Study On Improvement Program Of Water Quality Synthesis Improvement In Fuzhou River Basin

In recent years, in our country, the research on the control of river pollution work by individual governance development to comprehensive management, and with the system analysis technology in water pollution control system planning in the application of the continuous deepening, river pollution control also tends to be more and more reasonable, making river pollution governance as a whole has reached a techno economic and environmental effect of optimization? Although the planning of the water environment in our country started late, but the domestic relevant units of many rivers and lakes built or applied the mathematical model of water quality, and achieved a large number of results?Fuzhou river watershed is located in the northeast old industrial base Wafangdian City territory, area of industrial developed, large quantities of water, wastewater emissions, Wafangdian City of industrial and domestic sewage are flowing into complex, river, a tributary of the back River, after looked back after the river Longshan sewage volume factory processing into complex, river basin in the middle, resulting in a complex,Dong Feng Shui reservoir water pollution, which cannot meet the requirements of the water quality of water function zone. Dongfeng reservoir for Wafangdian urban life and the water for Industry and agriculture is the main source of water supply? Therefore, Dongfeng reservoir water pollution has seriously affect the life of urban residents in the basin, but also restricts the development of local society and economy? Study on water quality comprehensive improvement plan is proposed for in order to improve this situation, This paper choose Fuzhou river shongshu-Fuzhou river Estuary as the research object, through the establishment of hydrology, water quality model, water environmental capacity calculation part of the river, proposed Fuzhouhe watershed water quality comprehensive improvement plan?The main research contents of this paper are as follows:(1) According to the current situation of water resources in the basin, collect and collate information, including hydrology, water quality data, sewage outfall monitoring data and investigation, and to analyze and collate the data obtained?(2) Application of QUAL2K water quality model, first of all, using the historical runoff for many years to calculate the hydrological frequency, the rate of water environmental capacity calculation of the required parameters? According to the water quality monitoring data to determine the input data to the model, division of the river channel, the selected parameters are input into the QUAL2K model was simulated, and the selection of water quality monitoring data of the average value is conducted to validate the model, can get simulated values and measured values coincide better, indicating that the model has good simulation accuracy, can be a good quantitative description Fuzhou river watershed water quality in time and space changes through model validation?(3) According to the simulation results, suitable water environment capacity calculation method, calculate current reach of each functional section of the water environmental capacity, and the results of the analysis and evaluation; calculation results show, Dongfeng reservoir COD of water environment capacity is small, ammonia water environmental capacity is negative, said Ming Dongfeng reservoir Library under the current situation of water, has been unable to provide dilution capacity, more than the load of water function zone?(4) According to the study of river water environmental capacity calculation and the results of the analysis, put forward the suitable for the Fuzhou river basin water environment comprehensive improvement scheme and control method, and for each control method are detailed analyzed?...