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Method for degrading chlorinated phenol by sodium persulfate

A sodium persulfate and chlorinated phenol technology, applied in the field of environmental management, can solve the problems of great influence on pH value, unsatisfactory effect, complicated process, etc., and achieve remarkable effect, high removal rate and simple process technology

Inactive Publication Date: 2010-07-14
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some of these methods are more complicated in technology, some have higher cost, some will form energy waste in the form of gas, heat, etc., and some are greatly affected by the pH value, and the results are not ideal in a word.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In chlorophenol with an initial molar concentration of 0.05 mM (mmol / L), Na 2 S 2 o 8 The initial molar concentration in the treatment system is 9.0 mM, and when chlorophenol is treated, the treatment temperature is controlled at 60° C. for 100 minutes. When treating chlorophenols, adding H 2 SO 4 , adjust the pH of the treatment system to 3.0. When treating chlorophenols, adding Ag + , Ag + The initial molarity was 0.3 mM.

Embodiment 2

[0020] In chlorophenol at an initial molarity of 0.1 mM, Na 2 S 2 o 8 The initial molar concentration in the treatment system is 9.0 mM, and when the chlorophenol is treated, the treatment temperature is controlled at 20° C. for 80 minutes. When treating chlorophenols, adding H 2 SO 4 Or NaOH, adjust the pH value of the treatment system to 7.0. When treating chlorophenols, adding Ag + , Ag + The initial molarity was 0.6 mM.

Embodiment 3

[0022] In chlorophenol with an initial molar concentration of 0.3mM, Na 2 S 2 o 8 The initial molar concentration in the treatment system is 3.0 mM, and when chlorophenol is treated, the treatment temperature is controlled at 80° C. for 80 minutes. When treating chlorophenols, add NaOH to adjust the pH value of the treatment system to 9.0. When treating chlorophenols, adding Ag + , Ag + The initial molarity was 0.3 mM.

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PUM

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Abstract

The invention relates to a degradation processing process of chlorinated phenol, particularly to application of sodium persulfate in the degradation processing process of the chlorinated phenol, and belongs to the technical field of environmental management. In the method of the invention, the chlorinated phenol is degraded in the degradation process under the condition of ensuring the existence of Na2S2O8; and meanwhile, H2SO4 or NaOH is added, and the pH value of a processing system is regulated to be 1.0-9.0. The invention is simple and easy to operate and has remarkable effect; and the removal rate of the chlorinated phenol is high, and the removal rate of 2, 4-dichlorophen is as high as 99.76 percent.

Description

technical field [0001] The invention relates to a degradation treatment process of chlorinated phenols, in particular to the application of sodium persulfate in the degradation treatment process of chlorinated phenols, and belongs to the technical field of environmental treatment. Background technique [0002] Chlorophenols are a class of substances that are toxic to organisms, even at low concentrations. A large amount of chlorophenol compounds used and produced in the production process enter the environment, causing great harm to the natural environment, especially serious pollution to water and soil. [0003] Due to the benzene ring structure and the presence of chlorine atoms, chlorophenols have strong resistance to degradation and are difficult to degrade with conventional processes and biological treatments. The commonly used anti-degradation treatment methods of chlorophenols include enzyme catalyst treatment (such as 200810126027.X), sunlight irradiation catalytic ...

Claims

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Application Information

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IPC IPC(8): C02F1/72C02F1/58B09C1/08C02F101/36
Inventor 周学飞刘晶
Owner KUNMING UNIV OF SCI & TECH
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