Study On The Effects Of High Salinity Release In Sediment On Reservoir Structures

In China in recent years,many exogenous pollution of reservoirs,lakes due to factors such as season has become a threat to our water supplyment.The cause of this pollution mainly comes from the release of sediment pollutant.The studytakes Beitang reservoir as an example,combined with its' perfection program.Study the impact on the water quality and the reservoir operation by the release of chlorine ion in the reservoir sediment.Beitang reservoir is located in 2km distance form north town of binhai new area.It is a plain reservoir and Covers an area of 7.43km2.In the year of 2006,Beitang reservoir is identified as the south-north water diversion regulation and emergency reservoir.Its adjust reservoir capacity is 20 million m3.To meet the requirements of reservoir regulation and emergency,it needs to built new warehousing brake,outbound brake and water supply pump station.Therefore,this study aimed at different ways of water supply scheme which will provide a scientific basis for engineering arrangement.(1)Set up a water quality three-dimensional beitang reservoir hydrodynamic mathematical model.(2)According to different reservoir structures and ways of water supply form five water supply scheme,analysis of different water supply scheme of inbound and outbound flow,the flow field in the reservoir area,the reservoir water,chlorine ion concentration changes,as well as the outflow of water quality change,etc.(3)Through comparative analysis,analysis of reservoir water body of the program can keep good circulation,the reservoir exists reflux area,stagnant water area,water supply water can meet the demands of the water quality of water supply,the comparative strengths and weaknesses of each water supply scheme.(4)Through the analysis of the beitang reservoir optimal scheme conclusion,put forward specific layout scheme,summarizes the effects of sediment release of reservoir water quality.