CN210683466U - Waste water treatment device - Google Patents
Waste water treatment device Download PDFInfo
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- CN210683466U CN210683466U CN201922404652.2U CN201922404652U CN210683466U CN 210683466 U CN210683466 U CN 210683466U CN 201922404652 U CN201922404652 U CN 201922404652U CN 210683466 U CN210683466 U CN 210683466U
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Abstract
The utility model discloses a wastewater treatment device, which belongs to the field of sewage treatment equipment. A wastewater treatment device comprises a main body reactor, wherein a water inlet pipe and a pipeline mixer are arranged on the side wall of the lower end of the main body reactor; h2O2The input end of the feeding device is connected with the water inlet pipe; wherein the ozone aeration disc is connected with an ozone generator through a pipeline; an ultraviolet lamp tube; the three-phase separator is fixedly connected to the inner wall of the top of the main reactor; the utility model discloses cross-introducing ozone and heterogeneous catalyst for there are two kinds of catalysts in the system: o is3And H2O2Therefore, the generation rate of OH in the system is greatly improved, and the OH is settled and returned to the reaction system after passing through a three-phase separator withoutStructures such as a secondary sedimentation tank and the like are required to be added, so that the floor area is reduced, and the secondary pollution to the water body is avoided.
Description
Technical Field
The utility model relates to a sewage treatment device technical field especially relates to a wastewater treatment device.
Background
With the development of industry and the progress of science and technology, the difficulty of treating wastewater generated by industrial enterprises is increasing day by day; on the other hand, as environmental protection policies become stricter, the discharge standards of industrial enterprises or municipal sewage treatment plants (stations) are gradually increased, and therefore, the advanced treatment process of each sewage treatment plant (station) needs to meet the stricter discharge standards of sewage under more complicated conditions of influent water quality. The existing advanced treatment process of high-difficulty wastewater usually takes Fenton or ozone catalysis as a main part, on one hand, a large amount of chemical sludge possibly appears in the process and is not beneficial to the long-term development of a sewage treatment plant, and on the other hand, the treatment capacity of the existing advanced treatment process is limited, so that the existing advanced treatment process of high-difficulty wastewater is difficult to meet the higher discharge standard.
UV/H2O2The catalytic oxidation process is a pretreatment or advanced treatment process of a sewage treatment plant emerging in recent years, and induces H by virtue of the activation of ultraviolet light2O2Generating hydroxyl free radical (OH with redox potential of 2.80V), and the OH can open ring, break chain or directly mineralize organic matters into CO without selectivity2And H2O, because of its advantages of cleanliness and high efficiency, is becoming a hot spot for research and application. However, during the operation, the ultraviolet lamp tube needs higher energy to excite H2O2Formation of OH, UV/H2O2The catalytic oxidation system is faced with the disadvantages of high energy consumption, short service life of ultraviolet lamp tube, low OH generation rate and the like, and further popularization and application of the catalytic oxidation system are limited.
Disclosure of Invention
An object of the utility model is to provide a waste water treatment device based on catalytic oxidation reaction, the device is by H2O2The device comprises a feeding device, an ozone generator, an ozone aeration disc, an ultraviolet lamp tube, a heterogeneous catalyst, an ozone tail gas destructor and the like.
A wastewater treatment device comprises a main body reactor, wherein a water inlet pipe and a pipeline mixer are arranged on the side wall of the lower end of the main body reactor; h2O2An output end of the feeding device is connected with the water inlet pipe and is used for feeding H into sewage2O2(ii) a The ozone aeration disc is arranged at the bottom of the main body reactor; wherein the ozone aeration disc is connected with an ozone generator through a pipeline; the ultraviolet lamp tube is used for being connected with the inside of the main body reactor; the three-phase separator is fixedly connected to the inner wall of the top of the main reactor; the water outlet pipe is used for being connected with the side wall of the upper end of the main body reactor; and a catalyst feeding port is arranged on the main body reactor.
Preferably, the wastewater treatment device further comprises an ozone tail gas destructor, and the input end of the ozone tail gas destructor is communicated with the top of the main body reactor.
As a first improvement, in the conventional UV/H2O2Ozone is added to the catalytic oxidation system. Ozone as a strong oxidant not only has strong oxidizing ability and selective removal of double-bond organic matters, but also can rapidly induce H2O2OH is generated, and the generation rate of the OH is improved; in addition, ozone gas enters the system from the bottom aeration disc, so that the heterogeneous catalytic oxidation filler is in a suspension state.
As a second improvement, the catalytic filler is present in the system in a heterogeneous form. On one hand, compared with homogeneous fillers, the heterogeneous fillers do not need to be added for a long time, so that the operation cost is greatly reduced, and the problems of secondary pollution and the like are avoided; on the other hand, under the ozone aeration, heterogeneous filler is uniformly suspended near the ultraviolet lamp tube, and under the induction of ultraviolet light, hole electron pairs on the surface of the catalyst adsorb H2O2OH is formed.
As the third improvement, low-pressure ultraviolet lamp tubes are adopted and uniformly distributed in the reactor, so that the utilization efficiency of the oxidant to ultraviolet light is improved, the operation energy consumption is reduced, and the service life of the lamp tubes is prolonged.
As an improved fourth method, the upper part is provided with a three-phase separator which can separate gas and heterogeneous catalyst generated by reaction from purified water, and the heterogeneous catalyst enters the reaction system again after being settled for recycling. The purified water directly enters the next treatment process without precipitation.
The utility model has the advantages that: by leadingOzone and heterogeneous catalysts are added so that two catalysts are present in the system: UV heterogeneous catalyst, two oxidants are present: o is3And H2O2Therefore, the OH generation rate in the system is greatly improved. The catalyst exists in the system in a heterogeneous form, and is settled and returned to the reaction system after passing through the three-phase separator, structures such as a secondary sedimentation tank and the like do not need to be additionally arranged, the floor area is reduced, and the secondary pollution to the water body is avoided. Finally, due to the introduction of the heterogeneous catalyst, the energy required by the lamp tube is greatly reduced, so that the service life of the lamp tube is prolonged, and the energy consumption is reduced.
Description of the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
in the figure: 1. a main body reactor; 2. a water inlet pipe; 3. h2O2A feeding device; 4. a pipeline mixer; 5. an ozone generator; 6. an ozone aeration disc; 7. an ultraviolet lamp tube; 8. heterogeneous catalytic oxidation packing; 9. a three-phase separator; 10. an ozone tail gas destructor; 11. and (5) discharging a water pipe.
The specific implementation mode is as follows:
the technical solution 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, rather than all embodiments, and other embodiments obtained by those skilled in the art based on the embodiments of the present invention all belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment describes a wastewater treatment device, the reactor is totally enclosed, a water inlet pipe 2 and a pipeline mixer 4 are arranged on the side wall of the lower end, an ozone aeration disc 6 is installed at the bottom of the main body reactor 1, ozone generated by an ozone generator 5 is introduced into the main body reactor 1, an ultraviolet lamp tube 7 is fixed in the main body reactor 1, a heterogeneous catalyst 8 is added, a three-phase separator 9 is fixed on the upper part of the reactor, a water outlet pipe 11 is arranged on the side wall of the upper end of the reactor, and a gas outlet and an ozone tail gas destructor 10 are arranged at the top end of the reactor.
During the reaction, sewage enters from the bottomWater pipe 2 is passed through H before it is passed into main reactor 12O2The adding device 3 adds H into the sewage2O2And after being mixed by the pipeline mixer 4, the sewage enters the main reactor 1, the ozone generated by the ozone generator 5 is changed into ozone microbubbles with smaller particle size after passing through the aeration disc, the ozone microbubbles are aerated from bottom to top, and the heterogeneous catalyst 8 is suspended in the system. Under the excitation of ultraviolet light and the heterogeneous catalyst 8, H2O2 generates OH. After the sewage after reaction passes through the three-phase separator 9, the heterogeneous catalyst 8 is settled and enters the reaction system again, the unreacted ozone and other gases pass through the gas outlet at the top end and then enter the ozone tail gas destructor 10 to prevent the environment from being damaged, and the purified effluent enters the next treatment process through the water outlet.
As a first improvement, in the conventional UV/H2O2Ozone is added to the catalytic oxidation system. Ozone as a strong oxidant not only has strong oxidizing ability (oxidation-reduction potential of 2.07V) and can selectively remove double-bond organic matters, but also can rapidly induce H2O2OH is generated, and the generation rate of the OH is improved; in addition, ozone gas enters the system from the bottom aeration disc, so that the heterogeneous catalytic oxidation filler is in a suspension state.
As an improved second method, the catalytic filler exists in the system in a heterogeneous form, on one hand, compared with a homogeneous filler, the heterogeneous filler does not need to be added for a long time, the operation cost is greatly reduced, and the problems of secondary pollution and the like are avoided; on the other hand, under the ozone aeration, heterogeneous filler is uniformly suspended near the ultraviolet lamp tube, and under the induction of ultraviolet light, hole electron pairs on the surface of the catalyst adsorb H2O2OH is formed.
As the third improvement, low-pressure ultraviolet lamp tubes are adopted and uniformly distributed in the reactor, so that the utilization efficiency of the oxidant to ultraviolet light is improved, the operation energy consumption is reduced, and the service life of the lamp tubes is prolonged.
As an improved fourth method, the upper part is provided with a three-phase separator which can separate gas and heterogeneous catalyst generated by reaction from purified water, and the heterogeneous catalyst enters the reaction system again after being settled for recycling. The purified water directly enters the next treatment process without precipitation.
By introducing ozone and a heterogeneous catalyst, two catalysts are present in the system: UV heterogeneous catalyst, two oxidants are present: o is3And H2O2Therefore, the OH formation rate in the system is greatly improved. The catalyst exists in the system in a heterogeneous form, and is settled and returned to the reaction system after passing through the three-phase separator, structures such as a secondary sedimentation tank and the like do not need to be additionally arranged, the floor area is reduced, and the secondary pollution to the water body is avoided. Finally, due to the introduction of the heterogeneous catalyst, the energy required by the lamp tube is greatly reduced, so that the service life of the lamp tube is prolonged, and the energy consumption is reduced.
The present invention is not limited to the above preferred embodiments, and any person can obtain other products in various forms without departing from the scope of the present invention, and any change in shape or structure is included in the technical solution that is the same as or similar to the present invention.
Claims (2)
1. A wastewater treatment device is characterized by comprising
The device comprises a main body reactor (1), wherein a water inlet pipe (2) and a pipeline mixer (4) are arranged on the side wall of the lower end of the main body reactor (1);
H2O2an output end of the feeding device (3) is connected with the water inlet pipe (2) and is used for feeding H into sewage2O2；
An ozone aeration disc (6) which is arranged at the bottom of the main body reactor (1);
wherein the ozone aeration disc (6) is connected with an ozone generator (5) through a pipeline;
the ultraviolet lamp tube (7) is connected to the inside of the main body reactor (1);
the three-phase separator (9) is fixedly connected to the inner wall of the top of the main reactor (1);
a water outlet pipe (11) which is used for connecting the side wall of the upper end of the main body reactor (1);
the main body reactor (1) is provided with a catalyst feeding port.
2. A wastewater treatment plant according to claim 1, characterized in that it further comprises an ozone off-gas destructor (10), the input of said ozone off-gas destructor (10) being in communication with the top of the main reactor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922404652.2U CN210683466U (en) | 2019-12-27 | 2019-12-27 | Waste water treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922404652.2U CN210683466U (en) | 2019-12-27 | 2019-12-27 | Waste water treatment device |
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| CN210683466U true CN210683466U (en) | 2020-06-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114516691A (en) * | 2020-11-19 | 2022-05-20 | 重庆力德高端水处理设备研发有限公司 | Photocatalytic oxidation reaction device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114516691A (en) * | 2020-11-19 | 2022-05-20 | 重庆力德高端水处理设备研发有限公司 | Photocatalytic oxidation reaction device |
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