CN213865686U - Device for treating industrial high-concentration wastewater by plasma ozone generation technology - Google Patents
Device for treating industrial high-concentration wastewater by plasma ozone generation technology Download PDFInfo
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- CN213865686U CN213865686U CN202022370706.0U CN202022370706U CN213865686U CN 213865686 U CN213865686 U CN 213865686U CN 202022370706 U CN202022370706 U CN 202022370706U CN 213865686 U CN213865686 U CN 213865686U
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- 239000002351 wastewater Substances 0.000 title claims abstract description 28
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000005516 engineering process Methods 0.000 title claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 37
- 238000005189 flocculation Methods 0.000 claims abstract description 13
- 230000016615 flocculation Effects 0.000 claims abstract description 13
- 230000003647 oxidation Effects 0.000 claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 11
- 230000029219 regulation of pH Effects 0.000 claims abstract description 5
- 238000001556 precipitation Methods 0.000 claims abstract description 4
- 238000004062 sedimentation Methods 0.000 claims description 17
- 238000005276 aerator Methods 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 10
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 7
- 239000011790 ferrous sulphate Substances 0.000 claims description 7
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 7
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 7
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 7
- 239000010453 quartz Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 238000009300 dissolved air flotation Methods 0.000 claims description 5
- 239000008394 flocculating agent Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 35
- 238000000034 method Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 9
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 5
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000001089 mineralizing effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 13
- 150000002500 ions Chemical class 0.000 description 11
- 239000002245 particle Substances 0.000 description 11
- 239000007788 liquid Substances 0.000 description 9
- -1 hydroxyl radicals Chemical class 0.000 description 8
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 6
- 239000002101 nanobubble Substances 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 239000012028 Fenton's reagent Substances 0.000 description 4
- 238000005842 biochemical reaction Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000001376 precipitating effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 230000033558 biomineral tissue development Effects 0.000 description 2
- 125000001165 hydrophobic group Chemical group 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000033116 oxidation-reduction process Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model discloses a device of high enriched waste water of plasma ozone generation technology processing industry relates to the waste water treatment field, for reaching above-mentioned purpose, the technical scheme of the utility model including the preliminary treatment reaction tank that communicates in proper order, just flocculation and precipitation pond, broken key reaction tank of oxidation, PH adjust precipitation reaction tank and dissolve gas air supporting reaction tank. The method has the advantages of using less reagent, being suitable for a wider PH regulation range, mineralizing the organic matters more sufficiently, enhancing the water treatment effect, reducing the water treatment cost and having lower cost.
Description
Technical Field
The utility model relates to a device of high enriched waste water of industry is handled to plasma ozone generation technique mainly relates to the waste water treatment field.
Background
At present, the treatment of high-concentration wastewater generally adopts: the Fenton reagent method; the Fenton reagent method is to utilize the strong oxidation-reduction property of ferrous sulfate and hydrogen peroxide to generate hydroxyl radicals for reacting with strong oxidation property aiming at organic pollutants which are particularly difficult to degrade, such as high cod, and generate radicals with organic matters which are difficult to degrade, and finally, the effective oxidative decomposition is carried out (Fenton reagent reaction mechanism). The treatment effect of the Fenton reagent is influenced by the concentration of wastewater pollutants, the pH value of the reaction, the proportion of ferrous sulfate and hydrogen peroxide and the adding concentration of hydrogen peroxide. The scheme has the following technical defects:
1) the used reagent amount is large, and the excessive Fe2+ increases COD in the treated wastewater and generates secondary pollution;
2) the mineralization of organic matters is insufficient, and the formed intermediate product is often more toxic;
3) the pH range is 2.0-4.0, the range is too narrow, and the range of organic pollutant treatment is limited;
4) the treatment cost is high.
SUMMERY OF THE UTILITY MODEL
The not enough of prior art more than, the utility model provides a device of high enriched waste water of industry is handled to plasma ozone generation technique uses reagent still less, is suitable for bigger pH control range, and is more abundant with organic matter mineralization, can strengthen the water treatment effect, reduces water treatment cost, and the cost is lower.
In order to achieve the above purpose, the technical scheme of the utility model is that: comprises a pretreatment reaction tank, a primary flocculation sedimentation tank, an oxidation bond-breaking reaction tank, a pH regulation sedimentation reaction tank and a dissolved air floatation reaction tank which are sequentially communicated.
The technical principle and the beneficial effects of the utility model are as follows:
less reagent is used, the method is suitable for a wider pH adjusting range, the organic matters are mineralized more fully, the water treatment effect can be enhanced, the water treatment cost is reduced, and the cost is lower.
Preferably, the pretreatment reaction tank is provided with a ferrous sulfate solution adding port and a lifting-rotating aerator, the lifting-rotating aerator is arranged at the bottom of the pretreatment reaction tank and used for flocculation purification of sewage, phosphate substances in the sewage can be removed, the content of iron ions in the water is properly increased, the later biochemical reaction is facilitated, and the purpose of full coagulation can be achieved through the lifting-rotating aerator.
Preferably, the primary flocculation sedimentation tank is provided with a flocculating agent adding port, the bottom of the primary flocculation sedimentation tank is provided with a bucket-shaped structure, the bottom of the bucket-shaped structure is provided with a slag discharge port, the flocculating agent destroys the stability of fine particles of suspended matters or other harmful chemical ions, the fine particles of the suspended matters or other harmful chemical ions are contacted with each other and are coagulated together to form floccules, and the floccules are settled and separated, so that the purpose of removing most of pollutants such as suspended matters, Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) in the wastewater is achieved.
Preferably, the bottom of the oxidation bond-breaking reaction tank is provided with a low-temperature plasma quartz tube air source type generator which generates a large amount of O by adopting low-temperature plasma3And OH-and is dissolved in water, so that macromolecular organic matters in the water can be broken into chains instantly, and become easily decomposed micromolecules, so that COD is greatly reduced, and conditions are created for the subsequent biochemical treatment.
Preferably, the pH adjusting and precipitating reaction tank is provided with a calcium hydroxide solution adding port and a pH detection device, and the calcium hydroxide solution is used for adjusting the pH value of the wastewater, precipitating and removing wastewater suspended matters, further reducing CODcr and facilitating the subsequent biochemical reaction.
Preferably, the dissolved air flotation reaction tank is provided with a spray head, the spray head is communicated with an external high-pressure pump through a pipeline, fine bubbles are provided by the spray head to enter the solution, when a large amount of fine bubbles are filled in high-concentration wastewater, solid or liquid particles of a hydrophobic group in the wastewater are adhered to form a water-gas-particle three-phase mixed system, after the particles are adhered to the bubbles, flocs with apparent density smaller than that of the water are formed and float to the water surface, and a scum layer is formed and scraped, so that the process of solid-liquid or liquid-liquid separation is realized, and the aim of removing suspended matters in the wastewater is fulfilled.
Preferably, be equipped with the centrifugal blade that the motor drove in the shower nozzle, centrifugal blade's inlet end with the pipeline intercommunication, centrifugal blade's the end of giving vent to anger with the gas outlet intercommunication of shower nozzle is rotated at a high speed by centrifugal blade, under centrifugal action, makes its inside negative pressure zone that forms, and the air gets into negative pressure zone through the air inlet, falls into peripheral liquid area and central gas area inside the container, gives vent to anger the portion by high-speed rotatory nanometer shower nozzle and evenly cuts into the micro-nano bubble of diameter 5 ~ 30nm with the air. Because the bubbles are fine, the bubble is not influenced by the solubility of air in water and is not limited by external conditions such as temperature, pressure and the like, the bubbles have longer existence time, higher mass transfer efficiency and higher interface zeta potential, and can be excited to generate a large amount of hydroxyl radicals.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments will be briefly described below, it is obvious that the drawings in the following description are only two of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of an embodiment of the present invention;
fig. 2 is a schematic view of a showerhead according to an embodiment of the present invention.
Wherein, the pretreatment reaction tank 1, the primary flocculation sedimentation tank 2, the oxidation bond breaking reaction tank 3, the pH regulation sedimentation reaction tank 4, the dissolved air flotation reaction tank 5, the spray head 6, the centrifugal blade 7 and the pipeline 8.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely preferred embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
As shown in figure 1, the embodiment of the utility model comprises a pretreatment reaction tank 1, a primary flocculation sedimentation tank 2, an oxidation bond breaking reaction tank 3, a pH regulation sedimentation reaction tank 4 and a dissolved air floatation reaction tank 5 which are sequentially communicated.
The pretreatment reaction tank 1 is provided with a ferrous sulfate solution adding port and a lifting-rotating aerator, the lifting-rotating aerator is arranged at the bottom of the pretreatment reaction tank 1, the ferrous sulfate solution is added into the tank through the ferrous sulfate solution adding port and is used for flocculation purification of sewage, phosphate substances in the sewage can be removed, the content of iron ions in the water is properly improved, the later biochemical reaction is facilitated, and the purpose of full coagulation can be achieved through the lifting-rotating aerator.
The primary flocculation sedimentation tank 2 is provided with a flocculating agent adding port, the bottom of the primary flocculation sedimentation tank 2 is provided with a hopper-shaped structure, the bottom of the hopper-shaped structure is provided with a slag discharge port, and through aeration dissolved oxygen oxidation and coagulation treatment, coarse suspended particles with larger particles in sewage can be removed by natural sedimentation (certain sedimentation time and space need to be given), but the more tiny suspended particles, even certain harmful chemical ions, especially colloid particles, are settled slowly, even can keep a dispersed suspended state in water for a long time and cannot settle naturally, and are difficult to separate and remove from the water by a natural sedimentation method. The flocculating agent destroys the stability of fine particles of the suspended matters or other harmful chemical ions, the fine particles and other harmful chemical ions are contacted with each other to be coagulated together to form floccules, and the floccules are settled and separated, so that the purpose of removing most of the suspended matters, Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD) and other pollutants in the wastewater is achieved.
The bottom of the oxidation key-breaking reaction tank 3 is provided with a low-temperature plasma quartz tube air source type generator, the low-temperature plasma quartz tube air source type (ozone) generator uses high-voltage high-frequency current with certain frequency to manufacture a high-voltage corona electric field, so that oxygen molecules in the electric field or around the electric field are subjected to electrochemical reaction to generate ozone and hydroxyl radicals, and the equipment and the technology have the characteristics of advanced and mature technology, stable work, long service life and large amount of generated ozone and hydroxyl radicals.
When low-temperature plasma corona discharge is adopted for ozone discharge, a quartz tube discharge body is adopted, the yield of ozone is high, the concentration is high, the functions of a power supply system and a cooling system can be exerted to the greatest extent, over-temperature over-current circuit protection is adopted, the whole machine is made of stainless steel, and the ozone generator has the characteristics of stability, high efficiency and ultra-long service life.
The low-temperature plasma is adopted to generate a large amount of O3 and OH < - > which are dissolved in water, so that macromolecular organic matters in the water are immediately broken into small molecules which are easy to decompose, COD is greatly reduced, and conditions are created for the subsequent biochemical treatment.
The pH adjusting and precipitating reaction tank 4 is provided with a calcium hydroxide solution adding port and a pH detection device, a calcium hydroxide solution is added into the adjusting and precipitating tank, the pH value is adjusted to 7-9, and the purpose of full precipitation is achieved. The aeration time of the wastewater in the adjusting tank is 2 hours, and besides the calcium hydroxide solution is used for adjusting the pH value of the wastewater, the calcium hydroxide solution is precipitated to remove suspended matters in the wastewater, so that the CODcr is further reduced, and the subsequent biochemical reaction is facilitated.
The dissolved air flotation reaction tank 5 is provided with a spray head 6, the spray head 6 is communicated with an external high-pressure pump through a pipeline 8, fine bubbles are supplied to the solution through the spray head, when a large amount of fine bubbles are filled in high-concentration wastewater, solid or liquid particles of a hydrophobic group in the adhesion wastewater form a water-gas-particle three-phase mixed system, after the particles adhere to the bubbles, flocs with apparent density smaller than that of the water are formed and float to the water surface, and a scum layer is scraped, so that the process of solid-liquid or liquid-liquid separation is realized, and the purpose of removing suspended matters in the wastewater is achieved.
Be equipped with the centrifugal blade 7 that the motor drove in the shower nozzle 6, the inlet end of centrifugal blade 7 with pipeline 8 intercommunication, centrifugal blade 7 give vent to anger the end with the gas outlet intercommunication of shower nozzle is rotated at a high speed by centrifugal blade, under the centrifugal action, makes its inside negative pressure zone that forms, and the air gets into negative pressure zone through the air inlet, falls into peripheral liquid area and central gas area inside the container, gives vent to anger the portion by the rotatory nanometer shower nozzle of high speed and evenly cuts into the micro-nano bubble of diameter 5 ~ 30nm with the air. The bubbles are fine, so that the air bubble is not influenced by the solubility of air in water and is not limited by external conditions such as temperature, pressure and the like.
After the common bubbles are generated in the water body, the common bubbles quickly rise to the water surface and are broken and disappear, and the existence time of the bubbles is short; once micro-nano bubbles are generated, the rising speed in water is slow, the process from generation to rupture usually reaches tens of seconds or even minutes, and the volume is continuously reduced in the rising process and finally dissolved and disappeared in water, as shown in the figure. For micro-nano bubbles, the rising speed of the bubbles in water is slower when the volume is smaller, for example: the rising speed of bubbles with the diameter of 1mm in water is 6m/min, while the rising speed of bubbles with the diameter of 10^ m in water is 3mm/min, and the latter is 1/2000 of the former.
Secondly, the mass transfer efficiency is high, and when the diameter of the bubble is small, the influence of the surface tension at the interface of the micro bubble on the characteristics of the bubble is more obvious. The surface tension generates compression action on the internal gas, so that the micro-bubbles continuously shrink in the rising process and show self-pressurization effect. Theoretically, as the diameter of the bubble is infinitely reduced, the specific surface area of the bubble interface is also infinitely increased, and finally, the internal air pressure can be increased to be infinite due to the self-pressurization effect. That is, bubbles typically about 10um in diameter, plus ambient pressure of about 0.3 atmospheres. When the size of the bubbles is reduced to about 1 μm, the pressure is increased to about 3 atm; and the pressure is increased to about 30 atm when the diameter of the bubble is as small as 100 nm. Therefore, in the process of volume contraction of the micro-bubbles, as the specific surface area and the internal air pressure are continuously increased, more gas penetrates through the bubble interface to be dissolved into water, the effect of the surface tension is more and more obvious along with the reduction of the diameter of the bubbles, and finally the internal pressure reaches a certain limit value to cause the bubble interface to break and disappear.
And thirdly, the zeta potential of the interface is high, a double electric layer can be formed by the charged ions around the micro-nano bubble interface, and negatively charged surface charged ions such as OH & lt- & gt are adsorbed on the surface of the bubble. Around the surface charge ion layer, positively charged counter charge ion layer such as H is distributed due to electric attraction3O +, etc., as shown in the figure (H + is H in the figure)3O +. The potential difference generated by the surface charge of the microbubbles is often characterized by the zeta potential, which is an important factor in determining the adsorption properties of the interface of the bubbles. The smaller the volume of the air bubble is, the higher the zeta potential generated at the interface is, and the adsorption performance to the charged particles in the water body is correspondingly improvedThe better. As the microbubbles shrink in water, the charged ions get rapidly concentrated and concentrated at the very narrow bubble interface, as shown by a significant increase in zeta potential, which can lead to very high values of zeta potential at the interface before the bubbles collapse.
And fourthly, at the moment of breaking of the micro bubbles releasing free radicals, high-concentration ions accumulated on the interface release the accumulated chemical energy at one stroke due to the violent change of disappearance of the gas-liquid interface, and at the moment, a large amount of hydroxyl free radicals can be generated through excitation.
The hydroxyl free radical has ultrahigh oxidation-reduction potential, and the generated super-strong oxidation can degrade pollutants such as phenol and the like which are difficult to oxidize and decompose under normal conditions in water, so that the water quality purification effect is realized. It has been confirmed from the research results that using ozone as the microbubble carrier gas more easily generates a large amount of hydroxyl radicals, and it is noted that although ozone has strong oxidizing property, it cannot itself oxidize and decompose some organic substances, such as polyvinyl alcohol, etc., but when ozone is used in combination with the microbubble technology, it can effectively oxidize these organic substances, which are not degradable, into inorganic substances in a short time.
The scheme uses less reagents, is suitable for a larger pH adjusting range, mineralizes organic matters more sufficiently, can enhance the water treatment effect, reduces the water treatment cost and improves the economic benefits of enterprises.
The lifting rotary aerator is also called as a lifting rotary aerator, and the lifting rotary aerator and the low-temperature plasma quartz tube air source type generator are common devices and can be directly purchased in the market, so the details are not repeated. The liftable rotational flow aerator adopts ys-11 for treating spring water, the low-temperature plasma quartz tube air source type generator adopts TWD1000, and the pH detection device adopts MIK-pH6.0.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The device for treating industrial high-concentration wastewater by using the plasma ozone generation technology is characterized by comprising a pretreatment reaction tank (1), a primary flocculation sedimentation tank (2), an oxidation bond breaking reaction tank (3), a pH regulation sedimentation reaction tank (4) and a dissolved air flotation reaction tank (5) which are sequentially communicated.
2. The device for treating industrial high-concentration wastewater by using the plasma ozone generation technology as claimed in claim 1, is characterized in that: the pretreatment reaction tank (1) is provided with a ferrous sulfate solution adding port and a lifting type aerator, and the lifting type aerator is arranged at the bottom of the pretreatment reaction tank (1).
3. The device for treating industrial high-concentration wastewater by using the plasma ozone generation technology as claimed in claim 1, is characterized in that: the primary flocculation sedimentation tank (2) is provided with a flocculating agent adding port, the bottom of the primary flocculation sedimentation tank (2) is provided with a bucket-shaped structure, and the bottom of the bucket-shaped structure is provided with a slag discharge port.
4. The device for treating industrial high-concentration wastewater by using the plasma ozone generation technology as claimed in claim 1, is characterized in that: the bottom of the oxidation key-breaking reaction tank (3) is provided with a low-temperature plasma quartz tube air source type generator.
5. The device for treating industrial high-concentration wastewater by using the plasma ozone generation technology as claimed in claim 1, is characterized in that: the pH adjusting precipitation reaction tank (4) is provided with a calcium hydroxide solution adding port and a pH detection device.
6. The device for treating industrial high-concentration wastewater by using the plasma ozone generation technology as claimed in claim 1, is characterized in that: the dissolved air flotation reaction tank (5) is provided with a spray head which is communicated with an external high-pressure pump through a pipeline.
7. The device for treating industrial high-concentration wastewater by using the plasma ozone generation technology as claimed in claim 6, is characterized in that: the automatic spraying device is characterized in that a centrifugal blade (7) driven by a motor is arranged in the spray head (6), the air inlet end of the centrifugal blade (7) is communicated with the pipeline (8), and the air outlet end of the centrifugal blade (7) is communicated with the air outlet of the spray head (6).
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| CN202022370706.0U CN213865686U (en) | 2020-10-22 | 2020-10-22 | Device for treating industrial high-concentration wastewater by plasma ozone generation technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022370706.0U CN213865686U (en) | 2020-10-22 | 2020-10-22 | Device for treating industrial high-concentration wastewater by plasma ozone generation technology |
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