Method and device for establishing reservoir water quality prediction model
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A water quality prediction and reservoir technology, applied in the field of water pollution control, can solve problems such as reservoir retention
Inactive Publication Date: 2018-11-23
BEIJING GEOENVIRON ENG & TECH
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[0006] However, there is no research on the early warning of water blooms in reservoirs, and the detection of reservoirs is still at the level of taking countermeasures after the occurrence of water blooms, and there is a lag
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Embodiment 1
[0059] A method for establishing a reservoir water quality prediction model, referring to figure 1 , the method includes:
[0060] S102. Obtain water quality index monitoring data and algae growth characteristic data within a preset time period of the reservoir to be tested, wherein the preset time period is at least one year, and the water quality index monitoring data at least include: water temperature data, pH value data, dissolved oxygen data , permanganate index, ammonia nitrogen concentration, total phosphorus concentration, total nitrogen concentration, algae growth characteristics data include: chlorophyll a concentration, cyanobacteria density;
[0061] In the embodiment of the present invention, the water quality index monitoring data and algae growth characteristic data within a preset time period of the reservoir to be tested must first be obtained.
[0062] Specifically, a plurality of monitoring points are arranged in the reservoir to be tested, and then monito...
Embodiment 2
[0122] A device for establishing a reservoir water quality prediction model, refer to Figure 4 , the device consists of:
[0123] The obtaining module 11 is used to obtain water quality index monitoring data and algae growth characteristic data within a preset time period of the reservoir to be tested, wherein the preset time period is at least one year, and the water quality index monitoring data includes at least: water temperature data, pH value data , dissolved oxygen data, permanganate index, ammonia nitrogen concentration, total phosphorus concentration, total nitrogen concentration, algae growth characteristics data include: chlorophyll a concentration, cyanobacteria density;
[0124] The fitting analysis module 12 is used to perform fitting analysis on the monitoring data of each water quality index and the concentration of chlorophyll a and the density of cyanobacteria, and determine the main influencing factors of the reservoir to be tested and the multivariate nonl...
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Abstract
The invention provides a method and a device for establishing a reservoir water quality prediction model. The method comprises the following steps: obtaining water quality index monitoring data and algae growth characteristic data; performing fitting analysis on each water quality index monitoring data and algae growth characteristic data, determining main influence factors and multivariate nonlinear models of a to-be-detected reservoir; analyzing a fitting analysis result and the water quality index monitoring data using SPSS to obtain a parameter estimation value, thereby obtaining a first prediction model and a second prediction model; and determining an optimal model in the first prediction model and the second prediction model, using the optimal model as a reservoir water quality prediction model so as to predict the water quality of the to-be-detected reservoir. According to the method, the reservoir water quality prediction model can be obtained, the water quality of the to-be-detected reservoir can be predicted through the reservoir water quality prediction model, early warning can be given to prompt the relevant personnel to take countermeasures in advance, and the technical problem that the hysteresis property exists in the detection for the reservoir at present is alleviated.
Description
technical field [0001] The invention relates to the technical field of water pollution control, in particular to a method and device for establishing a reservoir water quality prediction model. Background technique [0002] Lakes and reservoirs have become an important source of water to ensure people's production and living water, reduce flood disasters, and maintain ecological balance. However, with the further intensification of non-point source pollution, the pollutants entering the reservoir have increased sharply, making the water quality of many lakes and reservoirs continue to deteriorate, and water quality safety cannot be guaranteed, posing a direct threat to the health of urban people. Especially in recent years, all kinds of man-made and accidental water pollution incidents have occurred frequently, which makes the problem of water quality change become the focus of people's attention. [0003] The factors affecting water eutrophication are complex and diverse, ...
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