CN215798668U - External circulation ozone oxidation waste water device - Google Patents
External circulation ozone oxidation waste water device Download PDFInfo
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- CN215798668U CN215798668U CN202120512777.1U CN202120512777U CN215798668U CN 215798668 U CN215798668 U CN 215798668U CN 202120512777 U CN202120512777 U CN 202120512777U CN 215798668 U CN215798668 U CN 215798668U
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Abstract
The utility model belongs to the environment-friendly wastewater treatment technology, and particularly relates to an external circulation ozone oxidation wastewater device. The device has the advantages of simple overall structure, small occupied area and good stability.
Description
Technical Field
The utility model belongs to an environment-friendly wastewater treatment technology, and particularly relates to an external circulation ozone wastewater oxidation device.
Background
Ozone has strong oxidizability and bactericidal performance, is one of the strongest oxidants in the nature, and has the second place oxidation-reduction potential second to fluorine in water. Meanwhile, the product after the ozone reaction is oxygen, so that the ozone is an efficient oxidant without secondary pollution. As a strong oxidant, the characteristics are as follows: the method can be used for selective oxidation, and the yield of main products is high; the oxidation temperature is low, the oxidation capability is strong under normal pressure, and the oxidation of sensitive substances is facilitated; the reaction speed is high, and quantitative oxidation can be realized; and fourthly, the use and the manufacture are convenient. Ozone reacts with organic unsaturates to produce ozonides, which can be decomposed in the presence of water to chain open the original unsaturated bonds to produce aldehydes, ketones, carboxylic acids, and the like.
At present, the ozone aeration oxidation tower has the characteristics of simple structure, low maintenance cost and the like, and is widely used, but the main reasons of high tail gas concentration, low ozone utilization rate, high cost and certain waste in operation are also high. Therefore, the development of the oxidation device for improving the utilization rate of the ozone has good application prospect.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides an external circulation ozone oxidation wastewater device, aiming at solving the technical problems of high cost and operation waste caused by high concentration of tail gas of an ozone aeration oxidation tower and low ozone utilization rate in the prior art.
The utility model provides an external circulation ozone oxidation wastewater device, which has the following specific technical scheme:
the outer circulation ozone oxidation wastewater device comprises an ozone reaction column, a gas-liquid separation tank and an ejector, wherein an ozone generator is connected to the bottom of the ozone reaction column, the top of the gas-liquid separation tank is communicated with the top of the ozone reaction column, the bottom of the gas-liquid separation tank is connected with a water inlet of the ejector, and a water outlet of the ejector is communicated with the top of the ozone reaction column. The effluent and the ozone tail gas of the ozone reaction column are collected and separated by the gas-liquid separation tank and then mixed with the ejector, so that the ozone tail gas can be reused, and the ozone utilization efficiency is improved.
In some embodiments, the ozone generator is connected with an ozone aeration head, the ozone aeration head is arranged at the bottom in the ozone reaction column, and the bottom in the ozone reaction column discharges water. Microporous bubbles are blown out through the microporous membrane on the ozone aeration head, and are uniformly diffused in the whole ozone reaction column, so that the effect of increasing the concentration of ozone through aeration is achieved after the microporous bubbles are fully mixed.
In certain embodiments, the liquid level of the knockout drum is 1/3-2/3 of the height of the knockout drum. Thus, a certain amount of ozone gas is ensured, no air inlet of the ejector is prevented, the liquid level is not too low, and the booster pump is prevented from idling
In some embodiments, the top of the gas-liquid separation tank is connected with a pressure reducing valve, the inside of the gas-liquid separation tank is provided with a liquid level controller, and the bottom of the gas-liquid separation tank is also connected with an electric ball valve; the gas-liquid separation tank is exhausted through the pressure reducing valve; and the gas-liquid separation tank is used for discharging water through the electric ball valve. The liquid level of the wastewater in the gas-liquid separation tank is controlled to be 1/3-2/3 of the height of the gas-liquid separation tank through a liquid level controller, when the liquid level is higher than 2/3 of the height of the gas-liquid separation tank, an electric ball valve is opened, and when the liquid level is lower than 1/3 of the height of the gas-liquid separation tank, the ball valve is closed.
Specifically, the pressure relief pressure value of the pressure relief valve is 0.7-1.0 MPa. Can meet the air inlet requirement of the ejector under certain pressure condition
In some embodiments, the pressure at the water inlet of the ejector is 0.2-0.8 MPa. Thus, the ejector is ensured to have good gas-liquid mixing effect
In certain embodiments, the device further comprises a booster pump, and the bottom of the gas-liquid separation tank is connected with the water inlet of the ejector through the booster pump.
In some embodiments, the ozone reaction column has a height to diameter ratio of 10:1 to 15: 1. Thus, the ejector is ensured to have good gas-liquid mixing effect under the pressure
In some embodiments, the gas-liquid separation tank has an aspect ratio of 2:1 to 5: 1. Therefore, the normal work of the liquid level controller is ensured.
The utility model has the following beneficial effects: according to the external circulation ozone oxidation wastewater device provided by the utility model, the effluent and the ozone tail gas of the ozone reaction column are collected and separated through the gas-liquid separation tank, and then are mixed with the ejector, so that the ozone tail gas can be reused, the ozone utilization efficiency is improved, the top of the gas-liquid separation tank is provided with the pressure release valve to ensure the internal air pressure to be balanced, the bottom of the gas-liquid separation tank is provided with the electric ball valve, the opening and closing of the gas-liquid separation tank are controlled by the liquid level controller inside the gas-liquid separation tank to ensure the liquid level, and the treated effluent is discharged. The device has the advantages of simple overall structure, small occupied area and good stability.
Drawings
FIG. 1 is a schematic structural diagram of an external circulation ozone wastewater oxidation device provided in embodiment 1 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
Example 1
The outer circulation ozone oxidation waste water device that this embodiment provided, specific technical scheme is as follows:
referring to fig. 1, the MBR effluent of the biochemical tank of the sewage treatment plant according to the embodiment of the present invention includes an ozone reaction column 101, a gas-liquid separation tank 102, an ozone generator 201, an ozone aeration head 202, an electric ball valve 203, a liquid level controller 204, a pressure reducing valve 205, an ejector 206, and a booster pump 207. All the parts are connected through pipelines, an ozone generator 201 is connected with the bottom of an ozone reaction column 101, the bottom of the ozone reaction column 101 is connected with the bottom of an ozone aeration head 202, the top of the ozone reaction column 101 is connected with the top of a gas-liquid separation tank 102, the bottom of the gas-liquid separation tank 102 is connected with an inlet of a booster pump 207, an outlet of the booster pump 207 is connected with a water inlet of an ejector 206, a gas inlet in the middle of the ejector 206 is connected with the upper part of the gas-liquid separation tank 102, a water outlet of the ejector 206 is connected with the top of the ozone reaction column 101, a liquid level controller 204 is arranged inside the gas-liquid separation tank 102, a pressure reducing valve 205 is arranged at the top, and an electric ball valve 203 is arranged at the bottom.
In the embodiment, the height-diameter ratio of the ozone reaction column is 10:1, and the bottom of the ozone reaction column is provided with a titanium alloy material aeration head and a water inlet. The height-diameter ratio of the gas-liquid separation tank is 2.5: 1. The liquid level of the wastewater in the gas-liquid separation tank is controlled to be 1/3-2/3 of the height of the gas-liquid separation tank through a liquid level controller, when the liquid level is higher than 2/3 of the height of the gas-liquid separation tank, the electric ball valve is opened, and when the liquid level is lower than 1/3 of the height of the gas-liquid separation tank, the ball valve is closed. The pressure of the water inlet of the ejector is 0.5 MPa. The pressure relief value of the pressure relief valve is 0.7 MPa.
The above description is only for the purpose of illustrating preferred embodiments of the present invention and is not to be construed as limiting the utility model, and the present invention is not limited to the above examples, and those skilled in the art should also be able to make various changes, modifications, additions or substitutions within the spirit and scope of the present invention.
Claims (9)
1. The external circulation ozone oxidation wastewater device is characterized by comprising an ozone reaction column, a gas-liquid separation tank and an ejector, wherein an ozone generator is connected to the bottom of the ozone reaction column, the top of the gas-liquid separation tank is communicated with the top of the ozone reaction column, the bottom of the gas-liquid separation tank is connected with a water inlet of the ejector, and a water outlet of the ejector is communicated with the top of the ozone reaction column.
2. The external circulation ozone oxidation wastewater device as claimed in claim 1, wherein the ozone generator is connected with an ozone aeration head, the ozone aeration head is arranged at the bottom in the ozone reaction column, and water is discharged from the bottom in the ozone reaction column.
3. The external circulation ozone oxidation wastewater device as claimed in claim 1, wherein the liquid level of the gas-liquid separation tank is 1/3-2/3 of the height of the gas-liquid separation tank.
4. The external circulation ozone oxidation wastewater device as claimed in claim 1, wherein the top of the gas-liquid separation tank is connected with a pressure reducing valve, the inside of the gas-liquid separation tank is provided with a liquid level controller, and the bottom of the gas-liquid separation tank is also connected with an electric ball valve;
the gas-liquid separation tank is exhausted through the pressure reducing valve;
and the gas-liquid separation tank is used for discharging water through the electric ball valve.
5. The external circulation ozone oxidation wastewater device as claimed in claim 4, wherein the pressure relief valve has a pressure value of 0.7-1.0 MPa.
6. The external circulation ozone oxidation wastewater device as claimed in claim 1, wherein the pressure at the water inlet of the ejector is 0.2-0.8 MPa.
7. The external circulation ozone oxidation wastewater device as claimed in claim 1, further comprising a booster pump, wherein the bottom of the gas-liquid separation tank is connected with the water inlet of the ejector through the booster pump.
8. The external circulation ozone oxidation wastewater device as claimed in claim 1, wherein the height-diameter ratio of the ozone reaction column is 10: 1-15: 1.
9. The external circulation ozone oxidation wastewater device according to claim 1, wherein the height-diameter ratio of the gas-liquid separation tank is 2: 1-5: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120512777.1U CN215798668U (en) | 2021-03-10 | 2021-03-10 | External circulation ozone oxidation waste water device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120512777.1U CN215798668U (en) | 2021-03-10 | 2021-03-10 | External circulation ozone oxidation waste water device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215798668U true CN215798668U (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120512777.1U Active CN215798668U (en) | 2021-03-10 | 2021-03-10 | External circulation ozone oxidation waste water device |
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| CN (1) | CN215798668U (en) |
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2021
- 2021-03-10 CN CN202120512777.1U patent/CN215798668U/en active Active
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