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Catalysis ozonization processing method for dye intermediate wastewater

A dye intermediate and treatment method technology, applied in the field of treatment of dye wastewater, can solve problems such as treatment time and completeness of treatment defects, and achieve the effect of short treatment time, obvious effect and small COD value

Inactive Publication Date: 2009-01-14
郭强
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Problems solved by technology

Although the above method has produced certain effects in the treatment of dye intermediate wastewater, there are defects in the treatment time and the thoroughness of the treatment.

Method used

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Embodiment Construction

[0010] The present invention will be described in further detail below in conjunction with specific embodiments, but not limited to specific examples.

[0011] The specific steps of the catalytic ozonation treatment method of dye intermediate waste water are as follows:

[0012] 1. Mix M with a mixing ratio of 1:2 n -O 2 and F e -N i -Urea mixture is added into the catalytic basket as a catalyst, and then added to the wastewater of dye intermediates to be treated. The ratio of the total amount of the added catalyst mixture to the waste water to be treated is 21:800.

[0013] 2. Connect the catalyst basket to the mixer, turn on the mixer, and keep stirring for more than five minutes to fully integrate the catalyst into the wastewater to be treated.

[0014] 3. The flow rate in the catalytic basket is 0.08m 3 / h, the concentration is 23-26mg / L of ozone.

[0015] 4. Measure the COD value of the solution every 20 minutes. When the COD value reaches below 150mg / L, the treatm...

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Abstract

The invention provides a catalytic ozonation treatment method of dyestuff intermediate wastewater, and the method utilizes the oxidation reaction of catalyst and ozone to carry out the catalytic ozonation treatment to the dyestuff intermediate wastewater. The method has the advantages of simple operation, short treatment time, small COD value of the treated solution and complete treatment, and provides more reliable guarantee for the discharge of dyestuff intermediate wastewater.

Description

1. Technical field: [0001] The invention relates to a wastewater treatment method, in particular to a dye wastewater treatment method. 2. Background technology: [0002] The main component of the dye intermediate wastewater is Tuburic acid. In recent years, the method of ozone oxidation of dye wastewater is mainly to use solid metals, metal salts and their oxides as catalysts to carry out ozone oxidation reaction on wastewater. Although the above method has produced certain effects in the treatment of dye intermediate wastewater, there are defects in the treatment time and the thoroughness of the treatment. 3. Contents of the invention: [0003] The purpose of the present invention is to overcome the above-mentioned disadvantages and provide a method for catalytic ozonation treatment of dye intermediate waste water. The method utilizes the reaction of catalyst and ozone to treat dye wastewater. This method has obvious effects and feasibility in terms of processing time ...

Claims

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Application Information

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IPC IPC(8): C02F1/78B01J23/755
Inventor 郭强
Owner 郭强
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