Three-dimensional fluorescence spectrum method for measuring chlorine disinfection by-product precursor in water

A three-dimensional fluorescence and chlorine disinfection technology, applied in the direction of fluorescence/phosphorescence, material excitation analysis, etc., can solve the problems that cannot be used to directly represent the precursors of chlorine disinfection by-products, and achieve easy online detection, simple operation, and high sensitivity Effect

Inactive Publication Date: 2010-09-01
BEIJING UNIV OF TECH
View PDF0 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the results obtained by three-dimensional fluorescence spectroscopy are only the type and content of organic matter, and cannot be used to directly repres

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Three-dimensional fluorescence spectrum method for measuring chlorine disinfection by-product precursor in water
  • Three-dimensional fluorescence spectrum method for measuring chlorine disinfection by-product precursor in water
  • Three-dimensional fluorescence spectrum method for measuring chlorine disinfection by-product precursor in water

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0076] The above method is used to continuously determine the generation potential of chlorine disinfection by-products in the effluent of a laboratory reclaimed water treatment device. The main measurement process is as follows:

[0077] (1) Establish the correlation equation between the characteristic fluorescence intensity and the generation potential of chlorine disinfection by-products

[0078] ① Prepare standard solution

[0079] Humic acid: biochemical reagent, Shanghai Jufeng Chemical Technology Co., Ltd.

[0080] Fulvic acid: biochemical reagent.

[0081] The above reagents are prepared from natural humic acids, such as peat, lignite or certain soils.

[0082] Weigh 0.1000g of humic acid, dissolve it with 0.01mol / L KOH as a solvent, prepare a stock solution with a concentration of 100mg / L, and then dilute it to 1.0mg / L, 2.0mg / L, 3.0mg / L in sequence , 4.0mg / L, 5.0mg / L, 6.0mg / L, 7.0mg / L standard solution;

[0083] Weigh 1.0g of fulvic acid, prepare it into a stock solution with a ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the environmental monitoring and analysis technical field, which can be used for measuring a chlorine disinfection by-product precursor in water, and provides technical support for pollution control. Aiming at the problems of the measuring method of the existing chlorine disinfection by-product precursor, such as complicated steps and indefinite results, the feasibility for characterizing the chlorine disinfection by-product precursor by three-dimensional feature fluorescence parameters is researched, the correlation between the feature fluorescence characteristic parameters of the chlorine disinfection by-product precursor and the generation potential thereof is confirmed, and the simple and fast method for measuring the chlorine disinfection by-product precursor in water is developed. The measuring method comprises the following steps: establishing a linearity correction equation between the feature fluorescence intensity of the chlorine disinfection by-product precursor and the generation potential thereof; scanning a water sample to be tested with a three-dimensional fluorescence spectrum; and calculating the generation potential of the chlorine disinfection by-products and performing result correction. By adopting the method, the chlorine disinfection by-product precursor in water can be classified and analyzed without complex sample processing and testing; the average relative error is about 10%; and a sample structure is not damaged, and on-line inspection is easily realized.

Description

technical field [0001] The invention belongs to environmental monitoring and analysis, is applied to the determination of disinfection by-product precursors in reclaimed water, can be used for the research and development of regenerated water quality safety assurance technology and the control of chlorine disinfection by-product precursors; it is also suitable for the detection of chlorine disinfection by-products in drinking water control. Background technique [0002] (1) Determination of precursors of chlorine disinfection by-products in drinking water [0003] Disinfection by-products (DBPs, Disinfection by products) are substances that are toxic to the human body and are produced by the reaction of disinfectants and dissolved organic matter in water. When chlorine disinfectants are used, trihalomethanes (THMs) and haloacetic acids (HAAs) chlorine disinfection by-products are mainly generated, and dissolved organic matter in water is called chlorine disinfection by-prod...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N21/64
Inventor 郝瑞霞马忠志万宏文
Owner BEIJING UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap