上海市苏州河雨天最大允许排江负荷研究

Study on Maximum Permissible River Discharge Load from Suzhou Creek during Heavy Rainfall

在苏州河水系水量和水质模型的基础上,建立了苏州河水环境承载能力模型,并利用该模型对苏州河干流的水环境承载能力进行了研究,提出了苏州河环境综合整治二期工程实施后,确保苏州河水质基本稳定达标所容许的最大污染负荷以及相应的降雨条件。工程实践表明,根据评估结果建设的5座调蓄池,为削减苏州河沿线市政泵站的雨天排江污染负荷、改善苏州河水质发挥了重要作用。

Based on the hydraulics model and water quantity model of Suzhou Creek, the carrying capacity model of water environment of Suzhou Creek was built up. By using this model, the carrying capacity of water environment in mainstream of Suzhou Creek was studied. The maximum permissible pollution load and corresponding rainfall condition which can ensure the water quality of Suzhou Creek to reach the standards steadily after the Suzhou Creek rehabilitation second-stage water project are put forward. The engineering practice shows that the five storage reservoirs built according to the evaluation results play an important role in reducing the drainage pollutant load of pump station along the line of Suzhou Creek in a rainy day, and improving the water quality of Suzhou Creek.