Optimal distribution method and system for pollution loads entering river

Abstract

The invention discloses an optimal distribution method and system for pollution loads entering river, and belongs to the technical field of pollutant discharge total quantity control, and the method comprises the steps: collecting original data of a to-be-studied region water body and cost data needed by each pollution source to reduce pollutants, and building a hydrodynamic water quality model through the original data; determining the background concentration of a target assessment section of the to-be-studied area; when one pollution source is controlled to be discharged each time, utilizing the hydrodynamic water quality model to calculate the target assessment section concentration after the pollution source is discharged; calculating a pollution contribution coefficient of each pollution source unit load according to a partition standard reaching method; and performing total quantity distribution by adopting a partition standard reaching method, establishing an optimal distribution model in combination with the cost data required for reducing the pollutants by each pollution source, and determining a total quantity distribution scheme of the river or the river surge in the to-be-researched area. According to the method, assessment section standard reaching and economic optimization are considered at the same time, and economic cost is saved.

Description

technical field [0001] The invention relates to the technical field of total pollutant discharge control, in particular to a method and system for optimally allocating pollution loads entering rivers. Background technique [0002] With the prominent water pollution problem, water pollution control methods have gradually become an important topic in the research of pollution discharge control. The earliest water pollution control method implemented in my country is the discharge concentration control, followed by the development of theory and technology to the target total control, and now it has entered the stage of capacity total control. Total capacity control refers to controlling the discharge load of water environmental pollutants in the control unit within a certain amount under the principle of both benefit and fair distribution, so that the pollutant content in the receiving water body in the control unit meets the established requirements. water quality goals. [...

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Problems solved by technology

[0003] At present, the total amount control of water environment in my country is still in the development stage. The total amount of pollutants allocation involves social, economic, environmental and other factors. Insufficient consideration of regional differences and lack of effective fairness quantification methods

In addition, domestic scholars have proposed a variety of total pollutant allocation methods, but they are relatively limited by the theoretical discussion of allocation methods or mathematical models, lack of practical application analysis, and are not well integrated with operations.

For example, a Chinese invention patent with the publication number CN109886553A discloses a water pollution load fairness evaluation and distribution method that comprehensively considers many objective factors such as pollution status, natural and geographical conditions, economic development status, population and society, and establishes a new total amount. The distribution system determines a fair and efficient distribution plan, but this plan is only evaluated and analyzed through theoretical algorithms, and has not been combined with operations in depth. The fairness evaluation of distribution is relatively subjective

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