Method for catalytic oxidation treatment of anisole waste water

A catalytic oxidation, heterogeneous catalytic oxidation technology, applied in the direction of oxidized water/sewage treatment, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as difficult to deal with, complex components, etc., and achieve simple operation, simple preparation, and reaction The effect of mild conditions

Inactive Publication Date: 2005-01-26
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the chemical wastewater produced by some chemical companies in the production process contains anisole, trichloromethoxybenzene, trifluoromethoxybenzene, p-nitrotrifluoromethoxybenzene, p-aminotrifluoromethoxybenzene etc., the composition is complex, and conventional methods are difficult to handle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Effect of Chlorine Dioxide on Anisole Wastewater Treatment

[0022] Only chlorine dioxide was used for the treatment of anisole wastewater.

[0023] It is carried out in a reactor made of PVC, the amount of treated water is 600ml, and the air is passed through. COD Cr The water quality chemical oxygen demand was determined by the dichromate method (GB 11914-89) for analysis, the same below.

[0024] After the raw water is treated by flocculation, the COD Cr : 5005mg / L, pH: 4-5, see Table 1 for the treatment results.

[0025] Reaction time

Embodiment 2

[0027] M / Al 2 o 3 Catalyst preparation:

[0028] Take 0.18mol / L of Fe(NO 3 ) 3 Solution 100ml, 100 grams of 40 ~ 60 mesh Al 2 o 3 The particles were poured into the impregnation solution and stirred, left to stand for 10 hours, dried at 110°C for 2 hours, then calcined at 350°C for 3 hours, and naturally cooled to room temperature to prepare catalyst A. The weight of metal components in catalyst A is: Fe: 1%, the rest is carrier Al 2 o 3 .

Embodiment 3

[0030] Effect of Catalyst A on Anisole Wastewater Treatment

[0031] The reaction is carried out in a reactor made of PVC, the amount of treated water is 600ml, and air is passed through. Load 100ml of catalyst A prepared according to Example 2.

[0032] After the raw water is treated by flocculation, the COD Cr : 5005mg / L, pH: 4-5, see Table 2 for the treatment results.

[0033] Reaction time

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PUM

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Abstract

The invention discloses a method for catalytic oxidation treatment of anisole waste water which consists of, first subjecting the methyl phenyl ether to chlorine dioxide catalytic oxidation treatment, at the presence of catalyst, treating 10-10 minutes to remove most of the organics, after chlorine dioxide catalytic oxidation treatment, proceeding electric-polyphase catalytic oxidation treatment at the presence of catalyst, applying external electric field to trigger catalyzed oxidation for the organic contaminant in the methyl phenyl ether waste water on the catalyst surface.

Description

technical field [0001] The invention relates to industrial waste water treatment, in particular to a chlorine dioxide-electroheterogeneous catalytic oxidation method for treating anisole waste water. Background technique [0002] At present, the chemical wastewater produced by some chemical companies in the production process contains anisole, trichloromethoxybenzene, trifluoromethoxybenzene, p-nitrotrifluoromethoxybenzene, p-aminotrifluoromethoxybenzene etc., the composition is complex, and conventional methods are difficult to handle. [0003] As a strong oxidizing agent, chlorine dioxide has a wide application prospect in drinking water disinfection, and has become the most ideal replacement product among the internationally recognized chlorine series disinfectants. (New water treatment agent-chlorine dioxide technology and its application, Huang Junli, Chemical Industry Press, May 2002). [0004] Due to its strong oxidizing properties and long-lasting oxidizing ability...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/06B01J23/745B01J23/755C02F1/467C02F1/76
Inventor 杨旭孙承林蔡钊荣王全义
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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