苏州河七条支流建闸控制工程水环境影响分析

利用苏州河及其支流的水文水质调查资料综合分析苏州河水系控制和污染源分布特点 ,指出苏州河的支流污水汇入是苏州河污染的主要原因。在此基础上 ,建立苏州河水系一维非恒定流河网水动力学模型与一维河网动态水质模型 ,对苏州河七条支流建闸控制工程后的水环境影响进行计算、分析与评价 ,预测建闸后对黄浦江各水厂的水质变化和苏州河、蕴藻浜以及七条支流的水质变化。预测结果 :七条支流建闸后 ,苏州河及其支流的水质有所改善 ,污水在苏州河内回荡有所减轻 ,排向黄浦江的速度加快。另外 ,污水从蕴藻浜排向黄浦江 ,缩短了污水在黄浦江输移的距离 ,黄浦江沿岸的水厂水质大大改善 ,污水在黄浦江内回荡的时间也有所减少 ,但是七条支流及蕴藻浜的水体污染会加重。根据预测结果 ,提出水资源调度方案、解决七条支流及蕴藻浜水污染加重的对策措施

SUZHOU CREEK TRIBUTARIES GATE PROJECT WATER-EIA

According to the investigation data of Suzhou Creek and tributaries, the paper analyses the character of water system and the types of pollutant source and proposes that the wastewater of tributaries is the main reason of Suzhou Creek pollution. Based on the result of calculation by 1D hydrodynamic and water quality model, the paper forecasts the changes of water quality at the inlet of several water works along the Huangpu River, Suzhou Creek and Yunzaobang Creek. The prediction is that the water quality of Suzhou creek will be better when seven tributaries are gated. The oscillation of wastewater in Suzhou Creek will be reduced, and the wastewater will discharge to Huangpu River quickly. If the polluted water discharges from Yunzaobang Creek to Huangpu River, the water quality in the Huangpu River will be better. The distance of the wastewater discharge to Huangpu River will be shortened. The water quality in the inlet of several water works along the Huangpu River will be improved. The oscillation of wastewater in Huangpu River will be reduced. But the Yunzaobang Creek and the seven tributaries water quality will be worse. At last, the paper presents the games of slowing up the water pollution.