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Method for analyzing kinetic parameters of ozone oxidation reaction by using variety of absorbance of ozone

A kinetic parameter and reaction kinetics technology, applied in electrical digital data processing, special data processing applications, color/spectral characteristic measurement, etc. The effect of analysis

Inactive Publication Date: 2009-10-14
OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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Problems solved by technology

[0020] The invention provides a method for analyzing the kinetic parameters of the ozone oxidation reaction by using the change of ozone absorbance, which can solve the problems in the prior art that the process is complicated, the human error is large, and the technical level of the experimenter is required for the calculation work, and it can realize No need to add reagents, no secondary pollution, can accurately and quickly analyze the effect of the kinetic parameters of the ozone oxidation reaction

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  • Method for analyzing kinetic parameters of ozone oxidation reaction by using variety of absorbance of ozone
  • Method for analyzing kinetic parameters of ozone oxidation reaction by using variety of absorbance of ozone
  • Method for analyzing kinetic parameters of ozone oxidation reaction by using variety of absorbance of ozone

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[0048] see figure 1 , figure 2 and image 3 ,

[0049] (1). Utilize the ozone generator to generate ozone, under the flow rate of 100-200ml / min, pass through the gas disperser 9 of the ozone solution preparation chamber 10, adopt porous material-Teflon, mix it in the distilled water 11, and continuously feed the ozone After 10 minutes, an ozone solution with an ozone concentration of 0.2mmol / L was obtained, and the feeding was stopped;

[0050] (2). In order to ensure that ozone is a limited reactant, the concentration of organic matter should be 3-5 times greater than the concentration of ozone solution;

[0051] (3). The ozone solution and the organic matter solution are injected into the reaction chamber 4 by quantitative injectors 7 and 14 at the same time, so as to reduce the dead volume;

[0052] (4). In order to ensure the detection accuracy of the optical signal in the ozone oxidation process, the reaction chamber 4 is optically sealed. When the reaction chamber 4...

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Abstract

A method of utilizing variation of ozone absorbance to analyze dynamic parameter of ozone oxidizing reaction includes using ozone as finite reactant to be consumed continuously to cause continuous variation of ozone absorbance when ozone is oxidized with organic matter, using light path system to detect said variation in real time for obtaining relation curve of absorbance to time, using data processing unit to obtain ozone absorbance at any time according to obtained relation curve then enabling data processing unit to quickly calculate out dynamic parameter according to the formula.

Description

technical field [0001] The invention belongs to the technical field of environmental chemical monitoring, and specifically uses the change of absorbance brought about by the consumption of ozone in the ozone oxidation process to analyze the kinetic parameters of the ozone oxidation reaction, and the kinetic parameters include the reaction rate constant and the reaction order. Background technique [0002] As a strong oxidant, ozone is effectively used in the process of degrading organic pollutants because it does not produce secondary pollution during use. However, the reaction between ozone and organic matter is extremely complicated, and the reaction is affected by water pH, ozone concentration, and organic matter. Concentration, water body temperature, reaction time and other factors have a great influence, so the research on the reaction mechanism, reaction equation and reaction products of ozone and organic matter is not enough. The chemical reaction kinetics is a very ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/27G06F19/00
Inventor 刘岩白强侯广利徐珊珊杜立彬张颖尤小华孟庆明张虹斌
Owner OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI