Intelligent comprehensive evaluation method and system for terrestrial pollutants

Abstract

The invention relates to the field of estuary area pollutant monitoring, and provides an intelligent comprehensive evaluation method and system for terrestrial source pollutants, and the method comprises the steps: S1, obtaining a pollutant data set and a river flow data set, obtaining the pollution source type of each pollutant through the correlation coefficient of each pollutant data and the river flow data, and obtaining the flux of each pollutant through calculation; s2, pollution factor indexes corresponding to the pollutant data are obtained through calculation, the weight of each pollution factor index is obtained through an analytic hierarchy process, and a comprehensive pollution evaluation level is obtained through calculation according to the weight of each pollution factor index; and S3, taking the pollution factor index and the pollutant flux corresponding to each pollutant data as input, taking the comprehensive pollution evaluation level as output, training an artificial neural network, and applying the trained artificial neural network to comprehensive pollution evaluation of terrestrial pollutants. According to the method, the accuracy and credibility of comprehensive evaluation are improved, and auxiliary decision making is provided in future river treatment.

Description

technical field [0001] The invention relates to the field of pollutant monitoring in estuary areas, in particular to an intelligent comprehensive evaluation method and system for land-based pollutants. Background technique [0002] In recent years, with the development of my country's economy, the advancement of urbanization and the improvement of people's living standards, the waste water, waste liquid and domestic sewage generated by industry and agriculture have been continuously discharged into rivers, resulting in continuous aggravation of water pollution problems. The decline of the ecological environment quality of river water has adverse effects on water quality. [0003] Quantitative or qualitative evaluation of water quality elements of rivers is required to provide scientific basis for subsequent governance and protection work. The water quality evaluation methods currently used mainly include single factor evaluation method, comprehensive pollution index method, ...

AI Technical Summary

Problems solved by technology

Due to the complexity and dynamics of multiple pollution factors in the water environment, and the characteristics of ambiguity and uncertainty, only the single-factor evaluation method is used to compare the measured concentrations of pollutants with the set standards item by item to evaluate the worst items. As the category of water quality evaluation, it cannot meet the demand

The single-factor evaluation method only considers the influence of the most serious pollution factor, exaggerates its decisive effect on the result, and ignores the effects of other factors; the comprehensive pollution index method has no definite analysis standard, and the pollution index varies with the number of evaluation factors. and change, the comparability is poor; the fuzzy evaluation method emphasizes that the extreme value is too strong, and the algorithm of value selection is easy to cause the loss of data information, resulting in unsatisfactory evaluation results

Images