【摘要】 为研究生态调水对清潩河水质变化的影响并评估生态调水效果,建立适合清潩河的水动力水质模型。以1m3/s、2m3/s、3m3/s不同工况模拟清潩河水动力水质变化规律并分析排污口附近流场和浓度场变化。在分别采取未截污和截污措施,调水流量为3m3/s时,各断面COD浓度和NH3-N浓度分别达到V类和Ⅳ类水质标准;生态调水对排污口附近水质改善效果显著;未考虑截污情况下一旦停止调水,污水排入将直接威胁到清潩河水质。通过研究,论证本文理论与方法的可行性和有效性,对该地区的水污染控制与水资源调控方略和可持续发展战略具有现实的指导意义和应用前景。更多还原

【Abstract】 In order to study the influences of ecological water diversion upon the water quality change of the Qingyi River and to evaluate the effect of ecological water diversion.Hydrodynamic water quality changing laws of Qingyi River under different working conditions are simulated with1m3/s,2m3/s and 3m3/s respectively and the impact on ecological water diversion to the flow and concentration field near the sewage outlet is analyzed.With the adaptation of non-intercepting and intercepting pollution measures,the COD and NH3-N concentrations at each section reach grade V and grade IV when water diversion flow is 3m3/s;Ecological water diversion has had an apparent effect upon water quality improvement near the sewage discharge outlet;Without considering the intercepting pollution conditions in stopping water diversion,sewage drainage will directly threats the water quality in Qingyi River.The feasibility and effectiveness of the theory and method in this paper through studies and tests are of the realistic guiding significance and application future for water pollution control and the planning of water resources regulation and control as well as sustainable development strategy in the region.更多还原