CN115818821B - Advanced treatment device for catalytic ozonation papermaking wastewater - Google Patents
Advanced treatment device for catalytic ozonation papermaking wastewater Download PDFInfo
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- CN115818821B CN115818821B CN202310001828.8A CN202310001828A CN115818821B CN 115818821 B CN115818821 B CN 115818821B CN 202310001828 A CN202310001828 A CN 202310001828A CN 115818821 B CN115818821 B CN 115818821B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention relates to the field of sewage treatment, and discloses a catalytic ozonation papermaking wastewater advanced treatment device which comprises a barrel, a top piece and a low piece, wherein the top piece and the low piece are fixedly arranged at two ends of the barrel, a water outlet is formed in the barrel, an exhaust port communicated with the top piece is formed in the top of the top piece, and the low piece is connected with an ozone generating structure, a hydrogen peroxide filling structure and an ultrasonic structure, so that wastewater treatment is sequentially performed through ozone treatment, hydrogen peroxide treatment and ultrasonic treatment, and the treatment effect is improved. The cylinder body is symmetrically provided with a plurality of ozone aeration heads and multi-stage telescopic rods, the multi-stage telescopic rods penetrate through the top piece and are concentrically connected with the top piece in a rotating mode, a controllable telescopic rotating pipe wall brush is additionally arranged in the reaction device, one-key cleaning of the pipe wall is achieved, and the investment of oily substances attached to the pipe wall due to the fact that the reaction device is used for treating papermaking wastewater for a long time in manual cleaning is reduced.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to a catalytic ozonation papermaking wastewater advanced treatment device.
Background
At present, the ozone oxidation water treatment technology is widely used for advanced wastewater treatment of papermaking wastewater, printing and dyeing wastewater and the like, and good wastewater treatment effect is achieved. The advanced ozone oxidation treatment device is used as a place for water treatment and is a key factor influencing the water treatment efficiency. However, the conventional advanced ozone oxidation treatment apparatus has the following problems:
(1) The ozone reaction device adopts a mode of only installing a single ozone aeration head at the bottom, ozone bubbles are easy to gather at the bottom and cannot be transferred to the upper liquid level, the mass transfer efficiency of gas and liquid is low, and the utilization rate is low.
(2) The ozone oxidation papermaking wastewater treatment effect is obvious, but long-term use of the reaction device for treating papermaking wastewater is easy to cause oily substances on the pipe wall to adhere, and the attractiveness and the accuracy of measuring indexes are affected without treatment.
Therefore, there is a need for improvements to existing ozone oxidation advanced treatment devices.
Disclosure of Invention
The invention aims to provide a catalytic ozonation papermaking wastewater advanced treatment device, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an advanced treatment device for catalytic ozonation papermaking wastewater, comprising:
the device comprises a barrel, a top piece and a low piece, wherein the top piece and the low piece are fixedly arranged at two ends of the barrel, a water outlet is formed in the barrel, an exhaust port communicated with the top piece is formed in the top of the top piece, the low piece is connected with an ozone generating structure, a hydrogen peroxide filling structure and an ultrasonic device, and wastewater treatment is sequentially performed through ozone treatment, hydrogen peroxide treatment and ultrasonic treatment;
a plurality of ozone aeration heads are symmetrically arranged on the cylinder;
the multistage telescopic link, multistage telescopic link runs through the top piece and rotates with it to be connected with it is concentric, multistage telescopic link connects and installs drive structure on the top piece, multistage telescopic link is kept away from drive structure's one end is installed and is cleared up the structure.
As a further scheme of the invention: the ozone generating structure comprises an ozone generator, the ozone generator is connected with a jet structure arranged between the ozone generator and the cylinder body through a second conveying pipe, a flowmeter for controlling the flow rate of the ozone generator is arranged on the second conveying pipe, and a first one-way valve is arranged on the inner side of the second conveying pipe;
one side of the jet flow structure is also provided with a water inlet structure connected with the jet flow structure.
As still further aspects of the invention: the jet flow structure comprises a jet flow box, and the jet flow box is communicated with the second conveying pipe and the water inlet structure;
an air pump is fixedly arranged on one side of the jet flow box, the output end of the air pump is communicated with the jet flow box, a first transmission rod is rotatably arranged on the inner side of the cylinder body, and a plurality of stirring pieces are fixedly arranged on the circumference of the outer side of the first transmission rod at equal intervals;
the jet flow box is characterized in that a second transmission rod is further rotatably arranged on the inner side of the jet flow box and is coaxially fixed with an output shaft of the air pump motor, the second transmission rod is connected with the first transmission rod through a bevel gear set, and the jet flow box is communicated with the top piece through a third conveying pipe which is arranged in an L shape.
As a further scheme of the invention: the water inlet structure comprises a first diaphragm pump and a storage tank, the output end of the first diaphragm pump is connected with the jet flow tank through a first conveying pipe, and a second one-way valve is arranged in the first conveying pipe;
the storage tank is internally divided into a sewage cavity and a hydrogen peroxide storage cavity by a partition board, and the sewage cavity is communicated with the output end of the first diaphragm pump.
As still further aspects of the invention: the hydrogen peroxide filling structure comprises a second diaphragm pump, the output end of the second diaphragm pump is communicated with the low piece, and the output end of the second diaphragm pump is communicated with the hydrogen peroxide storage cavity through a fourth conveying pipe;
and an adjusting knob is arranged on the connecting pipe at the output end of the second diaphragm pump and the first conveying pipe.
As still further aspects of the invention: the driving structure comprises a motor fixedly installed on the top piece, and an output shaft of the motor is coaxially fixed with the multistage telescopic rod.
As still further aspects of the invention: the cleaning structure comprises a bearing plate which is coaxially and fixedly arranged at the end part of the movable rod of the multi-stage telescopic rod, sleeve plates are symmetrically and slidably arranged on the bearing plate, brush pieces are fixedly arranged at the end parts of the two sleeve plates, bristles are arranged on the two brush pieces, two symmetrically arranged limiting blocks are fixedly arranged on the bearing plate, and the limiting blocks are connected with the brush pieces through springs;
the balancing weights are arranged on the opposite sides of the two brushes.
As still further aspects of the invention: the metal parts arranged in the cylinder body and the jet flow box are all made of stainless steel.
Compared with the prior art, the invention has the beneficial effects that: the ozone aeration heads are additionally arranged at different heights and in different directions, so that the mixing effect of liquid and gas is improved, the uniform gas distribution effect is realized, the purpose of efficiently removing organic pollutants in wastewater is realized through the biological adsorption degradation effect of the catalyst and the strong oxidizing property OH generated by the O and HO chain reaction, and the standard emission of the wastewater is ensured;
meanwhile, as the calcium additive is more in the papermaking process, the content of calcium ions in the papermaking wastewater is higher, oily substances on the pipe wall are easy to adhere when the reaction device is used for treating the papermaking wastewater for a long time, and a controllable telescopic rotary pipe wall brush is necessary to be additionally arranged in the reaction device, so that one-key cleaning of the pipe wall is realized, the investment of manually cleaning the pipe wall is reduced, the cleaning efficiency of the pipe wall is improved, and the problem that the oily substances on the pipe wall adhere after the papermaking wastewater is treated is solved.
Drawings
FIG. 1 is a schematic diagram of a catalytic ozonation papermaking wastewater advanced treatment apparatus.
Fig. 2 is a schematic view of the structure in the other direction of fig. 1.
FIG. 3 is a schematic diagram of the internal structure of a storage tank and a jet tank in a catalytic ozonation papermaking wastewater advanced treatment apparatus.
Fig. 4 is a schematic diagram of the structure at a in fig. 3.
Fig. 5 is a schematic structural view of a multistage telescopic rod in the catalytic ozonation papermaking wastewater advanced treatment apparatus.
FIG. 6 is a schematic diagram of the structure of a cleaning structure in a catalytic ozonation papermaking wastewater advanced treatment apparatus.
In the figure: 1. a cylinder; 2. a top piece; 3. a motor; 4. an exhaust port; 5. an ozone aeration head; 6. a storage tank; 7. a first delivery tube; 8. a first diaphragm pump; 9. an ozone generator; 10. a second delivery tube; 11. a flow meter; 12. an air pump; 13. a jet box; 14. a third delivery tube; 15. a low part; 16. an adjustment knob; 17. a second diaphragm pump; 18. a fourth conveying pipe; 19. a partition plate; 20. a first transmission rod; 21. a bevel gear set; 22. a stirring member; 23. a second transmission rod; 24. a multi-stage telescopic rod; 25. a receiving plate; 26. a sleeve plate; 27. balancing weight; 28. a limiting block; 29. a spring; 30. a brush.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, an element in the present disclosure may be referred to as being "fixed" or "disposed" on another element or being directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1-6, in the embodiment of the invention, a catalytic ozonation papermaking wastewater advanced treatment device comprises a barrel 1, a top piece 2 and a low piece 15 which are fixedly installed at two ends of the barrel 1, wherein a water outlet is formed in the barrel 1, an exhaust port 4 communicated with the top piece 2 is formed in the top of the top piece 2, and the low piece 15 is connected with an ozone generating structure, a hydrogen peroxide filling structure and an ultrasonic device, so that wastewater treatment is sequentially performed through ozone treatment, hydrogen peroxide treatment and ultrasonic treatment, and the treatment effect is improved.
It should be noted that the cavitation effect of the ultrasonic wave provides possibility for degrading harmful organic matters in the water, thereby realizing the purpose of ultrasonic sewage treatment. In the sewage treatment process, the cavitation of ultrasonic wave has very strong degradation capability to organic matters, the degradation speed is very fast, the high energy generated by the collapse of ultrasonic wave cavitation bubbles is enough to break chemical bonds, the cavitation bubbles collapse to generate hydroxyl (OH) and hydrogen (H), the hydroxyl (OH) and the hydrogen (H) react with the organic matters in an oxidation way, harmful organic matters in the water body can be converted into CO2, H2O, inorganic ions or organic matters which are less toxic and easy to degrade than the original organic matters, and meanwhile, the breaking of bubbles enhances the purification treatment of the wastewater.
The ultrasonic treatment adopts a conventional structure, so that the description thereof is omitted.
The ozone generating structure comprises an ozone generator 9, the ozone generator 9 is connected with a jet flow structure arranged between the ozone generator 9 and the cylinder 1 through a second conveying pipe 10, a flowmeter 11 for controlling the flow rate of the ozone generator 9 is arranged on the second conveying pipe 10, and a first one-way valve is arranged on the inner side of the second conveying pipe 10;
one side of the jet flow structure is also provided with a water inlet structure connected with the jet flow structure.
The water inlet structure comprises a first diaphragm pump 8 and a storage tank 6, wherein the output end of the first diaphragm pump 8 is connected with the jet tank 13 through a first conveying pipe 7, and a second one-way valve is arranged in the first conveying pipe 7;
the storage tank 6 is internally divided into a sewage cavity and a hydrogen peroxide storage cavity by a partition plate 19, and the sewage cavity is communicated with the output end of the first diaphragm pump 8.
The jet structure comprises a jet box 13, and the jet box 13 is communicated with the second conveying pipe 10 and the water inlet structure;
an air pump 12 is fixedly arranged on one side of the jet flow box 13, the output end of the air pump 12 is communicated with the jet flow box 13, a first transmission rod 20 is rotatably arranged on the inner side of the cylinder body 1, and a plurality of stirring pieces 22 are fixedly arranged on the outer side circumference of the first transmission rod 20 at equal intervals;
the inner side of the jet flow box 13 is further rotatably provided with a second transmission rod 23, the second transmission rod 23 is coaxially fixed with an output shaft of the motor of the air pump 12, the second transmission rod 23 is connected with the first transmission rod 20 through a bevel gear set 21, and the jet flow box 13 is communicated with the top piece 2 through a third conveying pipe 14 which is arranged in an L shape.
Further, when the air pump 12 works, the air pump is pressurized to the inner side of the jet flow box 13, and when the air pump 12 works, the output shaft of the motor of the air pump 12 also drives the second transmission rod 23 to rotate, the second transmission rod 23 drives the first transmission rod 20 to rotate through the bevel gear set 21, when the first transmission rod 20 rotates, the stirring piece 22 is used for mixing ozone and sewage added into the jet flow box 13, after the air pump 12 is pressurized, the atmospheric pressure in the jet flow box 13 is increased, and the ozone and the sewage are output to the inner side of the top piece 2 through the third conveying pipe 14 under the driving of the atmospheric pressure.
Still further, when the first diaphragm pump 8 works, the sewage in the sewage cavity is conveyed to the inner side of the jet flow box 13 through the first conveying pipe 7 for mixing;
among them, the check valves installed inside the first and second delivery pipes 7 and 10 can prevent backflow when the air pump 12 pressurizes the inside of the jet tank 13.
In a further step, when the ozone generator 9 works, ozone is supplied to the jet structure through the second conveying pipe 10, and the supply speed is regulated through the flowmeter 11 and the supply speed structure, when the water inlet structure works, water to be treated is pumped into the jet structure to be mixed, so that the water is conveyed to the inner side of the cylinder 1 after being mixed, hydrogen peroxide is fed to the inner side of the cylinder 1 through the hydrogen peroxide filling structure, and the mixing effect of gas and water is improved through ozone aeration heads arranged at different heights and in different directions, so that the reaction time is accelerated;
the flue gas removed during the reaction is discharged through the exhaust port 4 and is treated by an ozone destruction device so as to avoid pollution;
before the papermaking wastewater is treated by the device, the water body is dark yellow, the initial COD value is between 100 and 120, the water body starts to fade after being treated for 15min, the water body almost completely fades after 30min, the COD value of the water body is reduced to 40 to 60, and the removal rate is 50 to 60 percent.
The hydrogen peroxide filling structure comprises a second diaphragm pump 17, wherein the output end of the second diaphragm pump 17 is communicated with the low piece 15, and the output end of the second diaphragm pump 17 is communicated with the hydrogen peroxide storage cavity through a fourth conveying pipe 18;
an adjusting knob 16 is mounted on the connecting pipe of the output end of the second diaphragm pump 17 and the first conveying pipe 7.
Further, when the second diaphragm pump 17 works, hydrogen peroxide in the hydrogen peroxide storage cavity is conveyed into the low part 15 through the fourth conveying pipe 18, and the mixing of liquid and gas is improved through the ozone aeration heads 5 at different heights and in different directions, so that the reaction time is shortened.
A plurality of ozone aeration heads 5 are symmetrically arranged on the cylinder body 1;
the multistage telescopic link 24, multistage telescopic link 24 runs through the top piece 2 and with it concentric rotation is connected, multistage telescopic link 24 is connected and is installed the drive structure on the top piece 2, multistage telescopic link 24 is kept away from drive structure's one end is installed and is cleared up the structure.
The driving structure comprises a motor 3 fixedly mounted on the top piece 2, and an output shaft of the motor 3 is coaxially fixed with the multi-stage telescopic rod 24.
Further, when the motor 3 works, an output shaft of the output end drives the multi-stage telescopic rod 24 to rotate, and when the multi-stage telescopic rod 24 rotates, the cleaning structure is driven to rotate;
it should be noted that, in the present embodiment, the motor 3 is a high-torque dc motor, and of course, a stepping motor or a servo motor may be selected according to actual production requirements, which is not specifically limited in this application, so as to meet driving requirements.
The cleaning structure comprises a bearing plate 25 coaxially and fixedly arranged at the end part of a movable rod of the multi-stage telescopic rod 24, sleeve plates 26 are symmetrically and slidably arranged on the bearing plate 25, brush pieces 30 are fixedly arranged at the end parts of the two sleeve plates 26, bristles are arranged on the two brush pieces 30, two symmetrically arranged limiting blocks 28 are fixedly arranged on the bearing plate 25, and the limiting blocks 28 are connected with the brush pieces 30 through springs 29;
the opposite sides of the two brushes 30 are each provided with a counterweight 27.
Further, when the multi-stage telescopic rod 24 rotates, the bearing plate 25 is driven to rotate, when the bearing plate 25 rotates, the sleeve plate 26 is driven to rotate, the balancing weights 27, the brushes 30, the limiting blocks 28 and the springs 29 are driven to rotate along with the sleeve plate 26, meanwhile, the two sleeve plates 26 are driven to move towards opposite safety under the action of centrifugal force, when the sleeve plates 26 move, the brushes 30 and the balancing weights 27 are driven to move along with the sleeve plates, and meanwhile, the springs 29 are pulled up, so that certain elastic potential energy stored by the springs 29 is achieved;
the balancing weight 27 plays a role in improving the stability of centrifugal force, when the brush 30 moves to the end of the stroke, bristles arranged on the brush 30 are abutted against the inner wall of the cylinder 1, so that the inner wall of the cylinder 1 is cleaned during rotation, and the bearing plate 25 and parts on the bearing plate 25 can be driven to integrally and vertically move during the operation of the multi-stage telescopic rod 24;
it should be noted that, the multi-stage telescopic rod 24 is wirelessly connected with the control unit, and the control unit regularly drives the multi-stage telescopic rod 24 to perform vertical reciprocating motion, so that the cleaning of the inner wall of the cylinder 1 can be completed by one key;
in yet another embodiment of the present embodiment, the sleeve plate 26 and the receiving plate 25 may be configured to be telescopic in multiple stages, so that the occupied area is smaller when not extended, and the interior of the cylinder 1 may be cleaned normally when extended.
The metal parts arranged in the cylinder body 1 and the jet flow box 13 are made of 316 stainless steel.
Furthermore, the 316 stainless steel is added with 2% of molybdenum element on the basis of the common 304 stainless steel, has more excellent corrosion resistance and ozone corrosion resistance grade reaching A level, thus having remarkable improvement on service life.
In conclusion, by additionally arranging the ozone aeration heads at different heights and in different directions, the mixing effect of liquid and gas is improved, the uniform gas distribution and water distribution effect is realized, and O 3 And H is 2 O 2 The strong oxidizing property OH generated by the chain reaction realizes the purpose of efficiently removing organic pollutants in the wastewater, and ensures the standard discharge of the wastewater;
meanwhile, as the calcium additive is more in the papermaking process, the content of calcium ions in the papermaking wastewater is higher, oily substances on the pipe wall are easy to adhere when the reaction device is used for treating the papermaking wastewater for a long time, and a controllable telescopic rotary pipe wall brush is necessary to be additionally arranged in the reaction device, so that one-key cleaning of the pipe wall is realized, the investment of manually cleaning the pipe wall is reduced, the cleaning efficiency of the pipe wall is improved, and the problem that the oily substances on the pipe wall adhere after the papermaking wastewater is treated is solved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. An advanced treatment device for catalytic ozonation papermaking wastewater, which is characterized by comprising:
the device comprises a barrel body (1), a top piece (2) and a low piece (15) which are fixedly arranged at two ends of the barrel body (1), wherein a water outlet is formed in the barrel body (1), an exhaust port (4) communicated with the top piece (2) is formed in the top of the top piece, the low piece (15) is connected with an ozone generating structure, a hydrogen peroxide filling structure and an ultrasonic device, and wastewater treatment is sequentially performed through ozone treatment, hydrogen peroxide treatment and ultrasonic treatment;
a plurality of ozone aeration heads (5) are symmetrically arranged on the cylinder body (1);
the multi-stage telescopic rod (24) penetrates through the top piece (2) and is concentrically and rotatably connected with the top piece, the multi-stage telescopic rod (24) is connected with a driving structure arranged on the top piece (2), and a cleaning structure is arranged at one end, far away from the driving structure, of the multi-stage telescopic rod (24);
the ozone generating structure comprises an ozone generator (9), the ozone generator (9) is connected with a jet structure arranged between the ozone generator (9) and the cylinder body (1) through a second conveying pipe (10), a flowmeter (11) for controlling the flow rate of the ozone generator (9) is arranged on the second conveying pipe (10), and a first one-way valve is arranged on the inner side of the second conveying pipe (10);
one side of the jet flow structure is also provided with a water inlet structure connected with the jet flow structure;
the driving structure comprises a motor (3) fixedly arranged on the top piece (2), and an output shaft of the motor (3) is coaxially fixed with the multi-stage telescopic rod (24);
the cleaning structure comprises a bearing plate (25) which is coaxially and fixedly arranged at the end part of a movable rod of the multistage telescopic rod (24), sleeve plates (26) are symmetrically and slidably arranged on the bearing plate (25), brush pieces (30) are fixedly arranged at the end parts of the two sleeve plates (26), brush hair is arranged on the two brush pieces (30), two symmetrically arranged limiting blocks (28) are fixedly arranged on the bearing plate (25), and the limiting blocks (28) are connected with the brush pieces (30) through springs (29);
the counter weights (27) are arranged on the opposite sides of the two brushes (30).
2. The advanced treatment device for catalytic ozonation of papermaking wastewater according to claim 1, wherein the jet structure comprises a jet box (13), and the jet box (13) is communicated with the second conveying pipe (10) and the water inlet structure;
an air pump (12) is fixedly arranged on one side of the jet flow box (13), the output end of the air pump (12) is communicated with the jet flow box (13), a first transmission rod (20) is rotatably arranged on the inner side of the cylinder body (1), and a plurality of stirring pieces (22) are fixedly arranged on the circumference of the outer side of the first transmission rod (20) at equal intervals;
the jet flow box (13) is characterized in that a second transmission rod (23) is further rotatably arranged on the inner side of the jet flow box (13), the second transmission rod (23) is coaxially fixed with an output shaft of a motor of the air pump (12), the second transmission rod (23) is connected with the first transmission rod (20) through a bevel gear set (21), and the jet flow box (13) is communicated with the top piece (2) through a third conveying pipe (14) which is arranged in an L shape.
3. The advanced treatment device for catalytic ozonation papermaking wastewater according to claim 2, wherein the water inlet structure comprises a first diaphragm pump (8) and a storage tank (6), the output end of the first diaphragm pump (8) is connected with the jet tank (13) through a first conveying pipe (7), and a second one-way valve is arranged in the first conveying pipe (7);
the storage tank (6) is internally divided into a sewage cavity and a hydrogen peroxide storage cavity by a partition plate (19), and the sewage cavity is communicated with the output end of the first diaphragm pump (8).
4. The advanced treatment device for catalytic ozonation papermaking wastewater according to claim 1, wherein the hydrogen peroxide filling structure comprises a second diaphragm pump (17), an output end of the second diaphragm pump (17) is communicated with the low piece (15), and an output end of the second diaphragm pump (17) is communicated with the hydrogen peroxide storage cavity through a fourth conveying pipe (18);
an adjusting knob (16) is arranged on the connecting pipe at the output end of the second diaphragm pump (17) and the first conveying pipe (7).
5. The advanced treatment device for catalytic ozonation papermaking wastewater according to claim 2, wherein the metal pieces arranged in the cylinder (1) and the jet box (13) are made of 316 stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310001828.8A CN115818821B (en) | 2023-01-03 | 2023-01-03 | Advanced treatment device for catalytic ozonation papermaking wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310001828.8A CN115818821B (en) | 2023-01-03 | 2023-01-03 | Advanced treatment device for catalytic ozonation papermaking wastewater |
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| CN115818821A CN115818821A (en) | 2023-03-21 |
| CN115818821B true CN115818821B (en) | 2023-07-25 |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211864028U (en) * | 2019-12-27 | 2020-11-06 | 羿太环保科技（上海）有限公司 | Papermaking wastewater treatment device |
| CN216141380U (en) * | 2021-08-12 | 2022-03-29 | 北矿大(南京)新能源环保技术研究院有限公司 | Ozone and hydrogen peroxide combined wastewater treatment device |
| CN115178548B (en) * | 2022-07-04 | 2024-04-09 | 神州伟业建设集团有限公司 | Magnetic force compensation type large oil storage tank cleaning equipment and use method thereof |
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