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Prince Edward River View - Parameter manipulation technique of river water quality improvement

Author: YangZuo
Tutor: ZhouHuiCheng
School: Dalian University of Technology
Course: Hydrology and Water Resources
Keywords: Dam Joint scheduling Water Environmental Capacity Hydrological hydrodynamic model Water Quality Model
CLC: X522
Type: Master's thesis
Year: 2011
Downloads: 117
Quote: 2
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Abstract

Prince Edward River Basin in northeast old industrial base, water consumption, emissions are also great, and because of the construction of the River Main and Prince Edward multiple reservoirs, dam, drying phenomena often occur during the dry season, causing serious pollution of Prince Edward River downstream water quality, water, environmental degradation , has seriously affected the basin the quality of life of urban residents, which restricts the local social and economic development. Therefore, in order to improve this situation, the paper select Guanyinge Taizihe River Reservoir - Shenwo river as the research object, the establishment of a hydrological model and river hydrodynamic model, water quality model for the joint regulation of water quality and quantity. The main research contents and results are as follows: (a) in order to solve the MIKE 11 software tools, first establish a study reach of rainfall-runoff simulation model, using years of historical runoff data for model parameter calibration; river water and then establish research kinetic model, coupled with the hydrological model, calibration channel roughness coefficient; and conducted PARAMETERS rational analysis; hydrological hydrodynamic simulation results fitted well the measured data, the resulting model parameters can better reflect the watershed The river runoff flow characteristics and evolution. (2) hydrodynamic model based on hydrology, water quality model was established to simulate pollutant attenuation coefficient to determine the diffusion coefficient and the river. Using the established water quality model for the present year's water quality modeling, the various functional areas of water environmental capacity of water were calculated and evaluated, focusing on analysis of the dry season the water environmental capacity. The results show that, in order to study the downstream river sections Shenwo Baishilazi storage for the control section of the sewage pollution control area, dry season water quality worse than Class V, water environmental capacity exceeds the limit. By analyzing the constraints that the river runoff is an important reason to improve water quality in the dry season, a moderate increase in the concentration of pollutants in the river water can be reduced to improve the water self-purification capacity and dilution capacity. (3) has been seriously polluted river dam joint scheduling program of study, pointed out that the river water dam regulation limited; thus study Guanyinge reservoir and dam scheduling, joint scheduling results show that the full use of the water projects regulation, water quality standards yet; in this case to consider the source control, and ultimately heavily polluted river mainly organic pollutants COD and NH3-N reached the water function area Ⅳ class water quality objectives, water environmental capacity increased significantly. Therefore, increasing the dry season water reservoir and control the volume of sewage discharged is to improve the water environment study reach the key. Finally entirety to summarize, and further study of the issues discussed.

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CLC: > Environmental science, safety science > Environmental pollution and its prevention > Water pollution and its control > River
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