source location and corresponding emission are obtained by using the model forward calculation, and the traceability of pollutants is completed quickly and accurately.
【作者单位】： 清华大学环境学院;上海市城市规划设计研究院;
【基金】：产业密集型城镇水环境综合整治技术研究与示范项目(2011ZX07301-003) 佛山市水环境重金属污染监控和应急管理技术研究二期项目(20132101541)
【分类号】：X522
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，本文编号：2488424
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