引水调控改善太湖湖湾水环境及其效果预测

在总结太湖水污染问题的基础上，分析得出水流缓慢、动力掺混能力弱、水流交换不畅、水体自净能力差、纳污能力小、入湖污染负荷量大且远超过湖湾的纳污能力是梅梁湖湾水污染严重的主要原因，提出区域水污染综合治理、入湖污染物总量控制、引水调控等水污染防治策略及其关键控制技术，利用数值模拟技术给出了太湖梅梁湖湾入湖污染物排放总量控制定额，并结合引江济太调水试验，采用平面二维水流水质数学模型模拟预测引水调控对梅梁湖湾的水环境改善效果及大流量集中调水和小流量维持性调水的水环境

COUNTERMEASURE OF WATER DIVERSION AND REGULATION TO IMPROVE THE WATER ENVIRONMENT OF TAIHU LAKE AND PREDICTION OF ITS EFFECT

According to the characteristics of water pollution in Taihu Lake,this paper summarized major causes of water pollution such as slow water flow,stagnant water exchange,small contamination capacity and pollutants entered into the Meiliang Bay exceeding its environmental capacity,and then proposed key strategies and techniques for water pollution control such as regional comprehensive treatment,total amount control of contamination,and water diversion and regulation.With the application of 2-D hydrodynamic and water quality models,the amount of water pollutant capacity in Meiliang Bay of Taihu Lake was calculated.In consideration of water diversion from the Yangtze River to Taihu Lake,this study simulated the effect of water diversion to Meiliang Bay on the water environment.In order to optimize the regulation of the water diversion,the effect of large-scale and small-scale diversion was forecasted and compared.The results obtained in the present study may provide scientific bases for water pollution control in Meiliang Bay of Taihu Lake and other similar water bodies.