Feature database-based industrial wastewater pollutant tracing analysis method

Abstract

The invention discloses a feature database-based industrial wastewater pollutant tracing analysis method and belongs to the technical field of industrial wastewater pollutant supervision. The method is characterized by comprising the steps of establishing a feature weight database M of parameters of all types of pollutants of each factory; acquiring pollutant data of wastewater discharged by each factory in a target area; establishing a feature data sample library N of pollution discharge of the factory in the target area; establishing a class variable of a KD-tree by utilizing the feature data sample library N; taking the input pollutant measurement values of mixed industrial wastewater as a to-be-identified vector z; and performing matching identification by adopting a kNN classifier and data in the feature data sample library N, thereby finishing pollutant tracing. According to the method, the pollutant tracing of the mixed industrial wastewater in various areas can be finished, an order of target discharge factories is quickly and effectively given, applicability and universality are good, technical support is provided for related functional departments of government to check pollution source factories in order, the check efficiency is greatly improved, and the check success rate is greatly increased.

Description

technical field [0001] The invention belongs to the technical field of industrial sewage pollutant supervision, and relates to a traceability analysis method for industrial sewage pollutants, in particular to a traceability analysis method for industrial sewage pollutants based on a feature database. Background technique [0002] At present, the problem of water pollution in our country is quite serious, which is directly related to the repeated prohibition of illegal discharge beyond the standard. Strengthening the supervision of various industrial sewage discharges has become an important part of the work of governments at all levels, and there is still a lack of effective technical means for effective supervision and traceability of illegal excessive discharges. The traditional traceability technology generally samples and analyzes the factory sewage near the upstream and downstream of the pollution source after the pollution incident occurs. The workload is heavy, the ti...

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Problems solved by technology

The traditional traceability technology generally samples and analyzes the factory sewage near the upstream and downstream of the pollution source after the pollution incident occurs. The workload is heavy, the time is long, and the timeliness is poor. It is often difficult to find the pollution source in time.

[0003] In recent years, some new traceability technologies have also emerged, but they are generally carried out for a certain type of industrial wastewater or certain anions, or methods proposed from the aspect of supervision and management, such as the "A Kind of A Traceability Method for Suspected Risk Sources of Sudden Water Environment Pollution Accidents", the publication number is CN102622670A, and another example is "A Traceability Method for Pollution Sources of Sudden Water Environment Incidents under Limited Conditions" published by the South China Institute of Environmental Science of the Ministry of Environmental Protection in 2014 , the publication number is CN104103005A, the method mainly provides a system whose matching model is only applicable under limited conditions

[0004] There is still a lack of a traceability method that is generally applicable to various industrial mixed wastewater to meet the traceability needs of mixed wastewater in different types of industrial areas

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