CN114956298A - Dissolved air catalytic system for municipal sewage and application thereof - Google Patents

Dissolved air catalytic system for municipal sewage and application thereof Download PDF

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Publication number
CN114956298A
CN114956298A CN202210700448.9A CN202210700448A CN114956298A CN 114956298 A CN114956298 A CN 114956298A CN 202210700448 A CN202210700448 A CN 202210700448A CN 114956298 A CN114956298 A CN 114956298A
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CN
China
Prior art keywords
tank
catalytic
dissolved air
communicated
ozone
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Pending
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CN202210700448.9A
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Chinese (zh)
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不公告发明人
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Harbin Zeneng Environmental Protection Technology Co ltd
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Harbin Zeneng Environmental Protection Technology Co ltd
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Priority to CN202210700448.9A priority Critical patent/CN114956298A/en
Publication of CN114956298A publication Critical patent/CN114956298A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/78Treatment of water, waste water, or sewage by oxidation with ozone
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/725Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The invention discloses a dissolved air catalysis system for municipal sewage and application thereof, and particularly relates to the technical field of municipal sewage treatment, wherein the dissolved air catalysis system comprises a dissolved air tank and a catalysis tank; an isolation shell is arranged in the dissolved air tank, the upper surface of the inner wall of the isolation shell is fixedly connected with a reaction chamber, and the output end and the input end of the reaction chamber are both communicated with a dissolved air releaser through connecting pipes; according to the invention, the dissolved air tank, the catalytic tank and the positive and negative electrodes are arranged, COD (chemical oxygen demand) and refractory organic matters in the wastewater are treated by virtue of the heterogeneous catalysis function of the ozone catalyst and the ozone and the homogeneous catalysis effect generated by ferrous ions and the like generated by the positive and negative electrodes, and the ozone in the wastewater can be released by the catalytic tank and then recovered to the dissolved air tank for continuous utilization by virtue of the heterogeneous catalysis function of the ozone catalyst and the ozone, so that the pollution treatment efficiency is ensured, and the damage of the dissolved air catalytic system to the environment is reduced.

Description

Dissolved air catalytic system for municipal sewage and application thereof
Technical Field
The invention relates to the technical field of municipal sewage treatment, in particular to a dissolved air catalytic system for municipal sewage and application thereof.
Background
The sewage treatment in China generally adopts a conventional activated sludge method, namely, the requirements of sewage lifting, oxygen supply, chemical oxygen demand biotransformation, nitrogen and phosphorus removal, sludge concentration and the like are met by consuming a large amount of energy.
In the process of sewage treatment, because of the problem of impurities, the sewage treatment device needs to be placed for a long time to precipitate the impurities in the sewage, however, the method is low in efficiency, the efficiency of municipal sewage treatment is difficult to meet, and the exhaust emission in the process of sewage treatment is difficult to reach the emission standard.
Therefore, the existing municipal sewage treatment system is not only deficient in the efficiency of sewage treatment, but also easily causes damage to the environment.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a dissolved air catalytic system for municipal sewage and application thereof, and the technical problems to be solved by the invention are as follows: thereby it deposits to the impurity in the sewage to lead to its long-time placing of needs because the problem of its impurity at sewage treatment's in-process, however this kind of mode inefficiency, is difficult to satisfy present municipal sewage treatment's efficiency, and is difficult to reach the standard of emission at the in-process exhaust-gas discharge who handles sewage, consequently, current municipal sewage treatment system not only is lacking in the efficiency to sewage treatment, and causes the problem of destruction to the environment easily.
In order to achieve the purpose, the invention provides the following technical scheme: a dissolve gas catalytic system for municipal sewage, including dissolving gas system and catalytic tank, dissolve gas system including dissolving the gas jar.
Dissolve and be provided with the separation shell in the gas pitcher, the last fixed surface of separation shell inner wall is connected with the reaction chamber, the output and the input of reaction chamber all are linked together with dissolving the gas releaser through the connecting pipe, dissolve the upper surface of gas releaser and the lower fixed surface of reaction chamber and be connected, dissolve the output of gas releaser and two gas-dissolving tube's top and be linked together, it is linked together with the upper surface that the release connects to pass the separation shell to dissolve tracheal bottom, the lower surface that the release connects and the lower fixed surface who dissolves the gas pitcher inner wall are connected, the quantity of aeration equalizing basin is two, and two aeration equalizing basins are linked together through first pipe.
Wherein, the aeration equalizing basin is linked together through second pipe and contact oxidation pond, be provided with the packing layer in the contact oxidation pond, be provided with the gas distribution device in the contact oxidation pond, the below of gas distribution device is provided with water installations, contact oxidation pond be linked together with air access valve pipe, dissolve gas pitcher and catalytic tank two-way intercommunication, adopt heterogeneous catalysis and homogeneous phase catalysis operation simultaneously in the catalytic tank, retrieve once more after the catalytic tank releases ozone in with the sewage through the heterogeneous catalysis function of ozone catalyst and ozone and input the gas pitcher of dissolving.
As a further scheme of the invention: the dissolved air tank is communicated with the catalytic tank through a second guide pipe, a water distributor is arranged in the catalytic tank, the output end of the second guide pipe is positioned in the water distributor, an ozone catalyst is arranged in the catalytic tank, a positive electrode and a negative electrode are arranged in the catalytic tank, the top of the catalytic tank is connected to the dissolved air tank through an eighth guide pipe, and the flowing directions of fluids in the second guide pipe and the second guide pipe are opposite.
As a further scheme of the invention: the contact oxidation tank is communicated with the inclined tube sedimentation tank through a fifth conduit.
As a further scheme of the invention: the outer surfaces of the inclined tube sedimentation tank, the contact oxidation tank and the aeration adjusting tank are provided with sealing covers, and the sealing covers above the aeration adjusting tank and the contact oxidation tank are communicated with a third conduit through control valves.
As a further scheme of the invention: the aeration adjusting tank is communicated with the contact oxidation tank through a fourth conduit, the contact oxidation tank is communicated with a sludge tank through a sixth conduit, the sludge tank is communicated with the inclined tube sedimentation tank through a conduit, and the inclined tube sedimentation tank is communicated with the catalytic tank through a conduit.
As a further scheme of the invention: the inclined tube sedimentation tank is communicated with the dissolved gas system through a fifth conduit, the inclined tube sedimentation tank is communicated with one end of a seventh conduit through the fifth conduit, and the other end of the seventh conduit is communicated with the gas generator.
As a further scheme of the invention: the output end of the air dissolving system is communicated with the input end of the clean water tank, and a liquid discharge pump is arranged in the clean water tank.
The application of a dissolved air catalytic system for municipal sewage comprises the following application methods:
and S1, operating through the air dissolving system, so that the ozone is uniformly dissolved into the water through the air dissolving system.
S2, when the sewage enters the catalytic tank, the sewage needs to be further catalytically treated by adjusting the positive and negative electrodes between the positive and negative electrodes.
S3, part of sewage after being treated by the gas dissolving system can carry ozone into the catalytic tank, the sewage is disinfected and discharged into the clean water tank after being converged with the sewage in the catalytic tank, in the step, the positive and negative electrodes generate ferrous ions through the positive and negative electrodes, the organic matters are subjected to homogeneous catalysis, COD and refractory organic matters in the wastewater are treated through the heterogeneous catalysis function of the ozone catalyst and the ozone and the homogeneous catalysis generated by the ferrous ions generated by the positive and negative electrodes, and the ozone in the sewage is recycled and input into the gas dissolving tank after being released by the catalytic tank through the heterogeneous catalysis function of the ozone catalyst and the ozone.
S4, discharging the settled substances into a sludge tank, and rolling and forming to discharge. The invention has the beneficial effects that: according to the invention, the dissolved air tank, the dissolved air releaser, the aeration regulating tank and the catalytic tank are arranged, the positive electrode and the negative electrode generate ferrous ions through the positive electrode and the negative electrode to perform homogeneous catalysis on organic matters, meanwhile, COD (chemical oxygen demand) and refractory organic matters in the wastewater are treated through the heterogeneous catalysis function of the ozone catalyst and ozone and the homogeneous catalysis effect generated by the ferrous ions generated by the positive electrode and the negative electrode, and the ozone in the sewage can be recovered to the dissolved air tank for continuous utilization after being released by the catalytic tank through the heterogeneous catalysis function of the ozone catalyst and ozone, so that the sewage treatment efficiency is ensured, meanwhile, the damage of the dissolved air catalytic system to the environment is reduced, and the utilization rate of resources by the dissolved air system is improved.
Drawings
FIG. 1 is a flow diagram of a dissolved air catalytic system for municipal wastewater.
FIG. 2 is a schematic diagram of a catalytic tank in a dissolved air catalytic system for municipal wastewater.
FIG. 3 is a block diagram of a contact oxidation tank in a dissolved air catalytic system for municipal wastewater.
FIG. 4 is a schematic diagram of a gas dissolving system in a gas dissolving catalytic system for municipal sewage.
In the drawings: 1 dissolved air system, 101 dissolved air tank, 102 isolation shell, 103 reaction chamber, 104 dissolved air releaser, 105 dissolved air pipe, 106 release joint, 2 aeration adjusting tank, 3 first conduit, 4 second conduit, 5 catalytic tank, 6 ozone catalyst, 7 water distributor, 8 positive and negative electrodes, 9 sealing cover, 10 third conduit, 11 control valve, 12 fourth conduit, 13 contact oxidation tank, 14 packing layer, 15 air distributor, 16 water inlet device, 17 air access valve pipe, 18 fifth conduit, 19 inclined tube sedimentation tank, 20 sixth conduit, 21 sludge tank, 22 clean water tank, 23 gas generator, 24 seventh conduit.
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 the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Example 1
As shown in figure 1, the invention provides an air dissolving catalytic system for municipal sewage, which comprises an air dissolving system 1 and a catalytic tank 5, wherein the air dissolving system 1 comprises an air dissolving tank 101.
Be provided with isolation shell 102 in the dissolved air tank 101, the upper surface fixed connection of isolation shell 102 inner wall has reaction chamber 103, reaction chamber 103's output and input all are linked together with dissolved air releaser 104 through the connecting pipe, the upper surface of dissolved air releaser 104 and reaction chamber 103's lower fixed connection, dissolved air releaser 104's output is linked together with two dissolved air pipe 105's top, dissolved air pipe 105's bottom is passed isolation shell 102 and is linked together with the upper surface that the release connects 106, the lower surface that the release connects 106 and the lower fixed connection who dissolves the air tank 101 inner wall, the quantity of aeration equalizing basin 2 is two, and two aeration equalizing basins 2 are linked together through first pipe 3.
Wherein, aeration equalizing basin 2 is linked together through second pipe 4 and contact oxidation pond 13, be provided with packing layer 14 in the contact oxidation pond 13, be provided with gas distribution device 15 in the contact oxidation pond 13, gas distribution device 15's below is provided with water installations 16, contact oxidation pond 13 is linked together with air access valve pipe 17, dissolve gas pitcher and catalytic tank two-way intercommunication, adopt heterogeneous catalysis and homogeneous catalysis operation simultaneously in the catalytic tank, retrieve once more after the catalytic tank releases ozone in the sewage through the heterogeneous catalysis function of ozone catalyst and ozone and input and dissolve the gas pitcher.
The dissolved air tank 101 is communicated with the catalytic tank 5 through a second conduit 4, a water distributor 7 is arranged in the catalytic tank 5, the output end of the second conduit 4 is positioned in the water distributor 7, an ozone catalyst 6 is arranged in the catalytic tank 5, a positive electrode and a negative electrode 8 are arranged in the catalytic tank 5, the top of the catalytic tank is connected to the dissolved air tank through an eighth conduit, and the flow directions of fluids in the second conduit and the second conduit are opposite.
Example 2
As shown in FIG. 3, a structure of a contact oxidation tank 13 in a dissolved air catalytic system for municipal sewage.
The contact oxidation pond 13 is communicated with an inclined tube sedimentation pond 19 through a fifth conduit 18, the outer surfaces of the inclined tube sedimentation pond 19, the contact oxidation pond 13 and the aeration adjusting pond 2 are all provided with a sealing cover 9, the sealing cover 9 positioned above the aeration adjusting pond 2 and the contact oxidation pond 13 is communicated with a third conduit 10 through a control valve 11, the aeration adjusting pond 2 is communicated with the contact oxidation pond 13 through a fourth conduit 12, the contact oxidation pond 13 is communicated with a sludge pond 21 through a sixth conduit 20, the sludge pond 21 is communicated with the inclined tube sedimentation pond 19 through a conduit, the inclined tube sedimentation pond 19 is communicated with a catalytic tank 5 through a conduit, the inclined tube sedimentation pond 19 is communicated with a dissolved air system 1 through a fifth conduit 18, the inclined tube sedimentation pond 19 is communicated with one end of a seventh conduit 24 through a fifth conduit 18, the other end of the seventh conduit 24 is communicated with a gas generator 23, the output end of the dissolved air system 1 is communicated with the input end of a clean water pond 22, a drain pump is provided in the clean water tank 22.
The application of a dissolved air catalytic system for municipal sewage comprises the following application methods:
and S1, operating through the air dissolving system, so that the ozone is uniformly dissolved into the water through the air dissolving system.
S2, when the sewage enters the catalytic tank 5, the sewage needs to be further catalyzed by adjusting the anode and the cathode between the anode and the cathode 8.
S3, part of sewage treated by the dissolved air system 1 enters the catalytic tank 5 with ozone, is disinfected after being converged with the sewage in the catalytic tank 5 and is discharged into the clean water tank 22, in the step, the positive and negative electrodes generate ferrous ions through the positive and negative electrodes to perform homogeneous catalysis on organic matters, meanwhile, COD and organic matters which are difficult to degrade in the wastewater are treated through the heterogeneous catalysis function of the ozone catalyst and the ozone and the homogeneous catalysis effect generated by the ferrous ions generated by the positive and negative electrodes, and the ozone in the sewage is released by the catalytic tank 5 through the heterogeneous catalysis function of the ozone catalyst and the ozone and then is recycled and input into the dissolved air tank 101; .
S4, discharging the settled substances into the sludge tank 21, and discharging by rolling and forming.
Because of being provided with dissolved gas jar 101, dissolved gas releaser 104, catalytic tank 5 and positive negative electrode 8, COD and the difficult degradation organic matter in the homogeneous catalysis effect processing waste water that produces such as ferrous ion through the heterogeneous catalysis function of ozone catalyst 6 and ozone and the produced positive negative electrode 8 simultaneously, and the heterogeneous catalysis function through ozone catalyst 6 and ozone can be retrieved dissolved gas jar 101 and continue to utilize after catalytic tank 5 releases ozone in the sewage, when having ensured sewage treatment efficiency, the destruction that this dissolved gas catalytic system led to the fact the environment has been reduced, the utilization ratio of this dissolved gas system 1 to the resource has been improved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a dissolve gas catalytic system for municipal sewage, includes dissolve gas system and catalytic tank, its characterized in that: the gas dissolving system comprises a gas dissolving tank;
the device comprises a dissolved air tank, a reaction chamber, a dissolved air releaser, a first guide pipe, two aeration adjusting pools and a second guide pipe, wherein an isolation shell is arranged in the dissolved air tank, the upper surface of the inner wall of the isolation shell is fixedly connected with the reaction chamber, the output end and the input end of the reaction chamber are both communicated with the dissolved air releaser through connecting pipes, the upper surface of the dissolved air releaser is fixedly connected with the lower surface of the reaction chamber, the output end of the dissolved air releaser is communicated with the top ends of the two dissolved air pipes, the bottom ends of the dissolved air pipes penetrate through the isolation shell to be communicated with the upper surface of a release connector, the lower surface of the release connector is fixedly connected with the lower surface of the inner wall of the dissolved air tank, the number of the aeration adjusting pools is two, and the two aeration adjusting pools are communicated with each other through the first guide pipe;
the aeration regulating tank is communicated with the contact oxidation tank through a second conduit, a packing layer is arranged in the contact oxidation tank, a gas distribution device is arranged in the contact oxidation tank, a water inlet device is arranged below the gas distribution device, and the contact oxidation tank is communicated with an air access valve pipe;
dissolve gas pitcher and catalytic tank both way intercommunication, adopt heterogeneous catalysis and homogeneous catalysis operation simultaneously in the catalytic tank, retrieve once more after the heterogeneous catalysis function through ozone catalyst and ozone releases ozone in the sewage and input into dissolving the gas pitcher.
2. The dissolved air catalytic system for municipal sewage according to claim 1, wherein: the dissolved gas tank is communicated with the bottom of the catalytic tank through a second guide pipe, a water distributor is arranged in the catalytic tank, the output end of the second guide pipe is positioned in the water distributor, an ozone catalyst is arranged in the catalytic tank, a positive electrode and a negative electrode are arranged in the catalytic tank, the top of the catalytic tank is connected to the dissolved gas tank through an eighth guide pipe, and the flow directions of fluids in the second guide pipe and the second guide pipe are opposite.
3. The dissolved air catalytic system for municipal sewage according to claim 2, wherein: the contact oxidation tank is communicated with the inclined tube sedimentation tank through a fifth conduit.
4. The dissolved air catalytic system for municipal sewage according to claim 3, wherein: the outer surfaces of the inclined tube sedimentation tank, the contact oxidation tank and the aeration adjusting tank are provided with sealing covers, and the sealing covers above the aeration adjusting tank and the contact oxidation tank are communicated with a third conduit through control valves.
5. The dissolved air catalytic system for municipal sewage according to claim 3, wherein: the aeration adjusting tank is communicated with the contact oxidation tank through a fourth conduit, the contact oxidation tank is communicated with a sludge tank through a sixth conduit, the sludge tank is communicated with the inclined tube sedimentation tank through a conduit, and the inclined tube sedimentation tank is communicated with the catalytic tank through a conduit.
6. The dissolved air catalytic system for municipal sewage according to claim 3, wherein: the inclined tube sedimentation tank is communicated with the dissolved gas system through a fifth conduit, the inclined tube sedimentation tank is communicated with one end of a seventh conduit through the fifth conduit, and the other end of the seventh conduit is communicated with the gas generator.
7. The dissolved air catalytic system for municipal sewage according to claim 6, wherein: the output end of the air dissolving system is communicated with the input end of the clean water tank, and a liquid discharge pump is arranged in the clean water tank.
8. The use of a dissolved air catalytic system for municipal sewage according to any one of claims 1 to 7, comprising the following application methods:
s1, operating through the air dissolving system, so that the ozone is uniformly dissolved into the water through the air dissolving system;
s2, when the sewage enters the catalytic tank, further catalytic treatment of the sewage is realized by adjusting the positive and negative electrodes between the positive and negative electrodes;
s3, part of sewage treated by the gas dissolving system enters a catalytic tank with ozone, is disinfected after being converged with the sewage in the catalytic tank and is discharged into a clear water tank, in the step, positive and negative electrodes generate ferrous ions through positive and negative electrodes to carry out homogeneous catalysis on organic matters, COD (chemical oxygen demand) and refractory organic matters in the wastewater are treated through the heterogeneous catalysis function of an ozone catalyst and ozone and the homogeneous catalysis effect generated by the ferrous ions generated by the positive and negative electrodes, and the ozone in the sewage is released by the catalytic tank through the heterogeneous catalysis function of the ozone catalyst and the ozone and then is recycled and input into the gas dissolving tank again;
s4, discharging the settled substances into a sludge tank, and rolling and forming to discharge.
CN202210700448.9A 2022-06-20 2022-06-20 Dissolved air catalytic system for municipal sewage and application thereof Pending CN114956298A (en)

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Application Number Priority Date Filing Date Title
CN202210700448.9A CN114956298A (en) 2022-06-20 2022-06-20 Dissolved air catalytic system for municipal sewage and application thereof

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100087609A (en) * 2009-01-28 2010-08-05 권오석 Sewage Treatment System Supported by Ozone and Cocatalyst Composition
CN208071544U (en) * 2018-03-16 2018-11-09 天津邦盛净化设备工程有限公司 A kind of railway communication system production wastewater treatment system
CN110818205A (en) * 2019-12-03 2020-02-21 鞍钢集团工程技术有限公司 System and process for reducing concentration of pollutants in steel comprehensive wastewater
CN111470676A (en) * 2020-05-14 2020-07-31 北京贝蓝特环保科技有限公司 System and method for treating industrial wastewater by ozone ceramic membrane coupling oxidation technology
CN212151749U (en) * 2020-04-01 2020-12-15 南京合一环境技术有限公司 High-efficient ozone catalytic oxidation processing apparatus of high salt waste water

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100087609A (en) * 2009-01-28 2010-08-05 권오석 Sewage Treatment System Supported by Ozone and Cocatalyst Composition
CN208071544U (en) * 2018-03-16 2018-11-09 天津邦盛净化设备工程有限公司 A kind of railway communication system production wastewater treatment system
CN110818205A (en) * 2019-12-03 2020-02-21 鞍钢集团工程技术有限公司 System and process for reducing concentration of pollutants in steel comprehensive wastewater
CN212151749U (en) * 2020-04-01 2020-12-15 南京合一环境技术有限公司 High-efficient ozone catalytic oxidation processing apparatus of high salt waste water
CN111470676A (en) * 2020-05-14 2020-07-31 北京贝蓝特环保科技有限公司 System and method for treating industrial wastewater by ozone ceramic membrane coupling oxidation technology

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