CN214004167U - Printing and dyeing wastewater terminal secondary decoloration system - Google Patents

Printing and dyeing wastewater terminal secondary decoloration system Download PDF

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Publication number
CN214004167U
CN214004167U CN202023141483.7U CN202023141483U CN214004167U CN 214004167 U CN214004167 U CN 214004167U CN 202023141483 U CN202023141483 U CN 202023141483U CN 214004167 U CN214004167 U CN 214004167U
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reaction tank
ozone
printing
baffle
annular
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林晓芳
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Fujian Jinlan Environmental Protection Co ltd
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Fujian Jinlan Environmental Protection Technology Co ltd
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Abstract

The application relates to a printing and dyeing wastewater tail end secondary decoloring system which comprises a reaction tank, wherein an aeration device used for adding ozone is arranged in the reaction tank, the aeration device is positioned at the bottom of the reaction tank, and the outer side of the aeration device is connected with an ozone generator; a rotating motor is fixed at the top of the reaction tank, an output shaft of the rotating motor penetrates through the reaction tank and is connected with a stirring shaft, and the stirring shaft is provided with stirring blades which are spiral along the height direction of the reaction tank; a plurality of annular partition plates are arranged at intervals along the height direction of the reaction tank, and the annular partition plates are positioned on the outer sides of the stirring blades; the bottom of the reaction tank is connected with a water inlet pipeline, and the upper part of the reaction tank is connected with a water outlet pipeline. The utility model provides a terminal secondary decoloration system of printing and dyeing wastewater can improve the area of contact of ozone and waste water, has prolonged the time that ozone stays in the retort to improve waste water treatment's efficiency.

Description

Printing and dyeing wastewater terminal secondary decoloration system
Technical Field
The application relates to the field of wastewater treatment, in particular to a printing and dyeing wastewater terminal secondary decoloring system.
Background
Printing and dyeing wastewater is a main source of pollution in the textile industry. The printing and dyeing wastewater generally has large discharge amount, high chroma and pollution degree, and the color groups in the colored substances are usually: vinyl, azo, azoxy, carboxyl, thiocarboxyl, nitro, nitroso, etc. The existing dyeing wastewater is decolorized by ozone, and the unsaturated bonds of the existing dyeing wastewater can be opened by the ozone through oxidation reaction so that the existing dyeing wastewater loses color development capability.
The related patents at present disclose an ozone catalytic oxidation tower, which comprises a tower body, wherein a bearing plate is arranged in the tower body, and catalyst filler is filled on the bearing plate to form a catalyst filler layer; the tower body is provided with a stirring paddle and a motor for driving the stirring paddle to rotate, the stirring paddle is positioned in the tower, and blades of the stirring paddle are arranged in the catalyst filler layer; the lower part of the inner wall of the tower body is provided with an ozone inlet pipe orifice.
In view of the above-mentioned related art, the inventors consider that the following drawbacks exist:
ozone enters the tower body from the ozone inlet pipe opening and is mixed with sewage to react, however, the rising speed of ozone in the wastewater is very high, and ozone belongs to gas which is difficult to dissolve in water, so that the reaction of ozone and sewage in the tower is insufficient, and the efficiency of wastewater treatment is low.
SUMMERY OF THE UTILITY MODEL
In order to improve the efficiency of waste water treatment, the application provides a printing and dyeing waste water terminal secondary decoloration system.
The application provides a printing and dyeing wastewater terminal secondary decoloration system adopts following technical scheme:
a secondary decoloration system for the tail end of printing and dyeing wastewater comprises a reaction tank, wherein an aeration device used for adding ozone is arranged in the reaction tank, the aeration device is positioned at the bottom of the reaction tank, and the outer side of the aeration device is connected with an ozone generator; a rotating motor is fixed at the top of the reaction tank, an output shaft of the rotating motor penetrates through the reaction tank and is connected with a stirring shaft, and the stirring shaft is provided with a stirring blade which is spiral along the height direction of the reaction tank; the reaction tank is provided with a plurality of annular partition plates at intervals along the height direction, and the annular partition plates are positioned on the outer sides of the stirring blades; the bottom of the reaction tank is connected with a water inlet pipeline, and the upper part of the reaction tank is connected with a water outlet pipeline.
By adopting the technical scheme, the wastewater enters the reaction tank through the water inlet pipeline, the ozone generator generates ozone and fills the ozone into the reaction tank through the aeration device, the ozone and the wastewater are mixed and carry out oxidation reaction, so that the chromogenic substances in the wastewater are oxidized, and the function of decoloring is realized.
The bubbles of the ozone filled into the reaction tank through the aeration device have larger volume, the density of the ozone is far less than that of water, and the bubbles of the ozone move upwards due to buoyancy; when the ozone bubbles move to the stirring blade, the stirring blade rotates under the driving of the rotating motor and breaks up the ozone bubbles, so that the volume of the ozone bubbles is reduced, the contact area of the ozone bubbles and the wastewater is increased, the reaction speed of ozone and the wastewater is increased, and the wastewater treatment efficiency is improved.
In addition, stirring paddle's rotation can promote waste water and ozone to the inner wall of retort, can receive blockking of annular partition plate when ozone rises this moment, has prolonged the time that ozone stays in the waste water to the reaction time of ozone with waste water has been prolonged, has improved the efficiency of unit volume's ozone treatment waste water.
Optionally, the annular partition plate is inclined downwards along the height direction of the reaction tank.
Through adopting foretell technical scheme, annular baffle is along the direction of height downward sloping of retort, and the lower surface of annular baffle forms the contained angle region that a section contained angle is the acute angle with the inner wall of retort, and when ozone received stirring paddle's promotion entering contained angle region, ozone upward movement just gathers in the contained angle department in the contained angle region more easily, can further prolong the reaction time of ozone and waste water, improves waste water treatment's efficiency.
Optionally, a plurality of the annular partition plates are provided with a diversion mechanism for guiding the flow direction of wastewater at intervals, the annular partition plate below the two annular partition plates provided with the diversion mechanism is provided with a plurality of diversion holes, and the diversion holes are positioned on one side of the annular partition plate close to the inner wall of the reaction tank.
By adopting the technical scheme, when the stirring paddle blade pushes the wastewater and the ozone to enter the space between the adjacent annular partition plates provided with the flow guide mechanism, the flow guide mechanism can limit the flowing direction of the wastewater, the wastewater flows into the annular partition plate area below through the flow guide holes and moves upwards again, the retention time of the wastewater in the clamp area is prolonged, and therefore the reaction time of the wastewater and the ozone accumulated in the clamp area is prolonged.
Optionally, the flow guide mechanism includes a plurality of baffle assemblies arranged along the extension direction of the annular partition plate, and the adjacent baffle assemblies abut against each other.
Each baffle assembly comprises an upper baffle hinged to the upper annular partition and a lower baffle hinged to the lower annular partition, the sum of the height of the upper baffle and the height of the lower baffle is larger than the distance between the two annular partitions, and one end of each upper baffle and one end of each lower baffle, which are away from the hinged position, face the inner wall of the reaction tank.
And a return spring is arranged between the upper baffle and the annular partition plate hinged with the upper baffle, and a return spring is arranged between the lower baffle and the annular partition plate hinged with the lower baffle.
By adopting the technical scheme, the arrangement of the baffle plate assemblies can enable the flow guide mechanism, the two annular partition plates adjacent to the flow guide mechanism and the inner wall of the reaction tank to form a closed cavity to limit the flow direction of wastewater; the baffle assembly consists of an upper baffle and a lower baffle, the upper baffle and the lower baffle are always abutted under the action of the return spring, and when the water pressure outside the cavity is greater than the water pressure in the cavity, the waste water pushes the baffle assembly open and enters the cavity; when water pressure in the cavity is greater than the outer water pressure of cavity, the direction that can't rotate to being close to stirring paddle leaf after overhead gage and lower baffle support, and waste water will pass through baffle subassembly and get into the cavity from the cavity outer comparatively difficult, and waste water flows to the cavity of lower floor by the water conservancy diversion hole and upward movement again, makes the flow path of waste water obtain the extension, and then the reaction time of extension waste water and ozone.
After waste water and ozone got into the cavity, waste water flowed out by the water conservancy diversion hole, and ozone upward movement to the anchor clamps region and with inside air escape, made the interior ozone of cavity increase gradually to make the waste water treatment effect in the cavity obtain further promotion.
Optionally, a reinforcing plate is fitted to an outer peripheral side of the stirring blade.
Through adopting foretell technical scheme, the vortex effect that stirring paddle leaf can be improved in the setting of reinforcing plate makes waste water and ozone get into between two annular baffles under stirring paddle leaf's drive more easily.
Optionally, a catalyst packing is embedded in the reinforcing plate.
By adopting the technical scheme, the rate of the oxidation reaction of the ozone and the wastewater can be further improved by the arrangement of the catalyst filler, and the efficiency of wastewater treatment is improved.
Optionally, the aeration device comprises a gas pipeline and gas nozzles, one end of the gas pipeline is connected to the gas outlet pipe of the ozone generator, and the plurality of gas nozzles are connected to the other end of the gas pipeline; the gas nozzles are positioned in the reaction tank, and a plurality of the gas nozzles are circumferentially distributed around the central axis of the reaction tank.
By adopting the technical scheme, the ozone generator can provide ozone for the reaction tank, the ozone enters the reaction tank through the gas pipeline and is sprayed out by the gas nozzle, so that the volume of ozone bubbles entering the wastewater is smaller, the contact area of the ozone and the wastewater is increased, and the effect of oxidation reaction is improved; the gas nozzles are arranged circumferentially around the central axis of the reaction tank, so that the ozone bubbles in the reaction tank are relatively uniform.
Optionally, the system comprises a plurality of groups of reaction tanks, wherein a fluid pipeline is connected between every two adjacent reaction tanks, and a water pump is installed on the fluid pipeline; each reaction tank is provided with an aeration device and an ozone generator, and the ozone content of each ozone generator is different.
By adopting the technical scheme, after a plurality of groups of reaction tanks are arranged, wastewater passes through the reaction tanks one by one, so that the wastewater can be reacted with ozone completely, and the cleanliness of the treated wastewater is greatly improved; the oxygen content of different ozone generators is set to be different, so that the ozone degradation device is used for degrading certain colored substances which can react quickly only under specific ozone concentration.
Optionally, the system further comprises a circulation tank, wherein the circulation tank is connected to the water inlet pipeline of the first group of reaction tanks; each equal upper portion of retort all is connected with the circulating line, each the circulating line all connects in the circulating tank.
By adopting the technical scheme, the circulating pipeline is used for collecting the ozone moving upwards, and the collected ozone is input into the circulating tank, so that the utilization rate of the ozone can be improved, and the waste of the ozone is reduced; the ozone concentration in the circulating pipe can not be controllably regulated, so that the circulating tank is connected to the front end of the first group of reaction tanks and is used for carrying out primary decolorization treatment on the wastewater flowing through the circulating tank.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the stirring action of the stirring paddle can disperse the ozone bubbles with larger volume into a state with smaller volume, so that the contact area of the ozone bubbles and the wastewater is increased, and the reaction speed of ozone and the wastewater treatment efficiency are improved;
2. the arrangement of the annular partition plate prolongs the time of the ozone staying in the wastewater, thereby prolonging the reaction time of the ozone and the wastewater and improving the efficiency of treating the wastewater by the ozone in unit volume;
3. the setting of circulating tank can carry out preliminary treatment to waste water, improves the utilization ratio of ozone, reduces the waste of ozone.
Drawings
FIG. 1 is an overall block diagram of an embodiment of the present application;
FIG. 2 is an internal structural view of an embodiment of the present application, which mainly shows the structure of a stirring blade and a reinforcing plate;
FIG. 3 is another internal structural view of the embodiment of the present application, which mainly embodies the structure of the annular partition plate;
fig. 4 is a schematic structural diagram of a baffle plate assembly in an embodiment of the present application.
Description of reference numerals: 1. a reaction tank; 11. a water inlet pipe; 12. a water outlet pipeline; 13. a fluid conduit; 14. a circulation pipe; 15. an annular partition plate; 151. a flow guide hole; 152. a baffle assembly; 1521. an upper baffle plate; 1522. a lower baffle plate; 1523. a return spring; 2. an aeration device; 21. a gas conduit; 22. a gas shower; 3. an ozone generator; 4. rotating the motor; 41. a stirring shaft; 42. a stirring paddle; 43. a reinforcing plate; 431. a catalyst filler; 5. and (4) circulating the tank.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses printing and dyeing wastewater terminal secondary decoloration system.
Referring to fig. 1, the printing and dyeing wastewater terminal secondary decoloring system comprises a circulating tank 5 and three groups of reaction tanks 1, wherein the three groups of reaction tanks 1 are sequentially arranged side by side; the printing and dyeing wastewater passes through the circulating tank 5 and the three groups of reaction tanks 1 in sequence, so that secondary decolorization is carried out on the wastewater.
Referring to fig. 1, the bottom of each reaction tank 1 is connected with a water inlet pipe 11, the upper part of each reaction tank 1 is connected with a water outlet pipe 12, the water outlet pipe 12 of each reaction tank 1 is communicated with the water inlet pipe 11 of the adjacent reaction tank 1 through a fluid pipe 13 according to the wastewater treatment sequence, and connecting flanges for connecting pipelines are arranged between the fluid pipe 13 and the water outlet pipe 12, and between the fluid pipe 13 and the water inlet pipe 11; and each fluid pipeline 13 is provided with a water suction pump, and wastewater in one group of reaction tanks 1 is sequentially pumped into the other group of reaction tanks 1 through the water suction pumps.
Referring to fig. 1, the upper part of each reaction tank 1 is connected with a circulation pipeline 14, and the circulation pipeline 14 is positioned above the water outlet pipeline 12; three sets of circulating line 14 converge and connect in circulating tank 5 for collect the ozone that rises in three sets of retort 1, and carry out reutilization in letting in circulating tank 5 with the ozone after collecting, thereby carry out preliminary decoloration to waste water.
Referring to fig. 1 and 2, each reaction tank 1 is internally provided with an aeration device 2, and each aeration device 2 is connected with an ozone generator 3 for generating ozone; the three groups of ozone generators 3 connected with the three groups of reaction tanks 1 have different ozone concentrations, so that different kinds of colored substances can be quickly reacted and degraded under the condition that the ozone concentrations are suitable for the respective ozone concentrations, and the efficiency of wastewater treatment is greatly improved.
Referring to fig. 2, the aeration apparatus 2 includes a gas pipe 21 and a gas shower 22; the gas pipeline 21 penetrates through the bottom wall of the reaction tank 1, one end, located outside the reaction tank 1, of the gas pipeline 21 is connected to a gas inlet pipe of the ozone generator 3, one end, located inside the reaction tank 1, of the gas pipeline 21 is connected with three groups of annular pipelines which are coaxially arranged, and the central axis of each annular pipeline is coincident with the central axis of the reaction tank 1; the three groups of annular pipelines are communicated with each other; a plurality of gas nozzles 22 are arranged, and all the gas nozzles 22 are uniformly distributed in the annular pipeline and used for dispersing ozone entering the reaction tank 1 through the gas pipeline 21 into the reaction tank 1; the nozzles of the gas shower 22 are disposed toward the top of the reaction tank 1.
Referring to fig. 2, a rotating motor 4 is installed at the top of the reaction tank 1, an output shaft of the rotating motor 4 penetrates through the reaction tank 1, and a central axis of the output shaft of the rotating motor 4 coincides with a central axis of the reaction tank 1; the end part of the output shaft of the rotating motor 4 is fixedly connected with a stirring shaft 41, the outer peripheral side of the stirring shaft 41 is fixedly provided with a stirring blade 42, and the stirring blade 42 rotates around the central axis of the reaction tank 1 under the driving of the rotating motor 4 and disturbs the wastewater in the reaction tank 1; the stirring paddle 42 is spiral along the height direction of the reaction tank 1, a plurality of reinforcing plates 43 are embedded on the outer side of the stirring paddle 42, the reinforcing plates 43 are arranged at intervals along the spiral path of the stirring paddle 42, and the height of each reinforcing plate 43 is greater than the thickness of the stirring paddle 42 and is used for increasing the contact area between the stirring paddle 42 and wastewater; the central axis of the reinforcing plate 43 is perpendicular to the central axis of the reaction tank 1, and a catalyst filler 431 is embedded on one side of the reinforcing plate 43 facing the inner wall of the reaction tank 1 and used for improving the reaction rate of ozone and wastewater; the stirring paddle 42, the stirring shaft 41 and the reinforcing plate 43 in the embodiment of the present application are welded integrally.
Referring to fig. 3, the inner wall of the reaction tank 1 is fixedly connected with four annular partition plates 15, and the four annular partition plates 15 are all positioned below the water outlet pipeline 12; the four annular partition plates 15 are arranged at equal intervals along the height direction of the reaction tank 1, and each annular partition plate 15 is obliquely downwards arranged along the height direction of the reaction tank 1; and a cavity for accumulating ozone and waste water is formed between the adjacent annular partition plates 15 and is used for prolonging the retention and reaction time of the ozone in the waste water.
Referring to fig. 3, a plurality of flow guide holes 151 are formed in the annular partition 15 located at the lowermost layer and the third annular partition 15 located from bottom to top among the four annular partitions 15, the plurality of flow guide holes 151 are all located at one side of the annular partition 15 close to the inner wall of the reaction tank 1, and the plurality of flow guide holes 151 are arranged around the annular partition 15; each baffle extends through a corresponding annular partition 15.
Referring to fig. 3, a flow guide mechanism for guiding the flow of the wastewater is installed between the annular partition plate 15 provided with the flow guide holes 151 and the adjacent annular partition plate 15 located above the annular partition plate 15, the flow guide mechanism includes a plurality of sets of baffle assemblies 152 uniformly arranged along the extension direction of the annular partition plate 15, and the adjacent baffle assemblies 152 are abutted against each other.
Referring to fig. 4, each baffle plate assembly 152 includes an upper baffle plate 1521 and a lower baffle plate 1522, the upper baffle plate 1521 is hinged to the upper annular partition plate 15 of the two annular partition plates 15 adjacent to the baffle plate assembly 152; the lower baffle 1522 is hinged to the lower annular partition 15 of the two annular partitions 15 adjacent to the baffle assembly 152; the sum of the height of the upper baffle 1521 and the height of the lower baffle 1522 is greater than the distance between the two annular partition plates 15, and the ends of the upper baffle 1521 and the lower baffle 1522, which are away from the respective hinged positions, face the inner wall of the reaction tank 1, so that the upper baffle 1521 and the lower baffle 1522 are mutually overlapped, and the upper baffle 1521 and the lower baffle 1522 can only be opened towards one side of the inner wall of the reaction tank 1.
Referring to fig. 4, a return spring 1523 is connected between the upper baffle 1521 and the corresponding hinged annular partition 15, so that the upper baffle 1521 has a force normally approaching the lower baffle 1522; be connected with reset spring 1523 between lower baffle 1522 and the corresponding articulated annular baffle 15, make lower baffle 1522 have the normal state and be close to the power of last baffle 1521 to make last baffle 1521 and lower baffle 1522 can the normal state offset.
Referring to fig. 4, a closed chamber is formed between the inner wall of the reaction tank 1, the flow guide mechanism and two adjacent annular partition plates 15, and when the water pressure outside the chamber is greater than the water pressure inside the chamber, the wastewater pushes the upper baffle 1521 and the lower baffle 1522 and enters the chamber; when the water pressure in the cavity is greater than the water pressure outside the cavity, because the upper baffle 1521 and the lower baffle 1522 abut against each other, the upper baffle 1521 and the lower baffle 1522 cannot rotate towards the direction close to the stirring paddle 42, and the wastewater flows into the cavity on the lower layer through the diversion holes 151 and moves upwards again, so that the flow path of the wastewater is prolonged, and the reaction time of the wastewater and ozone is further prolonged.
The implementation principle of the printing and dyeing wastewater terminal secondary decoloring system in the embodiment of the application is as follows:
when the wastewater is treated, the wastewater flows through the circulating tank 5, and the ozone collected in the circulating tank 5 and the wastewater are subjected to oxidation reaction to primarily decolorize the wastewater; the wastewater sequentially flows through the reaction tanks 1 with different ozone concentrations to carry out secondary decolorization treatment on the wastewater, so that the decolorization effect of colored substances contained in the wastewater is greatly improved, the wastewater is clean, and the wastewater meets the discharge standard.
When the waste water flowing through the reaction tank 1 is stirred by the stirring blades 42 in the reaction tank 1, the waste water moves towards the inner wall of the reaction tank 1 and enters the cavity through the baffle plate assembly 152, and flows out from the flow guide holes 151 of the annular partition plate 15, so that the reaction time of the waste water and the ozone is prolonged, and the reaction efficiency of the waste water and the ozone is greatly improved.
The above is a preferred embodiment of the present application, and the scope of protection of the present application is not limited by the above, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a terminal secondary decoloration system of printing and dyeing wastewater which characterized in that: the ozone water treatment device comprises a reaction tank (1), wherein an aeration device (2) for adding ozone is installed in the reaction tank (1), the aeration device (2) is positioned at the bottom of the reaction tank (1), and the outer side of the aeration device (2) is connected with an ozone generator (3); a rotating motor (4) is fixed at the top of the reaction tank (1), an output shaft of the rotating motor (4) penetrates through the reaction tank (1) and is connected with a stirring shaft (41), a stirring blade (42) is installed on the stirring shaft (41), and the stirring blade (42) is spiral along the height direction of the reaction tank (1); a plurality of annular partition plates (15) are arranged at intervals in the height direction of the reaction tank (1), and the annular partition plates (15) are positioned on the outer sides of the stirring blades (42); the bottom of the reaction tank (1) is connected with a water inlet pipeline (11), and the upper part of the reaction tank (1) is connected with a water outlet pipeline (12).
2. The printing and dyeing wastewater terminal secondary decoloring system according to claim 1, wherein: the annular partition plate (15) inclines downwards along the height direction of the reaction tank (1).
3. The printing and dyeing wastewater terminal secondary decoloring system according to claim 2, wherein: a plurality of the interval is equipped with the water conservancy diversion mechanism that is used for guiding waste water flow direction between annular baffle (15), is equipped with annular baffle (15) that lie in the below in two annular baffles (15) of water conservancy diversion mechanism are equipped with a plurality of water conservancy diversion holes (151), water conservancy diversion hole (151) are located one side that annular baffle (15) are close to retort (1) inner wall.
4. The printing and dyeing wastewater terminal secondary decoloring system according to claim 3, wherein: the flow guide mechanism comprises a plurality of groups of baffle plate assemblies (152) arranged along the extension direction of the annular partition plate (15), and the adjacent baffle plate assemblies (152) are abutted;
each baffle plate assembly (152) comprises an upper baffle plate (1521) hinged to the upper annular baffle plate (15) and a lower baffle plate (1522) hinged to the lower annular baffle plate (15), the sum of the height of the upper baffle plate (1521) and the height of the lower baffle plate (1522) is larger than the distance between the two annular baffle plates (15), and one ends of the upper baffle plate (1521) and the lower baffle plate (1522) departing from the hinged parts of the upper baffle plate and the lower baffle plate face the inner wall of the reaction tank (1);
go up baffle (1521) and articulated annular baffle (15) that have this last baffle (1521) between install reset spring (1523), all install reset spring (1523) down between baffle (1522) and the annular baffle (15) that have this lower baffle (1522) articulated.
5. The printing and dyeing wastewater terminal secondary decoloring system according to claim 1, wherein: a reinforcing plate (43) is fitted to the outer peripheral side of the stirring blade (42).
6. The printing and dyeing wastewater terminal secondary decoloring system according to claim 5, wherein: the reinforcing plate (43) is embedded with a catalyst packing (431).
7. The printing and dyeing wastewater terminal secondary decoloring system according to claim 1, wherein: the aeration device (2) comprises a gas pipeline (21) and gas nozzles (22), one end of the gas pipeline (21) is connected with a gas outlet pipe of the ozone generator (3), and the gas nozzles (22) are connected with the other end of the gas pipeline (21); the gas shower nozzle (22) is located retort (1), and a plurality of gas shower nozzle (22) are the circumference around the axis of retort (1) and distribute.
8. The printing and dyeing wastewater terminal secondary decoloring system according to claim 7, wherein: the device comprises a plurality of groups of reaction tanks (1), wherein fluid pipelines (13) are connected between every two adjacent reaction tanks (1), and water pumps are installed on the fluid pipelines (13); each reaction tank (1) is provided with an aeration device (2) and an ozone generator (3), and the ozone content of each ozone generator (3) is different.
9. The printing and dyeing wastewater terminal secondary decoloring system according to claim 8, wherein: the reactor also comprises a circulating tank (5), wherein the circulating tank (5) is connected with a water inlet pipeline (11) of the first group of reaction tanks (1); the upper parts of the reaction tanks (1) are connected with circulating pipelines (14), and each circulating pipeline (14) is connected to a circulating tank (5).
CN202023141483.7U 2020-12-23 2020-12-23 Printing and dyeing wastewater terminal secondary decoloration system Active CN214004167U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114057281A (en) * 2021-11-24 2022-02-18 福建省晋蓝环保科技有限公司 Equipment for improving utilization of tail gas of ozone contact tower
WO2024005743A1 (en) * 2022-12-30 2024-01-04 Akbaşlar Teksti̇l Enerji̇ Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Ozone-fed contact tank system and method for decolorization of waste process water

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114057281A (en) * 2021-11-24 2022-02-18 福建省晋蓝环保科技有限公司 Equipment for improving utilization of tail gas of ozone contact tower
CN114057281B (en) * 2021-11-24 2024-05-24 福建省晋蓝环保股份有限公司 Equipment for improving utilization of tail gas of ozone contact tower
WO2024005743A1 (en) * 2022-12-30 2024-01-04 Akbaşlar Teksti̇l Enerji̇ Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Ozone-fed contact tank system and method for decolorization of waste process water

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Address after: 362200 room 402, building 6, Juzhi real estate, No. 565, Meiling Road, Bishan community, Meiling street, Jinjiang City, Quanzhou City, Fujian Province

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