CN213357051U - Device for treating refractory wastewater by combining ozone and hydrogen peroxide - Google Patents
Device for treating refractory wastewater by combining ozone and hydrogen peroxide Download PDFInfo
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- CN213357051U CN213357051U CN202021576635.3U CN202021576635U CN213357051U CN 213357051 U CN213357051 U CN 213357051U CN 202021576635 U CN202021576635 U CN 202021576635U CN 213357051 U CN213357051 U CN 213357051U
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Abstract
The utility model discloses a device of difficult degradation waste water is jointly handled to ozone hydrogen peroxide solution, the device has improved the dissolution efficiency of reaction efficiency and ozone in aqueous. The utility model comprises a main reaction tower, a hydrogen peroxide adding device and an ozone generator, wherein the main reaction tower is an ozone and hydrogen peroxide catalytic oxidation reaction tower, the bottom of the tower is provided with a gas-water mixing water distributor, the middle part of the tower is an ozone catalyst packing layer and a porous tower plate, and the top of the tower is provided with a water outlet weir plate, a residual ozone collecting device and an ozone destructor; the tower bottom is provided with a water inlet which is connected with a gas-water mixing and distributing device, a water inlet pipe is connected with a hydrogen peroxide adding device and an ozone generator, the water inlet pipe is provided with a pipeline mixer and is connected with the hydrogen peroxide adding device, the water inlet pipe is provided with a dissolved air pump which is connected with the ozone generator, and a check valve is arranged between the dissolved air pump and the water inlet; the water outlet weir plate at the top of the tower is provided with a water outlet, a reflux port is arranged below the water outlet, and the water outlet is connected with a water inlet pipe between the pipeline mixer and the dissolved air pump through a pipeline.
Description
Technical Field
The utility model relates to a handle device of difficult degradation waste water, more specifically the device that a difficult degradation waste water was jointly handled to ozone hydrogen peroxide solution that says so.
Background
In industrial production and in human life, a large amount of organic sewage containing a large amount of refractory organic substances is generated, and if the refractory organic substances are not treated, the environment is greatly damaged, so that the treatment of the refractory organic substances contained in the sewage is very necessary. In order to solve the problem of treatment of high-concentration chemical wastewater, the ozone oxidation of organic pollutants is an advanced oxidation technology with mild reaction conditions, high removal efficiency and no secondary pollution, but the technology has the problems of low ozone dissolution efficiency in wastewater and poor treatment effect of degradation-resistant wastewater, so that a new device needs to be developed to solve the existing problems.
Disclosure of Invention
The utility model provides a device for treating refractory wastewater by combining ozone and hydrogen peroxide, aiming at the problems and deficiencies in the prior art, the device adopts the synergistic oxidation of the hydrogen peroxide and the ozone and adds an ozone catalyst in the device to improve the reaction efficiency and improve the treatment effect on the refractory wastewater; in addition, the dissolved air pump is used for mixing the ozone, the hydrogen peroxide and the wastewater to form dissolved air water, so that the dissolving efficiency of the ozone in the water is improved.
The utility model adopts the technical proposal that:
the utility model discloses a device for treating refractory wastewater by combining ozone and hydrogen peroxide, which comprises a main body reaction tower, a hydrogen peroxide adding device and an ozone generator, wherein the main body reaction tower is an ozone and hydrogen peroxide catalytic oxidation reaction tower, the bottom of the reaction tower is provided with a gas-water mixing water distributor, the middle part of the reaction tower is an ozone catalyst packing layer and a porous tower plate, and the top of the reaction tower is provided with a water outlet weir plate, a residual ozone collecting device and an ozone destructor; the bottom of the reaction tower is provided with a water inlet which is connected with a gas-water mixing water distributor through a water inlet pipe, the water inlet pipe is connected with a hydrogen peroxide adding device and an ozone generator which are arranged outside, the water inlet pipe is provided with a pipeline mixer and connected with the hydrogen peroxide adding device, the water inlet pipe is provided with a dissolved air pump which is connected with the ozone generator, and a check valve is arranged between the dissolved air pump and the water inlet; the water outlet weir plate at the top of the reaction tower is provided with a water outlet, a reflux port is arranged below the water outlet, and the reflux port is connected with a water inlet pipe between the pipeline mixer and the dissolved air pump through a pipeline.
The novel device for treating the difficultly-degraded wastewater by combining ozone and hydrogen peroxide has the technical scheme that the ozone catalyst packing layer and the porous tower plates are more than two layers, and the catalyst packing layer is fixed between the porous tower plates. The structure is convenient for stacking and reacting the catalyst, and the catalyst can not flow along with water flow when reacting with waste water, and the amount of the catalyst can not be reduced.
This implement neotype ozone hydrogen peroxide solution combined treatment difficult degradation waste water's device, its one-step technical scheme can also be the inlet tube on be equipped with the manometer of the pressure on the real-time supervision pipeline, the water piping connection has the vacuum to destroy the valve simultaneously. The check valve prevents the sewage from flowing back to equipment caused equipment failure, the pressure gauge monitors the pressure on the pipeline in real time, and the vacuum breaking valve prevents the siphon phenomenon caused by the overhigh return pipeline from damaging the device in a safety range.
This implement neotype ozone hydrogen peroxide solution combined treatment difficult degradation waste water's device, its operation in-process: adding hydrogen peroxide into the sewage through a pipeline mixer, and fully mixing the hydrogen peroxide with the sewage to form the sewage containing the hydrogen peroxide. Ozone generated by the ozone generator enters the dissolved air pump, hydrogen peroxide, ozone and sewage are mixed in the dissolved air pump, high-pressure dissolved air water is formed at an outlet of the dissolved air pump, and then the high-pressure dissolved air water enters the reaction tower. High-pressure gas-dissolving water in the reaction tower is uniformly distributed by a gas-water mixing gas distributor, so that sewage, hydrogen peroxide and ozone uniformly enter the ozone catalyst. The mixed water enters an ozone catalyst area through a porous tower plate and then undergoes an oxidation reaction under the condition of a catalyst. The mixed water is reacted by the two layers of catalysts and then flows out, and the outflow water enters the water outlet through the outflow weir plate. The lower end of the water outlet is provided with a return port, and sewage flows back to the water inlet through a return pipe.
The utility model has the advantages as follows:
the utility model discloses a device of difficult degradation waste water is jointly handled to ozone hydrogen peroxide solution, its hydrogen peroxide solution carries out the intensive mixing through line mixer and waste water, and ozone passes through dissolved air pump and waste water and hydrogen peroxide solution intensive mixing, through twice mixture, gets into the reaction tower through the mixed gas distributor of air water again after waste water and hydrogen peroxide solution, ozone intensive contact, and sewage and medicament misce bene have increased substantially catalytic oxidation efficiency. The technology is mature and is considered more comprehensively by adopting the combined technology of hydrogen peroxide and ozone to treat the degradation-resistant wastewater. The process greatly improves the treatment effect on the biological degradation-resistant wastewater and the degradation speed. The dissolved air pump is adopted to suck ozone under negative pressure and fully mix the ozone with the wastewater, water distribution and air distribution are carried out simultaneously, the mass transfer efficiency is high, the ozone utilization rate is high, and the catalytic oxidation effect is good.
The reaction tower is provided with a residual ozone collecting device and an ozone destructor, so that residual ozone can be completely destroyed in the reaction process, and the environment cannot be damaged; be equipped with the backward flow mouth on the main part reactor, sewage backward flow increases reaction time, and the effectual treatment effect to the difficult degradation waste water of living beings that has improved degradation speed also increases ozone, hydrogen peroxide solution utilization ratio. The ozone generator, the hydrogen peroxide adding device, the dissolved air pump and the like are arranged outside the reaction tower, so that the maintenance is convenient. The main part adopts the high tower form, takes up an area of for a short time, and gas-liquid mixture is effectual, and catalytic oxidation reaction is abundant, effectively improves the treatment effect to the difficult degradation waste water of biology, improves degradation speed, increases ozone, hydrogen peroxide solution utilization ratio, does not have secondary pollution moreover, and the operation is reliable and stable.
Ozone is sucked and distributed through the dissolved air pump under negative pressure, the equipment is simple, the failure rate is low, the maintenance is convenient, and the mixing efficiency with the wastewater is high; the treated wastewater returns to 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.
Drawings
FIG. 1 is a schematic structural view of the device for treating refractory wastewater by combining ozone and hydrogen peroxide
FIG. 2 is a top view of FIG. 1
In the figure: 1-an ozone destructor; 2-residual ozone collecting means; 3-a porous tray; 4-catalytic ozonation packing; 5-a reaction tower shell; 6-a gas-water mixing water distributor; 7-a water inlet; 8-a check valve; 9-a pressure gauge; 10-a dissolved air pump; 11-a line mixer; 12-hydrogen peroxide feeding device; 13-an ozone generator; 14-a reflux port; 15-water outlet weir plate; 16-a water outlet; 17-vacuum break valve.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in figure 1, the utility model discloses a device of difficult degradation waste water of ozone hydrogen peroxide combined treatment, including main part reaction tower (diameter 3 meters, height 10 meters), hydrogen peroxide adding device (added hydrogen peroxide concentration 30%, the quality ratio is added to hydrogen peroxide and ozone: 0.25) and ozone generator (ozone production 100g/h, operating power 1.8kw), its main part reaction tower be ozone hydrogen peroxide catalytic oxidation reaction tower, the hydrogen peroxide solution mixed water distributor is provided with at the bottom of the reaction tower, the reaction tower middle part is ozone catalyst packing layer and porous column plate, the reaction tower top is equipped with out water weir plate, surplus ozone collection device and ozone destroyer; the bottom of the reaction tower is provided with a water inlet which is connected with a gas-water mixing water distributor through a water inlet pipe, the water inlet pipe is connected with a hydrogen peroxide adding device and an ozone generator which are arranged outside, the water inlet pipe is provided with a pipeline mixer and connected with the hydrogen peroxide adding device, the water inlet pipe is provided with a dissolved air pump which is connected with the ozone generator, and a check valve is arranged between the dissolved air pump and the water inlet; the water outlet weir plate at the top of the reaction tower is provided with a water outlet, a reflux port is arranged below the water outlet, and the reflux port is connected with a water inlet pipe between the pipeline mixer and the dissolved air pump through a pipeline. The ozone catalyst packing layer is two layers, and the catalyst packing layer is fixed between the porous tower plates. The water inlet pipe is provided with a pressure gauge for monitoring the pressure on the pipeline in real time, and the water inlet pipe is connected with a vacuum breaker valve.
The utility model discloses a device for treating refractory wastewater by ozone and hydrogen peroxide jointly runs: after the pH value of the inlet water is adjusted to 7-8, the inlet water is conveyed to the inlet of the device through a pipeline, and the inlet water is mixed with hydrogen peroxide and then enters the dissolved air pump. The ozone generator works to generate ozone, the ozone is connected into the dissolved air pump through a pipeline, and the ozone is mixed under the action of the dissolved air pump to generate high-pressure dissolved air water. High-pressure gas-dissolved water uniformly enters the porous tower plate 3 through the gas-water mixing water distributor 6. The sewage containing ozone and hydrogen peroxide is subjected to catalytic oxidation reaction under the action of the ozone catalyst packing layer 4. After passing through the two layers of catalysts, the residual ozone is collected 2 by the residual ozone and enters the ozone destructor 1 for reaction and then is discharged into the atmosphere. The sewage is treated and then enters the next working procedure through the water outlet 16. And part of sewage flows back to the water inlet through the return pipe.
When the embodiment is applied, the COD of the inlet water is as follows: 2476 and after the device for treating the nondegradable wastewater by combining ozone and hydrogen peroxide is adopted, the COD1064.68 is removed with a COD removal rate of 54%.
Claims (3)
1. A device for treating refractory wastewater by combining ozone and hydrogen peroxide comprises a main reaction tower, a hydrogen peroxide feeding device and an ozone generator, and is characterized in that the main reaction tower is an ozone and hydrogen peroxide catalytic oxidation reaction tower, the bottom of the reaction tower is provided with a gas-water mixing water distributor, the middle part of the reaction tower is provided with an ozone catalyst packing layer and a porous tower plate, and the top of the reaction tower is provided with a water outlet weir plate, a residual ozone collecting device and an ozone destructor; the bottom of the reaction tower is provided with a water inlet which is connected with a gas-water mixing water distributor through a water inlet pipe, the water inlet pipe is connected with a hydrogen peroxide adding device and an ozone generator which are arranged outside, the water inlet pipe is provided with a pipeline mixer and connected with the hydrogen peroxide adding device, the water inlet pipe is provided with a dissolved air pump which is connected with the ozone generator, and a check valve is arranged between the dissolved air pump and the water inlet; the water outlet weir plate at the top of the reaction tower is provided with a water outlet, a reflux port is arranged below the water outlet, and the reflux port is connected with a water inlet pipe between the pipeline mixer and the dissolved air pump through a pipeline.
2. The device for treating refractory wastewater by combining ozone and hydrogen peroxide as claimed in claim 1, wherein the ozone catalyst packing layer and the porous tower plates are more than two layers, and the catalyst packing layer is fixed between the porous tower plates.
3. The device for jointly treating refractory wastewater by ozone and hydrogen peroxide as claimed in claim 1, wherein the water inlet pipe is provided with a pressure gauge for monitoring the pressure on the pipeline in real time, and the water inlet pipe is connected with a vacuum breaker.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021576635.3U CN213357051U (en) | 2020-08-03 | 2020-08-03 | Device for treating refractory wastewater by combining ozone and hydrogen peroxide |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021576635.3U CN213357051U (en) | 2020-08-03 | 2020-08-03 | Device for treating refractory wastewater by combining ozone and hydrogen peroxide |
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| CN213357051U true CN213357051U (en) | 2021-06-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115108622A (en) * | 2022-08-19 | 2022-09-27 | 瑞蓝科环保工程技术有限公司 | Ozone catalytic oxidation tower |
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2020
- 2020-08-03 CN CN202021576635.3U patent/CN213357051U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115108622A (en) * | 2022-08-19 | 2022-09-27 | 瑞蓝科环保工程技术有限公司 | Ozone catalytic oxidation tower |
| CN115108622B (en) * | 2022-08-19 | 2023-01-24 | 瑞蓝科环保工程技术有限公司 | Ozone catalytic oxidation tower |
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