Water Quality Model Study Of Surrounding Area Of Drainage Outlet Of Funan River

The city rivers are the rivers or river sections passing or originating from the city, including the man power excavated, years developed canals or ditch systems which already have the characteristics of the natural rivers. The city rivers pollution is one of the most serious environment problem which exist in the global scope generally. This subject is taking the Funan River after the treatment as the object, established the unidimensional piston water quality model according to its characteristic flows, conducted the research to the main 4 water quality parameter degradation relations and the movement rule, obtained the four groups of unidimensional water quality model, thus could forecast the water quality change in the rivers and the sewer pipe, found the essential controlled variable of the pollutant degradation and diffusion in the rivers and the sewer pipe, and could take the suitable measure by the water quality pollution characteristic which obtained from the water quality model. Simultaneously All these studies also have provided the data and theories support for enhancing the self leaning ability of the Funan River body; bettering the river water quality.The study results demonstrating that:1. DO is directly influenced by velocity of flow and aeration intensity. In the same velocity of flow but different aeration intensity situation, the aeration intensity has the obvious influence to the distribution of DO in the pipeline. In initial period 0-30min, aeration intensity is bigger, the DO ascending velocity is quicker, the maximum value of the rise also increases along with the aeration intensity increases, its change scope is 4mg/L~7mg/L, but the time which the DO begin to drop all appears at about 60min, nearly in the identical time achieves the most low point of...