CN218755220U - Ozone catalytic oxidation device for wastewater treatment - Google Patents
Ozone catalytic oxidation device for wastewater treatment Download PDFInfo
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- CN218755220U CN218755220U CN202222879000.6U CN202222879000U CN218755220U CN 218755220 U CN218755220 U CN 218755220U CN 202222879000 U CN202222879000 U CN 202222879000U CN 218755220 U CN218755220 U CN 218755220U
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Abstract
The utility model provides an ozone catalytic oxidation device that waste water treatment used, it includes ozone catalytic oxidation tower body, and ozone catalytic oxidation tower body comprises last tower body and lower tower body, is provided with the catalysis packing layer between last tower body and lower tower body, tower body one side is provided with the inlet channel down, and its bottom is provided with an ozone and throws feeder apparatus, and this ozone throws feeder apparatus's one end and is connected with ozone generator, and in the other end throws the feeder pump through catalytic oxidation and is connected to supreme tower body, and the water reflux in going up the tower body is thrown to ozone and is added the device in with ozone generator in the ozone and mix, leads to into down in the tower body after forming small bubble, the top of going up the tower body is provided with outlet conduit and tail gas ozone treatment device. The utility model can greatly increase the contact time of the waste water and the catalyst and improve the utilization rate of the ozone.
Description
Technical Field
The utility model relates to an ozone catalytic oxidation device for wastewater treatment, which belongs to the technical field of wastewater treatment.
Background
A large amount of wastewater is generated in the production processes of industries such as printing and dyeing, papermaking, coal chemical industry and the like, and the industrial wastewater generally contains a large amount of substances with high COD (chemical oxygen demand), low biodegradability and even activated sludge inhibition. For the wastewater, the increasingly strict wastewater discharge standard is difficult to achieve by adopting the traditional primary treatment and secondary treatment. The catalytic ozonation method is one of advanced oxidations, and is widely applied to scenes such as pretreatment for breaking macromolecular organic matters before biochemical treatment, advanced wastewater treatment and upgrading, wastewater recycling and concentrated water treatment and the like because of strong oxidizing capability, no secondary pollution, simple operation and the like.
However, the traditional ozone catalytic oxidation mostly adopts a water ejector to suck ozone and mix with wastewater under negative pressure, so that the gas-water mixing effect is poor, and the ozone utilization rate is low. In order to solve the problems, the ozone catalytic oxidation device for the wastewater is provided, and the ozone efficient feeding device is adopted to improve the gas-water mixing effect, increase the contact time of the wastewater and the catalyst and improve the ozone utilization rate.
Disclosure of Invention
The utility model provides a simple structure adopts ozone high efficiency to throw feeder apparatus and improves the air water mixing effect, increases the contact time of waste water and catalyst, improves the ozone catalytic oxidation device that ozone utilization ratio's waste water treatment used.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an ozone catalytic oxidation device that waste water treatment used, it includes ozone catalytic oxidation tower body, ozone catalytic oxidation tower body comprises last tower body and lower tower body, is provided with the catalysis packing layer between last tower body and lower tower body, tower body one side is provided with the inlet channel down, and its bottom is provided with an ozone and throws feeder apparatus, and this ozone throws feeder apparatus's one end and is connected with ozone generator, and in the other end throws the feeder pump through catalytic oxidation and is connected supreme tower body, and the water reflux in going up the tower body is thrown to ozone and is installed in with ozone generator in the ozone and produce and mix, leads to into down in the tower body after forming small bubble, the top of going up the tower body is provided with outlet conduit and tail gas ozone treatment device.
Preferably, the method comprises the following steps: still be provided with the water purification pipeline of taking the backwash pump and take the admission line of blower in the tower body down, the water and the gas back flush catalytic packing layer that produce between water purification pipeline and the admission line, the backwash outlet of seting up on the last tower body is discharged again, lets whole tower body internal clean to the phenomenon of blockking up and hardening appears in the effectual packing layer that prevents.
Preferably, the method comprises the following steps: the filler in the catalytic filler layer is an activated carbon-based filler, and active components of Fe and Mn transition metals are loaded on the surface of an activated carbon carrier on the activated carbon-based filler.
Compared with the traditional water jet dosing device, the ozone efficient dosing device can form micro-nano bubbles, and is matched with a water distribution and gas distribution system at the bottom of the oxidation tower, so that the air-water mixing effect and the mass transfer efficiency of ozone are improved, and the utilization rate of ozone is improved; the bottom water distribution and gas distribution system also avoids ozone from overflowing from holes near the main pipeline to a certain extent, and ozone flows through the oxidation tower uniformly, so that the contact time between the wastewater and the catalyst filler is prolonged, and the catalytic oxidation effect is improved.
The catalyst filler adopted by the device is an active carbon-based filler, namely, active components of transition metals such as Fe, mn and the like are selectively loaded on the surface of the active carbon carrier, so that the problems of secondary pollution of water and incapability of recycling after metal ion reaction caused by leaching of the traditional metal ion catalyst are solved. The activated carbon base uses high-quality activated carbon with high iodine value, strong adsorption capacity and good wear-resisting strength as a carrier, and the prepared catalyst has a large specific surface area and a proper pore structure, so that the contact time of wastewater and a catalyst filler is prolonged, and the treatment effect is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto. As shown in fig. 1, an ozone catalytic oxidation device for wastewater treatment, it includes ozone catalytic oxidation tower body 1, ozone catalytic oxidation tower body 1 comprises last tower body 2 and lower tower body 3, is provided with catalytic packing layer 4 between last tower body 2 and lower tower body 3, tower body 3 one side is provided with inlet channel 5 down, and its bottom is provided with an ozone dosing unit 6, and this ozone dosing unit 6's one end is connected with ozone generator 7, and the other end throws with pump 8 through catalytic oxidation and is connected to in the last tower body 2, mixes the water backward flow in last tower body 2 to ozone dosing unit 6 with the ozone that produces in ozone generator 7, leads to under into in the tower body 3 after forming the small bubble, the top of going up tower body 2 is provided with outlet conduit 9 and tail gas ozone treatment device 10.
Still be provided with the water purification pipeline 12 of taking backwash pump 11 and the admission line 14 of taking blower 13 in the lower tower body 3, the gas and water back flush catalysis packing layer 4 that produces between water purification pipeline 12 and the admission line 14, the backwash outlet 15 of seting up on the follow upper tower body 2 discharges again, lets whole tower internal clean to the jam and the phenomenon that hardens appear in the effectual packing layer that prevents.
The filler in the catalytic filler layer 4 is an activated carbon-based filler, and active components of Fe and Mn transition metals are loaded on the surface of an activated carbon carrier on the activated carbon-based filler.
The working process of the utility model is as follows:
the ozone generator utilizes discharge to prepare ozone by taking oxygen or air as a raw material, the prepared ozone is introduced into the ozone efficient feeding device, the water fed into the ozone efficient feeding device adopts part of backflow water after catalytic oxidation of the ozone, the backflow water and the ozone are uniformly mixed in the device to form micro bubbles and are introduced into the water inlet system, and the wastewater and ozone mixed water uniformly enter the main reaction system through the water distribution device of the water inlet system. The main body reaction system mainly comprises an ozone catalytic oxidation tower, catalytic filler is arranged in the oxidation tower, the surface of the catalyst has unbalanced potential difference, hydroxyl free radicals are generated by excitation under the action of the catalyst, the oxidation-reduction potential of the hydroxyl free radicals is E0=2.8eV, and most of organic matters which are difficult to degrade are subjected to chain scission reaction under the action of the high oxidation potential to form short-chain organic matters or are directly oxidized to CO2 and H2O. The ozone which does not participate in the reaction is discharged from a tail gas pipe at the top of the catalytic tower and is led to a matched tail gas ozone treatment system so as to prevent the overflowed ozone from damaging the atmospheric environment. After the ozone catalytic oxidation tower runs for a period of time, a backwashing system is required to be started regularly, the backwashing system mainly comprises water backwashing and gas backwashing, gas and water enter from a water distribution and gas distribution system at the bottom of the oxidation tower, a catalytic packing layer is backwashed, the phenomenon of blockage and hardening of the packing layer is prevented, active sites on the surface of the catalyst are recovered, and the service cycle of the ozone catalyst is prolonged.
The preferred embodiment of the present invention is only used to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best utilize the invention. The present invention is limited only by the claims and their full scope and equivalents. The above disclosure is only for the purpose of describing several embodiments of the present application, but the present application is not limited thereto, and any variations that can be considered by those skilled in the art are intended to fall within the scope of the present application.
Claims (3)
1. The utility model provides an ozone catalytic oxidation device that waste water treatment used, it includes ozone catalytic oxidation tower body, its characterized in that: ozone catalytic oxidation tower body comprises last tower body and lower tower body, is provided with the catalytic packing layer between last tower body and lower tower body, tower body one side is provided with the inlet channel down, and its bottom is provided with an ozone and throws feeder apparatus, and this ozone is thrown feeder apparatus's one end and is connected with ozone generator, and the other end is thrown through catalytic oxidation and is thrown in the pump is connected to supreme tower body, and the water reflux in the tower body to ozone throw with the device in with ozone generator in the ozone mix, form in leading to the tower body down of entering behind the small bubble, the top of going up the tower body is provided with outlet conduit and tail gas ozone treatment device.
2. The catalytic ozonation device for treating wastewater according to claim 1, wherein: still be provided with the water purification pipeline of taking the backwash pump and the admission line of taking the blower in the tower body down, the water and the gas back flush catalysis packing layer that produce between water purification pipeline and the admission line, the backwash outlet of seting up on the last tower body is discharged again, lets whole tower internal clean to the effectual packing layer that prevents appears blockking up and the phenomenon that hardens.
3. The catalytic ozonation device for treatment of wastewater according to claim 1 or 2, wherein: the filler in the catalytic filler layer is an activated carbon-based filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222879000.6U CN218755220U (en) | 2022-10-31 | 2022-10-31 | Ozone catalytic oxidation device for wastewater treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222879000.6U CN218755220U (en) | 2022-10-31 | 2022-10-31 | Ozone catalytic oxidation device for wastewater treatment |
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| Publication Number | Publication Date |
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| CN218755220U true CN218755220U (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222879000.6U Active CN218755220U (en) | 2022-10-31 | 2022-10-31 | Ozone catalytic oxidation device for wastewater treatment |
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| CN (1) | CN218755220U (en) |
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- 2022-10-31 CN CN202222879000.6U patent/CN218755220U/en active Active
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