Double-layer multi-objective optimization water pollution load distribution method

Abstract

The invention discloses a double-layer multi-objective optimization water pollution load distribution method, which comprises the following steps: determining an environment Gini coefficient accordingto an environment Gini coefficient index and the weight of each environment Gini coefficient index; carrying out upper-layer load distribution according to a double-layer multi-objective optimizationwater pollution load distribution model based on the minimum environmental Gini coefficient and the minimum unit pollutant emission cost, ; and carrying out lower-layer load distribution according tothe double-layer multi-objective optimization water pollution load distribution model based on the maximum industrial total output value and the minimum non-uniform reduction rate of each sewage draining exit. According to the method, the double-layer multi-objective optimization water pollution load distribution model considering water environment protection tax is constructed, fairness and efficiency principles are considered for different levels of management institutions, so that the distribution scheme is more reasonable and easier to accept by pollutant dischargers, and meanwhile, the tax amount setting problem of a watershed management department is solved.

Description

technical field [0001] The invention relates to the technical field of water pollution load distribution, in particular to a double-layer multi-objective optimization water pollution load distribution method. Background technique [0002] The distribution of water pollution load should abide by the two principles of fairness and efficiency. At present, my country's water pollution load allocation mostly adopts the equal proportion method, and all pollutant discharge units are reduced by the same proportion. This method does not consider the socio-economic situation of each pollutant discharge unit and the benefits brought by the amount of sewage discharge, making the distribution results difficult to implement. [0003] There are two types of existing multi-objective distribution models. One is the single-layer multi-objective load distribution model, which is not layered and sets multiple goals to achieve a load distribution model that takes into account the principles of f...

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Problems solved by technology

[0004] The current water pollution load allocation model is difficult to adapt to the distribution needs of different levels in practical applications, and cannot consider the spatial distribution changes of pollutants at different levels, so it cannot be applied in practice; in addition, the existing multi-objective allocation model only considers It is difficult to take into account the principle of fairness or benefit unilaterally, resulting in uneven distribution or waste; there are also existing models that do not consider the impact of the implementation of the water environmental protection tax on pollutant discharge by polluters and load distributors, as well as the water environment. Problems with protection tax amount setting

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