CN215627017U - Integrated ozone step catalytic oxidation sewage treatment device - Google Patents
Integrated ozone step catalytic oxidation sewage treatment device Download PDFInfo
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- CN215627017U CN215627017U CN202121940886.XU CN202121940886U CN215627017U CN 215627017 U CN215627017 U CN 215627017U CN 202121940886 U CN202121940886 U CN 202121940886U CN 215627017 U CN215627017 U CN 215627017U
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Abstract
The utility model discloses an integrated ozone gradient catalytic oxidation sewage treatment device. The utility model comprises a tank and an internal conduit. An inner pipeline is arranged at the central position of the inner cavity of the tank body. The inner pipe is arranged vertically. The bottom of the inner pipeline is fixed and sealed with the bottom of the inner cavity of the tank body. The top end of the inner pipeline is provided with a horn-shaped guide plate; the inner pipe divides the cavity into a primary oxidation flow passage outside the inner pipe and a secondary oxidation flow passage inside the inner pipe. The secondary oxidation flow passage and the primary oxidation flow passage are communicated only through an opening at the top of the inner pipe. The utility model combines the preliminary direct oxidation and the further catalytic oxidation in the same ozone reaction tank body; sewage is from top to bottom in the tank body, has longer water conservancy residence time, and can be fully oxidized. The utility model can ensure that sewage can smoothly pass through the catalyst packing layer by pressurizing the interior of the tank body and pumping water outwards by using the lifting pump.
Description
Technical Field
The utility model relates to the field of sewage treatment, in particular to an integrated ozone step catalytic oxidation sewage treatment device.
Background
The existing ozone catalytic oxidation sewage treatment device usually adopts a step catalytic oxidation process, namely a two-section or multi-section ozone oxidation connection catalytic oxidation treatment process, and the specific implementation mode is as follows: firstly, introducing wastewater into a first-stage reaction tower, wherein no catalyst is placed in the tower, and sewage and ozone are subjected to direct ozone oxidation reaction in a reactor, wherein easily degradable organic matters are subjected to oxidation degradation in the reaction with ozone; the effluent of the first-stage reaction tower enters a second-stage reaction tower, the catalyst in the second-stage reaction tower decomposes ozone into hydroxyl radicals with stronger oxidizing capability, and refractory organic matters are further oxidized. Although the sewage treatment device can oxidize organic pollutants in the sewage, the sewage needs to flow through the reaction tower and the catalytic tower in sequence in a two-stage or multi-stage process, and the floor area of the reaction device is overlarge; if one-time catalytic oxidation is adopted, the contact time of the sewage mixed with ozone and the filler is short, the sewage cannot be in full contact, the generated hydroxyl free radicals preferentially react with easily-degradable organic matters, the utilization rate of ozone is reduced, the service life of a catalytic material is reduced, the effluent quality is unstable, and the like.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides an integrated ozone gradient catalytic oxidation sewage treatment device, which reduces the volume of a reaction device, enables the sewage to be more fully contacted with ozone and a catalyst packing layer, reduces the using amount of a catalyst, improves the ozone oxidation efficiency, and enables the sewage treatment effect to be better and stable.
The utility model comprises a tank and an internal conduit. An inner pipeline is arranged at the central position of the inner cavity of the tank body. The inner pipe is arranged vertically. The bottom of the inner pipeline is fixed and sealed with the bottom of the inner cavity of the tank body. The top end of the inner pipeline is provided with a horn-shaped guide plate; the inner pipe divides the cavity into a primary oxidation flow passage outside the inner pipe and a secondary oxidation flow passage inside the inner pipe. The secondary oxidation flow passage and the primary oxidation flow passage are communicated only through an opening at the top of the inner pipe.
A water inlet is formed in the bottom of the side face of the tank body; a water outlet is arranged at the central position of the bottom of the tank body. The water inlet is communicated with the primary oxidation flow channel. The water outlet is communicated with the secondary oxidation flow channel and is connected with an external drainage pipeline through a lift pump. One or more pressure increasing pipes are arranged at the top of the inner cavity of the tank body. The pressure increasing pipe is connected with an external air pump through a pressure control valve and used for increasing the air pressure in the tank body. And a catalyst filler layer is arranged in the secondary oxidation flow channel. The bottom of the primary oxidation runner is provided with an annular aeration device. The annular aeration device is connected with an ozone source through an air inlet pipe.
Preferably, the bottom of the inner cavity of the tank body is funnel-shaped, and the top of the inner cavity of the tank body is conical.
Preferably, the tank body and the internal pipeline are both cylindrical and are coaxially arranged.
Preferably, an exhaust port is arranged at the center of the top of the tank body. A pressure release valve is arranged in the exhaust port.
Preferably, the annular aeration device comprises an annular pipeline and a plurality of aeration heads. The annular pipe surrounds the outside of the inner pipe. A plurality of aeration heads are uniformly arranged on the upper side of the annular pipeline, and the air outlets are arranged upwards. The input port of the aeration head extends to the outside of the tank body through the annular pipeline and the air inlet pipe and is connected with an external ozone source.
Preferably, the catalyst packing layer is supported by a support plate. The edge of the bearing plate is fixed with the side wall of the secondary oxidation flow channel.
Preferably, a plurality of water through holes are uniformly formed in the bearing plate.
The utility model has the beneficial effects that:
1. the utility model combines the preliminary direct oxidation and the further catalytic oxidation in the same ozone reaction tank body; sewage is from top to bottom in the tank body, has longer water conservancy residence time, and can be fully oxidized.
2. The utility model can ensure that sewage can smoothly pass through the catalyst packing layer by pressurizing the interior of the tank body and pumping water outwards by using the lifting pump.
3. The utility model can obviously enhance the oxidation effect of ozone on organic pollutants in sewage, improve the utilization efficiency of ozone, reduce the dosage of catalyst, prolong the service life of catalytic material, reduce the volume of a reaction device, and save land and investment cost.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1, an integrated ozone gradient catalytic oxidation sewage treatment device comprises a tank 100 and an internal pipeline 200. A closed cavity is arranged in the tank body 100; the bottom of the cavity is funnel-shaped, and the top is conical. An inner pipe 200 is provided at the inner center of the cavity. The inner pipe 200 is vertically disposed. The tank 100 and the inner pipe 200 are cylindrical and are coaxially disposed. In order to make the sewage catalytic ozonation device more robust and durable, the tank 100 and the inner pipe 200 are both stainless steel casings.
The bottom end of the inner pipe 200 is fixed and sealed with the funnel surface at the bottom of the tank 100. The top end of the inner pipe 200 is provided with a trumpet-shaped guide plate 230 inclined to the outside; the inner conduit 200 divides the chamber into a primary oxidation flow path 110 outside the inner conduit 200 and a secondary oxidation flow path 210 inside the inner conduit 200. The secondary oxidation flow path 210 communicates with the primary oxidation flow path 110 only through an opening at the top of the inner pipe 200.
The bottom of the side surface of the tank body 100 is provided with a water inlet 111; the tank 100 has a water outlet 220 at the bottom center thereof and an air outlet 120 at the top center thereof. The water inlet 111 communicates with the primary oxidation flow path 110. The water outlet 220 is communicated with the secondary oxidation flow channel 210 and is connected with an external drainage pipeline through a lift pump. One or more pressure inlet ducts 130 are provided at the top of the inner cavity of the tank 100. The pressure increasing pipe 130 is connected with an external air pump through a pressure control valve, and is used for increasing the air pressure in the tank body 100 when the air pressure in the tank body 100 is insufficient; the booster pipe 130 is matched with the lift pump, and can provide assistance for sewage to smoothly permeate the catalyst filler layer 300.
A pressure relief valve is provided in the exhaust port 120 for discharging excess air or ozone when the pressure is too high, so as to avoid the pressure inside the cavity from being too high. The flowing direction of the sewage in the tank 100 is "water inlet 111 → primary oxidation flow path 110 → secondary oxidation flow path 210 → water outlet 220". A catalyst packing layer 300 is disposed at an intermediate position of the secondary oxidation flow path 210. The catalyst in catalyst packing layer 300 is used to effect catalytic oxidation of the electron-depleted pollutants by ozone.
The bottom of the primary oxidation flow path 110 is provided with an annular aeration apparatus 500. The annular aeration apparatus 500 includes an annular pipe and a plurality of aeration heads. The ring pipe surrounds the outside of the inner pipe 200. A plurality of aeration heads are uniformly arranged on the upper side of the annular pipeline, and the air outlets are arranged upwards. The annular aeration device 500 is used for inputting ozone to realize direct oxidation and catalytic oxidation of organic pollutants. The input port of the aeration head extends to the outside of the tank 100 through an annular pipe and an air inlet pipe 510, and is connected with an external ozone source.
In order to make the catalyst filler layer 300 better filled in the inner circumferential wall of the inner tube 200; a support plate 400 is fixed to a middle-lower position in the inner duct 200. Catalyst packing layer 300 rests on support plate 400. The supporting plate 400 has a plurality of water holes (not shown). By adopting the above structure, the catalyst filler layer 300 can be better filled in the inner peripheral wall of the inner pipe 200, and meanwhile, the catalyst filler layer does not drop accidentally, so that the sewage and ozone can be ensured to fully contact the catalyst filler layer 300 when flowing downwards in the secondary oxidation flow channel 210. The water holes of the support plate 400 can ensure that the sewage and the ozone smoothly pass through the support plate 400 and then are output from the water outlet 220.
To further enhance the support of the support plate 400 over the catalyst packing layer 300, in some embodiments of the present invention, the support plate 400 is made of stainless steel. In addition, the support plate 400 may be made of iron, copper or other materials with sufficient strength, depending on the actual requirements.
In order to make the catalyst packing layer 300 to better stimulate the oxidation reaction between ozone and sewage, in some embodiments of the present invention, the catalyst packing layer 300 is made of clay, activated carbon, and alumina. By adopting the structure, the catalytic action of the catalyst packing layer 300 on the oxidation reaction between ozone and sewage can be ensured, and the production cost can be reduced. The formula of the catalyst belongs to the prior art; in addition, other existing catalysts may also be used.
The working principle of the utility model is as follows:
in the present invention, the ozone source is an ozone generator or an ozone storage tank, the external ozone is continuously changed into bubbles through the air inlet pipe 510 and is conveyed into the primary oxidation flow channel 110, the ozone which is changed into bubbles is released from the annular aeration device 500 and uniformly and efficiently mixed and contacted with the sewage, thereby oxidizing the electronic-rich pollutants in the sewage in advance, and the sewage and the ozone continuously rise upward, and flow downward from the top of the secondary oxidation flow channel 210 through the catalyst filler layer 300, under the catalysis of the catalyst filler layer 300, the ozone further oxidizes the electronic-poor pollutants in the sewage, and the sewage flows downward after passing through the catalyst filler layer 300, and finally, the sewage is discharged to the outside of the tank body 100 from the drainage passage.
Since the catalyst filler layer 300 is provided on the inner circumferential wall of the inner tube 200. Therefore, no matter what flow state the sewage is, the sewage and the ozone must pass through the catalyst packing layer 300, so as to ensure the effective contact between the sewage and the ozone and the catalyst packing layer 300, and further greatly enhance the oxidation effect of the ozone on organic pollutants in the sewage, thereby ensuring that the sewage and ozone catalytic oxidation device can treat the sewage more effectively and reliably, and well meeting the requirements of users.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (7)
1. An integrated ozone gradient catalytic oxidation sewage treatment device comprises a tank body (100) and an internal pipeline (200); the method is characterized in that: an inner pipeline (200) is arranged at the central position of the inner cavity of the tank body (100); the inner pipe (200) is vertically arranged; the bottom end of the internal pipeline (200) is fixed and hermetically arranged with the bottom of the inner cavity of the tank body (100); the top end of the inner pipeline (200) is provided with a horn-shaped guide plate (230); the inner pipeline (200) divides the cavity into a primary oxidation flow passage (110) at the outer side of the inner pipeline (200) and a secondary oxidation flow passage (210) at the inner side of the inner pipeline (200); the secondary oxidation flow channel (210) is communicated with the primary oxidation flow channel (110) only through an opening at the top of the inner pipeline (200);
a water inlet (111) is formed in the bottom of the side face of the tank body (100); a water outlet (220) is arranged at the central position of the bottom of the tank body (100); the water inlet (111) is communicated with the primary oxidation flow channel (110); the water outlet (220) is communicated with the secondary oxidation flow channel (210) and is connected with an external drainage pipeline through a lift pump; one or more pressure increasing pipes (130) are arranged at the top of the inner cavity of the tank body (100); the pressure increasing pipe (130) is connected with an external air pump through a pressure control valve and is used for increasing the air pressure in the tank body (100); a catalyst filling layer (300) is arranged in the secondary oxidation flow channel (210); the bottom of the primary oxidation flow channel (110) is provided with an annular aeration device (500); the annular aeration device (500) is connected with an ozone source through an air inlet pipe (510).
2. The integrated ozone gradient catalytic oxidation sewage treatment device according to claim 1, wherein: the bottom of the inner cavity of the tank body (100) is funnel-shaped, and the top is conical.
3. The integrated ozone gradient catalytic oxidation sewage treatment device according to claim 1, wherein: the tank body (100) and the inner pipeline (200) are both cylindrical and are coaxially arranged.
4. The integrated ozone gradient catalytic oxidation sewage treatment device according to claim 1, wherein: an air outlet (120) is formed in the center of the top of the tank body (100); a pressure relief valve is arranged in the exhaust port (120).
5. The integrated ozone gradient catalytic oxidation sewage treatment device according to claim 1, wherein: the annular aeration device (500) comprises an annular pipeline and a plurality of aeration heads; the annular pipeline surrounds the outer side of the inner pipeline (200); a plurality of aeration heads are uniformly arranged on the upper side of the annular pipeline, and the air outlets are arranged upwards; the input port of the aeration head extends to the outside of the tank body (100) through an annular pipeline and an air inlet pipe (510), and is connected with an external ozone source.
6. The integrated ozone gradient catalytic oxidation sewage treatment device according to claim 1, wherein: the catalyst filler layer (300) is supported by a bearing plate (400); the edge of the bearing plate (400) is fixed with the side wall of the secondary oxidation runner (210).
7. The integrated ozone gradient catalytic oxidation sewage treatment device according to claim 6, wherein: the bearing plate (400) is uniformly provided with a plurality of water through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121940886.XU CN215627017U (en) | 2021-08-18 | 2021-08-18 | Integrated ozone step catalytic oxidation sewage treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121940886.XU CN215627017U (en) | 2021-08-18 | 2021-08-18 | Integrated ozone step catalytic oxidation sewage treatment device |
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| CN215627017U true CN215627017U (en) | 2022-01-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114684972A (en) * | 2022-04-15 | 2022-07-01 | 东华工程科技股份有限公司 | Inner loop flow ozone catalytic oxidation reactor and method for treating wastewater by using same |
| CN115353188A (en) * | 2022-08-18 | 2022-11-18 | 浙江树人学院 | Catalytic ozonation rotational flow purification device |
| CN117125863A (en) * | 2023-10-19 | 2023-11-28 | 安徽皖欣环境科技有限公司 | Advanced oxidation catalysis waste water treatment equipment |
-
2021
- 2021-08-18 CN CN202121940886.XU patent/CN215627017U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114684972A (en) * | 2022-04-15 | 2022-07-01 | 东华工程科技股份有限公司 | Inner loop flow ozone catalytic oxidation reactor and method for treating wastewater by using same |
| CN115353188A (en) * | 2022-08-18 | 2022-11-18 | 浙江树人学院 | Catalytic ozonation rotational flow purification device |
| CN115353188B (en) * | 2022-08-18 | 2023-06-13 | 浙江树人学院 | Catalytic ozonation cyclone purification device |
| CN117125863A (en) * | 2023-10-19 | 2023-11-28 | 安徽皖欣环境科技有限公司 | Advanced oxidation catalysis waste water treatment equipment |
| CN117125863B (en) * | 2023-10-19 | 2024-04-02 | 安徽皖欣环境科技有限公司 | Advanced oxidation catalysis waste water treatment equipment |
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