A prediction method for the degradation rate of organic pollutants in the actual water UV advanced oxidation process

An advanced oxidation and degradation rate technology, applied in the direction of testing organic pollutants in water, water pollutants, chemical instruments and methods, etc., can solve the problems of heavy workload, long time and high cost
CN113845170BActive Publication Date: 2022-07-12RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
Publication Date
2022-07-12

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Abstract

The invention discloses a method for predicting the degradation rate of organic pollutants in an actual water body ultraviolet advanced oxidation process. The method of the invention comprises the following steps: (1) adding the probe into the solution of the water matrix substitute substance of different concentrations, degrading the probe by an ultraviolet advanced oxidation process, and measuring the degradation rate of the probe; taking the free radical reaction capacity of the water substrate substitute substance solution of different concentrations as the horizontal Coordinate, take the reciprocal of the probe degradation rate as the ordinate, and make a standard curve; (2) Add the probe to the actual water sample, measure the actual water probe degradation rate, and combine with the standard curve to obtain the actual water background matrix free radical reaction capacity; (3) According to the free radical reaction capacity of the actual water background matrix, combined with the secondary reaction rate constant of target pollutants and free radicals, the degradation rate of organic pollutants was obtained. The present invention has accurate prediction results, solves problems such as difficulty in transporting water samples, lack of advanced instruments on site, etc., and can carry out evaluation of the removal efficiency of pollutants in the advanced ultraviolet oxidation process.
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Description

technical field

[0001] The invention relates to a method for predicting the degradation rate of organic pollutants in an actual water body ultraviolet advanced oxidation process, and belongs to the technical field of environmental protection water treatment. Background technique

[0002] Antibiotics, endocrine disruptors and other trace pollutants in water have received extensive attention due to their high solubility, strong stability and harmful effects on human body. Advanced oxidation processes (AOPs) have emerged as an effective technology for the degradation of organic pollutants due to the generation of highly reactive free radicals. Ultraviolet (UV)-based advanced oxidation processes (UV-AOPs) have been widely used in the removal of trace pollutants in water over the past few decades. According to the different oxidants, UV-based advanced oxidation processes are divided into UV / hydrogen peroxide advanced oxidation processes (UV / H 2 O 2 ), UV / chlorine advanced oxid...

Claims

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