Ozone membrane and ozone ultraviolet combined catalytic oxidation device

Abstract

The ozone membrane and ozone ultraviolet combined catalytic oxidation device comprises a base, the two sides of the upper portion of the base are connected with the two sides of the lower portion of a lower shell in a fastened mode through matching of fastening bolts and nuts, and the upper portion of the lower shell is integrally connected with an upper shell. The two sides of the upper portion of the upper shell are in fastened connection with the two sides of the end cover through cooperation of fastening bolts and nuts, a center pipe is longitudinally arranged in the center of the interior of the lower shell and the upper shell after the lower shell and the upper shell are integrally connected, a PTFE hollow fiber membrane is arranged on the outer portion of the center pipe in the circumferential direction, and casting areas are arranged at the upper end and the lower end of the PTFE hollow fiber membrane correspondingly. An ozone channel is arranged between every two adjacent PTFE hollow fiber membranes, a membrane oxidation gas-water mixing outlet is formed in the corresponding position of the central pipe below the PTFE hollow fiber membranes, an ultraviolet generator is arranged above the central position in the central pipe, and the top end of the ultraviolet generator penetrates through an end cover and is fixed on the end cover through a fastening bolt; and the top of the ultraviolet generator is connected with an ultraviolet generator power supply.

Description

Technical Field

[0001] The utility model relates to the technical field of catalytic oxidation devices, in particular to an ozone membrane and an ozone-ultraviolet combined catalytic oxidation device. Background Art

[0002] At present, with the increase in the types of organic industrial wastewater and the increasingly stringent emission standards, more and more sewage treatment plants need to add advanced oxidation processes to remove the odor of waste liquid and meet the wastewater discharge standards.

[0003] Ozone-UV synergistic oxidation is an advanced oxidation technology that combines ozone oxidation with ultraviolet light irradiation. Under room temperature, ultraviolet light excites ozone to decompose and produce highly reactive oxygen atoms O(1D) and highly reactive oxygen molecules O2(1Δg). In industrial production applications, ultraviolet light conditions with a high quantum yield of O(1D) under 305nm ultraviolet light conditions are used in conjunction with ozone oxidation to better play the advantages of ozone-UV synergistic oxidation technology. The generated O(1D) is captured by water molecules and reacts to generate ·OH with strong oxidizing ability. The green oxidative degradation of pollutants in organic wastewater is mainly achieved by ·OH, and it is widely used in the field of oxidative degradation of organic wastewater pollutants.

[0004] Traditional ozone catalytic oxidation devices have unsatisfactory catalytic oxidation effects due to factors such as uneven water-gas mixing, low degradation rate of organic matter in waste liquid by ozone catalytic oxidation alone, and low solubility of ozone in the aqueous phase.

[0005] Therefore, in order to solve the above problems, an ozone membrane and an ozone-ultraviolet combined catalytic oxidation device are proposed. Utility Model Content

[0006] The utility model aims to provide an ozone membrane and an ozone-ultraviolet combined catalytic oxidation device, comprising a base, wherein the upper two sides of the base are fastened and connected to the lower two sides of the lower shell by fastening bolts and nuts respectively, the upper part of the lower shell is integrally connected to the upper shell, and the upper two sides of the upper shell are fastened and connected to the two sides of the end cover by fastening bolts and nuts. After the lower shell is integrally connected to the upper shell, a central tube is longitudinally arranged at the inner center position, and a PTFE hollow fiber membrane is circumferentially arranged on the outside of the central tube, and casting areas are arranged at the upper and lower ends of the PTFE hollow fiber membrane. An ozone channel is arranged between adjacent PTFE hollow fiber membranes, and a membrane oxidation gas-water mixing outlet is opened at the corresponding position of the central tube below the PTFE hollow fiber membrane. An ultraviolet generator is arranged above the inner center position of the central tube, and the top of the ultraviolet generator passes through the end cover and is fixed to the end cover by fastening bolts, and the top of the ultraviolet generator is connected to the ultraviolet generator power supply.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model combines the ozone high-efficiency gas dissolving function with the membrane catalytic oxidation function and the ozone ultraviolet catalytic oxidation function by arranging an ozone channel and an ultraviolet generator, and adds a rare earth composite catalyst to the PTFE hollow fiber membrane, which greatly improves the treated water volume, improves the removal efficiency of organic matter in sewage by ozone catalytic oxidation, reduces the energy consumption of decomposing sewage organic matter, reduces the investment cost of the treatment device, and does not increase the secondary pollution of sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG1 is a schematic diagram of the structure of the utility model.

[0009] The reference numerals and names in the figures are as follows:

[0010] 1. Base; 2. Lower shell; 3. Upper shell; 4. End cover; 5. Gasket 1; 6. Gasket 2; 7. Adhesive; 8. UV generator; 9. Exhaust gas outlet; 10. UV generator power supply; 11. Fastening bolts; 12. Oxidation water outlet; 13. PTFE hollow fiber membrane; 14. Casting area; 15. High-concentration ozone inlet; 16. Membrane oxidation gas-water mixed outlet; 17. Center tube; 18. Ozone channel; 19. Ozone dissolution; 20. Sewage outlet; 21. Water inlet. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0012] As attached Figure 1As shown, the utility model provides an ozone membrane and ozone ultraviolet combined catalytic oxidation device, including a base 1, the upper two sides of the base 1 are respectively fastened to the lower two sides of the lower shell 2 by fastening bolts and nuts, the upper part of the lower shell 2 is integrally connected with the upper shell 3, and the upper two sides of the upper shell 3 are fastened to the two sides of the end cover 4 by fastening bolts and nuts. After the lower shell 2 is integrally connected with the upper shell 3, a central tube 17 is longitudinally arranged at the inner center position, and a PTFE hollow fiber is circumferentially arranged on the outside of the central tube 17. The PTFE hollow fiber membrane 13 is provided with a casting area 14 at the upper and lower ends, an ozone channel 18 is provided between adjacent PTFE hollow fiber membranes 13, a membrane oxidation gas-water mixing outlet 16 is opened at a corresponding position of the central tube 17 below the PTFE hollow fiber membrane 13, an ultraviolet generator 8 is arranged above the center position inside the central tube 17, the top end of the ultraviolet generator 8 passes through the end cover 4, and is fixed to the end cover 4 by fastening bolts 11, and the top of the ultraviolet generator 8 is connected to the ultraviolet generator power supply 10.

[0013] Specifically, gaskets 1 5 are respectively arranged on both sides of the connection between the base 1 and the lower shell 2 , and gaskets 2 6 are respectively arranged on both sides of the connection between the upper shell 3 and the end cover 4 .

[0014] Specifically, adhesive members 7 are respectively provided on both sides of the lower portion of the lower shell 2 , and the adhesive members 7 are connected to the base 1 by fastening bolts and nuts.

[0015] Specifically, a high-concentration ozone inlet 15 is disposed on the left side of the upper shell 3 , an oxidation water outlet 12 is disposed on the right side of the upper shell 3 , and a water inlet 21 is disposed on the upper right side of the lower shell 2 .

[0016] Specifically, an exhaust gas outlet 9 is provided on the left side above the end cover 4 , and a sewage outlet 20 is provided at the bottom of the lower shell 2 .

[0017] Specifically, a rare earth composite catalyst is added into the PTFE hollow fiber membrane 13, so that the PTFE hollow fiber membrane 13 has the functions of water permeability and catalyst carrier.

[0018] Working principle: sewage is sent in from the water inlet 21, and high-concentration ozone is sent in from the high-concentration ozone inlet 15. The high-concentration ozone enters the ozone channel 18, so the ozone dissolution 19 penetrates the PTFE hollow fiber membrane 13 and dissolves into the sewage in the form of nano-micropores. The membrane oxidation gas-water mixture enters the central tube 17 through the membrane oxidation gas-water mixing outlet 16 below the central tube 17, and the ultraviolet generator power supply 10 is plugged in. The catalytic oxidation water is catalytically oxidized by the ultraviolet generator 7 and sent out through the oxidation water outlet 12 on the upper side of the central tube 17. The sludge produced in the cleaning process is sent downward along the side wall of the PTFE hollow fiber membrane 13 and sent out from the sewage outlet 20.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An ozone membrane and ozone ultraviolet combined catalytic oxidation device, comprising a base (1), wherein the upper two sides of the base (1) are fastened to the lower two sides of the lower shell (2) by fastening bolts and nuts respectively, the upper part of the lower shell (2) is integrally connected to the upper shell (3), and the upper two sides of the upper shell (3) are fastened to the two sides of the end cover (4) by fastening bolts and nuts, characterized in that: After the lower shell (2) and the upper shell (3) are integrally connected, a central tube (17) is longitudinally arranged at the inner center position, and a PTFE hollow fiber membrane (13) is circumferentially arranged outside the central tube (17). Casting areas (14) are arranged at the upper and lower ends of the PTFE hollow fiber membrane (13), and an ozone channel (18) is arranged between adjacent PTFE hollow fiber membranes (13). A membrane oxidation gas-water mixing outlet (16) is opened at a corresponding position of the central tube (17) below the PTFE hollow fiber membrane (13). An ultraviolet generator (8) is arranged above the inner center position of the central tube (17), and the top of the ultraviolet generator (8) passes through the end cover (4) and is fixed to the end cover (4) by fastening bolts (11). The top of the ultraviolet generator (8) is connected to the ultraviolet generator power supply (10).

2. The ozone membrane and ozone ultraviolet combined catalytic oxidation device according to claim 1 is characterized in that: Gaskets 1 (5) are respectively arranged on both sides of the connection between the base (1) and the lower shell (2), and gaskets 2 (6) are respectively arranged on both sides of the connection between the upper shell (3) and the end cover (4).

3. The ozone membrane and ozone ultraviolet combined catalytic oxidation device according to claim 1 is characterized in that: Adhesive components (7) are respectively arranged on both sides below the lower shell (2), and the adhesive components (7) are connected to the base (1) by means of fastening bolts and nuts.

4. The ozone membrane and ozone ultraviolet combined catalytic oxidation device according to claim 1 is characterized in that: A high-concentration ozone inlet (15) is arranged on the left side of the upper shell (3), an oxidation water outlet (12) is arranged on the right side of the upper shell (3), and a water inlet (21) is arranged on the upper right side of the lower shell (2).

5. The ozone membrane and ozone ultraviolet combined catalytic oxidation device according to claim 1 is characterized in that: An exhaust gas outlet (9) is provided on the left side above the end cover (4), and a sewage outlet (20) is provided at the bottom of the lower shell (2).

Images