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Fluorescence spectrum technology-based dissolved organic matter (DOM) water quality monitoring and early warning method

A technology of dissolved organic matter and fluorescence spectroscopy, which is applied in the field of dissolved organic matter DOM water quality monitoring and early warning, can solve the problems of long processing time and low operating efficiency, and achieves improved early warning efficiency, high operating efficiency, and short time-consuming period. Effect

Inactive Publication Date: 2016-02-03
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem mainly solved by the present invention: Aiming at the disadvantages of low operating efficiency and long processing period of the current rapid early warning method for DOM water quality, a fast early warning method for surface water organic pollution based on three-dimensional fluorescence spectrum is provided. The invention converts the image display through the detection of the water quality detector, and then scans the three-dimensional fluorescence spectrum to obtain a three-dimensional fluorescence spectrum. The three-dimensional fluorescence spectrum is obtained after scanning, and the two data are compared and combined into a water quality spectrum of dissolved organic matter DOM water quality, which is compared with the standard spectrum data, and the data of the overall concentration of organic pollutants is calculated and analyzed and sent to the alarm system. If the alarm sounds, the solubility The water quality of organic matter DOM exceeds the standard, otherwise, the water quality of dissolved organic matter DOM does not exceed the standard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0015] Firstly, the spectral feature database is established, humic acid-like fluorescence I (Ex is 340-450nm, Em is 430-510nm), II (Ex is 300-360nm, Em is 360-460nm), III (Ex is 230-280nm, Em is 370~450nm), protein-like fluorescence (Ex is 260~290nm, Em is 300~350nm), peak A-like humic acid (Ex / Em=237~260 / 400~510nm), peak B-like humic acid (Ex / Em=300~380 / 400~510nm), peak C-type protein fluorescence (Ex / Em=340~350 / 370nm), peak D-type protein fluorescence (Ex / Em=230~285 / 357~360nm), The peak E-tryptophan is (Ex / Em=225~240 / 340~385nm), the peak F-tyrosine (Ex / Em=220~240 / 305~325nm); after the database is established, set Fluorescence detection and analysis system, set the excitation wavelength to 200nm, the emission wavelength to 300nm, the response time to automatic mode, the slit width to 8nm, the scanning step to 2nm, 4nm and 5nm, and the scanning speed to 2000nm / min; wait for the above steps to be completed Finally, use an automatic sampling device for automatic sampling, and...

example 2

[0018]Firstly, the spectral feature database is established, humic acid-like fluorescence I (Ex is 340-450nm, Em is 430-510nm), II (Ex is 300-360nm, Em is 360-460nm), III (Ex is 230-280nm, Em is 370~450nm), protein-like fluorescence (Ex is 260~290nm, Em is 300~350nm), peak A-like humic acid (Ex / Em=237~260 / 400~510nm), peak B-like humic acid (Ex / Em=300~380 / 400~510nm), peak C-type protein fluorescence (Ex / Em=340~350 / 370nm), peak D-type protein fluorescence (Ex / Em=230~285 / 357~360nm), The peak E-tryptophan is (Ex / Em=225~240 / 340~385nm), the peak F-tyrosine (Ex / Em=220~240 / 305~325nm); after the database is established, set Fluorescence detection and analysis system, the excitation wavelength is set to 500nm, the emission wavelength is set to 600nm, the response time is set to automatic mode, the slit width is 11nm, the scanning step is 2nm, 4nm and 5nm, and the scanning speed is 2000-2200nm / min; After the steps are completed, use an automatic sampling device for automatic sampling, ...

example 3

[0021] Firstly, the spectral feature database is established, humic acid-like fluorescence I (Ex is 340-450nm, Em is 430-510nm), II (Ex is 300-360nm, Em is 360-460nm), III (Ex is 230-280nm, Em is 370~450nm), protein-like fluorescence (Ex is 260~290nm, Em is 300~350nm), peak A-like humic acid (Ex / Em=237~260 / 400~510nm), peak B-like humic acid (Ex / Em=300~380 / 400~510nm), peak C-type protein fluorescence (Ex / Em=340~350 / 370nm), peak D-type protein fluorescence (Ex / Em=230~285 / 357~360nm), The peak E-tryptophan is (Ex / Em=225~240 / 340~385nm), the peak F-tyrosine (Ex / Em=220~240 / 305~325nm); after the database is established, set Fluorescence detection and analysis system, set the excitation wavelength to 300nm, the emission wavelength to 400nm, the response time to automatic mode, the slit width to 10nm, the scanning step to 2nm, 4nm and 5nm, and the scanning speed to 2100nm / min; wait for the above steps to be completed Finally, use an automatic sampling device for automatic sampling, an...

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Abstract

The invention discloses a fluorescence spectrum technology-based dissolved organic matter (DOM) water quality monitoring and early warning method, and belongs to the technical field of water environment monitoring. The fluorescence spectrum technology-based dissolved organic matter water quality monitoring and early warning method is a surface water organic pollution rapid early warning method based on three-dimensional fluorescence spectrum, and is used for solving problems that rapid early warning method of dissolved organic matter (DOM) water quality is low in efficiency, treatment is time-consuming, and treatment period is long. The fluorescence spectrum technology-based dissolved organic matter water quality monitoring and early warning method is high in operation efficiency, and short in consumed period. The fluorescence spectrum technology-based dissolved organic matter (DOM) water quality monitoring and early warning method is unique; efficiency is increased by 30 to 40% compared with that of the prior art, and early warning time is reduced by 50 to 60%.

Description

technical field [0001] The invention discloses a DOM water quality monitoring and early warning method based on fluorescence spectrum technology, which belongs to the technical field of water environment monitoring. Background technique [0002] With the rapid development of industry, the types and quantities of industrial wastewater produced have increased rapidly, a large number of pollutants have been discharged into the water environment, and the pollution of water bodies has become increasingly widespread and serious, threatening human health and safety. Wastewater is high-concentration organic waste water, with large discharge volume, high toxicity, high concentration of organic matter, high salt content, high chroma, high content of refractory compounds, and difficult treatment. In addition, in the ultra-high concentration organic waste water produced by industry, acid, There are many alkalis, often with strong acid or strong alkali. One is aerobic hazard. Due to biod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64
Inventor 郭迎庆杜尔登李伯平
Owner CHANGZHOU UNIV
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