CN219637003U - Device for improving biodegradability of coking wastewater by utilizing tail gas of ozone catalytic oxidation tower - Google Patents
Device for improving biodegradability of coking wastewater by utilizing tail gas of ozone catalytic oxidation tower Download PDFInfo
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- CN219637003U CN219637003U CN202320682541.1U CN202320682541U CN219637003U CN 219637003 U CN219637003 U CN 219637003U CN 202320682541 U CN202320682541 U CN 202320682541U CN 219637003 U CN219637003 U CN 219637003U
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- coking wastewater
- residual oxygen
- oxygen release
- catalytic oxidation
- tail gas
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- 239000002351 wastewater Substances 0.000 title claims abstract description 75
- 238000004939 coking Methods 0.000 title claims abstract description 73
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 36
- 230000003647 oxidation Effects 0.000 title claims abstract description 36
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 36
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000001301 oxygen Substances 0.000 claims abstract description 65
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 65
- 239000007789 gas Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000003054 catalyst Substances 0.000 claims abstract description 19
- 238000012856 packing Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 2
- 238000006864 oxidative decomposition reaction Methods 0.000 abstract description 2
- 239000000945 filler Substances 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000010525 oxidative degradation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model relates to a device for improving biodegradability of coking wastewater by utilizing tail gas of an ozone catalytic oxidation tower, which is characterized in that a residual oxygen release reactor is additionally arranged at a water inlet end of a coking wastewater oil removal tank, a tail gas exhaust pipe of the ozone catalytic oxidation tower is connected with a gas inlet at the bottom of the residual oxygen release reactor, a water inlet at the bottom of the residual oxygen release reactor is connected with a coking wastewater pipeline, a catalyst packing layer is arranged in the residual oxygen release reactor, a water outlet pipe is arranged at the top of the residual oxygen release reactor, and the water outlet pipe is led into the coking wastewater oil removal tank. The utility model utilizes the residual ozone in the tail gas of the ozone catalytic oxidation tower to fully react with the coking wastewater, realizes the oxidative decomposition of the COD of the raw water of the coking wastewater, and improves the biodegradability of the coking wastewater. The utilization of residual ozone in the tail gas of the ozone catalytic oxidation tower is realized. And adverse effects on the surrounding environment and operators caused by ozone dissipation in the tail gas of the ozone catalytic oxidation tower are avoided.
Description
Technical Field
The utility model relates to coking wastewater treatment, in particular to a device for improving the biodegradability of coking wastewater by utilizing tail gas of an ozone catalytic oxidation tower.
Background
Ozone is a strong oxidant, the oxidation-reduction potential of the ozone in water is 2.07V, the ozone is used in the aspect of industrial sewage treatment, the effects of deodorizing, decoloring and oxidizing and degrading organic matters can be well achieved, and the decomposition products of the ozone cannot cause secondary pollution, so that the ozone is used as a clean energy source to be widely applied to the sewage treatment industry. The ozone catalytic oxidation tower is a common reaction device for ozone and sewage in industry. However, because the manufacturing cost of ozone is high, and the ozone can not realize 100% reaction and conversion with organic matters in the ozone catalytic oxidation tower, the tail gas of the catalytic oxidation tower is usually treated by using a tail gas destructor, and the recycling of residual ozone in the tail gas can not be realized.
CN107720927a is an ozone catalytic oxidation and tail gas comprehensive utilization system, including the oxygen air supply, gas mixer, air compressor machine, ozone generator, ozone catalytic oxidation reactor, ozone destructor, gas drying device and the gas adsorption equipment that pass through the pipe connection in proper order, ozone generator with ozone catalytic oxidation reactor's side lower part passes through the pipe connection, ozone catalytic oxidation reactor's top with ozone destructor passes through the pipe connection, gas adsorption equipment's gas vent with gas mixer's air inlet passes through the pipe connection. The device uses newly built equipment, and is difficult to reform the construction equipment limited by sites and processes.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a device for improving the biodegradability of coking wastewater by utilizing the tail gas of an ozone catalytic oxidation tower, so that the reutilization of residual ozone in the tail gas is realized, and meanwhile, the inlet water of an oil removal tank of the coking wastewater is treated, so that the biodegradability of the wastewater is improved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
utilize ozone catalytic oxidation tower tail gas to improve coking wastewater biodegradability's device, coking wastewater is discharged into coking wastewater oil removal pond from the coking wastewater pipeline, its characterized in that adds the residual oxygen release reactor at coking wastewater oil removal pond's water inlet end, the air inlet of residual oxygen release reactor bottom is connected with ozone catalytic oxidation tower's tail gas blast pipe, the water inlet of residual oxygen release reactor bottom is connected with coking wastewater pipeline, the inside catalyst packing layer that is equipped with of residual oxygen release reactor, residual oxygen release reactor top is equipped with the outlet pipe, and the outlet pipe lets in coking wastewater oil removal pond.
The bottom of the residual oxygen release reactor is provided with an emptying pipe which is communicated with the coking wastewater oil removal tank.
The water outlet pipe is inserted into the coking wastewater oil removal tank below 0.5 m.
The catalyst filler layer comprises an upper screen and a lower screen, ozone catalyst filler is filled between the upper screen and the lower screen, and ball filler is filled between the lower screen and the bottom surface of the residual oxygen release reactor.
The distance between the upper screen and the top surface of the residual oxygen release reactor is 0.3-0.4m.
The distance between the upper screen and the lower screen is 0.7-0.8m.
The distance between the lower screen and the bottom surface of the residual oxygen release reactor is 0.5-0.6m.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model utilizes the residual ozone in the tail gas of the ozone catalytic oxidation tower to fully react with the coking wastewater, and breaks the chain and opens the ring of long-chain and annular organic matters in the wastewater, thereby realizing the oxidative decomposition of the raw water COD of the coking wastewater and further improving the biodegradability of the coking wastewater. And can realize the decolorization and deodorization of the coking wastewater raw water. The utilization of residual ozone in the tail gas of the ozone catalytic oxidation tower is realized. And adverse effects on the surrounding environment and operators caused by ozone dissipation in the tail gas of the ozone catalytic oxidation tower are avoided.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic diagram of the structure of the residual oxygen releasing reactor.
In the figure: the device comprises an ozone catalytic oxidation tower 1, a residual oxygen release reactor 2, a coking wastewater oil removal tank 3, a coking wastewater pipeline 4, a water inlet 5, an air inlet 6, a catalyst filler layer 7, a water outlet pipe 8, an emptying pipe 9, an upper screen 10, a lower screen 11, ozone catalyst filler 12 and ball filler 13.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
As shown in figure 1, the device for improving the biodegradability of the coking wastewater by utilizing the tail gas of the ozone catalytic oxidation tower is characterized in that the coking wastewater is discharged into a coking wastewater oil removal tank 3 from a coking wastewater pipeline 4, a residual oxygen release reactor 2 is additionally arranged at the water inlet end of the coking wastewater oil removal tank 3, an air inlet 6 at the bottom of the residual oxygen release reactor 2 is connected with a tail gas exhaust pipe of the ozone catalytic oxidation tower 1, a water inlet 5 at the bottom of the residual oxygen release reactor 2 is connected with the coking wastewater pipeline 4, a catalyst filler layer 7 is arranged in the residual oxygen release reactor 2, a water outlet pipe 8 is arranged at the top of the residual oxygen release reactor 2, and the water outlet pipe 8 is led into the coking wastewater oil removal tank 3. The bottom of the residual oxygen release reactor 2 is provided with an emptying pipe 9 which is communicated with the coking wastewater oil removal tank 3.
The water outlet pipe 8 is inserted into the coking wastewater oil removal tank 3 below 0.5 m.
The catalyst filler layer 7 comprises an upper screen 10 and a lower screen 11, an ozone catalyst filler 12 is filled between the upper screen 10 and the lower screen 11, and a ball filler 13 with the diameter of 30-40mm is filled between the lower screen 11 and the bottom surface of the residual oxygen release reactor 2.
The distance between the upper screen 10 and the top surface of the residual oxygen release reactor 2 is 0.3-0.4m.
The distance between the upper screen 10 and the lower screen 11 is 0.7-0.8m.
The distance between the lower screen 11 and the bottom surface of the residual oxygen release reactor 2 is 0.5-0.6m.
The distance between the water inlet 5 and the bottom surface of the residual oxygen release reactor 2 is 0.3-0.35m.
The distance between the air inlet 6 and the bottom surface of the residual oxygen release reactor 2 is 0.1-0.2m.
The distance between the water outlet pipe 8 and the top surface of the residual oxygen release reactor 2 is 0.2-0.3m.
The tail gas of the catalytic oxidation tower and the coking wastewater are fully mixed and distributed in the residual oxygen release reactor through the lower environment-friendly ball filler, then organic matters in the coking wastewater are subjected to oxidative degradation under the action of the ozone catalyst filler, and finally the reacted wastewater and gas mixture is discharged into a coking wastewater oil removal tank through a water outlet pipe at the top, and the organic matters can be further subjected to oxidative degradation in the coking wastewater oil removal tank by not utilizing complete ozone.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model. In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further. Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.
In order to make the purposes, technical schemes and technical effects of the utility model clearer, the technical schemes in the embodiments of the utility model are clearly and completely described. The embodiments described below are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art without the benefit of the teachings of this utility model, are intended to be within the scope of the utility model.
Example 1
Utilize ozone catalytic oxidation tower tail gas to improve coking wastewater biodegradability's device, coking wastewater is discharged into coking wastewater oil removal pond 3 from coking wastewater pipeline 4, adds residual oxygen release reactor 2 at coking wastewater oil removal pond 3's water inlet end, and residual oxygen release reactor 2 is cylindrical structure, and the size is: 1500mm in diameter and 1750mm in height. An air inlet 6 at the bottom of the residual oxygen release reactor 2 is connected with an exhaust pipe of the ozone catalytic oxidation tower 1, and the distance between the air inlet 6 and the bottom surface of the residual oxygen release reactor 2 is 0.2m. The water inlet 5 at the bottom of the residual oxygen release reactor 2 is connected with the coking wastewater pipeline 4, and the distance between the water inlet 5 and the bottom surface of the residual oxygen release reactor 2 is 0.3m.
The inside of the residual oxygen release reactor 2 is provided with a catalyst filler layer 7, the top of the residual oxygen release reactor 2 is provided with a water outlet pipe 8, and the water outlet pipe 8 is led into the coking wastewater oil removal tank 3. The water outlet pipe 8 is 0.3m away from the top surface of the residual oxygen release reactor 2, and the water outlet pipe 8 is inserted into the coking wastewater oil removal tank 3 for 0.6m below the liquid surface. The bottom of the residual oxygen release reactor 2 is provided with an emptying pipe 9 which is communicated with the coking wastewater oil removal tank 3.
The catalyst filler layer comprises an upper screen 10 and a lower screen 11, an ozone catalyst filler 12 is filled between the upper screen 10 and the lower screen 11, and a PVC environment-friendly ball filler with the diameter of 35m is filled between the lower screen 11 and the bottom surface of the residual oxygen release reactor 2.
The distance of the upper screen 10 from the top surface of the residual oxygen releasing reactor 2 was 0.35m. The distance between the upper screen 10 and the lower screen 11 was 0.8m. The distance of the lower screen 11 from the bottom surface of the residual oxygen releasing reactor 2 was 0.6m.
Example 2
Utilize ozone catalytic oxidation tower tail gas to improve coking wastewater biodegradability's device, coking wastewater is discharged into coking wastewater oil removal pond 3 from coking wastewater pipeline 4, adds residual oxygen release reactor 2 at coking wastewater oil removal pond 3's water inlet end, and residual oxygen release reactor 2 is cylindrical structure, and the size is: diameter 1500mm and height 1780mm. The tail gas exhaust pipe of the ozone catalytic oxidation tower 1 is connected with the air inlet 6 at the bottom of the residual oxygen release reactor 2, and the distance between the air inlet 6 and the bottom surface of the residual oxygen release reactor 2 is 0.25m. The water inlet 5 at the bottom of the residual oxygen release reactor 2 is connected with the coking wastewater pipeline 4, and the distance between the water inlet 5 and the bottom surface of the residual oxygen release reactor 2 is 0.35m.
The inside of the residual oxygen release reactor 2 is provided with a catalyst filler layer 7, and the top of the residual oxygen release reactor 2 is provided with a water outlet pipe 8 which is led into the coking wastewater oil removal tank 3. The water outlet pipe 8 is 0.3m away from the top surface of the residual oxygen release reactor 2, and the water outlet pipe 8 is inserted into the coking wastewater oil removal tank 3 for 0.65m below the liquid surface. The bottom of the residual oxygen release reactor 2 is provided with an emptying pipe 9 which is communicated with the coking wastewater oil removal tank 3.
The catalyst filler layer comprises an upper screen 10 and a lower screen 11, an ozone catalyst filler 12 is filled between the upper screen 10 and the lower screen 11, and a PVC environment-friendly ball filler with the diameter of 30mm is filled between the lower screen 11 and the bottom surface of the residual oxygen release reactor 2.
The distance of the upper screen 10 from the top surface of the residual oxygen releasing reactor 2 was 0.3m. The distance between the upper screen 10 and the lower screen 11 was 0.75m. The distance of the lower screen 11 from the bottom surface of the residual oxygen releasing reactor 2 was 0.6m.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Utilize ozone catalytic oxidation tower tail gas to improve coking wastewater biodegradability's device, coking wastewater is discharged into coking wastewater oil removal pond from the coking wastewater pipeline, its characterized in that adds the residual oxygen release reactor at coking wastewater oil removal pond's water inlet end, the air inlet of residual oxygen release reactor bottom is connected with ozone catalytic oxidation tower's tail gas blast pipe, the water inlet of residual oxygen release reactor bottom is connected with coking wastewater pipeline, the inside catalyst packing layer that is equipped with of residual oxygen release reactor, the catalyst packing layer includes screen cloth, lower screen cloth, fills ozone catalyst packing between screen cloth and the lower screen cloth, fills ball packing between lower screen cloth and the residual oxygen release reactor bottom surface, residual oxygen release reactor top is equipped with the outlet pipe, and the outlet pipe lets in coking wastewater oil removal pond.
2. The device for improving the biodegradability of the coking wastewater by utilizing the tail gas of the ozone catalytic oxidation tower according to claim 1, wherein the bottom of the residual oxygen release reactor is provided with an emptying pipe which is communicated with the coking wastewater oil removal tank.
3. The device for improving the biodegradability of the coking wastewater by utilizing the tail gas of the ozone catalytic oxidation tower according to claim 1, wherein the water outlet pipe is inserted into the liquid level of the coking wastewater oil removal tank for less than 0.5 m.
4. The apparatus for improving the biodegradability of coking wastewater by utilizing tail gas of an ozone catalytic oxidation tower according to claim 1, wherein the distance from the upper screen to the top surface of the residual oxygen release reactor is 0.3-0.4. 0.4m.
5. The apparatus for improving the biodegradability of coking wastewater by utilizing an ozone catalytic oxidation tower tail gas according to claim 1, wherein the distance between the upper screen and the lower screen is 0.7-0.8m.
6. The apparatus for improving the biodegradability of coking wastewater by utilizing the tail gas of an ozone catalytic oxidation tower according to claim 1, wherein the distance from the lower screen to the bottom surface of the residual oxygen release reactor is 0.5-0.6. 0.6m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320682541.1U CN219637003U (en) | 2023-03-30 | 2023-03-30 | Device for improving biodegradability of coking wastewater by utilizing tail gas of ozone catalytic oxidation tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320682541.1U CN219637003U (en) | 2023-03-30 | 2023-03-30 | Device for improving biodegradability of coking wastewater by utilizing tail gas of ozone catalytic oxidation tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219637003U true CN219637003U (en) | 2023-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320682541.1U Active CN219637003U (en) | 2023-03-30 | 2023-03-30 | Device for improving biodegradability of coking wastewater by utilizing tail gas of ozone catalytic oxidation tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219637003U (en) |
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- 2023-03-30 CN CN202320682541.1U patent/CN219637003U/en active Active
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