CN214422430U - Integrated iron-carbon-Fenton coupling catalytic oxidation reactor - Google Patents
Integrated iron-carbon-Fenton coupling catalytic oxidation reactor Download PDFInfo
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- CN214422430U CN214422430U CN202023131782.2U CN202023131782U CN214422430U CN 214422430 U CN214422430 U CN 214422430U CN 202023131782 U CN202023131782 U CN 202023131782U CN 214422430 U CN214422430 U CN 214422430U
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Abstract
The utility model belongs to the technical field of waste water treatment, in particular to integration iron carbon-fenton coupling catalytic oxidation reactor. In the utility model, the sleeve type inner tower and outer tower structure enables the iron-carbon micro-electrolysis reactor and the Fenton catalytic oxidation reactor to be integrated, and simultaneously enables the iron-carbon micro-electrolysis reaction and the Fenton catalytic oxidation reaction to be carried out independently; the tangent circulation circuit water inlet of tower wall level can pass through the horizontal direction water injection with outer tower, gives the horizontal tangent upwelling of waste water, promotes the mixed system that contains waste water between interior tower and the outer tower intermediate layer and obtains the rapid mixing reaction in the fenton reaction stage, has solved the difficult problem that returns font space solution stirring mixes, avoids the problem of the catalyst consumption that the aeration stirring leads to simultaneously, is favorable to improving fenton reaction efficiency. The embodiment test result shows, uses the utility model provides an integration iron carbon-fenton coupling catalytic oxidation reactor carries out waste water treatment, can effectively improve waste water advanced treatment efficiency.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment, in particular to integration iron carbon-fenton coupling catalytic oxidation reactor.
Background
Among various Advanced Oxidation processes (AOPs for short), the iron-carbon micro-electrolysis technology and fenton technology both exhibit high-efficiency Oxidation capability on refractory organics, and thus are widely applied to wastewater treatment discharged by enterprises such as coking, pharmacy and chemical industry. When the wastewater has complex components and multiple pollutant types, the independent iron-carbon micro-electrolysis or independent Fenton oxidation method cannot meet the index limitation requirement of wastewater treatment, so that the technical personnel in the field can combine the iron-carbon micro-electrolysis and the Fenton oxidation to realize the pollutant treatment of the wastewater with complex components.
In the current coupling system comprising the iron-carbon micro-electrolysis system and the Fenton oxidation system, the iron-carbon micro-electrolysis system and the Fenton oxidation system are often separated, so that the coupling system occupies a large area, is complex in pipeline and is not beneficial to improving the wastewater treatment efficiency; or in the iron carbon-fenton reactor of integration, the little electrolysis reaction of iron carbon and the fenton oxidation reaction go on in same space, one of the iron carbon filler principal ingredients is zero-valent iron among the iron carbon system, the zero-valent iron can be oxidized to the fenton reagent, make the iron carbon lose activity, and can produce the virtual body that many ferric irons and water combine, can adsorb on the iron carbon surface, make the iron carbon lose catalytic activity or activity reduction, lead to the little electrolysis reaction of iron carbon and the fenton oxidation reaction to interfere with each other, hinder the forward of reaction to go on, lead to catalytic reaction efficiency to reduce.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an integration iron carbon-fenton coupling catalytic oxidation reactor, have simple structure, area is little and reaction efficiency is high characteristics.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
the utility model provides an integrated iron-carbon-Fenton coupling catalytic oxidation reactor, which comprises an inner tower 1 and an outer tower 2 which are in a sleeve structure; the central axes of the inner tower 1 and the outer tower 2 are superposed; the water outlet of the inner tower 1 is connected with the water inlet of the outer tower 2 through a cyclone water distributor 3;
the inner tower 1 is sequentially provided with a water inlet 6, a packing layer 4 and an aerator 5 from top to bottom, and the packing layer 4 is an iron-carbon packing layer; the rotational flow water distributor 3 is positioned at the bottom of the inner tower 1;
the tower wall of the outer tower 2 is provided with a circulation loop water inlet 7, a circulation loop water outlet 8 and a water outlet 10 from bottom to top, and the circulation loop water inlet 7 and the circulation loop water outlet 8 are both tangentially communicated with the tower wall of the outer tower 2;
an oxidant dosing device 11 is arranged outside the outer tower 2; and a water inlet of the oxidant dosing device 11 is connected with a water outlet 8 of the circulation loop, and a water outlet of the oxidant dosing device 11 is connected with a water inlet pipe 7 of the circulation loop.
Preferably, the ratio of the inner diameters of the inner tower 1 and the outer tower 2 is 1: (2-5); the bottom surfaces of the inner tower 1 and the outer tower 2 are on the same horizontal plane, and the inner tower 1 is 2200-500 mm higher than the outer tower.
Preferably, the number of the layers of the filler layer 4 is 1-3; the total volume of the filler layer 4 accounts for 20-50% of the inner volume of the inner tower 1;
and when the layers of the packing layers 4 are multiple, the packing layers are arranged at intervals.
Preferably, the rotational flow water distributor 3 is provided with holes uniformly distributed in a zigzag manner, and water distribution guide plates are arranged at the positions of the holes; the tangential direction of the water distribution guide plate is coincided with the perpendicular bisector of the opening.
Preferably, a circulating pump 12 is further arranged on a connecting pipeline between the oxidant dosing device 11 and the circulating loop water inlet 7, a water inlet of the circulating pump 12 is connected with a water outlet of the oxidant dosing device 11, and a water outlet of the circulating pump 12 is connected with the circulating loop water inlet 7.
Preferably, a plurality of circulation loop water inlets 7 are arranged, and all the circulation loop water inlets 7 are positioned on the same horizontal plane;
the number of the circulating loop water outlets 8 is multiple, and all the circulating loop water outlets 8 are located on the same horizontal plane.
Preferably, the water inlet 6 is arranged at the top of the inner tower 1.
Preferably, the wall of the outer tower 2 is provided with an overflow weir 9, and the overflow weir 9 is positioned above the water outlet 8 of the circulation loop; the overflow weir 9 is externally connected with a water outlet 10.
The utility model provides an integrated iron-carbon-Fenton coupling catalytic oxidation reactor, which comprises an inner tower 1 and an outer tower 2 which are in a sleeve structure; the central axes of the inner tower 1 and the outer tower 2 are superposed; the water outlet of the inner tower 1 is connected with the water inlet of the outer tower 2 through a cyclone water distributor 3; the inner tower 1 is sequentially provided with a water inlet 6, a packing layer 4 and an aerator 5 from top to bottom, and the packing layer 4 is an iron-carbon packing layer; the rotational flow water distributor 3 is positioned at the bottom of the inner tower 1; the tower wall of the outer tower 2 is provided with a circulation loop water inlet 7, a circulation loop water outlet 8 and a water outlet 10 from bottom to top, and the circulation loop water inlet 7 and the circulation loop water outlet 8 are both tangentially communicated with the tower wall of the outer tower 2; an oxidant dosing device 11 is arranged outside the outer tower 2; and a water inlet of the oxidant dosing device 11 is connected with a water outlet 8 of the circulation loop, and a water outlet of the oxidant dosing device 11 is connected with a water inlet pipe 7 of the circulation loop. In the utility model, the sleeve type inner tower and outer tower structure integrates the iron-carbon micro-electrolysis reactor and the Fenton catalytic oxidation reactor, thereby reducing the occupied area of the device; the iron-carbon micro-electrolysis reaction and the Fenton catalytic oxidation reaction can be independently carried out in the inner tower 1 and the outer tower 2 respectively, so that the mutual interference between the chemical reactions is reduced, the forward proceeding of the iron-carbon micro-electrolysis reaction and the Fenton catalytic oxidation reaction is facilitated, and the occurrence of side reactions is reduced; the packing layer can generate ferrous ions in the wastewater treatment process, which is beneficial to the Fenton catalytic oxidation reaction between the interlayer of the inner tower and the interlayer of the outer tower; the water inlet of the circulation loop which is horizontally tangent to the tower wall of the outer tower can inject water in the horizontal direction, so that the wastewater is horizontally tangent to flow upwards, the rapid mixing reaction of a mixed system containing the wastewater between the inner tower and the outer tower interlayer is promoted at the Fenton reaction stage, and the problem of stirring and mixing of the solution in the space shaped like a Chinese character 'hui' is solved; the water outlet of the circulation loop and the water inlet of the circulation loop can form backflow water injection acceleration in an interlayer of the inner tower and the outer tower, so that the problem of catalyst consumption caused by aeration stirring is avoided, the water quality of water produced by a water outlet is ensured in repeated circulation treatment, and the Fenton reaction efficiency is improved.
The embodiment test result shows, uses the utility model provides an integration iron carbon-fenton coupling catalytic oxidation reactor carries out waste water treatment, can effectively improve waste water advanced treatment efficiency.
Drawings
FIG. 1 is a schematic structural diagram of the integrated iron-carbon-Fenton coupling catalytic oxidation reactor of the present invention, wherein 1-inner tower, 2-outer tower, 3-cyclone water distributor, 4-packing layer, 5-aerator, 6-water inlet, 7-circulation loop water inlet pipe, 8-circulation loop water outlet pipe, 9-overflow weir, 10-water outlet, 11-oxidant dosing device, and 12-circulation pump;
FIG. 2 is a schematic structural view of a vortex water distributor of the present invention, in which 3-vortex water distributor and 5-aerator are shown;
fig. 3 is a schematic view of the communication of the external tower circulation loop of the present invention, in which, the water inlet pipe of the 7-circulation loop is connected to the water outlet pipe of the 8-circulation loop.
Detailed Description
The utility model provides an integrated iron-carbon-Fenton coupling catalytic oxidation reactor, which comprises an inner tower 1 and an outer tower 2 which are in a sleeve structure; the central axes of the inner tower 1 and the outer tower 2 are superposed; the water outlet of the inner tower 1 is connected with the water inlet of the outer tower 2 through a cyclone water distributor 3;
the inner tower 1 is sequentially provided with a water inlet 6, a packing layer 4 and an aerator 5 from top to bottom, and the packing layer 4 is an iron-carbon packing layer; the rotational flow water distributor 3 is positioned at the bottom of the inner tower 1;
the tower wall of the outer tower 2 is provided with a circulation loop water inlet 7, a circulation loop water outlet 8 and a water outlet 10 from bottom to top, and the circulation loop water inlet 7 and the circulation loop water outlet 8 are both tangentially communicated with the tower wall of the outer tower 2;
an oxidant dosing device 11 is arranged outside the outer tower 2; and a water inlet of the oxidant dosing device 11 is connected with a water outlet 8 of the circulation loop, and a water outlet of the oxidant dosing device 11 is connected with a water inlet pipe 7 of the circulation loop.
The integrated iron-carbon-fenton coupling catalytic oxidation reactor provided by the present invention is described with reference to fig. 1.
The utility model provides an integration iron carbon-fenton coupling catalytic oxidation reactor includes interior tower 1. In the utility model, the inner tower 1 is a device with a cavity; the utility model discloses carry out the little electrolytic reaction of iron carbon to waste water in the cavity.
The utility model discloses in, the top of the tower of interior tower 1 is provided with water inlet 6 for let in waste water and acidizing fluid.
In the utility model, a packing layer 4 is arranged in the cavity of the inner tower 1. In the utility model, the packing layer 4 is an iron-carbon packing layer; the utility model discloses it is right iron carbon filler in the iron carbon filler layer does not have special restriction, adopt the iron carbon material that technical personnel in the field are familiar with can. In the present invention, when the number of layers of the packing layer 4 is plural, the packing layers are preferably arranged at intervals. The utility model discloses in, the number of piles of packing layer 4 is preferred 1 ~ 3. The utility model discloses in, the filler total volume of packing layer 4 preferably accounts for 20 ~ 50% of interior tower 1 tower internal volume, more preferably 25 ~ 45%.
In the present invention, an aerator 5 is provided in the lower part of the inner tower 1. The structure of the aerator 5 of the present invention is not particularly limited, and an aerator known to those skilled in the art may be used. The utility model discloses in, the aerator is favorable to stirring the water, makes waste water and air contact oxygenate, and oxygen is to the transfer in the water in the air with higher speed, and simultaneously, the aerator is favorable to strengthening interior tower cavity waste water organic matter and microorganism and dissolved oxygen contact to guarantee that the microorganism is in the water under the condition that has sufficient dissolved oxygen, to the oxidative decomposition of organic matter in the waste water.
In the utility model, the bottom of the inner tower 1 is provided with a cyclone water distributor 3; the cyclone water distributor 3 is positioned below the horizontal plane of the aerator 5. FIG. 2 is a schematic structural diagram of a cyclone water distributor in the invention, wherein 3 is a cyclone water distributor and 5 is an aerator. In the utility model, the cyclone water distributor 3 is preferably provided with saw-toothed uniformly distributed holes, and the positions of the holes are provided with water distribution guide plates; the tangential preference of the water distribution guide plate is coincided with the perpendicular bisector of the opening. The utility model discloses in, the delivery port of interior tower 1 passes through cyclone water-locator 3 and links to each other with the water inlet of outer tower 2.
In the present invention, the inner diameter ratio of the inner tower 1 and the outer tower 2 is preferably 1: (2-5), more preferably 1: (2.5-4.5). The utility model discloses in, interior tower 1 and 2 bottom surfaces of outer tower are at same horizontal plane, interior tower 1 is preferred to be higher than outer tower 2200 ~ 500mm, more preferably 250 ~ 450 mm.
The utility model discloses in, the tower wall of outer tower 2 is provided with circulation circuit water inlet 7 and circulation circuit delivery port 8 from bottom to top, circulation circuit water inlet 7 and circulation circuit delivery port 8 all communicate with the tower wall tangential of outer tower 2. In the present invention, when the circulation circuit water inlets 7 are plural, all the circulation circuit water inlets 7 are located on the same horizontal plane. In the present invention, when the circulation circuit water outlets 8 are plural, all the circulation circuit water outlets 8 are located on the same horizontal plane. FIG. 3 is a schematic view of the communication between the circulation loops of the external tower of the present invention, wherein the water inlet pipe of the circulation loop is 7, and the water outlet pipe of the circulation loop is 8.
In the utility model, the water inlet 7 of the circulation loop which is horizontally tangent to the tower wall of the outer tower can inject water in the horizontal direction, so that the wastewater is horizontally tangent to flow upwards, thereby promoting the mixed system containing the wastewater between the interlayer of the inner tower 1 and the interlayer of the outer tower 2 to obtain rapid mixing reaction in the Fenton reaction stage, and solving the problem of stirring and mixing the solution in the space shaped like a Chinese character 'hui'; the water outlet 8 of the circulation loop and the water inlet 7 of the circulation loop can form backflow water jet acceleration in the interlayer of the inner tower 1 and the outer tower 2, so that the problem of catalyst consumption caused by aeration stirring is avoided, and the Fenton reaction efficiency in the integrated iron-carbon-Fenton coupling catalytic oxidation reactor is improved.
In the utility model, an oxidant dosing device 11 is arranged outside the tower body of the outer tower 2. The utility model discloses in, the water inlet of oxidant charge device 11 links to each other with circulation circuit delivery port 8, the delivery port of oxidant charge device 11 links to each other with circulation circuit inlet tube 7. The utility model discloses an oxidant charge device 11 realizes the interpolation demand to oxidant in the fenton catalytic oxidation reaction. The utility model discloses it does not specially define to oxidant charge device 11's structure, adopt the charge device that the skilled in the art is familiar with, specifically like pipeline formula doser.
The utility model discloses in, still be provided with circulating pump 12 on the connecting pipeline of oxidant charge device 11 and circulation circuit water inlet 7, the water inlet of circulating pump 12 links to each other with oxidant charge device 11's delivery port, circulating pump 12's delivery port links to each other with circulation circuit water inlet 7. The utility model discloses a circulating pump 12 provides circulation power for circulation circuit and circulation circuit water inlet penetrate water.
The utility model discloses in, the tower wall upper end of outer tower 2 is provided with overflow weir 9, overflow weir 9 is located circulation circuit delivery port 8's horizontal plane more than. The structure of the overflow weir 9 is not particularly limited, and the overflow weir mouth known to those skilled in the art can be adopted, specifically, if the inner wall of the overflow weir is a sawtooth shape. The utility model discloses in, overflow weir 9 is favorable to the equipartition to go out the water, prevents and treats that rivers form the rivers short circuit between exit position and water inlet.
In the utility model, the upper end of the side wall of the outer tower 2 is provided with a water outlet 10; the water outlet 10 is located on the outer wall of the overflow weir 9. The utility model discloses in, rivers flow 9 through overflow weir and get into 5 discharges in outlet after to interior tower 1 and 2 intermediate layer tops of outer tower, and the surplus water passes through circulation circuit delivery port 8 by the increasing speed of circulating pump 12 after, carries into circulation circuit water inlet 7, including tower 1 and the 2 interbedded system inner circulations of outer tower, continues to carry out fenton catalytic oxidation reaction.
The utility model also provides a waste water treatment method based on above-mentioned technical scheme integration iron carbon-fenton coupling catalytic oxidation reactor, including following step:
waste water and acid liquor are added into an integrated iron-carbon-Fenton coupling catalytic oxidation reactor from a water inlet of an inner tower 1, in an aeration atmosphere provided by an aerator 5, after a mixed liquid formed by the waste water and the acid liquor in the inner tower 1 is subjected to iron-carbon micro-electrolysis reaction, the obtained primary treated water enters an outer tower 2 through a cyclone water distributor 3, and is mixed with an oxidant under the action of horizontal tangential upflow to perform Fenton catalytic oxidation reaction, and the effluent is discharged from a water outlet of the outer tower 2.
In the present invention, the components are commercially available products known to those skilled in the art, unless otherwise specified.
The utility model discloses in adding integration iron carbon-fenton coupling catalytic oxidation reactor with waste water and acidizing fluid by the water inlet of inner tower 1, in the aeration atmosphere that aerator 5 provided, the mixed liquid that waste water and acidizing fluid formed takes place behind the little electrolytic reaction of iron carbon in inner tower 1, obtains primary treatment water.
The utility model has no special limitation on the source of the wastewater, and can be obtained by adopting the wastewater source well known by the technical personnel in the field. In the present invention, the acid solution is preferably sulfuric acid. The utility model discloses in, the pH value of the mixed liquid that the addition of sulphuric acid formed with assurance waste water and acidizing fluid is 3 ~ 4 for the standard, more preferably is 3.2 ~ 3.8.
The utility model discloses in, the air water ratio of aerator is preferred 1 ~ 5 in interior tower 1, more preferred 2 ~ 4.
The utility model discloses in, the time of indisputable carbon micro-electrolysis reaction is preferred 20 ~ 60min, more preferred 25 ~ 50 min.
After obtaining primary treatment water, the utility model discloses will primary treatment water gets into outer tower 2 through whirl water-locator 3, under the effect of horizontal tangential upflow, mixes with the oxidant, carries out fenton catalytic oxidation reaction, and the outlet water is discharged by the outlet of outer tower 2.
In the present invention, the oxidizing agent is preferably hydrogen peroxide; the ratio of the chemical oxygen demand of the hydrogen peroxide to the chemical oxygen demand of the wastewater in the Fenton catalytic oxidation reaction is preferably (0.5-3): 1, more preferably (1-2): 1. in the present invention, the COD of the wastewater in the Fenton catalytic oxidation reaction is the COD of the wastewater in the Fenton catalytic oxidation reactionCr。
The utility model discloses in, the horizontal acceleration rate of horizontal tangent upwelling is provided by the circulation circuit water inlet among the integrated iron carbon-fenton coupling catalytic oxidation reactor, the preferred 1.0 ~ 3.0m/s, more preferably 1.5 ~ 2.0m/s of penetrating water rate of circulation circuit water inlet. In the present invention, the power of the circulation circuit is provided by the circulation pump.
The utility model discloses it is preferred be in begin to go out water, more preferably 40 ~ 80min by the outlet after Fenton catalytic oxidation reaction carries out 30 ~ 120 min.
In order to further illustrate the present invention, the following examples are provided to describe the integrated iron-carbon-fenton coupled catalytic oxidation reactor and wastewater treatment method in detail, but they should not be construed as limiting the scope of the present invention.
Example 1
Use the utility model provides an integration iron carbon-fenton coupling catalytic oxidation reactor carries out waste water treatment, wherein, the internal diameter ratio of inner tower and outer tower is 1: 2, the height of the inner tower is 300mm higher than that of the outer tower, the composition of a filler layer in the inner tower is 84.5 wt.% of zero-valent iron, 15 wt.% of carbon powder and 0.5 wt.% of rare metal oxide, the number of the layers of the filler layer is 1, and the total volume of the filler layer accounts for 30% of the volume of the cavity in the inner tower:
the source of the wastewater is the water produced after biochemical treatment of the Maotai-flavor liquor brewing wastewater, COD in the wastewater is 100-150 mg/L, TP in the wastewater is 35mg/L, and chroma is 128 times (dilution times);
adding wastewater and sulfuric acid into an integrated iron-carbon-Fenton coupling catalytic oxidation reactor from a water inlet of an inner tower, wherein the flow of the wastewater is 5m3The pH value of a mixed solution formed by the wastewater and the sulfuric acid is controlled to be 3.5-4, the gas-water ratio of an aerator is 4, after iron-carbon micro-electrolysis reaction occurs in an inner tower for 30min, the obtained primary treated water enters an outer tower through a cyclone water distributor, the water injection rate at a water inlet of a circulation loop is 1.7m/s, and under the action of horizontal tangential upflow, the ratio of the chemical oxygen demand of the wastewater in the Fenton catalytic oxidation reaction is 1.2: mixing the primary treated water with an oxidant hydrogen peroxide, and carrying out a Fenton catalytic oxidation reaction, wherein after the Fenton catalytic oxidation reaction is carried out for 40min, water begins to be discharged from a water outlet of an outer tower.
Detecting the quality of the wastewater at the water inlet of the inner tower and the produced water after the wastewater treatment, wherein the obtained test result is shown in table 1; wherein, the national standard limit is the index limit given in table 3 of the discharge Standard of pollutants for fermented alcohol and distilled spirit industry Water (GB 27631-2011).
TABLE 1 example 1 Water quality test results (unit: mg/L)
| CODcr | Total phosphorus TP | Chroma (dilution multiple) | |
| Front end biochemical treatment of wasteWater (W) | 132.12 | 32.42 | <128 |
| Water production in reactor | 23.61 | 0.138 | <16 |
| National limit | 50 | 0.5 | 20 |
As can be seen from the table 1, the utility model provides an integrated iron carbon-Fenton coupling catalytic oxidation reactor carries out waste water treatment, and the gained product water is showing to be superior to the national standard limit value, guarantees outlet product water quality of water.
Example 2
Use the utility model provides an integration iron carbon-fenton coupling catalytic oxidation reactor carries out waste water treatment, wherein, the internal diameter ratio of inner tower and outer tower is 1: 2, the height of the inner tower is 300mm higher than that of the outer tower, the composition of a filler layer in the inner tower is 69.5 wt.% of zero-valent iron, 30 wt.% of carbon powder and 0.5 wt.% of rare metal oxide, the number of the layers of the filler layer is 3, and the total volume of the filler layer accounts for 40% of the volume of the cavity in the inner tower:
the source of the wastewater is raw leachate water of a certain household garbage landfill, COD in the wastewater is 3000-5000 mg/L, and TP in the wastewater is 145 mg/L;
adding wastewater and sulfuric acid into an integrated iron-carbon-Fenton coupling catalytic oxidation reactor from a water inlet of an inner tower, wherein the flow of the wastewater is 2m3Controlling the pH value of a mixed solution formed by the wastewater and the sulfuric acid to be 3.5-4, controlling the gas-water ratio of an aerator to be 5, carrying out iron-carbon micro-electrolysis reaction in an inner tower for 40min, allowing the obtained primary treated water to enter an outer tower through a cyclone water distributor, and allowing a water inlet of a circulation loop to enter a water inlet of a circulation loopThe water injection rate is 2.0m/s, and under the action of horizontal tangential upflow, the ratio of the chemical oxygen demand of the waste water in the Fenton catalytic oxidation reaction to the hydrogen peroxide is 1.5: mixing the primary treated water with an oxidant hydrogen peroxide, and carrying out Fenton catalytic oxidation reaction, wherein after the Fenton catalytic oxidation reaction is carried out for 80min, water begins to be discharged from a water outlet of an outer tower.
The quality of the wastewater at the water inlet of the inner tower and the product water after wastewater treatment is detected, and the obtained test results are shown in table 2.
TABLE 2 example 2 Water quality test results (unit: mg/L)
| CODcr | Total phosphorus TP | Chroma (dilution multiple) | |
| Raw water of landfill leachate | 4232 | 135 | / |
| Water production in reactor | 1223 | 0.13 | 64 |
As can be seen from the table 2, the utility model provides an integrated iron carbon-Fenton coupling catalytic oxidation reactor carries out waste water treatment, is showing and is improving waste water quality.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. An integrated iron-carbon-Fenton coupling catalytic oxidation reactor is characterized by comprising an inner tower (1) and an outer tower (2) which are of a sleeve structure; the central axes of the inner tower (1) and the outer tower (2) are superposed; the water outlet of the inner tower (1) is connected with the water inlet of the outer tower (2) through a cyclone water distributor (3);
the inner tower (1) is sequentially provided with a water inlet (6), a packing layer (4) and an aerator (5) from top to bottom, and the packing layer (4) is an iron-carbon packing layer; the rotational flow water distributor (3) is positioned at the bottom of the inner tower (1);
the tower wall of the outer tower (2) is provided with a circulation loop water inlet (7), a circulation loop water outlet (8) and a water outlet (10) from bottom to top, and the circulation loop water inlet (7) and the circulation loop water outlet (8) are both tangentially communicated with the tower wall of the outer tower (2);
an oxidant dosing device (11) is arranged outside the outer tower (2); the water inlet of the oxidant dosing device (11) is connected with the water outlet (8) of the circulation loop, and the water outlet of the oxidant dosing device (11) is connected with the water inlet (7) of the circulation loop.
2. The integrated iron-carbon-fenton coupled catalytic oxidation reactor according to claim 1, wherein the ratio of the inner diameters of the inner tower (1) and the outer tower (2) is 1: (2-5); the bottom surfaces of the inner tower (1) and the outer tower (2) are on the same horizontal plane, and the inner tower (1) is 200-500 mm higher than the outer tower (2).
3. The integrated iron-carbon-Fenton coupling catalytic oxidation reactor according to claim 1, wherein the number of layers of the packing layer (4) is 1-3; the total volume of the filler layer (4) accounts for 20-50% of the inner volume of the inner tower (1);
when the number of the filler layers (4) is multiple, the filler layers are arranged at intervals.
4. The integrated iron-carbon-Fenton coupling catalytic oxidation reactor according to claim 1, wherein the cyclone water distributor (3) is provided with saw-toothed uniformly-distributed holes, and water distribution guide plates are arranged at the positions of the holes; the tangential direction of the water distribution guide plate is coincided with the perpendicular bisector of the opening.
5. The integrated iron-carbon-Fenton coupling catalytic oxidation reactor according to claim 1, wherein a circulating pump (12) is further arranged on a connecting pipeline between the oxidant dosing device (11) and the circulation loop water inlet (7), a water inlet of the circulating pump (12) is connected with a water outlet of the oxidant dosing device (11), and a water outlet of the circulating pump (12) is connected with the circulation loop water inlet (7).
6. The integrated iron-carbon-fenton coupled catalytic oxidation reactor according to claim 1, wherein a plurality of the water inlets (7) of the circulation loop are provided, and all the water inlets (7) of the circulation loop are positioned on the same horizontal plane;
the number of the circulating loop water outlets (8) is multiple, and all the circulating loop water outlets (8) are located on the same horizontal plane.
7. The integrated iron-carbon-fenton coupled catalytic oxidation reactor according to claim 1, characterized in that the water inlet (6) is arranged at the top of the inner tower (1).
8. The integrated iron-carbon-fenton coupled catalytic oxidation reactor according to claim 1, characterized in that the wall of the outer column (2) is provided with a weir (9), which weir (9) is located above the level of the water outlet (8) of the circulation loop; the overflow weir (9) is externally connected with a water outlet (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023131782.2U CN214422430U (en) | 2020-12-23 | 2020-12-23 | Integrated iron-carbon-Fenton coupling catalytic oxidation reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023131782.2U CN214422430U (en) | 2020-12-23 | 2020-12-23 | Integrated iron-carbon-Fenton coupling catalytic oxidation reactor |
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| CN214422430U true CN214422430U (en) | 2021-10-19 |
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| CN202023131782.2U Withdrawn - After Issue CN214422430U (en) | 2020-12-23 | 2020-12-23 | Integrated iron-carbon-Fenton coupling catalytic oxidation reactor |
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- 2020-12-23 CN CN202023131782.2U patent/CN214422430U/en not_active Withdrawn - After Issue
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