【摘要】：為快速準確地實現(xiàn)潮汐河網(wǎng)突發(fā)性水污染的溯源,提出了基于水環(huán)境模型和數(shù)據(jù)庫的溯源方法。以西江、北江佛山段為案例,基于EFDC(environmental fluid dynamics code)和WASP(water quality analysis simulation program)模型建立了研究區(qū)域的水動力模型、常規(guī)污染物水質(zhì)模型以及有毒污染物水質(zhì)模型;識別和篩選了研究區(qū)域的水環(huán)境風險源,并以此建立有毒污染物溯源數(shù)據(jù)庫和常規(guī)污染物溯源數(shù)據(jù)庫;最后以研究案例區(qū)內(nèi)禪城沙口站監(jiān)測到Cr6+超標為假設情景案例,通過數(shù)據(jù)庫查詢,使用反向計算確定3種可能的污染源排放情況下污染物初始排放量,再通過試錯法,應用模型正向計算得到最終可能的污染源位置及對應的排放量,快速準確地完成污染物溯源。
[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.
【作者單位】： 清華大學環(huán)境學院;上海市城市規(guī)劃設計研究院;
【基金】：產(chǎn)業(yè)密集型城鎮(zhèn)水環(huán)境綜合整治技術研究與示范項目(2011ZX07301-003) 佛山市水環(huán)境重金屬污染監(jiān)控和應急管理技術研究二期項目(20132101541)
【分類號】：X522

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