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Non-supported ozone catalyst and use method thereof

An ozone catalytic oxidation, unloaded technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem of limited strength of ozone catalysts, secondary pollution of ozone catalysts , difficult to apply on a large scale, etc., to achieve the effect of improving the effect of ozone catalytic oxidation, convenient operation and management, and high strength

Pending Publication Date: 2022-05-13
上海中耀环保实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ozone catalyst used in this method has limited strength on the one hand, and there is a pulverization problem in the use process. On the other hand, it needs to be modified by acid and oxidation. Reduced by reaction with acid, operation and management are more troublesome, and it is difficult to apply on a large scale

Method used

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  • Non-supported ozone catalyst and use method thereof
  • Non-supported ozone catalyst and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] refer to figure 1 As shown, this embodiment provides a non-supported ozone catalyst titanium disk aeration system, including a water inlet tank 1, an inlet pump 2, a non-loaded ozone catalytic oxidation tank 4, a water production tank 6, an ozone generator 8, and an ozone tail gas Destruction device 12.

[0060] The water inlet tank 1 is connected with the non-load type ozone catalytic oxidation tank 4 through the water inlet pump 2, the water inlet pipe 3 and the water inlet valve 3-1.

[0061] The non-supported ozone catalytic oxidation tank 4 is divided into water inlet channel 4-1, non-supported ozone catalyst B4-2, non-supported ozone catalyst A 4-3, supporting layer 4-4, water distribution tank 4 from top to bottom Gas distribution disc 4-5, support plate 4-6.

[0062] The non-load type ozone catalytic oxidation tank 4 is connected to the water production tank 6 through the water production pipe 5 and the water production valve 5-1.

[0063] The water productio...

Embodiment 2

[0080] refer to figure 2 As shown, this embodiment provides a non-loaded ozone catalyst jet aeration system, including a water inlet tank 1, a water inlet pump 2, a non-loaded ozone catalytic oxidation tank 4, a water production tank 6, a circulation pump 14, and an ozone generator 8 , water injector 16, ozone tail gas destruction device 12.

[0081] The water inlet tank 1 is connected with the non-load type ozone catalytic oxidation tank 4 through the water inlet pump 2, the water inlet pipe 3 and the water inlet valve 3-1.

[0082] The non-supported ozone catalytic oxidation tank 4 is divided into an outlet channel 4-7, a non-supported ozone catalyst B4-2, a non-supported ozone catalyst A 4-3, a supporting layer 4-4, and a water distribution channel from top to bottom. Gas distribution disc 4-5, support plate 4-6.

[0083] The non-load type ozone catalytic oxidation tank 4 is connected to the water production tank 6 through the water production pipe 5 and the water produc...

Embodiment 3

[0101] Same as Example 1, the only difference is that the volume ratio of non-supported ozone catalyst A and non-supported ozone catalyst B is 5:1.

[0102] Use the method of this embodiment to treat the biochemical effluent of certain pharmaceutical wastewater. The raw water COD is 200-300mg / L, after being treated by this system, the COD is 108-171mg / L, the COD removal rate is 43-46%, the ozone amount / COD removal amount is 1.8-2.0, and the waste water is obtained after being treated by this system Good COD removal effect and ozone utilization efficiency.

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Abstract

The invention discloses a non-supported ozone catalyst and a use method thereof, and relates to the technical field of sewage treatment, the non-supported ozone catalyst comprises a non-supported ozone catalyst A and a non-supported ozone catalyst B; the volume ratio of the non-supported ozone catalyst A to the non-supported ozone catalyst B is (5: 1)-(1: 1), both the non-supported ozone catalyst A and the non-supported ozone catalyst B can catalyze ozone to generate hydroxyl radicals, the non-supported ozone catalyst A and the non-supported ozone catalyst B are placed in a non-supported ozone catalyst catalytic oxidation system, and the non-supported ozone catalyst B is placed below the non-supported ozone catalyst B; the risk that the treatment effect is reduced due to falling of active components of the catalyst does not exist, the service life of the catalyst is greatly prolonged, and the operation cost of a catalytic ozonation system is reduced.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a non-loaded ozone catalyst and a use method thereof. Background technique [0002] With the increasingly stringent domestic environmental protection requirements, the advanced treatment of organic wastewater and the reuse of reclaimed water have become the development trend of sewage treatment. Advanced oxidation technology degrades organic matter non-selectively by generating strong oxidizing hydroxyl radicals, which has become the mainstream process for the advanced treatment of refractory organic wastewater biochemical tail water and the retreatment of concentrated water organic matter for reclaimed water reuse. Fenton oxidation and ozone catalytic oxidation are the most commonly used advanced oxidation methods in sewage treatment. [0003] Fenton oxidation method by hydrogen peroxide on Fe 2+ Hydroxyl free radicals are generated under the catalytic action of the c...

Claims

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Application Information

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IPC IPC(8): B01J23/889B01J35/00B01J35/10C02F1/78
CPCB01J23/8892C02F1/725C02F1/78B01J35/19B01J35/60
Inventor 赵宁华陈辉洋章建科曾敏福刘建环魏宏斌刘霞
Owner 上海中耀环保实业有限公司