CN108911236B - Moving bed oxidation reactor suitable for sewage treatment - Google Patents
Moving bed oxidation reactor suitable for sewage treatment Download PDFInfo
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- CN108911236B CN108911236B CN201810754442.3A CN201810754442A CN108911236B CN 108911236 B CN108911236 B CN 108911236B CN 201810754442 A CN201810754442 A CN 201810754442A CN 108911236 B CN108911236 B CN 108911236B
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- oxidation
- zone
- reduction reaction
- oxidation reaction
- sewage
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- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 221
- 239000010865 sewage Substances 0.000 title claims abstract description 85
- 230000003647 oxidation Effects 0.000 title claims abstract description 68
- 238000006722 reduction reaction Methods 0.000 claims abstract description 144
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 93
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 238000005192 partition Methods 0.000 claims abstract description 26
- 230000009471 action Effects 0.000 claims abstract description 11
- 239000002957 persistent organic pollutant Substances 0.000 claims abstract description 9
- 241000700605 Viruses Species 0.000 claims abstract description 6
- 241000894006 Bacteria Species 0.000 claims abstract description 5
- 239000000725 suspension Substances 0.000 claims description 38
- 238000000926 separation method Methods 0.000 claims description 27
- 238000001556 precipitation Methods 0.000 claims description 26
- 238000004062 sedimentation Methods 0.000 claims description 25
- 238000011084 recovery Methods 0.000 claims description 20
- 230000001502 supplementing effect Effects 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 11
- 229910019142 PO4 Inorganic materials 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000010452 phosphate Substances 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 7
- 239000007800 oxidant agent Substances 0.000 claims description 7
- 239000000969 carrier Substances 0.000 claims description 6
- 230000001590 oxidative effect Effects 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 238000011068 loading method Methods 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 238000010531 catalytic reduction reaction Methods 0.000 claims description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 238000006864 oxidative decomposition reaction Methods 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 238000010668 complexation reaction Methods 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000006479 redox reaction Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 11
- 230000009965 odorless effect Effects 0.000 description 8
- 239000011148 porous material Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- -1 phosphate radicals Chemical class 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention provides a moving bed oxidation reactor suitable for sewage treatment, which belongs to the technical field of sewage treatment and comprises a reduction reaction chamber, an oxidation reaction chamber, a sealing partition board and a flow guide pipe, wherein the reduction reaction chamber and the oxidation reaction chamber are separated by the sealing partition board; the draft tube is arranged on the sealing partition plate and is communicated with the reduction reaction chamber and the oxidation reaction chamber. The invention adopts the comprehensive treatment technology of reduction decomposition and oxidation decomposition, so that harmful organic pollutants and virus and bacteria in the water body are decomposed and removed under the actions of strong oxidation reaction and strong oxidation-reduction reaction, and the aim of cleaning the water body is achieved.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a moving bed oxidation reactor suitable for sewage treatment.
Background
The present situation of village and town distribution in China has the characteristics of large quantity, small scale, aggregation and dispersion and miscellaneous topography, and the construction of rural domestic sewage treatment facilities is influenced by a plurality of factors such as the distribution status, economic level, technical strength, life style and the like of villages, so that the domestic sewage of villages cannot be treated according to a uniform fixed mode.
At present, many domestic sewage treatment devices are provided, however, the devices are complex and have high manufacturing cost, and are not beneficial to large-scale popularization and use.
Disclosure of Invention
In view of the above, it is necessary to provide a moving bed oxidation reactor suitable for sewage treatment, which directly performs catalytic reduction decomposition and catalytic oxidative decomposition on organic pollutants and virus germs in a polluted water body, and complexes phosphate radicals in the water body with metal salts to generate phosphoric acid substances after being hydroxylated on the surface, so as to perform rapid and efficient comprehensive treatment on the sewage body.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the moving bed oxidation reactor comprises a reduction reaction chamber, an oxidation reaction chamber, a sealing partition plate and a flow guide pipe, wherein the reduction reaction chamber is separated from the oxidation reaction chamber by the sealing partition plate; the flow guide pipe is arranged on the sealing partition plate and is communicated with the reduction reaction chamber and the oxidation reaction chamber;
a reduction reaction zone for carrying out reduction reaction on sewage is arranged in the reduction reaction chamber, a water inlet interface which is communicated with the reduction reaction zone and used for discharging the sewage is arranged above the reduction reaction zone, a sedimentation chamber which is used for sedimentation of the sewage after the reduction reaction is arranged below the reduction reaction zone, a forced diversion zone which is used for diversion of the sewage after the sedimentation is arranged on the outer side of the reduction reaction zone, the reduction reaction zone is communicated with the forced diversion zone through the sedimentation chamber, the forced diversion zone is communicated with the upper end of the diversion pipe, the sewage treated by the reduction reaction chamber is discharged into the oxidation reaction chamber through the diversion pipe, the reduction reaction zone is filled with a carrier for loading active metal which excites the reducing agent, and the sedimentation chamber is provided with a sewage drain pipe which is communicated with the outside and is used for discharging sediment;
The oxidation reaction chamber is provided with an oxidation reaction zone for carrying out a first oxidation reaction on sewage discharged by the flow guide pipe, the bottom of the oxidation reaction zone is provided with a vortex lifter for lifting the sewage in the oxidation reaction zone, the lower end of the flow guide pipe extends into the oxidation reaction zone and is positioned above the vortex lifter, and the oxidation reaction zone is filled with a carrier for loading active metals of a catalytic oxidant;
The oxidation reaction chamber is also provided with a semi-suspension oxidation zone for carrying out secondary oxidation reaction on the sewage after the primary oxidation reaction at the upper part of the oxidation reaction zone, a suspension oxidation zone for carrying out tertiary oxidation reaction on the sewage after the secondary oxidation reaction is arranged outside the semi-suspension oxidation zone, a precipitation separation zone for separating the sewage after the tertiary oxidation reaction is arranged outside the suspension oxidation zone, a three-phase separator is arranged in the precipitation separation zone, a water outlet interface which is respectively communicated with the precipitation separation zone and is used for discharging clean water after precipitation separation and an exhaust port which is used for discharging gas decomposed by organic pollutants participating in the oxidation reaction are arranged outside the oxidation reaction zone, and a carrier recovery channel which is used for discharging carriers is arranged outside the oxidation reaction zone; the upper part of the semi-suspension oxidation zone is communicated with the suspension oxidation zone, the bottom of the suspension oxidation zone is communicated with the precipitation separation zone and the carrier recovery channel, and a drain pipe for discharging the carrier is arranged at the bottom of the carrier recovery channel.
Further, the reduction reaction chamber comprises a reduction reaction outer shell, a reduction reaction inner shell, a porous water supplementing plate and a porous bottom plate, wherein the bottom plate is arranged on the inner wall of the reduction reaction outer shell, the bottom of the reduction reaction inner shell is arranged on the bottom plate, the water supplementing plate is arranged on the inner wall of the reduction reaction inner shell and is close to the top of the reduction reaction inner shell, and the water inlet interface is arranged on the reduction reaction inner shell and is positioned above the water supplementing plate; the reduction reaction outer shell is positioned on the outer side of the reduction reaction inner shell, the bottom is arranged on the sealing partition plate, the top is communicated with the upper end of the flow guide pipe, the bottom plate, the reduction reaction outer shell and the sealing partition plate form the sedimentation chamber, the reduction reaction inner shell, the water supplementing plate and the bottom plate form the reduction reaction zone, and the forced flow guide zone is formed between the reduction reaction inner shell and the reduction reaction outer shell.
Further, the oxidation reaction chamber comprises an oxidation reaction outer shell, an oxidation reaction inner shell and a forced flow guide barrel, wherein the top of the oxidation reaction outer shell is arranged on the sealing partition plate, the side wall of the oxidation reaction outer shell is provided with the water outlet port and the air outlet, and the bottom of the oxidation reaction outer shell is provided with the sewage discharge pipe; the top of the forced flow guiding barrel is arranged on the sealing partition plate and is positioned on the inner side of the oxidation reaction outer shell, the oxidation reaction inner shell is positioned in the forced flow guiding barrel, the top of the forced flow guiding barrel is connected with the forced flow guiding barrel, and the vortex lifter is arranged at the bottom of the forced flow guiding barrel; the oxidation reaction inner shell is internally provided with an oxidation reaction zone and a semi-suspension oxidation zone, the suspension oxidation zone is formed between the oxidation reaction inner shell and the forced flow guiding barrel, the precipitation separation zone is formed between the forced flow guiding barrel and the oxidation reaction outer shell, and the carrier recovery channel is formed between the oxidation reaction inner shell and the oxidation reaction outer shell.
Further, the upper part of the flow guide pipe is positioned in the reduction reaction zone, and the lower part of the flow guide pipe is positioned in the oxidation reaction zone and the semi-suspension oxidation zone.
Further, the central axis of the draft tube, the reduction reaction inner shell, the reduction reaction outer shell, the oxidation reaction inner shell and the central axis of the forced draft tube are overlapped.
Further, a water collecting bucket is arranged at the upper end of the flow guide pipe, and the water collecting bucket is communicated with the forced flow guide area through a plurality of collecting pipes.
Further, the inner diameter of the carrier recovery channel is smaller than the inner diameter of the precipitation separation zone and the inner diameter of the suspension oxidation.
Further, the aperture of the water supplementing plate is 5-10mm, and the aperture of the bottom plate is 5-10mm.
Further, the moving bed oxidation reactor also comprises a backwash water connecting pipe, and the backwash water connecting pipe part passes through the reduction reaction outer shell and the reduction reaction inner shell, is positioned in the reduction reaction zone and is positioned above the bottom plate.
Further, a three-phase separator is arranged in the precipitation separation zone.
Compared with the prior art, the invention has the following beneficial effects:
The invention adopts the comprehensive treatment technology of reduction decomposition and oxidation decomposition, so that harmful organic pollutants and virus and bacteria in the water body are decomposed and removed under the actions of strong oxidation reaction and strong oxidation-reduction reaction, and the aim of cleaning the water body is achieved.
Drawings
FIG. 1 is a schematic diagram of a moving bed oxidation reactor suitable for wastewater treatment according to a preferred embodiment of the present invention.
Fig. 2 is a cross-sectional view taken along the A-A portion of fig. 1.
Description of the main reference signs
| Reduction reaction chamber 1 | Oxidation reaction chamber 2 | Sealing separator 3 |
| Flow guiding pipe 4 | Reduction reaction zone 10 | Inlet port 11 |
| Settling chamber 12 | Forced flow guiding region 13 | Blow-down pipe 121 |
| Oxidation reaction zone 21 | Vortex lifter 22 | Semi-suspended oxidation zone 23 |
| Suspended oxidation zone 24 | Precipitation separation zone 25 | Water outlet interface 251 |
| Exhaust port 252 | Carrier recovery channel 26 | Drain pipe 261 |
| Reduction reaction housing 14 | Reduction reaction inner shell 15 | Water replenishing plate 16 |
| Bottom plate 17 | Oxidation reaction housing 27 | Inner oxidation reaction shell 28 |
| Forced flow guiding barrel 29 | Water collection bucket 131 | Collecting pipe 132 |
| Upper barrel 281 | Lower barrel 282 | Upper portion 271 |
| Lower portion 272 | Three-phase separator 253 | Intake pipe 283 |
The invention will be further described in the following detailed description in conjunction with the above-described figures.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having" and any variations thereof in the description of the invention and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
In order to enable those skilled in the art to better understand the present invention, the following description will make clear and complete descriptions of the technical solutions according to the embodiments of the present invention with reference to the accompanying drawings.
Referring to fig. 1, in a preferred embodiment of the present invention, a moving bed oxidation reactor suitable for sewage treatment includes a reduction reaction chamber 1, an oxidation reaction chamber 2, a sealing partition 3 and a flow guiding pipe 4, wherein the reduction reaction chamber 1 and the oxidation reaction chamber 2 are separated by the sealing partition 3. The flow guide pipe 4 is installed on the sealing partition plate 3 and is communicated with the reduction reaction chamber 1 and the oxidation reaction chamber 2. The volume ratio of the reduction reaction chamber 1 to the oxidation reaction chamber 2 is 1:2, so that the oxidation reaction process is longer than the reduction reaction process, and the aim of effectively treating sewage is fulfilled.
A reduction reaction zone 10 for carrying out reduction reaction on sewage is arranged in the reduction reaction chamber 1, a water inlet port 11 communicated with the reduction reaction zone 10 and used for discharging the sewage is arranged above the reduction reaction zone 10, a sedimentation chamber 12 used for sedimentation of the sewage after the reduction reaction is arranged below the reduction reaction zone 10, a forced diversion zone 13 used for diversion of the sewage after the sedimentation is arranged outside the reduction reaction zone 10, the reduction reaction zone 10 is communicated with the forced diversion zone 13 through the sedimentation chamber 12, the forced diversion zone 13 is communicated with the upper end of the diversion pipe 4 and used for discharging the sewage treated by the reduction reaction chamber 1 into the oxidation reaction chamber 2 through the diversion pipe 4, a carrier loaded with active metal for exciting a reducing agent is filled in the reduction reaction zone 10, and a blow-down pipe 121 communicated with the outside is arranged in the sedimentation chamber 12 and used for discharging sediment. It will be appreciated that the invention can pump sewage to the inlet connection 11 by means of a water pump.
The oxidation reaction chamber 2 is provided with an oxidation reaction zone 21 for carrying out a first oxidation reaction on the sewage discharged by the flow guide pipe 4, the bottom of the oxidation reaction zone 21 is provided with a vortex lifter 22 for lifting the sewage in the oxidation reaction zone, the lower end of the flow guide pipe 4 extends into the oxidation reaction zone 21 and is positioned above the vortex lifter 22, the sewage treated in the reduction reaction chamber 1 is firstly discharged to the oxidation reaction zone 21 for treatment, and the oxidation reaction zone 21 is filled with carriers of active metals loaded with a catalytic oxidant.
The oxidation reaction chamber 2 is further provided with a semi-suspension oxidation zone 23 for carrying out secondary oxidation reaction on the sewage after the primary oxidation reaction at the upper part of the oxidation reaction zone 21, a suspension oxidation zone 24 for carrying out tertiary oxidation reaction on the sewage after the secondary oxidation reaction is arranged outside the semi-suspension oxidation zone 23, a precipitation separation zone 25 for separating the sewage after the tertiary oxidation reaction is arranged outside the suspension oxidation zone 24, a three-phase separator 253 is arranged in the precipitation separation zone 25, a water outlet interface 251 which is respectively communicated with the precipitation separation zone 25 and is used for discharging clean water after precipitation separation and an exhaust port 252 which is used for discharging gas decomposed by organic pollutants participating in oxidation reaction are arranged outside the oxidation reaction zone 21, and a carrier recovery channel 26 for discharging carriers is arranged outside the oxidation reaction zone 21; the upper part of the semi-suspension oxidation zone 23 is communicated with the suspension oxidation zone 24, the bottom of the suspension oxidation zone 24 is communicated with the precipitation separation zone 25 and the carrier recovery channel 26, and a drain 261 for discharging the carrier is arranged at the bottom of the carrier recovery channel 26.
In the embodiment of the invention, the carrier for loading the active metal for exciting the reducing agent can be one or two of bamboo charcoal particles or active carbon particles; the carrier of the active metal of the supported catalytic oxidant can be one or two of bamboo charcoal particles or active carbon particles; in addition, the oxidizing agent in the oxidation reaction chamber 2 may be one or more of hydroxyl radical, oxygen radical, and superoxide anion (.oh,. O, O 3 -).
With continued reference to fig. 1, specifically, the reduction reaction chamber 1 is fixedly connected with the sealing partition plate 3 by welding or by integrally forming, and includes a reduction reaction outer shell 14, a reduction reaction inner shell 15, a porous water supplementing plate 16 and a porous bottom plate 17, the bottom plate 17 is mounted on the inner wall of the reduction reaction outer shell 14 by welding or the like, the water supplementing plate 16 is mounted on the inner wall of the reduction reaction inner shell 15 by welding or the like and is close to the top of the reduction reaction inner shell 15, and the water inlet interface 11 is disposed on the reduction reaction inner shell 15 and is located above the water supplementing plate 16. In the preferred embodiment of the present invention, the water replenishing plate 16 is made of a lightweight aluminum alloy plate, and in addition, the water replenishing plate 16 is spaced from the upper end of the reduction inner case 15 by 10-20cm, so that the overflow of the sewage from the reduction inner case 15 can be prevented.
The reduction reaction outer shell 14 is positioned at the outer side of the reduction reaction inner shell 15, the bottom is arranged on the sealing partition plate 3 in a welding mode and the like, and the top is communicated with the upper end of the flow guide pipe 4. The sedimentation chamber 12 is formed among the bottom plate 17, the reduction reaction outer shell 14 and the sealing partition plate 3, the reduction reaction zone 10 is formed among the reduction reaction inner shell 15, the water supplementing plate 16 and the bottom plate 17, and the forced diversion zone 13 is formed among the reduction reaction inner shell 15 and the reduction reaction outer shell 14.
In the preferred embodiment of the present invention, the pore size on the bottom plate 17 is 5-10mm, if the pore size is larger than the above value, the carrier easily falls into the settling chamber 12 and cannot play a role in reduction filtration, and if the pore size is smaller than the above value, the carrier easily blocks the pores, and the water treated in the reduction reaction zone 10 cannot be discharged into the settling chamber 12; the pore size on the water supplementing plate 16 is 5-10cm, so that the sewage is uniformly guided into the reduction reaction zone 10, and the problem of poor sewage treatment effect caused by uneven sewage distribution is avoided.
In the preferred embodiment of the present invention, the upper ends of the outer reduction reaction casing 14 and the inner reduction reaction casing 15 are in the same plane, and the upper ends are fixedly connected by a channel steel No.4, and in addition, the distance between the outer reduction reaction casing 14 and the inner reduction reaction casing 15 is 15-30cm.
The oxidation reaction chamber 2 comprises an oxidation reaction outer shell 27, an oxidation reaction inner shell 28 and a forced flow guiding barrel 29, wherein the top of the oxidation reaction outer shell 27 is arranged on the sealing partition plate 3 in a welding or integrated forming mode, the side wall is provided with the water outlet port 251 and the air outlet 252, and the bottom is provided with the drain pipe 261. In a preferred embodiment of the present invention, the oxidation reaction housing 27 is integrally formed with the reduction reaction housing 14.
The top of the forced flow guiding barrel 29 is arranged on the sealing partition plate 3 in a welding or integral forming mode and is positioned on the inner side of the oxidation reaction outer shell 27, the oxidation reaction inner shell 28 is partially positioned in the forced flow guiding barrel 29, the top of the forced flow guiding barrel 29 is connected with the forced flow guiding barrel 29, and the vortex lifter 22 is arranged at the bottom of the forced flow guiding barrel; the oxidation reaction zone 21 and the semi-suspension oxidation zone 23 are formed inside the oxidation reaction inner shell 28, the suspension oxidation zone 24 is formed between the oxidation reaction inner shell and the forced flow guiding barrel 29, the precipitation separation zone 25 is formed between the forced flow guiding barrel 29 and the oxidation reaction outer shell 27, and the carrier recovery channel 26 is formed between the oxidation reaction inner shell 28 and the oxidation reaction outer shell 27.
The upper part of the flow guiding pipe 4 is positioned in the reduction reaction zone 10, and the lower part is positioned in the oxidation reaction zone 21 and the semi-suspension oxidation zone 23.
In the preferred embodiment of the present invention, the central axes of the draft tube 4, the reduction reaction inner shell 15, the reduction reaction outer shell 14, the oxidation reaction outer shell 27, the oxidation reaction inner shell 28 and the forced draft tube 29 are coincident, so that the sewage treatment effect is optimized.
Referring to fig. 2 together, further, in order to make the upper end of the forced flow guiding area 13 communicate with the flow guiding pipe 4, a water collecting bucket 131 is disposed at the upper end of the flow guiding pipe 4, the water collecting bucket 131 communicates with the forced flow guiding area 13 through one or several collecting pipes 132, specifically, one end of the one or several collecting pipes 132 is connected with the water collecting bucket 131 through welding or an integral forming manner, and the other end is connected with the reduction reaction inner shell 15 through welding or an integral forming manner. In the preferred embodiment of the present invention, the inner diameter of the water collecting hopper 131 is larger than the inner diameter of the guide pipe 4, so that the problem that the excessive amount of water introduced in the forced guiding area 13 overflows from the guide pipe 4 can be prevented, in particular, the cross section of the water collecting hopper 131 is tapered, so that the problem of the excessive amount of water can be effectively alleviated, and in addition, the plurality of collecting pipes 132 are equidistantly distributed, so that the introduced amount of water is more uniform.
In a preferred embodiment of the present invention, the flow guiding tube 4, the reduction reaction inner shell 15, the reduction reaction outer shell 14 and the forced flow guiding barrel 29 are all substantially cylindrical, the forced flow guiding barrel 29 is cylindrical, the oxidation reaction inner shell 28 includes an upper barrel 281 and a lower barrel 282, the upper barrel 281 is cylindrical, the upper opening side wall is connected to the inner circumference of the forced flow guiding barrel 29 by six number 4 channels in a circumferential halving, the lower opening side wall is connected to the upper opening side wall of the lower barrel 282 by six number 4 channels in a circumferential halving, and is connected to the inner circumference of the forced flow guiding barrel 29 by six number 4 channels in a circumferential halving, and in addition, the lower opening distance of the flow guiding tube 4 is 30-50cm. The lower barrel 282 is mainly composed of an upper truncated cone and a lower truncated cone, the inner diameter of the upper opening and the lower opening is smaller than the inner diameter of the middle part, the side wall of the lower opening of the lower barrel 282 is connected with the side wall of the bottom of the oxidation reaction shell 27 by the number 4 channel steel in an equidistant and parallel mode according to four equal circumferences, and the lower opening of the forced flow guiding barrel 29 is approximately flush with the lower opening of the upper barrel 281.
In a preferred embodiment of the present invention, the oxidation reaction housing 27 includes an upper portion 271 and a lower portion 272, the upper portion 271 is a cylinder, the top is fixedly connected with the sealing partition 3 by welding or the like, the lower opening is connected with the upper opening of the lower portion 272, the lower opening of the lower portion 272 is provided with a carrier collecting bucket and the drain 261, the drain 261 is fixed at the lower opening of the lower portion 272 by a connecting flange, the cross section of the lower portion 272 is a cone, and the lower portion 272 is located outside a lower circular table of the lower tub 282, and the carrier recovery channel 26 is formed between the lower circular table and the carrier collecting bucket.
In addition, in order to prevent the corrosion of the reactor, the reduction reaction outer shell, the oxidation reaction inner shell and the forced flow guiding barrel can be formed by adopting steel welding or winding glass fiber, and corrosion prevention treatment is required after the steel welding is adopted.
In order to effectively clean the reduction reaction zone 10, a backwash water connection pipe is further disposed in the reduction reaction chamber 1, the backwash water connection pipe is inserted into the reduction reaction zone 10 and is connected with an external water supply device, three annular mounting pipelines are concentrically disposed on the upper surface of the bottom plate 17, the annular pipelines are spaced at a distance of 25cm, and nozzles are disposed on the pipelines and are fixed on the bottom plate 17 by adopting a gate.
In order to perform an efficient oxidation reaction in the oxidation reaction zone 21, the oxidation reaction chamber 2 is further provided with an annular air supply pipe and an air intake pipe 283, and the air intake pipe 283 is connected to the air supply pipe after passing through the oxidation reaction outer casing 27 and the oxidation reaction inner casing 28, so that air is discharged into the oxidation reaction zone 21, and the air is supplied by a high-pressure fan.
The sewage treatment process in the embodiment of the invention comprises the following steps: the sewage is discharged onto the water supplementing plate 16 through the water inlet interface 11, the sewage flows into the reduction reaction zone 10 after being uniformly distributed by the water supplementing plate 16, is reduced and filtered to the sedimentation chamber 12 for sedimentation after being subjected to catalytic reduction reaction in the reduction reaction zone 10, and the sedimentated sewage enters the forced flow guiding zone 13 after the harmful particulate matters in the sewage are sedimentated in the sedimentation chamber 12, and is discharged into the oxidation reaction chamber 2 through the flow guiding pipe 4, specifically, in the reduction reaction zone 10, the nitrate nitrogen in the sewage is firstly reduced into nitrite nitrogen by the excited reducing agent, is further reduced into ammonia nitrogen, and is partially directly reduced into nitrogen for volatilization, wherein the chemical reaction formula of the process is as follows: NO 3-N+H+→NO2-N+H+→NH3-N+N2.
In the oxidation reaction chamber 2, the sewage treated in the reduction reaction chamber 1 enters the oxidation reaction zone 21 to perform a first oxidation reaction, the first oxidation reaction is mainly oxidative decomposition, most of chemical oxygen demand, ammonia nitrogen and virus bacteria in a water body are decomposed into gas and water under the action of an excited strong oxidant, the water and a carrier slowly rise to the semi-suspension oxidation zone 23 to perform a second oxidation reaction under the action of the vortex lifter 22, overflow to the suspension oxidation zone 24 through an upper opening of the oxidation reaction inner shell 28, slowly descend along with the carrier under the action of gravity in the suspension oxidation zone 24, enter the precipitation separation zone 25 through the bottom of the forced flow guiding barrel 29, and the carrier is deposited into the carrier collecting hopper for recycling through the carrier recycling channel 26; the water body entering the precipitation separation area 25 rises in countercurrent, under the action of the three-phase separator 253, suspended particle carriers and inorganic salt substances participating in phosphate radical complexation in the water body generate phosphate substances which are blocked and deposited and separated from the water body, the phosphate substances enter the carrier collection hopper through the carrier recovery channel 26, the phosphate substances are deposited at the bottom of the carrier collection hopper and are discharged through the drain pipe 261, clean water is discharged through the water outlet interface 251, and gas decomposed by organic pollutants participating in oxidation reaction is discharged through the safety vent 252, so that sewage treatment is completed.
In order to better illustrate the sewage treatment effect of the invention, the following experiment is performed:
1. The device comprises: moving bed oxidation reactor (pilot plant), sewage pump and flowmeter
2. Analytical instrument: spectrophotometer, optical microscope, digestion instrument and pressure cooker
3. The method comprises the following steps:
3.1, storing domestic sewage pulled from municipal sewage in a plastic bucket, starting a sewage pump flowmeter to adjust the flow rate, and enabling the sewage to enter a catalytic reduction reaction chamber from the bottom of a reduction reaction column, wherein the filling carrier of the reduction reaction chamber is 1000mm in height, and the effective height of the reaction chamber is 1200mm; the water body after the reduction reaction enters an oxidation reaction chamber from the top liquid flow of the reduction column from the bottom of the oxidation column, the filling height of the oxidation reaction chamber is 1000mm, and the effective height of the oxidation reaction chamber is 1200mm.
3.2 Samples of the treated water at different hydraulic retention times were analyzed as follows:
table 1 Total residence time of the two-stage treatment 60 minutes (mg/l)
| Contaminants (S) | COD | TP | TN | NH3-N | Phenomenon (1) |
| Raw water | 128 | 3.5 | 116 | 23.65 | Pale yellow, having peculiar smell and turbidity |
| Reducing effluent | 99.45 | 0.93 | 63 | Transparent and odorless | |
| Oxidation effluent | 72.3 | 0.16 | 47 | 18 | Transparent and odorless |
| Removal rate% | 43.51 | 95.42 | 59.48 | 23.89 | Average number of 2 weeks of continuous operation |
TABLE 2 Total residence time of two-stage treatment 120 minutes (mg/l)
| Contaminants (S) | COD | TP | TN | NH3-N | Phenomenon (1) |
| Raw water | 98.46 | 3.21 | 106.74 | 22.78 | Pale yellow, having peculiar smell and turbidity |
| Reducing effluent | 48.46 | 0.86 | 16.48 | Transparent and odorless | |
| Oxidation effluent | 18.19 | 0.11 | 10.17 | 3.23 | Transparent and odorless |
| Removal rate of | 80.61 | 96.57 | 90.47 | 85.82 | Average number of 4 weeks of continuous operation |
TABLE 3 Total residence time of two-stage treatment 180 minutes (mg/l)
| Contaminants (S) | COD | TP | TN | NH3-N | Phenomenon (1) |
| Raw water | 187.65 | 3.54 | 118.47 | 32.18 | Pale yellow, having peculiar smell and turbidity |
| Reducing effluent | 47.18 | 0.76 | 13.86 | Transparent and odorless | |
| Oxidation effluent | 16.66 | 0.10 | 9.48 | 2.15 | Transparent and odorless |
| Removal rate of | 91.12 | 97.18 | 92.00 | 90.21 | Average number of 4 weeks of continuous operation |
Table 4 Total residence time of the two-stage treatment 240 minutes (mg/l)
| Contaminants (S) | COD | TP | TN | NH3-N | Phenomenon (1) |
| Raw water | 193.43 | 3.21 | 112.49 | 31.45 | Pale yellow, having peculiar smell and turbidity |
| Reducing effluent | 31.46 | 0.63 | 9.73 | Transparent and odorless | |
| Oxidation effluent | 15.43 | 0.09 | 2.43 | 1.19 | Transparent and odorless |
| Removal rate of | 92.02 | 97.19 | 97.84 | 96.22 | Average number of 4 weeks of continuous operation |
Therefore, the moving bed oxidation reactor suitable for sewage treatment provided by the invention has at least the following beneficial effects:
1. The invention adopts the comprehensive treatment technology of reduction decomposition and oxidation decomposition, so that harmful organic pollutants and virus and bacteria in the water body are decomposed and removed under the actions of strong oxidation reaction and strong oxidation-reduction reaction, and the aim of cleaning the water body is achieved.
2. The invention is provided with the water supplementing plate so as to uniformly distribute the sewage quantity flowing into the reduction reaction zone and prevent the sewage from overflowing.
3. The invention is provided with the bottom plate which can be used for placing the carrier, so that the carrier is prevented from being blocked and sewage treatment can not be completed.
4. The invention has high sewage treatment efficiency and the effect reaches the standard.
It is apparent that the above-described embodiments are only some embodiments of the present invention, but not all embodiments, and the preferred embodiments of the present invention are shown in the drawings, which do not limit the scope of the patent claims. This invention may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the invention are directly or indirectly applied to other related technical fields, and are also within the scope of the invention.
Claims (7)
1. A sewage treatment method of a moving bed oxidation reactor is characterized in that: the moving bed oxidation reactor comprises a reduction reaction chamber, an oxidation reaction chamber, a sealing partition board and a flow guide pipe, wherein the reduction reaction chamber and the oxidation reaction chamber are separated by the sealing partition board; the flow guide pipe is arranged on the sealing partition plate and is communicated with the reduction reaction chamber and the oxidation reaction chamber;
a reduction reaction zone for carrying out reduction reaction on sewage is arranged in the reduction reaction chamber, a water inlet interface which is communicated with the reduction reaction zone and used for discharging the sewage is arranged above the reduction reaction zone, a sedimentation chamber which is used for sedimentation of the sewage after the reduction reaction is arranged below the reduction reaction zone, a forced diversion zone which is used for diversion of the sewage after the sedimentation is arranged on the outer side of the reduction reaction zone, the reduction reaction zone is communicated with the forced diversion zone through the sedimentation chamber, the forced diversion zone is communicated with the upper end of the diversion pipe, the sewage treated by the reduction reaction chamber is discharged into the oxidation reaction chamber through the diversion pipe, the reduction reaction zone is filled with a carrier for loading active metal which excites the reducing agent, and the sedimentation chamber is provided with a sewage drain pipe which is communicated with the outside and is used for discharging sediment;
The oxidation reaction chamber is provided with an oxidation reaction zone for carrying out a first oxidation reaction on sewage discharged by the flow guide pipe, the bottom of the oxidation reaction zone is provided with a vortex lifter for lifting the sewage in the oxidation reaction zone, the lower end of the flow guide pipe extends into the oxidation reaction zone and is positioned above the vortex lifter, and the oxidation reaction zone is filled with a carrier for loading active metals of a catalytic oxidant;
The oxidation reaction chamber is also provided with a semi-suspension oxidation zone for carrying out secondary oxidation reaction on the sewage after the primary oxidation reaction at the upper part of the oxidation reaction zone, a suspension oxidation zone for carrying out tertiary oxidation reaction on the sewage after the secondary oxidation reaction is arranged outside the semi-suspension oxidation zone, a precipitation separation zone for separating the sewage after the tertiary oxidation reaction is arranged outside the suspension oxidation zone, a three-phase separator is arranged in the precipitation separation zone, a water outlet interface which is respectively communicated with the precipitation separation zone and used for discharging clean water after precipitation separation and an exhaust port used for discharging gas decomposed by organic pollutants participating in the oxidation reaction are arranged outside the oxidation reaction zone, and a carrier recovery channel used for discharging carriers is arranged outside the oxidation reaction zone; the upper part of the semi-suspension oxidation zone is communicated with the suspension oxidation zone, the bottom of the suspension oxidation zone is communicated with the precipitation separation zone and the carrier recovery channel, and a drain pipe for discharging the carrier is arranged at the bottom of the carrier recovery channel; the reduction reaction chamber comprises a reduction reaction outer shell, a reduction reaction inner shell, a porous water supplementing plate and a porous bottom plate, wherein the bottom plate is arranged on the inner wall of the reduction reaction outer shell, the bottom of the reduction reaction inner shell is arranged on the bottom plate, the water supplementing plate is arranged on the inner wall of the reduction reaction inner shell and is close to the top of the reduction reaction inner shell, and the water inlet interface is arranged on the reduction reaction inner shell and is positioned above the water supplementing plate; the reduction reaction outer shell is positioned at the outer side of the reduction reaction inner shell, the bottom of the reduction reaction outer shell is arranged on the sealing partition plate, the top of the reduction reaction outer shell is communicated with the upper end of the flow guide pipe, the bottom plate, the reduction reaction outer shell and the sealing partition plate form the sedimentation chamber, the reduction reaction inner shell, the water supplementing plate and the bottom plate form the reduction reaction zone, and the forced flow guide zone is formed between the reduction reaction inner shell and the reduction reaction outer shell;
The oxidation reaction chamber comprises an oxidation reaction outer shell, an oxidation reaction inner shell and a forced flow guide barrel, the top of the oxidation reaction outer shell is arranged on the sealing partition plate, the side wall of the oxidation reaction outer shell is provided with the water outlet port and the air outlet, and the bottom of the oxidation reaction outer shell is provided with the sewage discharge pipe; the top of the forced flow guiding barrel is arranged on the sealing partition plate and is positioned on the inner side of the oxidation reaction outer shell, the oxidation reaction inner shell is positioned in the forced flow guiding barrel, the top of the forced flow guiding barrel is connected with the forced flow guiding barrel, and the vortex lifter is arranged at the bottom of the forced flow guiding barrel; the oxidation reaction inner shell is internally provided with the oxidation reaction zone and the semi-suspension oxidation zone, the suspension oxidation zone is formed between the oxidation reaction inner shell and the forced flow guide barrel, the precipitation separation zone is formed between the forced flow guide barrel and the oxidation reaction outer shell, and the carrier recovery channel is formed between the oxidation reaction inner shell and the oxidation reaction outer shell;
The sewage is discharged to the water supplementing plate through the water inlet interface, the sewage flows into the reduction reaction zone after being uniformly distributed by the water supplementing plate, is reduced and filtered to the sedimentation chamber through the bottom plate for sedimentation after catalytic reduction reaction in the reduction reaction zone, harmful particulate matters in the sewage are sedimentated in the sedimentation chamber, the sedimentated sewage enters the forced diversion zone and is discharged into the oxidation reaction chamber through the diversion pipe, the sewage enters the oxidation reaction zone for a first oxidation reaction, the first oxidation reaction is mainly oxidative decomposition, most of chemical oxygen demand, ammonia nitrogen and virus bacteria in the water body are decomposed into gas and water under the action of the excited strong oxidant, the water and the carrier slowly rise to the semi-suspension oxidation zone for a second oxidation reaction under the action of the vortex lifter, overflows to the suspension oxidation zone through the upper opening of the oxidation reaction inner shell, slowly descends along with the carrier in the suspension oxidation zone due to the action of gravity, enters the sedimentation separation zone through the bottom of the forced diversion barrel, and the carrier is deposited to the carrier recovery channel for recycling in the carrier recovery bucket; the water body entering the precipitation separation area rises in a countercurrent way, under the action of the three-phase separator, suspended particle carriers and inorganic salt substances participating in phosphate radical complexation in the water body generate phosphate substances which are blocked and deposited and separated from the water body, the phosphate substances enter a carrier collection hopper from a carrier recovery channel, the phosphate substances are deposited at the bottom of the carrier collection hopper and are discharged through a drain pipe, clean water is discharged from a water outlet, and gas decomposed by organic pollutants participating in oxidation reaction is discharged from a safety exhaust port; the upper part of the flow guide pipe is positioned in the reduction reaction zone, and the lower part of the flow guide pipe is positioned in the oxidation reaction zone and the semi-suspension oxidation zone.
2. A method for treating sewage in a moving bed oxidation reactor according to claim 1, wherein: the central shaft of the draft tube, the reduction reaction inner shell, the reduction reaction outer shell, the oxidation reaction inner shell and the central shaft of the forced draft tube are overlapped.
3. A method for treating sewage in a moving bed oxidation reactor according to any one of claims 1 to 2, wherein: the upper end of the honeycomb duct is provided with a water collecting bucket, and the water collecting bucket is communicated with the forced flow guiding area through a plurality of collecting pipes.
4. A method for treating sewage in a moving bed oxidation reactor according to any one of claims 1 to 2, wherein: the inner diameter of the carrier recovery channel is smaller than the inner diameter of the precipitation separation zone and the suspension oxidation inner diameter.
5. A method for treating sewage in a moving bed oxidation reactor according to any one of claims 1 to 2, wherein: the aperture of the water supplementing plate is 5-10mm, and the aperture of the bottom plate is 5-10mm.
6. A method for treating sewage in a moving bed oxidation reactor according to any one of claims 1 to 2, wherein: the moving bed oxidation reactor further comprises a backwash water connecting pipe, and the backwash water connecting pipe part penetrates through the reduction reaction outer shell and the reduction reaction inner shell and then is positioned in the reduction reaction zone and above the bottom plate.
7. A sewage treatment method of a moving bed oxidation reactor according to claim 6, wherein: and a three-phase separator is arranged in the precipitation separation zone.
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