CN218539408U

CN218539408U - Ozone liquid phase catalysis-photocatalysis reaction device

Info

Publication number: CN218539408U
Application number: CN202222157591.6U
Authority: CN
Inventors: 关宏讯
Original assignee: BEIJING TIANHAO KERUN ENVIRONMENT TECHNOLOGY CO LTD
Current assignee: BEIJING TIANHAO KERUN ENVIRONMENT TECHNOLOGY CO LTD
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2023-02-28
Anticipated expiration: 2032-08-16

Abstract

The utility model discloses an ozone liquid phase catalysis-photocatalysis reaction unit, include: mixing unit for be mixed liquid with ozone, waste water and hydrogen peroxide solution, the processing unit for handle mixed liquid, the processing unit is including the ozone liquid phase catalysis module and the photocatalysis module that connect gradually, this ozone liquid phase catalysis-photocatalysis reaction unit mixes ozone, waste water and hydrogen peroxide solution for mixed liquid through mixing unit, the reaction of rethread ozone liquid phase catalysis module catalysis ozone and sewage improves oxidation efficiency, later oxidizes the organic matter through the photocatalysis module, makes waste water reach emission standard.

Description

Ozone liquid phase catalysis-photocatalysis reaction device

Technical Field

The utility model belongs to the technical field of water treatment, more specifically relates to an ozone liquid phase catalysis-photocatalysis reaction unit.

Background

The existing single advanced oxidation technology for coking wastewater, such as Fenton oxidation, ozone oxidation, wet oxidation, ultraviolet light catalysis and the like, has the defects of large medicament consumption, high energy consumption, relatively weak oxidation capability and the like, and is difficult to meet the requirements of standard discharge or wastewater recycling.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough of existence among the prior art, provide an ozone liquid phase catalysis-photocatalytic reaction device, this ozone liquid phase catalysis-photocatalytic reaction device mixes ozone, waste water and hydrogen peroxide solution for mixed liquid through mixing unit, and rethread ozone liquid phase catalysis module catalysis ozone improves oxidation efficiency with the reaction of sewage, later passes through photocatalytic module oxidation organic matter, makes waste water reach emission standard.

In order to achieve the above object, the present invention provides an ozone liquid phase catalysis-photocatalysis reaction apparatus, comprising:

the mixing unit is used for mixing ozone, wastewater and hydrogen peroxide into a mixed solution;

and the treatment unit is used for treating the mixed liquid and comprises an ozone liquid-phase catalysis module and a photocatalysis module which are sequentially connected.

Optionally, the ozone liquid phase catalytic module comprises:

the first shell is provided with a water through hole connected with the photocatalytic module;

the first shell is internally provided with a plurality of baffle plates, the baffle plates are arranged in the first shell, a snake-shaped flow passage is formed in the first shell by the baffle plates, and two ends of the snake-shaped flow passage are respectively connected with the mixing unit and the limber holes.

Optionally, the photocatalytic module includes a second housing, the second housing is disposed on one side of the first housing, and a plurality of ultraviolet lamp tubes and a plurality of catalytic reaction plates that are mutually matched are disposed in the second housing at intervals.

Optionally, the ultraviolet lamp tube includes:

an ultraviolet mercury lamp;

and the quartz sleeve is sleeved on the outer side of the ultraviolet mercury lamp.

Optionally, the catalytic reaction plate comprises a photocatalyst aluminum-based honeycomb network, and the photocatalyst aluminum-based honeycomb network is provided with nano titanium dioxide.

Optionally, a plurality of ultraviolet lamp tubes and a plurality of catalytic reaction plates are arranged in a staggered manner.

Optionally, the mixing unit comprises:

the mixing box is connected with the input end of the waste water pipe, the input end of the ozone pipe and the input end of hydrogen peroxide;

and the input end of the gas-liquid mixing pump is connected with the output end of the mixing box, and the output end of the gas-liquid mixing pump is connected with the processing unit through the ozone diffusion unit.

Optionally, a micro-bubble generator connected with the ozone pipe is arranged in the mixing tank.

Optionally, a plurality of the baffles are staggered up and down in the first shell to form a vertical serpentine flow channel.

Optionally, the water inlet of the processing unit is located at the lower end of one side of the first casing far away from the second casing, and the water outlet of the processing unit is located at the upper end of one side of the second casing far away from the first casing.

The utility model provides an ozone liquid phase catalysis-photocatalysis reaction unit, its beneficial effect lies in:

the ozone liquid phase catalysis-photocatalysis reaction device mixes ozone, wastewater and hydrogen peroxide into mixed liquid through the mixing unit, then catalyzes the reaction of ozone and sewage through the ozone liquid phase catalysis module, improves the oxidation efficiency, and finally oxidizes organic matters through the photocatalysis module to enable the wastewater to reach the emission standard.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present invention.

Fig. 1 shows a schematic structural diagram of an ozone liquid phase catalytic-photocatalytic reaction device according to an embodiment of the present invention.

Description of reference numerals:

1. a mixing box; 2. a microbubble generator; 3. a gas-liquid mixing pump; 4. an ozone mixing and diffusing system; 5. an ozone liquid phase catalysis module; 6. a photocatalytic module; 7. a partition plate; 8. an ultraviolet lamp tube; 9. a catalytic reaction plate.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

As shown in fig. 1, an ozone liquid phase catalysis-photocatalysis reaction apparatus comprises:

and the treatment unit is used for treating the mixed liquid and comprises an ozone liquid phase catalysis module 5 and a photocatalysis module 6 which are sequentially connected.

Specifically, coking wastewater biochemical secondary water outlet pipe and hydrogen peroxide pipeline are respectively with coking wastewater biochemical secondary play water and hydrogen peroxide drainage to steam mixing box 1 in, through mixing unit with ozone, waste water and hydrogen peroxide mixing for the mixed liquid, the reaction of rethread ozone liquid phase catalytic module 5 catalysis ozone and sewage improves oxidation efficiency, later through 6 oxidation organic matters of photocatalysis module, make waste water reach emission standard.

In the present embodiment, the ozone liquid phase catalytic module 5 includes:

the first shell is provided with a water through hole connected with the photocatalytic module 6;

a plurality of baffles 7, a plurality of baffles 7 set up in first casing, and a plurality of baffles 7 form snakelike runner in first casing, and snakelike runner's both ends are connected with mixing unit and limbers respectively.

Specifically, a narrow and long rotary gallery is formed through the snake-shaped flow channel, water flow moves forwards in the gallery in a zigzag mode, and the water flow is turned to generate a main stirring effect, so that hydrogen peroxide and ozone are fully contacted with organic matters in wastewater, and the contact time is prolonged to improve the oxidation efficiency.

In this embodiment, the photocatalytic module 6 includes a second casing, the second casing is disposed on one side of the first casing, and a plurality of ultraviolet lamps 8 and a plurality of catalytic reaction plates 9 are disposed in the second casing at intervals and are matched with each other.

Specifically, after the light irradiated by the ultraviolet lamp is transmitted to the surface of the catalytic reaction plate 9, the surface of the catalytic reaction plate 9 undergoes electron transition due to the action of the light energy, and holes (h +) and electrons (e-) are excited. The hole reacts with water to form a hydroxyl radical, and the electron combines with oxygen to form a superoxide radical. The generated free radicals generate more free radicals through chain reaction, and organic matters are oxidized.

In this embodiment, the ultraviolet lamp 8 includes:

an ultraviolet mercury lamp;

and the quartz sleeve is sleeved outside the ultraviolet mercury lamp.

Specifically, the ultraviolet lamp tube 8 is formed by an ultraviolet mercury lamp and a quartz sleeve, and the quartz sleeve can protect the lamp tube from impact and can enable ultraviolet rays to penetrate to a high degree and a large amount.

In this embodiment, the catalytic reaction plate 9 includes a photocatalyst aluminum-based honeycomb network, and the photocatalyst aluminum-based honeycomb network is provided with nano titanium dioxide.

In this embodiment, the plurality of ultraviolet lamps 8 and the plurality of catalytic reaction plates 9 are disposed in a staggered manner.

Specifically, the ultraviolet lamp tubes 8 and the catalytic reaction plate 9 which are arranged in a staggered manner ensure the illumination area and the illumination intensity of the catalytic reaction plate 9.

In the present embodiment, the mixing unit includes:

the mixing box 1 is connected with the input end of the waste water pipe, the input end of the ozone pipe and the input end of hydrogen peroxide;

and the input end of the gas-liquid mixing pump 3 is connected with the output end of the mixing box 1, and the output end of the gas-liquid mixing pump 3 is connected with the processing unit through the ozone diffusion unit 4.

In this embodiment, a microbubble generator 2 connected to an ozone tube is provided in the mixing tank 1.

Specifically, the coking wastewater biochemical secondary water outlet pipeline and the hydrogen peroxide pipeline respectively guide the coking wastewater biochemical secondary water outlet and the hydrogen peroxide into the water vapor mixing box 1, and the coking wastewater biochemical secondary water outlet and the hydrogen peroxide are fully mixed with ozone generated by the ozone microbubble generator 2 in the mixing box 1 and then pumped by the gas-liquid mixing pump 3 to pass through the nanometer microbubble diffuser and enter the treatment unit. The ozone wind source generates micro-bubbles through the micro-bubble generator 2, and the micro-bubbles continuously enter the water under the shearing action of the water with a certain flow rate.

In the present embodiment, a plurality of baffle plates 7 are staggered up and down in the first housing to form a vertical serpentine flow channel.

In this embodiment, the water inlet of the processing unit is located at the lower end of the side of the first shell far away from the second shell, and the water outlet of the processing unit is located at the upper end of the side of the second shell far away from the first shell.

When the ozone liquid phase catalysis-photocatalysis reaction device is used, coking wastewater treatment is used as an example, an ozone air source enters sewage through the microbubble generator 2 to generate bubbles, the micron bubbles continuously enter the water under the shearing action of water with a certain flow rate, coking wastewater biochemical secondary effluent, hydrogen peroxide and ozone are fully mixed in the water vapor mixing box 1 and then pumped by the gas-liquid mixing pump 3 to enter the ozone liquid phase catalysis module 5 after passing through the ozone mixing diffusion system 4, the coking wastewater biochemical secondary effluent is subjected to ozone catalytic oxidation reaction in the ozone liquid phase catalysis module 5 and then enters the photocatalysis module 6, oxidation reaction is performed in the photocatalysis module 6, most organic matters in the coking wastewater are removed, and the effluent meets the requirements of latest coking wastewater discharge or recycling.

While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An ozone liquid phase catalysis-photocatalysis reaction device, which is characterized by comprising:

and the treatment unit is used for treating the mixed liquid and comprises an ozone liquid phase catalysis module and a photocatalysis module which are sequentially connected.

2. The ozone liquid-phase catalytic-photocatalytic reaction device as set forth in claim 1, wherein the ozone liquid-phase catalytic module comprises:

the device comprises a first shell, a second shell and a light source, wherein a water through hole connected with a photocatalytic module is formed in the first shell;

3. The ozone liquid phase catalysis-photocatalysis reaction device according to claim 2, wherein the photocatalysis module comprises a second shell, the second shell is arranged at one side of the first shell, and a plurality of ultraviolet lamp tubes and a plurality of catalytic reaction plates which are mutually matched are arranged in the second shell at intervals.

4. The apparatus as claimed in claim 3, wherein the ultraviolet lamp comprises:

an ultraviolet mercury lamp;

5. The ozone liquid-phase catalysis-photocatalysis reaction device as claimed in claim 3, wherein the catalytic reaction plate comprises a photocatalyst aluminum-based honeycomb network, and nano titanium dioxide is arranged on the photocatalyst aluminum-based honeycomb network.

6. The apparatus as claimed in claim 3, wherein a plurality of UV lamps are disposed in a staggered manner with respect to the plurality of catalytic reaction plates.

7. The ozone liquid phase catalysis-photocatalysis reaction device according to claim 1, wherein the mixing unit comprises:

8. The liquid-phase catalytic ozonation reaction unit as set forth in claim 7, wherein a micro-bubble generator connected to the ozone pipe is provided in the mixing tank.

9. The liquid phase catalytic ozone-photocatalytic reaction device as set forth in claim 2, wherein a plurality of the partition plates are vertically staggered in the first housing to form a vertical serpentine flow channel.

10. The ozone liquid-phase catalytic-photocatalytic reaction device as recited in claim 3, wherein the water inlet of the treatment unit is located at a lower end of a side of the first housing away from the second housing, and the water outlet of the treatment unit is located at an upper end of a side of the second housing away from the first housing.