Ozone oxidation device based on composite metal copolymer catalytic material

Abstract

The utility model belongs to water body organic arsine compound purification disposal device technical field discloses an ozone oxidation device based on composite metal copolymer catalytic material. The ozone oxidation device, including ozone generator, rotameter, three -phase reaction column and tail gas absorption bottle, can overcome the problem that composite metal copolymer catalytic material is easy to deposit in gas -liquid solid three -phase system, ensure that gas (ozone), liquid (waste water), solid (catalyst) three -phase is fully, efficient mixing, increase the contact probability and reaction efficiency of catalytic active site, pollutants and ozone molecules, effectively overcome the reaction dead zone. The device has significantly improved the ozone utilization rate and pollutant degradation efficiency, compact structure, easy operation, provides reliable equipment support for efficient, stable advanced oxidation wastewater treatment.

Description

Technical Field

[0001] This utility model relates to the field of purification and treatment technology, specifically to an ozone oxidation device based on a composite metal copolymer catalytic material. Background Technology

[0002] Organic arsine compounds (such as roxarsone (ROX), arsanilic acid (ASA), nitroarsine (NIT), and carbararsone (CAR), as highly efficient feed additives, have played an important role in promoting healthy poultry growth and improving the economic benefits of poultry farming. However, their persistent residues and migration and transformation in the environment pose a serious ecological security challenge and public health threat. Most feed-grade organic arsine compounds remain stable after being metabolized by poultry and enter the environmental system on a large scale through livestock excrement, accumulating and transforming continuously in the soil-water system, forming a significant source of arsenic pollution. Arsenic, a known carcinogen, threatens human health through its pollution chain via contaminated water sources and agricultural products. Long-term intake can easily lead to multi-organ diseases and even serious malignant diseases such as liver cancer, skin cancer, and bladder cancer, seriously endangering national health and safety and the stability of the national public health system. Overcoming the bottlenecks in existing pollution control technologies and developing efficient, stable, and sustainable water-based organic arsine purification and treatment devices has become an urgent task to ensure national ecological and environmental security, food safety, and public health.

[0003] Advanced oxidation technologies (AOPs) utilize strong oxidants and their derived reactive oxygen species (ROS) to efficiently degrade and even completely mineralize recalcitrant organic pollutants in water. Ozone oxidation, as an important AOP method, derives its oxidative efficiency from the high oxidation potential of ozone molecules and the indirect oxidizing power of the reactive oxygen species produced during their decomposition in water. However, ozone oxidation alone suffers from significant limitations such as low ROS generation efficiency and insufficient effective concentration, resulting in slow degradation rates and particularly weak mineralization of organic arsenic pollutants. Catalytic ozone oxidation technology is key to overcoming these bottlenecks. By introducing highly efficient catalysts, ozone utilization efficiency can be significantly improved, powerfully catalyzing the generation of higher concentrations and more reactive hydroxyl radicals (·OH) and other strong oxidizing species from ozone molecules. These active species can indiscriminately attack and deeply degrade various organic arsenic pollutants, significantly increasing the degradation rate and mineralization degree. In traditional catalytic ozone devices, solid catalysts tend to settle to the bottom and aggregate on the walls, making it difficult to fully expose the effective catalytic surface. This results in insufficient contact between the ozone, pollutants, and catalyst phases, leading to incomplete ozone oxidation of pollutants and low efficiency.

[0004] Therefore, designing an ozone oxidation device that ensures full and efficient mixing of the three phases of gas (ozone), liquid (polluted water), and solid (catalyst) has broad application prospects. By tightly integrating the solid catalyst into the ozone reaction system, it is possible to ensure that ozone, polluted water, and the catalyst surface can fully and efficiently contact and react, thereby giving full play to the catalytic efficiency and achieving deep, rapid, and economical purification and treatment of organic pollutants in water. Utility Model Content

[0005] The purpose of this invention is to provide an ozone oxidation device based on a composite metal copolymer catalytic material to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An ozone oxidation device based on a composite metal copolymer catalytic material includes an ozone generator 1, a flow meter 2, a reaction column 3, and a tail gas absorption bottle 4.

[0008] The ozone generator 1 is equipped with a generator adjustment knob to adjust the ozone concentration; the ozone generator 1 is connected to a flow meter 2 through a pipeline, and the flow meter 2 is connected to the bottom plate of the reaction column 3 through a pipeline and enters the interior of the reaction column 3. The end of the pipeline forms a closed O-shaped pipeline, which is located inside the reaction column 3. An aeration device 3-1 is installed on the O-shaped pipeline; the top of the reaction column 3 is connected to the tail gas absorption bottle 4 through a pipeline.

[0009] The reaction column 3 is a cylindrical structure with a top plate and a bottom plate; an aeration device 3-1 is provided in the O-shaped air passage inside the reaction column 3, and several sampling points 3-2 are provided on the side of the reaction column 3;

[0010] The tail gas absorption bottle 4 contains a reducing solution, and the outlet of the pipeline at the top of the reaction column 3 extends below the surface of the reducing solution to absorb unreacted ozone gas; a pipeline is provided above the reducing solution in the tail gas absorption bottle 4 to discharge the gas.

[0011] Preferably, the ozone oxidation device further includes a circulating water cooling device 5; the circulating water cooling device 5 is wrapped around the outside of the ozone generator 1 and is provided with a cooling water inlet, a cooling water pipeline, a cooling water outlet and a circulating pump, and the cooling water pipeline is wrapped around the outside of the ozone generator 1 for cooling.

[0012] Preferably, the flow meter 2 is a rotor flow meter, capillary flow meter, or electromagnetic flow meter.

[0013] Preferably, the reaction column 3 is made of plexiglass and is cylindrical.

[0014] Preferably, the aeration device 3-1 is an O-type air passage, with the gas outlet located below and to the side of the O-type pipe.

[0015] Furthermore, a jet nozzle is installed below the O-shaped pipe, and a titanium alloy aeration head is installed on the side of the O-shaped pipe.

[0016] Preferably, three to five sampling points 3-2 are provided on the reaction column 3, and are distributed on the side wall of the reaction column 3 in the form of equal height distance difference.

[0017] Preferably, the reaction column 3 is packed with a catalyst.

[0018] Preferably, the reducing solution in the tail gas absorption bottle 4 is a potassium iodide solution, a sodium sulfite solution, or a sodium thiosulfate solution.

[0019] This invention overcomes the technical bottleneck restricting the efficiency of ozone catalytic oxidation through the following innovations:

[0020] (1) The unique “O-type” closed-loop gas path integrates bottom and side aeration devices, which can release ozone gas from multiple dimensions such as the bottom and side of the reaction column at the same time, forming turbulence and swirl in the reaction chamber, providing continuous and uniform fluid shear force for the catalyst.

[0021] (2) By precisely controlling the airflow, the composite metal copolymer catalyst material is kept in a fluidized state within the reaction column, rather than being statically deposited. The catalyst particles move randomly within the reaction column under the entrainment of bubbles and the propulsion of liquid flow, and are always in a "floating" state.

[0022] This invention, combined with corresponding processes, effectively addresses the challenge of easy deposition of materials with particle sizes below millimeter in a gas-liquid-solid three-phase system. It ensures thorough and efficient mixing of the gas (ozone), liquid (wastewater), and solid (catalyst) phases, increasing the contact probability and reaction efficiency between catalytically active sites and pollutants and ozone molecules, effectively overcoming reaction dead zones. This device significantly improves ozone utilization and pollutant degradation efficiency, features a compact structure, and is easy to operate, providing reliable equipment support for efficient and stable advanced oxidation wastewater treatment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the ozone oxidation device based on composite metal copolymer catalytic material as described in an embodiment of this utility model. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings and embodiments. All other implementation methods obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] Example 1

[0026] like Figure 1 As shown, an ozone oxidation device based on a composite metal copolymer catalytic material includes an ozone generator 1, a rotor flow meter 2, a reaction column 3, a tail gas absorption bottle 4, and a circulating water cooling device 5.

[0027] The ozone generator 1 is equipped with a generator adjustment knob to adjust the ozone concentration; the ozone generator 1 is connected to a flow meter 2 through a pipeline, and the flow meter 2 is connected to the bottom plate of the reaction column 3 through a pipeline and enters the interior of the reaction column 3; an aeration device 3-1 is provided below and to the side of the O-type pipeline; the top of the reaction column 3 is connected to the tail gas absorption bottle 4 through a pipeline.

[0028] The reaction column 3 is a cylindrical organic glass tube structure with a top plate and a bottom plate. The reaction column 3 has a special O-shaped gas passage inside, with gas outlets located below and to the side of the O-shaped passage. A jet nozzle is installed below the O-shaped passage, and a titanium alloy aeration head is installed to the side of the O-shaped passage. Several sampling points 3-2 are located on the side of the reaction column 3. The jet nozzle below the O-shaped passage is close to the bottom plate of the reaction column 3.

[0029] The tail gas absorption bottle 4 contains a reducing potassium iodide solution, and the outlet of the pipeline at the top of the reaction column 3 extends below the surface of the potassium iodide solution to absorb unreacted ozone gas; a pipeline is provided above the potassium iodide solution in the tail gas absorption bottle 4 to discharge the gas.

[0030] The circulating water cooling device 5 is wrapped around the outside of the ozone generator 1 and is equipped with a cooling water inlet, a cooling water pipeline, a cooling water outlet and a circulating pump. The cooling water pipeline is wrapped around the outside of the ozone generator 1 for cooling.

[0031] Tests have shown that the device can effectively degrade substances such as arsanilic acid, with a degradation rate exceeding 90%.

[0032] The above description is merely an embodiment of this utility model and does not limit the scope of protection of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the scope of protection of this utility model.

Claims

1. An ozone oxidation device based on a composite metal copolymer catalytic material, characterized in that, It includes an ozone generator (1), a flow meter (2), a reaction column (3), and a tail gas absorption bottle (4); The ozone generator (1) is equipped with a generator adjustment knob; the ozone generator (1) is connected to a flow meter (2) through a pipeline, and the flow meter (2) is connected to the bottom plate of the reaction column (3) through a pipeline and enters the interior of the reaction column (3). The end of the pipeline forms a closed O-shaped pipeline, which is located inside the reaction column (3). An aeration device (3-1) is provided on the O-shaped pipeline; the top of the reaction column (3) is connected to the tail gas absorption bottle (4) through a pipeline. The reaction column (3) is a cylindrical structure with a top plate and a bottom plate; several sampling points (3-2) are provided on the side of the reaction column (3); The tail gas absorption bottle (4) contains a reducing solution, and the outlet of the pipeline at the top of the reaction column (3) extends to below the surface of the reducing solution; a pipeline is provided above the reducing solution in the tail gas absorption bottle (4).

2. The ozone oxidation device based on a composite metal copolymer catalytic material according to claim 1, characterized in that, The ozone oxidation device also includes a circulating water cooling device (5); the circulating water cooling device (5) is wrapped around the outside of the ozone generator (1) and is provided with a cooling water inlet, a cooling water pipeline, a cooling water outlet and a circulating pump, with the cooling water pipeline wrapped around the outside of the ozone generator (1).

3. The ozone oxidation device based on composite metal copolymer catalytic material according to claim 1, characterized in that, The flow meter (2) is a rotor flow meter, capillary flow meter or electromagnetic flow meter.

4. The ozone oxidation device based on composite metal copolymer catalytic material according to claim 1, characterized in that, The reaction column (3) is made of plexiglass.

5. The ozone oxidation device based on a composite metal copolymer catalytic material according to claim 1, characterized in that, The reaction column (3) is cylindrical.

6. The ozone oxidation device based on composite metal copolymer catalytic material according to claim 1, characterized in that, The gas outlet is located below and to the side of the O-shaped pipe; a jet nozzle is installed below the O-shaped pipe, and a titanium alloy aeration head is installed to the side of the O-shaped pipe.

7. The ozone oxidation device based on composite metal copolymer catalytic material according to claim 1, characterized in that, Three to five sampling points (3-2) are set on the reaction column (3) and distributed on the side wall of the reaction column (3) with equal height distance.

8. The ozone oxidation device based on composite metal copolymer catalytic material according to claim 1, characterized in that, The reaction column (3) is loaded with a catalyst.

9. The ozone oxidation device based on a composite metal copolymer catalytic material according to claim 1, characterized in that, The reducing solution in the tail gas absorption bottle (4) is potassium iodide solution, sodium sulfite solution or sodium thiosulfate solution.

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