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A multi-stage ozone catalytic oxidation internal circulation device and its application method

A technology of ozone catalytic oxidation and internal circulation, applied in chemical instruments and methods, oxidized water/sewage treatment, water treatment parameter control, etc., can solve the problems of low ozone utilization rate and high ozone dosage, and achieve waste water treatment cost saving , increase the contact time, improve the effect of wastewater treatment efficiency

Active Publication Date: 2022-05-31
哈尔滨工创环保科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problems of low ozone utilization rate and high ozone dosage in the current catalytic ozone oxidation technology for treating coal chemical industry wastewater, and provides a multi-stage ozone catalytic oxidation internal circulation device and its use method

Method used

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  • A multi-stage ozone catalytic oxidation internal circulation device and its application method
  • A multi-stage ozone catalytic oxidation internal circulation device and its application method

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specific Embodiment approach 1

[0022] Embodiment 1: A multi-stage ozone catalytic oxidation internal circulation device in this embodiment includes a water intake system, a main reaction system, an ozone intake system, a tail gas treatment system, an internal circulation system and a water outlet pipe 31;

[0023] The water inlet system includes an inlet pump 1, a water inlet pipe 2 and a water distributor 3. The water outlet of the water inlet pipe 2 is communicated with the water inlet of the water distributor 3. The water distributor 3 is located above the liquid level of the primary reaction tank 17, and the water inlet pipe 2 The water inlet is communicated with the water outlet of the inlet pump 1;

[0024] The main reaction system is divided into a primary reaction pool 17, a secondary reaction pool 18 and a tertiary reaction pool 19 by two baffles; the primary reaction pool 17, the secondary reaction pool 18 and the tertiary reaction pool 19 pass through the two The baffles form vertical baffles; th...

specific Embodiment approach 2

[0028] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the liquid level of the first-level reaction tank 17 is higher than the liquid level of the second-level reaction tank 18 and the third-level reaction tank 19. The liquid level of the first-stage reaction tank 19 is flat. Others are the same as the first embodiment.

specific Embodiment approach 3

[0029] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the ozone inlet main pipe 8 is provided with an ozone inlet main valve 9 . Others are the same as in the first or second embodiment.

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Abstract

A multi-stage ozone catalytic oxidation internal circulation device and a use method thereof, relating to a multi-stage ozone catalytic oxidation internal circulation device and a use method. The present invention aims to solve the problems of low ozone utilization rate and high ozone dosage in the current catalytic ozone oxidation technology for treating coal chemical industry wastewater. Internal circulation system and water outlet pipe; the treatment method is: 1. Put in catalyst; 2. Waste water enters the reaction tank and open the ozone intake system and internal circulation system; 3. Exhaust gas is discharged through the ozone destroyer; 4. Take water from the water outlet pipe Sample measurement parameters. The invention reduces the total dosage of ozone, saves waste water treatment cost, and improves the utilization rate of ozone. The invention is applied in the field of water treatment.

Description

technical field [0001] The invention relates to a multi-stage ozone catalytic oxidation internal circulation device and a using method. Background technique [0002] Coal chemical wastewater has complex water quality, large water volume, and contains a large amount of toxic and harmful substances such as phenols, aromatic hydrocarbons, long-chain alkanes, and heterocycles. It is a typical high-concentration refractory biodegradable industrial wastewater. Under the background of deteriorating water environment and serious shortage of water resources, conventional biological treatment processes cannot obtain ideal effluent quality. In recent years, catalytic ozonation technology, especially heterogeneous catalytic ozonation technology, has the advantages of strong oxidizing ability, short reaction time and no secondary pollution, and can effectively remove difficult biodegradable pollutants in water. However, the current catalytic ozone oxidation technology also has some draw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/72C02F1/78
CPCC02F1/78C02F1/725C02F2209/38C02F2209/23Y02W10/10
Inventor 徐春艳朱昊韩洪军
Owner 哈尔滨工创环保科技有限公司
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