CN212050834U - Coke quenching waste water ozone catalytic oxidation device - Google Patents
Coke quenching waste water ozone catalytic oxidation device Download PDFInfo
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- CN212050834U CN212050834U CN201922394504.7U CN201922394504U CN212050834U CN 212050834 U CN212050834 U CN 212050834U CN 201922394504 U CN201922394504 U CN 201922394504U CN 212050834 U CN212050834 U CN 212050834U
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Abstract
The utility model discloses a quenching waste water ozone catalytic oxidation device, including quenching waste water pond, mixed pond, ozone catalytic oxidation device, the quenching waste water pond is linked together through taking the pump line and mixing the pond, it is linked together through taking valve pipeline and flocculation basin to mix the pond, flocculation basin one side overflow UNICOM has the sedimentation tank, and the sedimentation tank bottom is provided with the mud discharge port, and the mud discharge port is linked together through taking the pipeline of mud delivery pump and sludge thickening pond, and sludge thickening pond bottom has the plate and frame pressure filter through taking pump pipe connection. The utility model discloses a high density clarification tank and ozone catalytic oxidation reactor coprocessing coke quenching waste water, reasonable in design, equipment is simple, and the simple easy operation of flow can satisfy the water pollution emission concentration limit value requirement of enterprise through the play water after handling, and the technology operation is stable, has very strong engineering application and worth.
Description
Technical Field
The utility model relates to a sewage treatment technical field especially relates to a coke quenching waste water ozone catalytic oxidation device.
Background
In the coke production process of coking enterprises, the common coke quenching processes include dry coke quenching and wet coke quenching. In actual production, most enterprises adopt wet quenching. The coke quenching waste water contains a large amount of pollutants, such as CODcr, ammonia nitrogen, volatile phenol, cyanide, SS and the like, and because the coke quenching waste water is always recycled, if the coke quenching waste water is not deeply treated, the pollutants in the water can be indirectly discharged into the atmosphere along with steam in the coke quenching process, so that the quality of the surrounding environment is influenced, and the environmental quality of the surrounding areas of a plant area is influenced. In order to reduce the pollution to the atmospheric environment, the waste water for quenching coke is required to be treated and recycled after each quenching coke.
The main pollutants of the coke quenching wastewater are CODcr, ammonia nitrogen, volatile phenol, cyanide and SS, and the water temperature is higher and is about 60-70 ℃, so the treatment difficulty is higher. The prior common coke quenching wastewater treatment process comprises Fenton oxidation and ozone catalytic oxidation. The traditional Fenton is simple, the decomposition speed of hydrogen peroxide is high, and the oxidation rate is high, however, the Fenton oxidation treatment operation is complex, the operation cost is high, the corrosion prevention requirement is high, a large amount of iron mud is generated in the treatment process, hazardous waste treatment is needed, and the cost is high. Compared with the traditional Fenton oxidation method, the ozone catalytic oxidation technology has the advantages of good treatment effect, convenient continuous operation, wide application range, no secondary pollution and the like, can react with most of organic matters in the waste water and microorganisms rapidly, can remove pollutants such as phenol, cyanogen and the like in the waste water, reduces COD (chemical oxygen demand) and BOD (biochemical oxygen demand) values, and can play a role in decoloring, deodorizing and sterilizing, the optimal temperature of the ozone catalytic oxidation is about 50 ℃, and the temperature of the coke quenching waste water after pretreatment can reach the optimal temperature of the ozone catalytic oxidation, so the ozone catalytic oxidation has good application prospect in the aspect of deep treatment of the coke quenching waste water. However, the existing ozone catalytic oxidation device has the defects of poor gas-liquid mass transfer effect, so that the ozone oxidation technology has high energy consumption and high cost, and on the other hand, the ozone catalytic oxidation reactor has the problems of too much foam, waste of tail gas and the like, so that the further popularization and application of the ozone catalytic oxidation reactor are limited.
Aiming at the problems, the coke quenching wastewater ozone catalytic oxidation device is designed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a quenching waste water ozone catalytic oxidation device possesses and adopts high density depositing reservoir and ozone catalytic oxidation reactor coprocessing quenching waste water, reasonable in design, and equipment is simple, and the simple easy operation of flow, the play water after the processing can satisfy the water pollution emission concentration limit value requirement of enterprise, and the technology operation is stable, has the advantage of very strong engineering application value, has solved the problem that original quenching waste water biochemical treatment can't reach present stage emission standard.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a coke quenching wastewater ozone catalytic oxidation device comprises a coke quenching wastewater pool, a mixing pool and an ozone catalytic oxidation device, wherein the coke quenching wastewater pool is communicated with the mixing pool through a pipeline with a pump, the mixing pool is communicated with a flocculation pool through a pipeline with a valve, and one side of the flocculation pool is communicated with a sedimentation pool in an overflow way;
the bottom of the sedimentation tank is provided with a sludge discharge port, the sludge discharge port is communicated with a sludge concentration tank through a pipeline with a sludge discharge pump, the bottom of the sludge concentration tank is connected with a plate-and-frame filter press through a pipeline with a pump, the lower part of the sedimentation tank above the sludge discharge port is provided with an alum blossom circulation port, the alum blossom circulation port is communicated with the inlet end of a sludge circulating pump, and the outlet end of the sludge circulating pump is communicated with the inlet at the lower end of the flocculation tank through a pipeline with a valve;
the supernatant part of the sedimentation tank is connected with an ozone catalytic oxidation device through a pipeline with a pump;
the ozone catalytic oxidation device comprises a circulating water pump and an ozone catalytic oxidation reactor, an aerator is arranged at the bottom end in the ozone catalytic oxidation reactor, a microporous partition plate is arranged above the aerator, a plurality of guide plates which are installed in a crossed mode are arranged on the side wall of the ozone catalytic oxidation reactor above the microporous partition plate, a continuous S-shaped space is formed among the guide plates, a high-efficiency catalyst is arranged in the continuous S-shaped space, a spray head is arranged above the high-efficiency catalyst in the ozone catalytic oxidation reactor, and the supernatant part of the sedimentation tank is connected with the spray head through a pipeline with a pump in a water supply mode;
be provided with two delivery ports on the ozone catalytic oxidation reactor lateral wall of micropore baffle below and be clear water export, circulation export is linked together through pipeline and circulating water pump's the inlet port, circulating water pump through the area valve pipeline with the shower head is linked together, and the clear water export is connected through pipe and multi-media filter water supply, and multi-media filter's play water end is linked together with the clean water basin.
Further, the aerator is connected with an ozone generator through a pipeline with a flowmeter.
Further, an ozone concentration detector is arranged at the upper part of the ozone catalytic oxidation reactor.
Further, a stirrer is arranged in the mixing tank.
Furthermore, liquid on the upper part of the sludge concentration tank is introduced into an aeration device in the coke quenching wastewater tank through a pipeline with a valve, and wastewater discharged by the plate and frame filter press is discharged into the coke quenching wastewater tank through a pipeline with a valve.
Furthermore, the top of the ozone catalytic oxidation reactor is communicated with the bottom of the coke quenching wastewater pool through a valved ozone tail gas discharge pipe.
Furthermore, the upper part of the sedimentation tank is provided with an inclined tube separation area, and the clear liquid part at the upper part of the inclined tube separation area passes through a pipeline with a pump and a spray header.
Compared with the prior art, the utility model beneficial effect who has is:
1. the high-density clarification tank and the ozone catalytic oxidation reactor are adopted to cooperatively treat the coke quenching wastewater, the design is reasonable, the equipment is simple, the flow is simple and easy to operate, the treated effluent can meet the requirement of the water pollution emission concentration limit value of an enterprise, the process operation is stable, and the engineering application value is very strong;
2. adopting a high-density clarification tank; the high-density clarification tank integrates flocculation, sedimentation and sludge backflow, has fewer devices compared with the traditional coagulation sedimentation tank, is simple and convenient to install and start, and is convenient to operate and maintain; the surface load is high, the occupied area is small, and the effluent quality is good; the sludge reflux amount is convenient to control, the sludge discharge concentration is high, the sludge volume is small, and the treatment is convenient;
3. the tail gas of the ozone catalytic oxidation device is introduced into the bottom of the coke quenching wastewater circulating pool through a pipeline, and residual ozone in the tail gas is quenched through raw coke quenching wastewater, so that the pollution and waste of ozone tail gas are avoided, an additional tail gas damage device is not needed, and the cost is reduced;
4. the reaction rate of the catalytic oxidation of the ozone is greatly improved due to the high catalytic activity of the catalytic oxidation catalyst of the ozone, and the lower half part is provided with the guide plate, so that the reaction path of the gas and the liquid is greatly prolonged, the retention time of the gas is prolonged, and the longer the gas-liquid contact time is, the more the reaction is facilitated;
5. an internal circulating system is arranged in the ozone catalytic oxidation device to promote the reaction to be uniformly carried out; the top end of the device is provided with a spray head for spraying water flow or water drops to break up foam floating on the water surface to reduce the foam, thereby effectively preventing the foam from entering a tail gas treatment pipeline after accumulating;
6. the high-density clarification tank has the advantages of less medicament dosage, no catalyst particle loss and breakage phenomenon of the catalyst adopted by the ozone catalytic oxidation device during the effective operation period of process equipment, no obvious change of specific surface area, pore structure and the like before and after use, no inactivation phenomenon of the catalyst, no need of supplementing and replacing the catalyst, no additional operation cost increase and low total operation cost.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a coke quenching wastewater ozone catalytic oxidation device provided by the utility model.
In the figure: 1-coke quenching wastewater pool, 2-lift pump, 3-mixing pool, 4-stirrer, 5-flocculation pool, 6-inclined tube separation area, 7-sedimentation pool, 8-sludge circulating pump, 9-sludge discharge pump, 10-sludge concentration pool, 11-plate-and-frame filter press, 12-circulating water pump, 13-ozone catalytic oxidation device, 14-aerator, 15-spray head, 16-guide plate, 17-high efficiency catalyst, 18-microporous partition board, 19-ozone tail gas discharge pipe, 20-ozone generator, 21-flowmeter, 22-multimedia filter, 23-clear water pool, 24-ozone concentration detector.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not 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.
Referring to fig. 1, the coke quenching wastewater ozone catalytic oxidation device comprises a coke quenching wastewater pool 1, a mixing pool 3 and an ozone catalytic oxidation device 13, wherein the coke quenching wastewater pool 1 is communicated with the mixing pool 3 through a pipeline with a pump, the mixing pool 3 is communicated with a flocculation pool 5 through a pipeline with a valve, and a sedimentation pool 7 is communicated with one side of the flocculation pool 5 in an overflow way;
the bottom end of the sedimentation tank 7 is provided with a sludge discharge port 27, the sludge discharge port 27 is communicated with the sludge concentration tank 10 through a pipeline with a sludge discharge pump 9, the bottom of the sludge concentration tank 10 is connected with a plate-and-frame filter press 11 through a pipeline with a pump, the lower part of the sedimentation tank 7 above the sludge discharge port is provided with an alum blossom circulation port 28, the alum blossom circulation port 28 is communicated with the inlet end of a sludge circulation pump 8, and the outlet end of the sludge circulation pump 8 is communicated with the inlet at the lower end of the flocculation tank 5 through a pipeline with a valve;
the supernatant part of the sedimentation tank 7 is connected with an ozone catalytic oxidation device 13 through a pipeline with a pump;
the ozone catalytic oxidation device 13 comprises a circulating water pump 12 and an ozone catalytic oxidation reactor, an aerator 14 is arranged at the bottom end in the ozone catalytic oxidation reactor, a microporous partition plate 18 is arranged above the aerator 14, a plurality of guide plates 16 which are installed in a cross mode are arranged on the side wall of the ozone catalytic oxidation reactor above the microporous partition plate 18, a continuous S-shaped space is formed among the guide plates 16, a high-efficiency catalyst 17 is arranged in the continuous S-shaped space, a spray header 15 is arranged above the high-efficiency catalyst 17 in the ozone catalytic oxidation reactor, and the supernatant part of the sedimentation tank 7 is connected with the spray header 15 through a pipeline with a pump;
two water outlets, namely a clean water outlet and a circulating outlet, are arranged on the side wall of the ozone catalytic oxidation reactor below the microporous partition plate 18, the circulating outlet is communicated with a water inlet port of a circulating water pump 12 through a pipeline, the circulating water pump 12 is communicated with the spray header 15 through a pipeline with a valve, the clean water outlet is connected with a multi-media filter 22 through a conduit for water supply, and the water outlet end of the multi-media filter 22 is communicated with a clean water tank 23.
The aerator 14 is connected to an ozone generator 20 via a pipe with a flow meter 21.
The upper part of the ozone catalytic oxidation reactor is provided with an ozone concentration detector 24.
A stirrer 4 is arranged in the mixing pool 3.
Liquid on the upper part of the sludge concentration tank 10 is discharged into the coke quenching wastewater tank 1 through a pipeline with a valve, and wastewater discharged from the plate and frame filter press 11 is discharged into the coke quenching wastewater tank 1 through a pipeline with a valve.
The top of the ozone catalytic oxidation reactor is communicated with the bottom of the coke quenching wastewater pool 1 through a valved ozone tail gas discharge pipe 19.
The upper part of the sedimentation tank 7 is provided with an inclined tube separation area 6, and the clear liquid part at the upper part of the inclined tube separation area 6 passes through a pipeline with a pump and a spray header 15.
The detailed functions of part of structural components in the coke quenching wastewater ozone catalytic oxidation device are as follows:
a high-density clarification tank: the high-density clarification tank is a high-efficiency water treatment structure integrating flocculation, sedimentation and sludge backflow. Mainly comprises a mixing tank, a flocculation tank, a sedimentation tank and a sludge circulating system. The coke quenching waste water enters a mixing tank through a lift pump, a coagulant is added into the mixing tank and then enters a flocculation tank through a water outlet pipe of the coagulation tank, return sludge in a sedimentation tank is connected with the water outlet pipe of the coagulation tank through a sludge circulation system and flows into the flocculation tank together with the mixture of the water and the water, and the return sludge is fully mixed with a flocculating agent in the flocculation tank through stirring. The effluent of the flocculation tank enters a sedimentation tank, most of alum flocs are precipitated below the sedimentation tank, the inclined tube above the sedimentation tank increases the precipitation area, and residual alum flocs in the water are removed at the inclined tube to generate qualified effluent. The alum blossom is precipitated and concentrated at the bottom of the sedimentation tank, the concentration zone is divided into two layers, the sludge on the upper layer is used for sludge circulation to accelerate the growth of the alum blossom and increase the density of the alum blossom, and the sludge on the lower layer is inactivated and is periodically discharged.
Ozone catalytic oxidation unit: water coming out of the high-density clarification tank enters the reactor from the upper end of the reactor through the water inlet pump and the circulating pump through the spray header, and flows downwards from top to bottom under the action of the circulating pump and gravity to fully contact with the catalyst and the ozone. Ozone enters from the bottom of the reactor, is prepared on site by adopting an ozone generator, and dry air is taken as an air source. The reactor is filled with metal oxide catalyst, the filling rate is about 50%, the lower end of the reactor is fixed by a microporous partition plate, in order to ensure full contact between the catalyst, ozone and water, the inner wall of the lower half part of the reactor is provided with guide plates which are arranged in a crossed mode and are inserted between the catalysts, ozone bubbles are ensured to rise in an S-shaped curve, and the path of gas and liquid reaction is prolonged, so that the retention time of gas is prolonged, and the longer the gas-liquid contact time is, the more the reaction is facilitated. The bottom of the reactor device is provided with a titanium alloy microporous aerator to generate micro bubbles, so that the gas is uniformly distributed in a smaller volume form, the gas-liquid contact area is increased, and the reaction is more sufficient. One part of the treated water flows out from the bottom end and enters a clean water tank through a multi-media filter, and the other part of the treated water is mixed with the effluent of the clarification tank through a circulating water pump and then enters an ozone catalytic oxidation reactor to participate in circulation. And a spray head is arranged above the rear device, and the reaction liquid circulated upwards is sprayed by water flow or water drops to break up the foam floating on the water surface. The device is provided with an ozone concentration detector for detecting the ozone concentration of the tail gas so as to judge the reaction degree. Ozone tail gas is introduced into a coke quenching circulating water tank from the bottom through a pipeline.
Sludge concentration tank: further reduce the moisture content of the sludge, reduce the volume of the sludge and improve the reuse rate of the wastewater. And the plate-and-frame filter press is used for further removing gap water and capillary water in the sludge, reducing the volume of the sludge and facilitating subsequent treatment. A multi-media filter: more than two media are adopted as filtering layers to further remove suspended or colloidal impurities, micro particles, bacteria, COD, volatile phenol, petroleum and the like in the ozone catalytic oxidation effluent.
When the device is used, the coke quenching wastewater in the coke quenching wastewater pool enters the mixing pool through the lift pump to be coagulated after being contacted with the added PAC coagulant, and the rapid stirrer continuously operates to help the coagulation and avoid alum floc precipitation. Then enters a flocculation tank through a water outlet pipe of the coagulation tank, is mixed with the return sludge of the sedimentation tank and flows into the flocculation tank together, and is fully mixed with the PAM flocculating agent in the flocculation tank through a stirrer. The effluent of the flocculation tank flows into the pre-settling zone with larger area through the weir, and the flow velocity of the water flow is slowed down, so that the breaking of flocculate and the formation of vortex can be avoided, and the effluent enters the sedimentation tank through the partition wall. Most of alum blossom is precipitated below the precipitation tank, the inclined tube above the precipitation tank increases the precipitation area, and residual alum blossom in the supernatant is removed at the position so as to generate qualified effluent. The alum blossom is precipitated and concentrated at the bottom of the sedimentation tank, the concentration zone is divided into two layers, the sludge at the upper layer enters a sludge circulating pump through a sludge circulating pipe for sludge circulation, the growth of the alum blossom is accelerated, and the density of the alum blossom is increased; sludge at the bottom of the sludge hopper is sludge without activity, the sludge is periodically discharged to a sludge concentration tank through a sludge discharge pipe by a sludge discharge pump, supernatant of the sludge concentration tank flows back to a coke quenching wastewater tank, and the concentrated sludge is compressed by a plate-and-frame filter press and then transported outwards.
The effluent of the sedimentation tank 7 is sprayed from the upper end of the ozone catalytic oxidation reactor device through a pump, and is sprayed in a water flow or water drop mode through a spray header at the upper end of the reactor, so that the foam floating on the water surface is scattered to avoid foam accumulation. The inlet of the ozone generator is connected with the atmosphere, the outlet of the ozone generator is connected with an aerator at the bottom end of the ozone catalytic oxidation reactor through a pipeline, ozone gas is broken up into tiny bubbles by the aerator to enter water, the tiny bubbles rise from bottom to top, the crossed guide plates prolong the path of the reaction between the bubbles and liquid, and the ozone and the reaction liquid fully react under the action of the high-efficiency catalyst. The reaction liquid flows from top to bottom in the reactor device under the action of the circulating water pump, so that the reaction is ensured to be uniformly carried out. One part of the water treated by the device is mixed with the effluent of the clarification tank through a circulating water pump to be continuously circulated, and the other part of the water is discharged, filtered by a plurality of media and then enters a clean water tank. The device is provided with a liquid level meter and an ozone concentration detector, wherein the height of the reaction liquid is controlled to be about 70%, and the ozone concentration in the device can be monitored by the ozone concentration detector to judge the reaction degree. The top end of the device is provided with a pipeline which is led into the bottom of the coke quenching wastewater pool, so that the ozone tail gas generated after reaction is led into the coke quenching wastewater, the residual ozone in the tail gas is quenched by using the raw coke quenching wastewater, and an additional tail gas destruction device is not needed.
The details of the present invention are well known to those skilled in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A coke quenching wastewater ozone catalytic oxidation device comprises a coke quenching wastewater pool (1), a mixing pool (3) and an ozone catalytic oxidation device (13), and is characterized in that the coke quenching wastewater pool (1) is communicated with the mixing pool (3) through a pipeline with a pump, the mixing pool (3) is communicated with an inlet at the bottom end of a flocculation pool (5) through a pipeline with a valve, and a sedimentation pool (7) is communicated with one side of the flocculation pool (5) in an overflow way;
the bottom end of the sedimentation tank (7) is provided with a sludge outlet (27), the sludge outlet (27) is communicated with a sludge concentration tank (10) through a pipeline with a sludge discharge pump (9), the bottom of the sludge concentration tank (10) is connected with a plate-and-frame filter press (11) through a pipeline with a pump, the lower part of the sedimentation tank (7) above the sludge outlet is provided with an alum blossom circulation port (28), the alum blossom circulation port (28) is communicated with the inlet end of a sludge circulation pump (8), and the outlet end of the sludge circulation pump (8) is communicated with the lower inlet of the flocculation tank (5) through a pipeline with a valve;
the supernatant part of the sedimentation tank (7) is connected with an ozone catalytic oxidation device (13) through a pipeline with a pump;
the ozone catalytic oxidation device (13) comprises a circulating water pump (12) and an ozone catalytic oxidation reactor, an aerator (14) is arranged at the bottom end in the ozone catalytic oxidation reactor, a microporous partition plate (18) is arranged above the aerator (14), a plurality of guide plates (16) which are installed in a cross mode are arranged on the side wall of the ozone catalytic oxidation reactor above the microporous partition plate (18), a continuous S-shaped space is formed among the guide plates (16), a high-efficiency catalyst (17) is arranged in the continuous S-shaped space, a spray header (15) is arranged above the high-efficiency catalyst (17) in the ozone catalytic oxidation reactor, and the supernatant part of the sedimentation tank (7) is connected with the spray header (15) through a pipeline with a pump;
two water outlets are arranged on the side wall of the ozone catalytic oxidation reactor below the microporous partition plate (18) and are a clean water outlet and a circulation outlet, the circulation outlet is communicated with a water inlet port of the circulation water pump (12) through a pipeline, the circulation water pump (12) is communicated with the spray header (15) through a pipeline with a valve, the clean water outlet is connected with the multi-medium filter (22) through a conduit for water supply, and the water outlet end of the multi-medium filter (22) is communicated with the clean water tank (23).
2. The quenching wastewater ozone catalytic oxidation device of claim 1, characterized in that: the aerator (14) is connected with an ozone generator (20) through a pipeline with a flowmeter (21).
3. The quenching wastewater ozone catalytic oxidation device of claim 1, characterized in that: an ozone concentration detector (24) is arranged at the upper part of the ozone catalytic oxidation reactor.
4. The quenching wastewater ozone catalytic oxidation device of claim 1, characterized in that: and a stirrer (4) is arranged in the mixing pool (3).
5. The quenching wastewater ozone catalytic oxidation device of claim 1, characterized in that: liquid on the upper part of the sludge concentration tank (10) is introduced into an aeration device (25) in the coke quenching wastewater tank (1) through a pipeline with a valve, and wastewater discharged by the plate-and-frame filter press (11) is discharged into the coke quenching wastewater tank (1) through a pipeline with a valve.
6. The quenching wastewater ozone catalytic oxidation device of claim 1, characterized in that: the top of the ozone catalytic oxidation reactor is communicated with the bottom of the coke quenching wastewater pool (1) through a valved ozone tail gas discharge pipe (19).
7. The quenching wastewater ozone catalytic oxidation device of claim 1, characterized in that: the upper part of the sedimentation tank (7) is provided with an inclined tube separation area (6), and the clear liquid part at the upper part of the inclined tube separation area (6) passes through a pipeline with a pump and a spray header (15).
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| CN201922394504.7U CN212050834U (en) | 2019-12-27 | 2019-12-27 | Coke quenching waste water ozone catalytic oxidation device |
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| CN201922394504.7U CN212050834U (en) | 2019-12-27 | 2019-12-27 | Coke quenching waste water ozone catalytic oxidation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113603259A (en) * | 2021-08-14 | 2021-11-05 | 江苏华晖环保科技有限公司 | Method for treating quenched and watered wastewater by adopting ozone catalytic oxidation technology |
| CN113735304A (en) * | 2021-04-24 | 2021-12-03 | 闫韶娟 | Coke quenching waste water ozone catalytic oxidation device |
-
2019
- 2019-12-27 CN CN201922394504.7U patent/CN212050834U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113735304A (en) * | 2021-04-24 | 2021-12-03 | 闫韶娟 | Coke quenching waste water ozone catalytic oxidation device |
| CN113603259A (en) * | 2021-08-14 | 2021-11-05 | 江苏华晖环保科技有限公司 | Method for treating quenched and watered wastewater by adopting ozone catalytic oxidation technology |
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