Wastewater treatment device based on ozone and ROS advanced oxidation

Abstract

The utility model relates to a wastewater treatment device based on ozone and ROS advanced oxidation, which comprises an adjusting tank, a double-oxidation tank, a sedimentation tank and a biochemical tank, when organic wastewater is aerated in the double-oxidation tank, the double-oxidation tank is provided with a double-oxidation mechanism, not only can the piezoelectric catalysis effect be generated through an ROS aerator to generate active oxygen, but also the biochemical tank can be used for biochemical treatment. Organic pollutants in the organic wastewater can be oxidized and decomposed, ozone can be generated through the ozone machine and exists in a water body in the form of micro-nano bubbles after passing through the ROS aerator, refractory substances in the organic wastewater can be further efficiently degraded, the ozone and the ROS aerator can be efficiently and synergistically oxidized, the advanced oxidation effect can be remarkably enhanced, and the treatment effect is good. The biodegradability of the organic wastewater is enhanced, and when the organic wastewater enters the biochemical pool for biochemical degradation of the organic wastewater, the degradation effect on organic pollutants can be improved, so that the treatment effect of the organic wastewater is enhanced, and each index of the treated organic wastewater can reach the emission standard.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field especially relates to a wastewater treatment device based on ozone and ROS advanced oxidation. BACKGROUND

[0002] With the rapid development of economy, the living standard of residents is continuously improved, and the water consumption is gradually increased, and organic wastewater is wastewater mainly with organic pollutants, and is easy to cause water quality eutrophication, and the harm is relatively big, such as domestic wastewater or kitchen wastewater, and the pollution characteristics are all high organic pollutant content. Since the application principle of aeration technology is very simple, the compatibility to application environment and operating technical personnel is strong, has the advantages of simple and easy to use, has great popularization advantage, is widely used in the pretreatment and biochemical treatment stage in wastewater treatment process.

[0003] The existing aeration tank is usually provided with an aeration disc and an aeration membrane, air is pressed into the aeration disc, then passes through the aeration membrane, and can be dispersed into the water in the form of micro-bubbles, the micro-bubbles float upward from the bottom, promote the oxygen to be fully dissolved in the water, and can increase the dissolved oxygen content in the wastewater. Advanced oxidation technology, also known as deep oxidation technology, is a technology for treating organic pollutants, and is especially suitable for substances with poor biodegradability and relative molecular mass from several thousand to several ten thousand, and is characterized by producing active substances with strong oxidation ability, and under the reaction conditions of high temperature and high pressure, electricity, sound, light irradiation, catalyst and the like, large molecular weight organic matter is oxidized into small molecular weight matter with low or no toxicity, and the biodegradability is improved. The ROS aeration membrane technology is an innovative water treatment technology combining advanced oxidation technology with membrane, and the core is to transfer active oxygen through the membrane assembly, so that the organic pollutants in the wastewater can be oxidized and decomposed. However, when treating organic wastewater, the types of organic matter in the organic wastewater are complex and various, although most of the organic pollutants can be treated, part of the organic matter is still difficult to be effectively treated, which affects the oxidation treatment effect of the organic wastewater. UTILITY MODEL CONTENT

[0004] Therefore, it is necessary to provide a wastewater treatment device based on ozone and ROS advanced oxidation.

[0005] The utility model solves the technical scheme as follows: a wastewater treatment device based on ozone and ROS advanced oxidation, comprising: a regulating tank, a double-oxidation tank, a sedimentation tank and a biochemical tank.

[0006] The first end of the regulating tank is communicated with the first end of the double-oxidation tank, the second end of the double-oxidation tank is communicated with the first end of the sedimentation tank, and the second end of the sedimentation tank is communicated with the biochemical tank.

[0007] The double-oxidation tank is provided with a double-oxidation mechanism, the double-oxidation mechanism comprises: an ozone machine, an ozone pipe, an aeration pump, an aeration pipe and a ROS aerator, the ozone machine and the aeration pump are respectively arranged with the double-oxidation tank, the ROS aerator is arranged in the double-oxidation tank, the ROS aerator is provided with a first air inlet end and a second air inlet end, the first end of the ozone pipe is connected with the ozone machine, the second end of the ozone pipe is connected with the first air inlet end, the first end of the aeration pipe is connected with the aeration pump, and the second end of the aeration pipe is connected with the second air inlet end.

[0008] In one embodiment, the ROS aerator comprises: an aerator body and a ROS microporous aeration membrane, the ROS microporous aeration membrane is connected with the aerator body, and the first air inlet end and the second air inlet end are arranged on one end of the aerator body.

[0009] In one embodiment, the biochemical tank comprises: an anaerobic tank, an anoxic tank and an aerobic tank, the first end of the anaerobic tank is communicated with the second end of the sedimentation tank, the first end of the anaerobic tank is connected with the first end of the anoxic tank, and the second end of the anoxic tank is communicated with the aerobic tank.

[0010] In one embodiment, the number of ROS aerators is multiple.

[0011] In one embodiment, the ozone pipe is provided with a plurality of ozone branch pipes, the number of the ozone branch pipes is equal to the number of the ROS aerators, the first end of each ozone branch pipe is connected with the ozone pipe, and the second end of each ozone branch pipe is connected with the first air inlet end.

[0012] In one embodiment, the aeration pipe is provided with a plurality of aeration branch pipes, the number of the aeration branch pipes is equal to the number of the ROS aerators, the first end of each aeration branch pipe is connected with the aeration pipe, and the second end of each aeration branch pipe is connected with the second air inlet end.

[0013] In one embodiment, the wastewater treatment device based on ozone and ROS advanced oxidation further comprises: a grid well, the grid well is communicated with the second end of the conditioning tank.

[0014] In one embodiment, the wastewater treatment device based on ozone and ROS advanced oxidation further comprises: a first conveying pump and a first conveying pipe, the conditioning tank is communicated with the double-oxidation tank through the first conveying pump and the first conveying pipe.

[0015] In one embodiment, the wastewater treatment device based on ozone and ROS advanced oxidation further comprises: a second conveying pump and a second conveying pipe, the double-oxidation tank is communicated with the sedimentation tank through the second conveying pump and the second conveying pipe.

[0016] In one embodiment, the wastewater treatment device based on ozone and ROS advanced oxidation further comprises a third conveying pump and a third conveying pipe, and the sedimentation tank is communicated with the biochemical tank through the third conveying pump and the third conveying pipe.

[0017] The wastewater treatment device based on ozone and ROS advanced oxidation has the advantages that the adjusting tank, the double-oxidation tank, the sedimentation tank and the biochemical tank are sequentially communicated, the double-oxidation tank is provided with a double-oxidation mechanism, when organic wastewater is aerated in the double-oxidation tank, the ROS aerator of the double-oxidation mechanism can produce piezoelectric catalysis to generate active oxygen, organic pollutants in the organic wastewater can be oxidized and decomposed, and the ozone machine of the double-oxidation mechanism can generate ozone, which exists in the water body in the form of micro-nano bubbles after passing through the ROS aerator, so that the refractory substances in the organic wastewater can be further efficiently degraded, the two can efficiently and synergistically oxidize, the advanced oxidation effect can be significantly enhanced, the biodegradability of the organic wastewater is strengthened, when the organic wastewater enters the biochemical tank for biochemical degradation, the degradation effect on the organic pollutants can be improved, the organic matter concentration and the biological toxicity of the organic wastewater are greatly reduced, the treatment effect of the organic wastewater is enhanced, and the indexes of the treated organic wastewater can meet the discharge standard. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation on the scope, and other related drawings can also be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a structural schematic view of the wastewater treatment device based on ozone and ROS advanced oxidation of an embodiment.

[0020] Figure 2 It is a structural schematic view of the double-oxidation tank and the double-oxidation mechanism of an embodiment.

[0021] In the drawings, 10 is a wastewater treatment device based on ozone and ROS advanced oxidation; 100 is an adjusting tank; 200 is a double-oxidation tank; 300 is a sedimentation tank; 400 is a biochemical tank; 410 is an anaerobic tank; 420 is an anoxic tank; 430 is an aerobic tank; 500 is a double-oxidation mechanism; 510 is an ozone machine; 520 is an ozone pipe; 530 is an aeration pump; 540 is an aeration pipe; and 550 is a ROS aerator. DETAILED DESCRIPTION

[0022] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions of the present application will be further described below with reference to the drawings of the embodiments of the present application. The present application is not limited to the following specific embodiments.

[0023] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the present application, it should be understood that if the terms "upper", "lower", "front", "rear", "left", "right", "top" and "bottom" indicate the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation of the present patent. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0024] In one embodiment, as shown in Figure 1 and Figure 2 A wastewater treatment device 10 based on ozone and ROS advanced oxidation, comprising: a conditioning tank 100, a double oxidation tank 200, a sedimentation tank 300 and a biochemical tank 400, the first end of the conditioning tank 100 is communicated with the first end of the double oxidation tank 200, the second end of the double oxidation tank 200 is communicated with the first end of the sedimentation tank 300, the second end of the sedimentation tank 300 is communicated with the biochemical tank 400, the double oxidation tank 200 is provided with a double oxidation mechanism 500, the double oxidation mechanism 500 comprises: an ozone machine 510, an ozone pipe 520, an aeration pump 530, an aeration pipe 540 and a ROS aerator 550, the ozone machine 510 and the aeration pump 530 are respectively arranged apart from the double oxidation tank 200, the ROS aerator 550 is arranged in the double oxidation tank 200, the ROS aerator 550 is provided with a first air inlet end and a second air inlet end, the first end of the ozone pipe 520 is connected with the ozone machine 510, the second end of the ozone pipe 520 is connected with the first air inlet end, the first end of the aeration pipe 540 is connected with the aeration pump 530, and the second end of the aeration pipe 540 is connected with the second air inlet end.

[0025] In the embodiment, the adjusting tank 100, the double-oxidation tank 200, the sedimentation tank 300 and the biochemical tank 400 are sequentially communicated, and the organic wastewater is sequentially treated in the adjusting tank 100, the double-oxidation tank 200, the sedimentation tank 300 and the biochemical tank 400. After the organic wastewater passes through the adjusting tank 100, the organic wastewater is preliminarily settled in the adjusting tank 100, so that part of the particulate pollutants can be settled and separated, and the water quality of the organic wastewater can be adjusted. Then, the organic wastewater enters the double-oxidation tank 200 to be aerated. Since the double-oxidation tank 200 is provided with the double-oxidation mechanism 500, not only can the ROS aerator 550 of the double-oxidation mechanism 500 produce active oxygen through piezoelectric catalysis to oxidize and decompose the organic pollutants in the organic wastewater, but also the ozone machine 510 of the double-oxidation mechanism 500 can produce ozone, which exists in the water body in the form of micro-nano bubbles after passing through the ROS aerator 550, so that the refractory substances in the organic wastewater can be further efficiently degraded. The two can efficiently and synergistically oxidize, so that the advanced oxidation effect can be significantly enhanced, and the biodegradability of the organic wastewater is strengthened. After the organic wastewater treated by oxidation enters the sedimentation tank 300, the sediment generated by the reaction of the organic wastewater can be settled and separated, so that the water quality can be purified, and the subsequent biochemical tank 400 can be facilitated to perform biochemical treatment on the organic wastewater. When the organic wastewater finally enters the biochemical tank 400 to be biologically degraded, the degradation effect on the organic pollutants can be improved, and the organic matter concentration and biological toxicity of the organic wastewater are greatly reduced, so that the treatment effect of the organic wastewater is enhanced, and the indexes of the treated organic wastewater can reach the discharge standard.

[0026] In one embodiment, the ROS aerator 550 comprises an aerator body and a ROS microporous aeration membrane, the ROS microporous aeration membrane is connected with the aerator body, and the first air inlet end and the second air inlet end are respectively arranged on one end of the aerator body. Specifically, the ROS aerator is a tubular aerator or a disc aerator, the aerator body has an aeration channel, the ozone pipe 520 is communicated with the aeration channel through the first air inlet end, the aeration pipe 540 is communicated with the aeration channel through the second air inlet end, and the ROS microporous aeration membrane is arranged in alignment with the aeration channel. In this way, when pressurized aeration is performed, air and ozone can act on the ROS microporous aeration membrane through the aeration channel, and then pass through the ROS microporous aeration membrane to be aerated outward, so that micro-nano bubble aeration in the aeration cavity can be realized. The ROS microporous aeration membrane is a polyethylene microporous aeration membrane. Since the polyethylene microporous aeration membrane has the characteristics of high membrane porosity, super-large specific surface area, low aeration resistance, near-zero pore size deformation, acid and alkali resistance and high salt resistance, when air flow fully passes through the polyethylene microporous aeration membrane, smaller bubbles can be generated, the bubble density in unit volume is larger, and the bubbles can be more uniformly distributed, the mass transfer coefficient is high, the oxygen transmission efficiency is higher, piezoelectric catalysis can occur to produce active oxygen, and thus the organic pollutants in the organic wastewater can be better oxidized and decomposed.

[0027] In one embodiment, such as Figure 1 As shown, the biological treatment tank 400 includes an anaerobic tank 410, an anoxic tank 420, and an aerobic tank 430. The first end of the anaerobic tank 410 is connected to the second end of the sedimentation tank 300, the first end of the anaerobic tank 410 is connected to the first end of the anoxic tank 420, and the second end of the anoxic tank 420 is connected to the aerobic tank 430. Specifically, the anaerobic tank 410, the anoxic tank 420, and the aerobic tank 430 are connected sequentially, enabling the treatment of organic wastewater through different microbial metabolic pathways. They exert a synergistic effect in removing organic matter, nitrogen, and phosphorus. Pretreatment of high-concentration organic wastewater in the anaerobic tank 410 improves biodegradability and reduces sludge production. Further removal of nitrate nitrogen in the anoxic tank 420 further degrades organic matter. Finally, the aerobic tank 430 efficiently removes organic matter and ammonia nitrogen, thereby achieving compliant discharge of the treated organic wastewater.

[0028] In one embodiment, the number of ROS aerators 550 is set to multiple, and the ozone pipe 520 is provided with multiple ozone branch pipes. The number of ozone branch pipes is equal to the number of ROS aerators 550. The first end of each ozone branch pipe is connected to the ozone pipe 520, and the second end of each ozone branch pipe is connected to a first air inlet. The aeration pipe 540 is provided with multiple aeration branch pipes. The number of aeration branch pipes is equal to the number of ROS aerators 550. The first end of each aeration branch pipe is connected to the aeration pipe 540, and the second end of each aeration branch pipe is connected to a second air inlet. Specifically, each ROS aerator 550 is evenly distributed at the bottom of the dual oxidation tank 200. The ozone pipe 520 delivers ozone to each ROS aerator 550 through each ozone branch pipe. The aeration pipe 540 compresses air into each ROS aerator 550 through each aeration branch pipe for aeration. The number of ROS aerators 550 can be adjusted according to the needs of aeration, oxidation and purification. In this embodiment, no specific limitation is made. This allows the wastewater treatment device 10 based on ozone and ROS advanced oxidation to not only generate active oxygen through piezoelectric catalysis, but also to further and efficiently degrade recalcitrant substances in organic wastewater through ozone, resulting in better advanced oxidation effect.

[0029] In one embodiment, the wastewater treatment device 10 based on ozone and ROS advanced oxidation further includes a bar screen well, which is connected to the second end of the equalization tank 100. Specifically, after passing through the bar screen well, large particulate solids and suspended solids in the organic wastewater can be intercepted and removed, the water quality of the organic wastewater can be initially adjusted, pipe blockage can be avoided, and the normal operation of subsequent treatment facilities can be guaranteed.

[0030] In one embodiment, the wastewater treatment device based on ozone and ROS advanced oxidation 10 further comprises a first conveying pump and a first conveying pipe, and the adjusting tank 100 is communicated with the double-oxidation tank 200 through the first conveying pump and the first conveying pipe. Specifically, the first conveying pipe comprises a first conveying sub-pipe and a second conveying sub-pipe, the first end of the first conveying sub-pipe is communicated with the first end of the adjusting tank 100, the second end of the first conveying sub-pipe is communicated with the input end of the first conveying pump, the output end of the first conveying pump is communicated with the first end of the second conveying sub-pipe, and the second end of the second conveying sub-pipe is communicated with the first end of the double-oxidation tank 200, so that the organic wastewater in the adjusting tank 100 can be conveyed into the double-oxidation tank 200 for aeration oxidation treatment. Correspondingly, the wastewater treatment device based on ozone and ROS advanced oxidation 10 further comprises a second conveying pump and a second conveying pipe, and the double-oxidation tank 200 is communicated with the sedimentation tank 300 through the second conveying pump and the second conveying pipe. The wastewater treatment device based on ozone and ROS advanced oxidation 10 further comprises a third conveying pump and a third conveying pipe, and the sedimentation tank 300 is communicated with the biochemical tank 400 through the third conveying pump and the third conveying pipe, so that the organic wastewater in the double-oxidation tank 200 can be conveyed into the sedimentation tank 300 and the biochemical tank 400 in sequence. It is worth noting that the conveying of the organic wastewater between the grid well, the adjusting tank 100, the double-oxidation tank 200, the sedimentation tank 300 and the anaerobic tank 410, the anoxic tank 420 and the aerobic tank 430 of the biochemical tank 400 can be realized by the conveying pump and the conveying pipe, which is not described in detail in this embodiment.

[0031] Compared with the prior art, the utility model has at least the following advantages:

[0032] The wastewater treatment device based on ozone and ROS advanced oxidation provided by the utility model has the adjusting tank, the double-oxidation tank, the sedimentation tank and the biochemical tank communicated in sequence, the double-oxidation tank is provided with the double-oxidation mechanism, when the organic wastewater is aerated in the double-oxidation tank, not only can the ROS aerator of the double-oxidation mechanism produce active oxygen through piezoelectric catalysis to oxidize and decompose the organic pollutants in the organic wastewater, but also can the ozone machine of the double-oxidation mechanism produce ozone, which exists in the water body in the form of micro-nano bubbles after the ROS aerator, so that the refractory substances in the organic wastewater can be further degraded efficiently, the two can be oxidized efficiently and cooperatively, the advanced oxidation effect can be enhanced significantly, the biodegradability of the organic wastewater is strengthened, when the organic wastewater enters the biochemical tank for biochemical degradation, the degradation effect of the organic pollutants can be improved, the organic matter concentration and the biological toxicity of the organic wastewater are reduced greatly, so the treatment effect of the organic wastewater is enhanced, and the indexes of the treated organic wastewater can reach the discharge standard.

[0033] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A wastewater treatment device based on advanced oxidation by ozone and ROS, characterized by, The utility model relates to a sewage treatment device, including: Adjusting pool, double oxidation pool, sedimentation tank and biochemical pool; The first end of the adjusting pool is communicated with the first end of the double oxidation pool, the second end of the double oxidation pool is communicated with the first end of the sedimentation tank, and the second end of the sedimentation tank is communicated with the biochemical pool; The double oxidation pool is provided with a double oxidation mechanism, the double oxidation mechanism includes: ozone machine, ozone pipe, aeration pump, aeration pipe and ROS aerator, the ozone machine and the aeration pump are spaced apart from the double oxidation pool respectively, the ROS aerator is arranged in the double oxidation pool, the ROS aerator is provided with first air inlet and second air inlet, the first end of the ozone pipe is connected with the ozone machine, the second end of the ozone pipe is connected with the first air inlet, the first end of the aeration pipe is connected with the aeration pump, and the second end of the aeration pipe is connected with the second air inlet.

2. The wastewater treatment device based on advanced oxidation by ozone and ROS according to claim 1, characterized in that, The ROS aerator includes: aerator main body and ROS microporous aeration membrane, the ROS microporous aeration membrane is connected with the aerator main body, and the first air inlet and the second air inlet are arranged on one end of the aerator main body respectively.

3. The wastewater treatment device based on advanced oxidation by ozone and ROS according to claim 1, characterized in that, The biochemical pool includes: anaerobic pool, anoxic pool and aerobic pool, the first end of the anaerobic pool is communicated with the second end of the sedimentation tank, the first end of the anaerobic pool is connected with the first end of the anoxic pool, and the second end of the anoxic pool is communicated with the aerobic pool.

4. The wastewater treatment device based on advanced oxidation by ozone and ROS according to claim 1, characterized in that, The number of ROS aerators is multiple.

5. The wastewater treatment device based on advanced oxidation by ozone and ROS according to claim 4, characterized in that, A plurality of ozone branch pipes are arranged on the ozone pipe, the number of the ozone branch pipes is equal to the number of the ROS aerators, the first end of each ozone branch pipe is connected with the ozone pipe, and the second end of each ozone branch pipe is connected with the first air inlet.

6. The wastewater treatment device based on advanced oxidation by ozone and ROS according to claim 5, characterized in that, A plurality of aeration branch pipes are arranged on the aeration pipe, the number of the aeration branch pipes is equal to the number of the ROS aerators, the first end of each aeration branch pipe is connected with the aeration pipe, and the second end of each aeration branch pipe is connected with the second air inlet.

7. The wastewater treatment device based on advanced oxidation by ozone and ROS according to claim 1, characterized in that, Further including: A grid well is communicated with the second end of the adjusting pool.

8. The wastewater treatment device based on advanced oxidation by ozone and ROS according to claim 1, characterized in that, Further including: A first conveying pump and a first conveying pipe, the adjusting pool is communicated with the double oxidation pool through the first conveying pump and the first conveying pipe.

9. The wastewater treatment device based on advanced oxidation by ozone and ROS according to claim 1, characterized in that, Further including: A second conveying pump and a second conveying pipe, the double oxidation pool is communicated with the sedimentation tank through the second conveying pump and the second conveying pipe.

10. The wastewater treatment device based on advanced oxidation by ozone and ROS according to claim 1, characterized in that, Further including: A third conveying pump and a third conveying pipe, the sedimentation tank is communicated with the biochemical pool through the third conveying pump and the third conveying pipe.

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