Water quality treatment method based on river network upstream and downstream assessment section water quality target difference

Abstract

The invention discloses a water quality treatment method based on river network upstream and downstream assessment section water quality target difference, which can obtain an assessment section waterquality target C1 after a downstream section according to a relationship between an upstream section water quality target C upstream of a river network and a downstream section water quality target Cdownstream of the river network; and when the assessment section water quality target C1 is superior to the downstream section water quality target C, calculating a first target optimization value according to the river reach degradation coefficient, the river reach flow rate and the section distance between the river network downstream section and the assessment section, so as tomore reasonablyand accurately treating the river network downstream water quality according to the first target optimization value. The treatment process is simple, scientific and effective, management is practical,and the accuracy of corresponding water quality treatment for the complex river network can be improved.

Description

technical field [0001] The invention relates to the technical field of environmental management, in particular to a water quality treatment method based on the difference in water quality targets of the downstream and downstream assessment sections on a river network. Background technique [0002] The assessment section compliance method is to build a fine model of the river network area that can better simulate the hydrological and water quality changes in the research area. Under the design hydrological conditions, based on the reduction potential of various pollution sources, the model trial and error method is used to make each assessment section meet the requirements. Water quality target requirements. For the complex plain river network area with multiple assessment sections, the water quantity and quality will be designed by controlling the area's entry and exit boundaries to eliminate the influence of external boundary conditions on the area. [0003] For a complex ...

AI Technical Summary

Problems solved by technology

If the downstream water quality target is better than the upstream water quality, even if the allowable discharge of the river section is zero, self-purification alone cannot meet the water quality requirements of the assessment section

If the upstream water quality is better than the downstream water quality target, the allowable discharge of the river section will be too large, making the downstream water environment pressure too high or even unable to meet the standard

It can be seen that the traditional water quality determination scheme is difficult to accurately detect the water quality of complex river networks

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