Ultraviolet-visible light full-wavelength scanning sewage quality online rapid detection method and application thereof
A detection method and visible light technology, applied in cleaning methods and utensils, general water supply saving, chemical instruments and methods, etc., can solve the problems that limit the automation and intelligent development of sewage treatment plants, the time lag in data acquisition, and the high cost of instruments. The effect of saving chemical consumption, accurate water quality testing, and high degree of automation
Pending Publication Date: 2020-06-30
QINGDAO TECHNOLOGICAL UNIVERSITY
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Problems solved by technology
However, the water quality online detection system widely used in China still operates according to the process of automatic sampling, analysis and testing, and data analysis and transmission. The automation and intelligent development of sewage treatment plants
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Embodiment 1
[0072] The multiple regression equation model is:
[0073] Y n =A n-1 *x 1 +A n-2 *x 2 +…+A n-215 *x 215 +A n-216 *x 216 (n=1, 2, 3, 4); among them, n corresponds to the PCR method COD model, PLSR method COD model, PCR method nitrate model, PLSR method nitrate model, Y n is the predicted value of the target parameter, A n-1 -A n-216 is the coefficient corresponding to the wavelength of each model (for example: when n is 1, A n-1 for A 1-1 , represents the PCR method COD model x 1 Coefficient); 216 absorbances from 200-737.5nm are used to construct the model, x 1 -x 216 It is the incident light wavelength selected in the whole band, and the wavelength interval of the incident light is 2.5nm. The definitions of the symbols in the equation are shown in Table 1:
[0074] Table 1 Definition of each symbol in calculation equation of multiple regression model
[0075]
[0076]
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The invention relates to an ultraviolet-visible light full-wavelength scanning sewage quality online rapid detection method and an application thereof. A full-waveband spectrum detection system is used for carrying out full-waveband scanning on sewage, a water body is directly scanned in an immersion mode, and obtained spectral absorption information of the sewage is transmitted to the full-waveband spectrum detection system; an absorption full-spectrum chart of the sewage is calculated by utilizing the full-waveband spectrum detection system; a multiple regression equation of each to-be-detected substance is obtained by fitting through a multiple regression equation model by utilizing the full-waveband spectrum detection system, wherein the multiple regression equation model is as follows: Yn = A1 * x1 + A2 * x2 +... + A210 * x210 +... + An * xn (n = 215-217), Yn is a target parameter prediction value, and A1 to An are respectively a coefficient of a wavelength corresponding to each model. The full-waveband spectrum detection system is used for detecting water quality parameter values. The simultaneous detection of various substances is realized, the detection time is short and is15 seconds, and the result can be obtained.
Description
technical field [0001] The invention belongs to the technical field of sewage water quality information detection, and specifically relates to an ultraviolet-visible light full-wavelength scanning sewage water quality online rapid detection method and application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Water pollution is closely related to human life and production activities. It not only affects human health, but is also affected by human activities. As one of the key links in the water environment quality assurance system, the sewage treatment plant's operation effect will determine the pollution degree of the water environment. In the case of tight energy sup...
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IPC IPC(8): G01N21/31G01N21/33G01N33/18G06F17/11G16C10/00B08B5/02B08B13/00
CPCG01N21/31G01N21/33G01N33/18G01N33/1806G06F17/11G16C10/00B08B5/02B08B13/00Y02A20/152
Inventor 王晓东杨曼孜毕学军刘长青
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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