CN210505891U - A fragrant reaction unit of integral type for waste water treatment - Google Patents
A fragrant reaction unit of integral type for waste water treatment Download PDFInfo
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- CN210505891U CN210505891U CN201921166708.9U CN201921166708U CN210505891U CN 210505891 U CN210505891 U CN 210505891U CN 201921166708 U CN201921166708 U CN 201921166708U CN 210505891 U CN210505891 U CN 210505891U
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- fenton reaction
- reaction tank
- pipeline
- sliding rail
- sliding block
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Abstract
The utility model belongs to the technical field of effluent treatment plant, in particular to a fragrant reaction unit of integral type for waste water treatment, with pending waste water, hydrogen peroxide solution, the ferric ion solution pours into in the fragrant retort back, the circular telegram begins the electrolysis, the ferric ion is turned into inorganic state with hydrogen peroxide after the ferrous ion is electrolyzed into to take place the hydroxyl free radical that the fenton reaction generated with hydrogen peroxide in with waste water organic pollutant transformation, the realization is to the purification of waste water, and the ferric ion that turns into based on the fenton reaction turns into under the electrolysis environment again turns into ferrous can react with hydrogen peroxide solution once more, the reuse of iron component has been realized.
Description
Technical Field
The utility model belongs to the technical field of effluent treatment plant, in particular to a fenton reaction unit of integral type for waste water treatment.
Background
The Fenton reaction is mainly based on hydroxyl free radicals generated by the reaction of hydrogen peroxide and ferrous ions, a plurality of known organic compounds such as carboxylic acid, alcohol and ester are oxidized into inorganic states, the Fenton reaction has high capability of removing refractory organic pollutants, and the Fenton reaction is widely applied to the treatment of printing and dyeing wastewater, oily wastewater, phenolic wastewater, coking wastewater and other wastewater. After the fenton reaction, the divalent iron ions are converted into trivalent iron ions, on one hand, the generated trivalent iron ions are left in the wastewater but cannot react with hydrogen peroxide to generate hydroxyl radicals in the process of the fenton reaction, and on the other hand, after the fenton reaction is finished, the trivalent iron ions in the water need to be removed.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an integrated Fenton reaction device for wastewater treatment, which comprises a Fenton reaction tank, a sliding mechanism, an electrolysis device and a stirring mechanism,
the Fenton reaction tank is connected with a waste water pipeline, the waste water to be treated is discharged into the Fenton reaction tank through the waste water pipeline,
a drainage pipeline extends out of the Fenton reaction tank, the wastewater treated by the Fenton reaction tank is discharged out of the Fenton reaction tank through the drainage pipeline,
the sliding mechanism comprises a bracket, the bracket comprises a pair of supporting seats and a horizontal sliding rail which are oppositely arranged, two ends of the sliding rail are respectively and fixedly connected with the upper positions of the two supporting seats, the sliding rail stretches across the upper part of the Fenton reaction tank with an upward opening, a first sliding block and a second sliding block are sequentially and movably clamped on the sliding rail along the length direction of the sliding rail, the first sliding block and the second sliding block can slide in a reciprocating manner along the length direction of the sliding rail,
a stepping motor is fixedly arranged on the upper surface of one end of the slide rail, a ball screw which is positioned right above the slide rail and is parallel to the slide rail is connected with the shaft end of the stepping motor, one end of the ball screw, which is far away from the stepping motor, horizontally extends to a position close to a bracket fixedly connected with the other end of the slide rail, a first nut and a second nut are sequentially sleeved on the ball screw along the length direction of the ball screw, the first nut and the second nut can both move back and forth along the length direction of the ball screw, the first nut is fixedly connected with the top of a first slide block and can drive the first slide block to slide back and forth on the slide rail, the second nut is fixedly connected with the top of a second slide block and can drive the second slide block to slide back and forth on the slide rail, the stepping motor drives the ball screw to axially rotate so as to drive the first nut and the second nut to reciprocate on the ball screw, and finally drives,
a first telescopic cylinder is fixedly connected to the first sliding block, a vertical first telescopic rod vertically extends downwards from the first telescopic cylinder, a first fixing plate horizontally arranged is fixedly connected to the bottom end of the first telescopic rod (the bottom end of the first telescopic rod is fixedly connected to the upper plate surface of the first fixing plate), an electrolysis device is fixedly mounted on the lower plate surface of the first fixing plate, and an anode and a cathode vertically extend downwards from the bottom of the electrolysis device;
a second telescopic cylinder is fixedly connected on the second slide block, a vertical second telescopic rod vertically extends downwards from the second telescopic cylinder, a second fixing plate horizontally arranged is fixedly connected at the bottom end of the second telescopic rod (the bottom end of the second telescopic rod is fixedly connected on the upper plate surface of the second fixing plate), a stirring mechanism is fixedly arranged on the lower plate surface of the second fixing plate,
the stirring mechanism comprises a stirring motor fixedly arranged on the lower plate surface of the second fixing plate, a stirring rod vertically and downwardly extending from the stirring motor, and a stirring impeller arranged at the bottom end of the stirring rod,
a horizontal filter screen is arranged right below the stirring impeller, a plurality of connecting rods which vertically extend downwards from the lower plate surface of the second fixing plate are distributed on the lower plate surface of the second fixing plate except for the stirring motor, and the end parts, far away from the second fixing plate, of the connecting rods are fixedly connected to the periphery of the filter screen in an annular mode.
Preferably, the method comprises the following steps: the reaction device also comprises a hydrogen peroxide storage tank, an iron hydroxide dissolving tank and an alkali liquor storage tank,
the hydrogen peroxide storage tank is communicated with the Fenton reaction tank through a first pipeline, the hydrogen peroxide in the hydrogen peroxide storage tank is discharged into the Fenton reaction tank through the first pipeline,
the ferric iron hydroxide dissolving tank is communicated with the Fenton reaction tank through a second pipeline, ferric iron ion solution in the ferric iron hydroxide dissolving tank is discharged into the Fenton reaction tank through the second pipeline,
the alkali liquor storage tank is communicated with the Fenton reaction tank through a third pipeline, and the alkali liquor in the alkali liquor storage tank is discharged into the Fenton reaction tank through the third pipeline;
preferably, the method comprises the following steps: the first sliding block and the second sliding block are connected together through a horizontal supporting rod with the length direction consistent with the sliding rail, and the horizontal supporting rod enables the first sliding block and the second sliding block to always keep a corresponding distance.
Drawings
FIG. 1 is a schematic view (in plan view) showing the approximate positional relationship between the tanks and the slide rails in the integrated Fenton reaction apparatus for wastewater treatment of the present invention,
FIG. 2 is a schematic structural view (front view and sectional view) of the present invention, wherein the electrolysis device and the stirring mechanism are not moved down,
FIG. 3 is a schematic view of the electrolytic cell of the present invention, which is operated in electrolysis on the basis of FIG. 2,
FIG. 4 is a schematic structural diagram of the present invention, which is based on FIG. 2 and is used for precipitating iron ions by adding alkali solution,
figure 5 is a cross-sectional view a-a (left hand side) of figure 2,
figure 6 is a cross-sectional view (looking down) B-B of figure 2,
figure 7 is a cross-sectional view (left side view) of C-C of figure 2,
figure 8 is a top view of figure 7,
wherein, 1-fenton reaction tank, 11-waste water pipeline, 111-water inlet valve, 112-water inlet pump, 12-water outlet pipeline, 121-water outlet valve, 122-water outlet pump, 2-support base, 21-notch, 3-slide rail, 31-stepping motor, 32-ball screw, 4-first slide block, 41-first telescopic cylinder, 411-first telescopic rod, 412-first fixed plate, 42-first nut, 5-second slide block, 51-second telescopic cylinder, 511-second telescopic rod, 512-second fixed plate, 513-connecting rod, 52-second nut, 6-electrolysis device, 61-anode, 62-cathode, 7-stirring mechanism, 71-stirring motor, 72-stirring rod, 73-stirring impeller, 8-filter screen, 9-hydrogen peroxide solution storage tank, 10-iron hydroxide dissolving tank, 13-alkali solution storage tank, 14-first pipeline, 141-first valve, 142-first water pump, 15-second pipeline, 151-second valve, 152-second water pump, 16-third pipeline, 161-third valve, 162-third water pump, 17-horizontal support rod, 18-ground.
Detailed Description
As shown in attached figure 1, the integrated Fenton reaction device for wastewater treatment in the utility model comprises a Fenton reaction tank 1, a sliding mechanism, an electrolysis device 6, a stirring mechanism 7, a hydrogen peroxide storage tank 9, an iron hydroxide dissolving tank 10 and an alkali liquor storage tank 13,
the Fenton reaction tank 1 is a cylindrical tank body which is vertically arranged and the top of which is provided with an opening, a waste water pipeline 11 is connected on the Fenton reaction tank 1, waste water to be treated is discharged into the inner cavity of the Fenton reaction tank 1 through the waste water pipeline 11, a liquid inlet communicated with the waste water pipeline 11 on the wall of the inner cavity of the Fenton reaction tank 1 is close to the opening at the top of the Fenton reaction tank 1, a water inlet valve 111 for controlling the circulation of the waste water in the pipeline and a water inlet pump 112 for pumping the waste water into the inner cavity of the Fenton reaction tank 1 are arranged on the waste water pipeline 11,
a drainage pipeline 12 extends from the Fenton reaction tank 1, the wastewater treated by the Fenton reaction tank 1 is discharged out of the Fenton reaction tank 1 through the drainage pipeline 12, a liquid outlet on the wall of the inner cavity of the Fenton reaction tank 1, which is communicated with the drainage pipeline 12, is close to the bottom of the inner cavity of the Fenton reaction tank 1, a water outlet valve 121 for controlling the circulation of the treated wastewater in the pipeline and a water outlet pump 122 for pumping the treated wastewater are arranged on the drainage pipeline 12,
the hydrogen peroxide storage tank 9 is communicated with the Fenton reaction tank 1 through a first pipeline 14, the hydrogen peroxide in the hydrogen peroxide storage tank 9 is discharged into the Fenton reaction tank 1 through the first pipeline 14, a liquid inlet which is communicated with the first pipeline 14 on the wall of the inner cavity of the Fenton reaction tank 1 is close to an opening at the top of the Fenton reaction tank 1, a first valve 141 for controlling the circulation of the hydrogen peroxide in the pipeline and a first water pump 142 for pumping the hydrogen peroxide into the inner cavity of the Fenton reaction tank 1 are arranged on the first pipeline 14,
the ferric hydroxide dissolving tank 10 is communicated with the Fenton reaction tank 1 through a second pipeline 15, the ferric ion solution in the ferric hydroxide dissolving tank 10 is discharged into the Fenton reaction tank 1 through the second pipeline 15, a liquid inlet on the inner cavity wall of the Fenton reaction tank 1, which is communicated with the second pipeline 15, is close to the top opening of the Fenton reaction tank 1, a second valve 151 for controlling the ferric ion solution to flow in the pipeline and a second water pump 152 for pumping the ferric ion solution into the inner cavity of the Fenton reaction tank 1 are arranged on the second pipeline 15,
the alkali liquor storage tank 13 is communicated with the Fenton reaction tank 1 through a third pipeline 16, the alkali liquor in the alkali liquor storage tank 13 is discharged into the Fenton reaction tank 1 through the third pipeline 16, a liquid inlet, communicated with the third pipeline 16, on the wall of the inner cavity of the Fenton reaction tank 1 is close to an opening at the top of the Fenton reaction tank 1, and the third pipeline 16 is provided with a third valve 161 for controlling the circulation of the alkali liquor in the pipeline and a third water pump 162 for pumping the alkali liquor into the inner cavity of the Fenton reaction tank 1;
the sliding mechanism comprises a bracket, the bracket comprises a pair of supporting seats 2 and a horizontal sliding rail 3 which are oppositely arranged, two ends of the sliding rail 3 are respectively and fixedly connected at the upper positions of the two supporting seats 2, the sliding rail 3 stretches across the position right above the Fenton reaction tank 1 with an upward opening, a first sliding block 4 and a second sliding block 5 are sequentially and movably clamped on the sliding rail 3 along the length direction of the sliding rail 3, the first sliding block 4 and the second sliding block 5 can slide on the sliding rail 3 in a reciprocating way along the length direction of the sliding rail 3, the first sliding block 4 and the second sliding block 5 are fixedly connected together through a horizontal supporting rod 17 with the length direction being consistent with that of the sliding rail 3, the horizontal supporting rod 17 enables the first sliding block 4 and the second sliding block 5 which can slide on the sliding rail 3 in a reciprocating way to always keep,
the method specifically comprises the following steps: a stepping motor 31 is fixedly arranged on the upper surface of one end of the slide rail 3, the shaft end of the stepping motor 31 is connected with a ball screw 32 which is positioned right above the slide rail 3 and is parallel to the slide rail 3, one end of the ball screw 32 far away from the stepping motor 31 horizontally extends to a supporting seat 2 fixedly connected with the other end of the slide rail 3 (one end of the ball screw 32 far away from the stepping motor 31 can be axially and rotatably embedded into a notch 21 arranged on the supporting seat 2 and matched with the supporting seat so as to enable the end to be supported upwards by the supporting seat 2 and not to influence the axial rotation of the ball screw 32), a first screw nut 42 and a second screw nut 52 are sequentially sleeved on the ball screw 32 along the length direction of the ball screw 32, the first screw nut 42 and the second screw nut 52 can both move back and forth along the length direction of the ball screw 32, the first screw nut 42 is fixedly connected to the top of the first slide block 4, the second screw nut, the stepping motor 31 drives the ball screw 32 to axially rotate so as to drive the first screw nut 42 and the second screw nut 52 to reciprocate on the ball screw 32, so as to respectively drive the first sliding block 4 and the second sliding block 5 to slide on the sliding rail 3 in a reciprocating manner;
a first telescopic cylinder 41 is fixedly connected on the front end surface of the first slide block 4, a vertical first telescopic rod 411 extends vertically and downwards from the first telescopic cylinder 41, a horizontally arranged first fixing plate 412 is fixedly connected at the bottom end of the first telescopic rod 411, an electrolysis device 6 is fixedly arranged on the lower plate surface of the first fixing plate 412, an anode 61 and a cathode 62 extend vertically and downwards from the electrolysis device 6,
when the first slide block 4 slides to a position right above the fenton reaction tank 1, the first telescopic cylinder 41 drives the first fixing plate 412 and the electrolysis device 6 to vertically move downwards through the first telescopic rod 411, so that the anode 61 and the cathode 62 vertically extend downwards into the inner cavity of the fenton reaction tank 1 and are close to the bottom of the inner cavity (as shown in fig. 3);
the front end surface of the second slide block 5 is fixedly connected with a second telescopic cylinder 51, the second telescopic cylinder 51 vertically extends downwards to form a vertical second telescopic rod 511, the bottom end of the second telescopic rod 511 is fixedly connected with a second fixing plate 512 which is horizontally arranged, the lower plate surface of the second fixing plate 512 is fixedly provided with a stirring mechanism 7, the stirring mechanism 7 comprises a stirring motor 71 which is fixedly arranged on the lower plate surface of the second fixing plate 512, a stirring rod 72 which vertically extends downwards on the stirring motor 71, and a stirring impeller 73 which is arranged at the bottom end of the stirring rod 72,
a horizontal filter screen 8 is fixedly arranged right below the stirring impeller 73, a plurality of connecting rods 513 which vertically extend downwards from the lower plate surface of the second fixing plate 512 are distributed on the lower plate surface of the second fixing plate 512 except the stirring motor 71, the positions, close to the bottom ends, on the connecting rods 513 are annularly and fixedly connected (welded) on the peripheral edge of the filter screen 8, the number of the connecting rods 513 is three, and the connecting rods are uniformly distributed on the peripheral edge of the filter screen 8,
when second slider 5 slided to directly over fenton retort 1, the flexible cylinder 51 of second drives second fixed plate 512 through second telescopic link 511, rabbling mechanism 7, the vertical downstream simultaneously of filter screen 8, filter screen 8 and three connecting rods 513 can vertically stretch into (get into) the position near the chamber bottom of fenton retort 1 inner chamber and make filter screen 8 reach down just, simultaneously, puddler 72 and impeller 73 also stretch into (get into) the inner chamber of fenton retort 1 (like figure 4).
Based on the above device, firstly ferric iron ion solution is obtained by dissolving ferric hydroxide with acid in an iron hydroxide dissolving tank 10, after a first slide block 4 slides to a position right above a Fenton reaction tank 1 and is fixed by a lead screw according to the structure shown in figure 3, an anode 61 and a cathode 62 are extended into the Fenton reaction tank 1 to prepare for electrolysis, corresponding amounts of wastewater to be treated, hydrogen peroxide and ferric iron ion solution are injected into the Fenton reaction tank 1, the electrolysis is started by electrifying, ferric iron is electrolyzed into ferrous iron and then undergoes a Fenton reaction with the hydrogen peroxide to generate hydroxyl free radicals, organic pollutants in the wastewater are converted into an inorganic state, the wastewater is purified, the Fenton reaction converts the ferrous iron into ferric iron, but at the moment, the ferric iron is converted into ferrous iron again due to existence of an electrolytic environment and reacts with the hydrogen peroxide to generate the hydroxyl free radicals, realizes the recycling of iron components (until the hydrogen peroxide in the Fenton reaction tank 1 is consumed to a low enough concentration), and simultaneously enables the electrolysis and the Fenton reaction to be operated integrally,
after the electrolysis reaction is finished, iron ions are left in the treated liquid, and the iron ions belong to heavy metals, so that the environment is polluted, and the human health is not facilitated, and therefore the iron ions in the liquid should be removed as much as possible before water is discharged. In contrast, the first fixing plate 412 and the electrolysis device 6 are driven to vertically ascend through the first telescopic rod 411 by the first telescopic cylinder 41, so that the anode 61 and the cathode 62 are completely separated from the inner cavity of the fenton reaction tank 1, the first slider 4 is driven to move right (only in the same direction as that in fig. 2, 3 and 4) through the screw rod, the second slider 5 is slid to the position right above the fenton reaction tank 1 and fixed by the screw rod, the stirring rod 72, the stirring impeller 73 and the filter screen 8 are extended into the liquid in the inner cavity of the fenton reaction tank 1 according to the structure shown in fig. 4, a corresponding amount of sodium hydroxide solution in the alkaline solution storage tank 13 is injected into the fenton reaction tank 1 through the third pipeline 16, the stirring mechanism 7 is started to fully react and combine the injected hydroxyl ions with the iron ions in the fenton reaction tank 1, the stirring is stopped, and after the stirring is stopped, the second fixing plate 512, the second telescopic cylinder 51 is driven through the second telescopic rod 511 after the stirring is performed for a, The stirring mechanism 7 and the filter screen 8 are vertically lifted up, the filter screen 8 can bring ferric hydroxide precipitate generated in the liquid out of the Fenton reaction tank 1 in the upward movement process, the integrated operation of heavy metal ion precipitation and separation is realized,
the speed of the second telescopic cylinder 51 driving the second fixing plate 512, the stirring mechanism 7 and the filter screen 8 to move vertically downwards or upwards through the second telescopic rod 511 should be relatively slow, because the mesh on the filter screen 8 is relatively small (the too large mesh will affect the separation effect of ferric hydroxide precipitation and liquid in the fenton reaction tank 1 in the ascending process of the filter screen 8), the filter screen 8 which is close to the cross section area of the inner cavity of the fenton reaction tank 1 and is horizontally arranged is pressed into the liquid at a high speed or lifted out of the liquid at a high speed, which easily causes the liquid in the fenton reaction tank 1 to be pressed out or taken out, so the operation needs to be performed slowly and smoothly; or the liquid level of the liquid in the Fenton reaction tank 1 can be controlled not to be too high, and the liquid in the tank is not worried to be pressed out or carried out,
Claims (4)
1. The utility model provides an integral type fenton reaction unit for waste water treatment which characterized in that: the reaction device comprises a Fenton reaction tank (1), a sliding mechanism, an electrolysis device (6) and a stirring mechanism (7),
the Fenton reaction tank (1) is connected with a waste water pipeline (11), waste water to be treated is discharged into the inner cavity of the Fenton reaction tank (1) through the waste water pipeline (11),
a drainage pipeline (12) extends out of the Fenton reaction tank (1), the wastewater treated by the Fenton reaction tank (1) is discharged out of the Fenton reaction tank (1) through the drainage pipeline (12),
the sliding mechanism comprises a support, the support comprises a pair of supporting seats (2) and a horizontal sliding rail (3) which are oppositely arranged, two ends of the sliding rail (3) are fixedly connected to positions on the two supporting seats (2) respectively, the sliding rail (3) stretches across the position right above the Fenton reaction tank (1) with an upward opening, a first sliding block (4) and a second sliding block (5) are movably clamped on the sliding rail (3) in sequence along the length direction of the sliding rail (3), the first sliding block (4) and the second sliding block (5) can slide on the sliding rail (3) in a reciprocating manner along the length direction of the sliding rail (3),
the first sliding block (4) is fixedly connected with a first telescopic cylinder (41), the first telescopic cylinder (41) vertically extends downwards to form a vertical first telescopic rod (411), the bottom end of the first telescopic rod (411) is fixedly connected with a first fixing plate (412) which is horizontally arranged, the lower plate surface of the first fixing plate (412) is fixedly provided with the electrolysis device (6),
an anode (61) and a cathode (62) vertically and downwards extend out of the electrolysis device (6);
a second telescopic cylinder (51) is fixedly connected to the second sliding block (5), a vertical second telescopic rod (511) vertically extends downwards from the second telescopic cylinder (51), a second fixing plate (512) horizontally arranged is fixedly connected to the bottom end of the second telescopic rod (511), the stirring mechanism (7) is fixedly mounted on the lower plate surface of the second fixing plate (512),
the stirring mechanism (7) comprises a stirring motor (71) fixedly arranged on the lower plate surface of the second fixing plate (512), a stirring rod (72) vertically and downwardly extending from the stirring motor (71), and a stirring impeller (73) arranged at the bottom end of the stirring rod (72),
the stirring impeller is characterized in that a horizontal filter screen (8) is arranged under the stirring impeller (73), a plurality of connecting rods (513) which vertically extend downwards from the lower plate surface of the second fixing plate (512) are distributed on the lower plate surface of the second fixing plate (512) except for the stirring motor (71), and the bottom ends of the connecting rods (513) are fixedly connected to the periphery of the filter screen (8) in the circumferential direction.
2. An integrated fenton reaction apparatus for wastewater treatment according to claim 1, wherein: the upper surface of one end of the sliding rail (3) is fixedly provided with a stepping motor (31), the shaft end of the stepping motor (31) is connected with a ball screw (32) which is positioned right above the sliding rail (3) and is parallel to the sliding rail (3), one end of the ball screw (32) far away from the stepping motor (31) horizontally extends to a position close to the supporting seat (2) fixedly connected with the other end of the sliding rail (3), the ball screw (32) is sequentially sleeved with a first screw nut (42) and a second screw nut (52) along the length direction of the ball screw (32), the first screw nut (42) and the second screw nut (52) can move back and forth along the length direction of the ball screw (32), the first screw nut (42) is fixedly connected to the top of the first sliding block (4), and the second screw nut (52) is fixedly connected to the top of the second sliding block (5), the stepping motor (31) drives the ball screw (32) to axially rotate so as to drive the first screw nut (42) and the second screw nut (52) to reciprocate on the ball screw (32), so that the first sliding block (4) and the second sliding block (5) are respectively driven to slide on the sliding rail (3) in a reciprocating manner.
3. An integrated fenton reaction apparatus for wastewater treatment according to claim 1, wherein: the reaction device also comprises a hydrogen peroxide storage tank (9), an iron hydroxide dissolving tank (10) and an alkali liquor storage tank (13),
the hydrogen peroxide solution storage tank (9) is communicated with the Fenton reaction tank (1) through a first pipeline (14), the hydrogen peroxide solution in the hydrogen peroxide solution storage tank (9) is discharged into the Fenton reaction tank (1) through the first pipeline (14),
the ferric hydroxide dissolving tank (10) is communicated with the Fenton reaction tank (1) through a second pipeline (15), ferric ion solution in the ferric hydroxide dissolving tank (10) is discharged into the Fenton reaction tank (1) through the second pipeline (15),
the alkali liquor storage tank (13) is communicated with the Fenton reaction tank (1) through a third pipeline (16), and the alkali liquor in the alkali liquor storage tank (13) is discharged into the Fenton reaction tank (1) through the third pipeline (16).
4. An integrated fenton reaction apparatus for wastewater treatment according to claim 1, wherein: the first sliding block (4) and the second sliding block (5) are fixedly connected together through a horizontal supporting rod (17) with the length direction consistent with that of the sliding rail (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921166708.9U CN210505891U (en) | 2019-07-24 | 2019-07-24 | A fragrant reaction unit of integral type for waste water treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921166708.9U CN210505891U (en) | 2019-07-24 | 2019-07-24 | A fragrant reaction unit of integral type for waste water treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210505891U true CN210505891U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921166708.9U Expired - Fee Related CN210505891U (en) | 2019-07-24 | 2019-07-24 | A fragrant reaction unit of integral type for waste water treatment |
Country Status (1)
| Country | Link |
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| CN (1) | CN210505891U (en) |
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2019
- 2019-07-24 CN CN201921166708.9U patent/CN210505891U/en not_active Expired - Fee Related
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Granted publication date: 20200512 Termination date: 20210724 |