CN211226523U - Catalytic ozonation reactor for wastewater treatment - Google Patents
Catalytic ozonation reactor for wastewater treatment Download PDFInfo
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- CN211226523U CN211226523U CN201922209271.9U CN201922209271U CN211226523U CN 211226523 U CN211226523 U CN 211226523U CN 201922209271 U CN201922209271 U CN 201922209271U CN 211226523 U CN211226523 U CN 211226523U
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Abstract
The utility model relates to a catalytic ozonation reactor for wastewater treatment, which comprises an ozone catalytic ozonation reaction cavity, wherein an ozone catalyst packing layer is arranged in the ozone catalytic ozonation reaction cavity, a water inlet distributor and a gas-water mixed liquid distributor are arranged below the ozone catalyst packing layer, and a water outlet weir plate is arranged above the ozone catalyst packing layer; the device comprises a gas-water mixed liquid water distributor, a water outlet weir plate, a water inlet, a reflux pipe, a reflux pump, a water ejector and an ozone generator, wherein the gas inlet of the water ejector is connected with the outlet of the reflux pipe, the inlet of the reflux pipe is communicated with an ozone catalytic oxidation reaction cavity at the lower edge of the water outlet weir plate, the pipeline of the reflux pipe is provided with the reflux pump and the water ejector. The water ejector is adopted to suck ozone under negative pressure and fully mix the ozone with the wastewater, water distribution and gas distribution are carried out simultaneously, the mass transfer efficiency is high, the ozone utilization rate is high, the catalytic oxidation effect is good, and the ozone and wastewater mixing device is arranged outside the tank body, so that the maintenance is safe and convenient.
Description
Technical Field
The utility model relates to an environmental protection field, concretely relates to ozone catalytic oxidation reactor for wastewater treatment.
Background
At present, the ozone gas distribution mode of the ozone catalytic oxidation reactor adopts a micropore aerator to distribute gas, and the micropore aerator is high in failure rate, frequent in replacement, high in replacement operation difficulty and potential safety hazard due to the fact that the micropore aerator is in a high-oxidizing environment, and influences continuous wastewater treatment production. This patent adopts water dart negative pressure suction ozone and fully mixes with waste water, and water distribution and gas distribution go on simultaneously. The mass transfer efficiency is high, the ozone utilization ratio is high, the catalytic oxidation effect is good, and the ozone and wastewater mixing device is arranged outside the tank body, so that the maintenance is safe and convenient.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the catalytic ozonation reactor for wastewater treatment is provided, and the problems that the existing catalytic ozonation reactor is poor in mass transfer effect of mixed ozone and wastewater, low in ozone utilization rate, low in catalytic ozonation efficiency, serious in reactor ozone escape and heavy in ozone smell in field air are solved.
The utility model provides a technical scheme that its technical problem adopted is: a catalytic ozonation reactor for wastewater treatment comprises an ozone catalytic ozonation reaction cavity, wherein an ozone catalyst packing layer is arranged in the ozone catalytic ozonation reaction cavity, a water inlet distributor and a gas-water mixed liquid distributor are arranged below the ozone catalyst packing layer, and a water outlet weir plate is arranged above the ozone catalyst packing layer;
the device comprises a gas-water mixed liquid water distributor, a water outlet weir plate, a water inlet, a reflux pipe, a reflux pump, a water ejector and an ozone generator, wherein the gas inlet of the water ejector is connected with the outlet of the reflux pipe, the inlet of the reflux pipe is communicated with an ozone catalytic oxidation reaction cavity at the lower edge of the water outlet weir plate, the pipeline of the reflux pipe is provided with the reflux pump and the water ejector.
Furthermore, the water inlet distributor is positioned below the gas-water mixed liquid distributor.
Further, an ozone destructor is arranged at the top of the ozone catalytic oxidation reaction cavity.
Furthermore, the water inlet distributor is connected with a wastewater inlet pipe, and a water inlet pump is arranged on a pipeline of the wastewater inlet pipe.
The utility model has the advantages that:
1. the water ejector is adopted to suck ozone under negative pressure and fully mix the ozone with the wastewater, water distribution and gas distribution are carried out simultaneously, the mass transfer efficiency is high, the ozone utilization rate is high, the catalytic oxidation effect is good, and the ozone and wastewater mixing device is arranged outside the tank body, so that the maintenance is safe and convenient.
2. The water ejector sucks ozone for gas distribution under negative pressure, the equipment is simple, the fault rate is low, the maintenance is convenient, and the mixing efficiency with the wastewater is high;
3. the treated wastewater returns to the wastewater inlet layer of the reactor through backflow, and the wastewater is subjected to secondary treatment, so that the ozone reaction efficiency is improved, and the COD removal rate is improved;
4. the ozone gas distribution and the backflow coupling are cooperated, so that the stability and the practicability of the system are greatly improved.
5. The problems of high failure rate, high overhauling difficulty and poor safety of the aerator air distribution and water distribution equipment under the high oxidizing condition are solved.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a schematic view of a catalytic ozonation reactor for wastewater treatment;
the device comprises a reaction cavity for catalytic oxidation of ozone, a water inlet distributor, a water distributor for mixed gas-water mixture, a packing layer for ozone catalyst, a water outlet weir plate, a reflux pump, a water ejector, a water breaker, an ozone breaker, a water inlet pump, a water outlet pump, a water inlet pump and a water outlet weir plate, wherein the reaction cavity for catalytic oxidation of ozone, the water inlet distributor, the water distributor for water inlet.
Detailed Description
The invention will now be further described with reference to specific embodiments. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1, a catalytic ozonation reactor for wastewater treatment comprises a catalytic ozonation reaction cavity 1, an ozone catalyst packing layer 4 is arranged in the catalytic ozonation reaction cavity 1, a water inlet distributor 2 and a gas-water mixed liquid distributor 3 are arranged below the ozone catalyst packing layer 4, a water outlet weir plate 5 is arranged above the ozone catalyst packing layer 4, and treated wastewater is discharged after being collected through the water outlet weir plate 5.
The inlet of the gas-water mixed liquid water distributor 3 is connected with the outlet of a return pipe, the inlet of the return pipe is communicated with the ozone catalytic oxidation reaction cavity 1 at the lower edge of the water outlet weir plate 5, a return pump 6 and a water ejector 7 are arranged on a pipeline of the return pipe, and the air inlet of the water ejector 7 is connected with an ozone generator.
Specifically, in this embodiment, the inlet water distributor 2 is located below the gas-water mixture distributor 3.
Specifically, the top of the ozone catalytic oxidation reaction cavity 1 is provided with an ozone destructor 8. The remaining very small amount of unreacted ozone is collected by the ozone destructor 8 at the top of the reaction and is treated and discharged to the atmosphere.
Specifically, the inlet water distributor 2 is connected with a waste water inlet pipe, and a water inlet pump 9 is arranged on a pipeline of the waste water inlet pipe.
The wastewater treatment process of the wastewater treatment ozone catalytic oxidation reactor comprises the following steps:
industrial wastewater enters an ozone catalytic oxidation reaction cavity 1 of the ozone catalytic oxidation reactor through the pressurization of a water inlet pump 9 and is uniformly distributed by a water inlet distributor 2; meanwhile, the wastewater treated along the lower edge of the reactor water outlet weir plate 5 flows back to the lower end of the ozone catalyst through a pipeline and a reflux pump 6, water is distributed through a gas-water mixed liquid water distributor 3, ozone generated by an ozone generator is sucked in a negative pressure mode through a water ejector 7 arranged on a pressure pipe of the reflux pump 6, and the ozone and the wastewater are fully mixed and subjected to mass transfer; the wastewater is fully contacted and mixed with the ozone carried in the reflux liquid, and the mass transfer is high-efficient. The mixed liquid of ozone and wastewater passes through the ozone special catalyst packing layer after being evenly distributed with water, the ozone and the catalyst generate high-oxidizing substance hydroxyl free radicals through catalytic chemical reaction to oxidize and carbonize organic matters in the wastewater and degrade COD, the wastewater passes through the oxidation layer and then continues to react with the organic matters in the wastewater, and the residual very little unreacted ozone is collected by the ozone destructor 8 at the top of the reaction and then is discharged to the atmosphere. The treated wastewater is collected by the water outlet weir plate 5 and then is discharged.
The utility model discloses a waste water treatment ozone catalytic oxidation reactor adopts water dart 7 negative pressure suction ozone and with waste water intensive mixing, water distribution and gas distribution go on simultaneously, and mass transfer efficiency is high, and the ozone high-usage, catalytic oxidation is effectual, and ozone and waste water mixing arrangement set up outside the cell body, and it is safe convenient to overhaul.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. A catalytic ozonation reactor for wastewater treatment is characterized by comprising a catalytic ozonation reaction cavity, wherein an ozone catalyst packing layer is arranged in the catalytic ozonation reaction cavity, a water inlet distributor and a gas-water mixed liquid distributor are arranged below the ozone catalyst packing layer, and a water outlet weir plate is arranged above the ozone catalyst packing layer;
the device comprises a gas-water mixed liquid water distributor, a water outlet weir plate, a water ejector, a reflux pump, a water ejector and an ozone generator, wherein the inlet of the gas-water mixed liquid water distributor is connected with the outlet of the reflux pipe, the inlet of the reflux pipe is communicated with an ozone catalytic oxidation reaction cavity at the lower edge of the water outlet weir plate, the pipeline of the reflux pipe is provided with the reflux pump and.
2. The catalytic ozonation reactor for wastewater treatment according to claim 1, wherein the water inlet distributor is located below the gas-water mixture distributor.
3. The catalytic ozonation reactor for wastewater treatment according to claim 1, wherein an ozone destructor is disposed at the top of the catalytic ozonation reaction chamber.
4. The catalytic ozonation reactor for wastewater treatment according to claim 1, wherein the water inlet distributor is connected with a wastewater inlet pipe, and a water inlet pump is arranged on a pipeline of the wastewater inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922209271.9U CN211226523U (en) | 2019-12-05 | 2019-12-05 | Catalytic ozonation reactor for wastewater treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922209271.9U CN211226523U (en) | 2019-12-05 | 2019-12-05 | Catalytic ozonation reactor for wastewater treatment |
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| CN211226523U true CN211226523U (en) | 2020-08-11 |
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| CN201922209271.9U Active CN211226523U (en) | 2019-12-05 | 2019-12-05 | Catalytic ozonation reactor for wastewater treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110803758A (en) * | 2019-12-05 | 2020-02-18 | 上海环境工程设计研究院有限公司 | Catalytic ozonation reactor for wastewater treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110803758A (en) * | 2019-12-05 | 2020-02-18 | 上海环境工程设计研究院有限公司 | Catalytic ozonation reactor for wastewater treatment |
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