CN220926494U - Advanced treatment device for white spirit wastewater by MBBR combined advanced oxidation - Google Patents
Advanced treatment device for white spirit wastewater by MBBR combined advanced oxidation Download PDFInfo
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- CN220926494U CN220926494U CN202322388221.8U CN202322388221U CN220926494U CN 220926494 U CN220926494 U CN 220926494U CN 202322388221 U CN202322388221 U CN 202322388221U CN 220926494 U CN220926494 U CN 220926494U
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- 239000002351 wastewater Substances 0.000 title claims abstract description 25
- 230000003647 oxidation Effects 0.000 title claims abstract description 21
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 21
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 title claims 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 83
- 238000006243 chemical reaction Methods 0.000 claims abstract description 59
- 239000012528 membrane Substances 0.000 claims abstract description 58
- 238000010992 reflux Methods 0.000 claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 230000001546 nitrifying effect Effects 0.000 claims abstract description 32
- 238000001556 precipitation Methods 0.000 claims abstract description 14
- 239000008213 purified water Substances 0.000 claims abstract description 5
- 238000004062 sedimentation Methods 0.000 claims description 31
- 238000005273 aeration Methods 0.000 claims description 29
- 239000000945 filler Substances 0.000 claims description 27
- 239000010802 sludge Substances 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 7
- 238000011049 filling Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 8
- 238000004065 wastewater treatment Methods 0.000 abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 description 12
- 239000013049 sediment Substances 0.000 description 10
- 239000010865 sewage Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 6
- 239000011575 calcium Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000005243 fluidization Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 3
- 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 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910001425 magnesium ion Inorganic materials 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 238000013124 brewing process Methods 0.000 description 1
- 238000012668 chain scission Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a device for advanced treatment of white spirit wastewater by MBBR (moving bed biofilm reactor) combined advanced oxidation, which belongs to the field of wastewater treatment and comprises a water inlet, a pure membrane anoxic zone, a pure membrane aerobic zone, a nitrifying liquid reflux zone, a high-density precipitation zone, an ozone reaction effluent reflux zone and a purified water outlet. The utility model can carry out advanced treatment on the white spirit wastewater after the secondary biochemical treatment, ensures that the concentration of COD, ammonia nitrogen and total nitrogen of the final effluent meets the relevant emission standard, and can be applied to the new construction and the reconstruction of the existing white spirit wastewater treatment facilities.
Description
Technical Field
The utility model relates to a device for advanced treatment of white spirit wastewater by MBBR combined advanced oxidation, and belongs to the field of wastewater treatment.
Background
The cleaning wastewater and the distilled wastewater in the brewing process are main sources of white spirit wastewater, and the COD, ammonia nitrogen, TP, total nitrogen and Suspended Solids (SS) in the wastewater are high in concentration, so that the wastewater is high-concentration organic wastewater which is difficult to treat. At present, the biochemical treatment technology of the white spirit brewing wastewater at home and abroad mainly adopts an anaerobic reactor to remove most of high-concentration organic matters and recycle biogas, then biogas slurry generated by the anaerobic reactor is subjected to traditional A/A/O biochemical treatment and secondary biochemical treatment in a secondary sedimentation tank, COD (chemical oxygen demand) in effluent after the secondary biochemical treatment is generally above 100mg/L, and indexes of effluent ammonia nitrogen and TN also cannot stably meet the higher emission requirements of first-level A or local requirements of pollutant emission standards of urban sewage treatment plants (GB 18918-2002).
In order to enable the treated white spirit wastewater to meet the national discharge requirements, the sewage after the secondary biochemical treatment and the secondary sedimentation tank sedimentation treatment is required to be further subjected to advanced treatment; currently, advanced treatment of many white spirit manufacturers selects a process route of ozone advanced oxidation+biological aerated filter (BAF) +filtration; the process route has the defect that on one hand, the concentration of Suspended Substances (SS) entering the ozone advanced oxidation pond from the secondary sedimentation pond is still always maintained above 20mg/L, so that the oxidation efficiency in the ozone advanced oxidation pond is reduced due to adverse interference of the SS; on the other hand, the strong oxidant of ozone can oxidize and remove the biodegradable and non-biodegradable COD in the inflow water, so that the BAF filler is difficult to film because of the lack of nutrient substances in the subsequent BAF pool, and the removal effect on the COD and ammonia nitrogen is poor; thirdly, in order to remove total nitrogen by denitrification, two groups of BAF facilities which are connected in series and are complicated by denitrification and nitrification are also needed, so that the construction cost and the operation difficulty are improved; fourth, because the hardness of calcium and magnesium in the effluent of the two sedimentation tanks is still higher, aeration micropores on the ozone aeration disc can be blocked by sediments formed by calcium and magnesium ions, and high-hardness sewage can also cause hardening of fillers in the BAF tank, so that the normal operation of BAF is affected.
The MBBR (moving bed biofilm reactor) process is a novel efficient sewage treatment biofilm reactor, and can operate in a pure membrane MBBR reactor mode, wherein the pure membrane MBBR reactor comprises a suspended filler, an aeration and water outlet screen system, no return sludge from a subsequent precipitation zone exists in the pure membrane MBBR reactor, the concentration of MLSS (suspended solids) for suspension growth is very low, and for sewage with relatively low COD (chemical oxygen demand) concentration, the biological membrane can be grown on the suspended filler of the MBBR, the membrane is easy to hang, the biochemical effect of removing COD, ammonia nitrogen and TN also mainly occurs on the biological membrane of the suspended filler, and the aged biological membrane is automatically subjected to stripping due to fluidization of the suspended filler; in addition, because the MBBR suspended filler is in a high-speed fluidization state, the MBBR process tolerates sewage with hardness in a certain range, and sediment formed by calcium and magnesium ions with concentration in a certain range can not cause deposition scaling on the filler.
In view of the characteristics of the quality of the white spirit wastewater, in order to overcome the defects of the existing advanced treatment process route, a proper advanced treatment device is required to be selected.
Disclosure of Invention
The utility model aims to overcome the defects of the existing white spirit wastewater advanced treatment technology, and provides a device for advanced treatment of white spirit wastewater by MBBR combined advanced oxidation, which can be applied to new construction and improvement of the existing white spirit wastewater treatment facilities.
The technical scheme of the utility model is as follows:
An advanced treatment device for white spirit wastewater by MBBR combined advanced oxidation comprises a water inlet, a pure membrane anoxic zone, a pure membrane aerobic zone, a nitrifying liquid reflux zone, a high-density precipitation zone, an ozone reaction effluent reflux zone and a purified water outlet, wherein the pure membrane anoxic zone is communicated with the pure membrane aerobic zone through a flat perforated screen; the pure membrane aerobic zone is communicated with the nitrifying liquid reflux zone through a water outlet roller screen; the nitrifying liquid reflux zone is communicated with a water inlet of the high-density sedimentation zone through a biochemical treatment water outlet and a biochemical treatment water outlet pipe in sequence; the high-density sedimentation zone is communicated with the water inlet of the ozone reaction zone sequentially through the water outlet of the high-density sedimentation zone and the water outlet pipe of the high-density sedimentation zone; the ozone reaction zone is communicated with an ozone reaction water outlet reflux zone through an ozone reaction zone water outlet.
Furthermore, a pure membrane anoxic zone suspended filler and a pure membrane anoxic zone stirrer are arranged in the pure membrane anoxic zone.
Further, an aeration pipe assembly, a pure membrane aerobic zone suspension filling and water outlet roller screen mesh are arranged in the pure membrane aerobic zone, and the aeration pipe assembly is communicated with an aeration blower through an aeration air supply pipe.
Further, a nitrifying liquid internal reflux submersible pump assembly is arranged in the nitrifying liquid reflux zone, and the nitrifying liquid internal reflux submersible pump assembly is communicated with a nitrifying liquid reflux inlet through a nitrifying liquid reflux pipe.
Further, a high-density sediment sludge pump is arranged in the high-density sediment area to discharge the surplus sludge generated in the device out of the device.
Further, an ozone aeration assembly is arranged in the ozone reaction zone, and the ozone aeration assembly is communicated with an ozone preparation assembly through an ozone supply pipe.
Further, an ozone reaction water outlet backflow submersible pump assembly is arranged in the ozone reaction water outlet backflow zone, and the ozone reaction water outlet backflow submersible pump assembly is communicated with an ozone reaction water outlet backflow inlet through an ozone reaction water outlet backflow pipe.
The utility model has the beneficial effects that:
1) Under the pushing of a pure membrane anoxic zone stirrer, biofilm denitrifying bacteria growing on the filler can denitrify and remove nitrate nitrogen in nitrified liquid from the reflux of a pure membrane aerobic zone by utilizing part of carbon sources in water, and if the water inlet carbon sources are insufficient, the carbon sources can be additionally added to improve the total nitrogen removing efficiency of denitrification. The suspended filler in the pure membrane aerobic zone in the pure membrane anoxic zone can be fully fluidized through the aeration pipe assembly at the bottom of the pure membrane anoxic zone, and nitrifying bacteria biological films can be grown on the filler under the condition of lower COD of inflow water.
2) The pure membrane anoxic zone and the pure membrane aerobic zone of the MBBR biochemical process have no sediment reflux sludge from the subsequent treatment zone, the concentration of MLSS for suspension growth is very low, and for sewage with relatively low COD concentration, biological membranes can be easily grown on the MBBR suspended filler, biochemical actions for removing COD, ammonia nitrogen and TN also mainly occur on the suspended filler biological membranes, and the aged biological membranes can be automatically de-molded due to fluidization of the suspended filler without any additional back flushing process; in addition, because the MBBR suspended filler is in a high-speed fluidization state, the MBBR process tolerates sewage with hardness concentration in a certain range, and precipitates formed by calcium and magnesium ions with hardness concentration in a certain range cannot be deposited on the surface of the suspended filler.
3) Because the suspended MLSS concentration in the pure membrane anoxic zone and the pure membrane aerobic zone is very low, the falling biological membrane and partial SS suspended matters brought by the water inlet directly enter the high-density precipitation zone, and the functions of the high-density precipitation zone are not influenced or the operation is difficult because of the too high SS of the water inlet. Flocculant and coagulant aid are additionally added in a conventional high-density sedimentation zone to improve the sedimentation performance of the high-density sedimentation zone, a mud scraper is also arranged in the high-density sedimentation zone, and part of formed bottom mud flows back to the front area of the mud, so that the mud concentration of flocculation reaction in the high-density sedimentation zone is ensured; in addition, the whole device only carries out the discharge of the surplus sludge through the high-density sediment sludge pump arranged in the high-density sediment area, the sludge discharge concentration is high, and the effluent SS concentration in the high-density sediment area is ensured to reach the standard.
4) If the hardness of calcium and magnesium in the inflow water is required to be further removed, the high-density precipitation zone in the device not only realizes solid-liquid separation of muddy water, but also achieves the aim of removing most of the hardness of calcium and magnesium in the large inflow water by adding a precipitation reagent into the device, thereby avoiding the adverse effect of higher SS concentration and hardness on the subsequent ozone reaction zone.
5) Degrading part of organic matters which are difficult to be biodegraded into biodegradable COD (chemical oxygen demand) or/and ammonia nitrogen through the advanced oxidation of the ozone reaction zone; in actual operation, if detecting that the chain scission effect of the advanced ozone oxidation on complex organic matters leads to the exceeding of COD or ammonia nitrogen of final effluent, the ozone reaction effluent backflow submersible pump assembly can be arranged in the ozone reaction effluent backflow zone of the device, so that partial final effluent backflow to the pure membrane anoxic zone is realized, and the phenomenon that the COD or ammonia nitrogen exceeds the standard again due to the effect of ozone oxidation of the final effluent quality is avoided.
Drawings
Fig. 1 is a schematic plan view of the present utility model.
Wherein: 1. the water inlet, 2, a nitrifying liquid backflow inlet, 3, an ozone reaction water backflow inlet, 4, a pure film anoxic zone, 5, a pure film anoxic zone suspension filler, 6, a flat perforated screen, 7, an aeration pipe component, 8, a pure film aerobic zone, 9, a pure film aerobic zone suspension filler, 10, a water outlet roller screen, 11, a nitrifying liquid backflow zone, 12, a biochemical treatment water outlet pipe, 13, a biochemical treatment water outlet pipe, 14, a high-density precipitation zone water inlet, 15, a high-density precipitation zone, 16, a high-density precipitation zone water outlet, 17, a high-density precipitation zone water outlet pipe, 18, an ozone reaction zone water inlet, 19, an ozone reaction zone, 20, an ozone preparation component, 21, an ozone reaction water backflow zone, 22, a pure water outlet, 23, a nitrifying liquid backflow pipe, 24, a pure film anoxic zone stirrer, 25, an ozone reaction water backflow pipe, 26, an aeration air supply pipe, 27, an aeration blower, 28, a nitrifying liquid internal backflow submersible pump component, 29, a high-density precipitation water outlet pump, 30, an ozone reaction water outlet pipe, 31, an ozone component, 32, an ozone reaction zone water outlet, 33, an ozone reaction zone water outlet, an ozone backflow reflux component, 33, an ozone reaction water backflow component, and an ozone reaction water outlet.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1.
An advanced treatment device for white spirit wastewater by MBBR combined advanced oxidation comprises a water inlet 1, a pure film anoxic zone 4, a pure film aerobic zone 8, a nitrifying liquid reflux zone 11, a high-density precipitation zone 15, an ozone reaction zone 19, an ozone reaction effluent reflux zone 21 and a pure water outlet 22, wherein the pure film anoxic zone 4 is communicated with the pure film aerobic zone 8 through a flat perforated screen 6; the pure membrane aerobic zone 8 is communicated with the nitrifying liquid reflux zone 11 through a water outlet roller screen 10; the nitrifying liquid reflux zone 11 is communicated with a water inlet 14 of the high-density sedimentation zone through a biochemical treatment water outlet 12 and a biochemical treatment water outlet pipe 13 in sequence; the high-density sedimentation zone 15 is communicated with an ozone reaction zone water inlet 18 through a high-density sedimentation zone water outlet 16 and a high-density sedimentation zone water outlet pipe 17 in sequence; the ozone reaction zone 19 is communicated with the ozone reaction effluent reflux zone 21 through an ozone reaction zone water outlet 32.
Further, a pure membrane anoxic zone suspended filler 5 and a pure membrane anoxic zone stirrer 24 are arranged in the pure membrane anoxic zone 4.
Further, an aeration pipe assembly 7, a pure membrane aerobic zone suspension pad 9 and a water outlet roller screen are arranged in the pure membrane aerobic zone 8, and the aeration pipe assembly 7 is communicated with an aeration blower 27 through an aeration air supply pipe 26.
Further, a nitrifying liquid internal reflux submersible pump assembly 28 is arranged in the nitrifying liquid reflux zone 11, and the nitrifying liquid internal reflux submersible pump assembly 28 is communicated with the nitrifying liquid reflux inlet 2 through a nitrifying liquid reflux pipe 23.
Further, a high-density sediment sludge pump 29 is provided in the high-density sediment zone 15 to discharge surplus sludge generated in the apparatus.
Further, an ozone aeration assembly 31 is disposed in the ozone reaction zone 19, and the ozone aeration assembly 31 is in communication with the ozone generating assembly 20 through an ozone supply pipe 30.
Further, an ozone reaction water outlet reflux submersible pump assembly 33 is arranged in the ozone reaction water outlet reflux zone 21, and the ozone reaction water outlet reflux submersible pump assembly 33 is communicated with the ozone reaction water outlet reflux inlet 3 through an ozone reaction water outlet reflux pipe 25.
The technical scheme of the utility model comprises the following steps:
1) Sewage flows into the pure membrane anoxic zone through the water inlet, suspended filler in the pure membrane anoxic zone is pushed by a pure membrane anoxic zone stirrer, and biological membrane denitrifying bacteria growing on the filler utilize partial carbon sources in the inflow water to denitrify and remove nitrate nitrogen in nitrified liquid from the return of the pure membrane aerobic zone;
2) The mud water after the anoxic reaction flows into a pure membrane aerobic zone through water holes on a flat perforated screen, the suspended filler in the pure membrane aerobic zone is fluidized under the aeration oxygenation and thrust of an aeration pipe assembly, a biological film grows, nitrifying bacteria on the biological film nitrify ammonia nitrogen into nitrate nitrogen, and the mud water after the reaction flows into a nitrifying liquid backflow zone through a water outlet roller screen;
3) Part of nitrified liquid muddy water in the nitrified liquid reflux zone is lifted to a nitrified liquid reflux pipe through a nitrified liquid internal reflux submersible pump assembly, then enters the pure membrane anoxic zone through a nitrified liquid reflux inlet, and the other part of nitrified liquid muddy water flows into the high-density sedimentation zone through a biochemical treatment water outlet, a biochemical treatment water outlet pipe and a water inlet of the high-density sedimentation zone in sequence, so that muddy water separation is realized in the high-density sedimentation zone;
4) The upper clear water in the high-density sedimentation zone flows into the ozone reaction zone through a water outlet of the high-density sedimentation zone, a water outlet pipe of the high-density sedimentation zone and a water inlet of the ozone reaction zone in sequence, ozone generated by the ozone preparation component is provided into the ozone aeration component through the ozone air supply pipe, the introduced ozone and water are mixed and oxidized through the ozone aeration component, and partial COD (chemical oxygen demand) in the water left after front end treatment is subjected to advanced oxidation and removal;
5) The water after the reaction in the ozone reaction zone flows into the ozone reaction water outlet backflow zone through the water outlet of the ozone reaction zone, partial final water outlet backflow to the pure membrane anoxic zone is realized through the ozone reaction water outlet backflow submersible pump assembly, internal backflow is formed, and the final purified water flows out of the device through the purified water outlet.
Example one.
The wastewater treatment project of certain white spirit in Guizhou province is built in 2019, the design scale is 8000 tons/day, a two-stage biochemical treatment process of an anaerobic reactor, an AO biochemical tank and a secondary sedimentation tank is adopted, COD in the water quality of the water is initially designed to be 20000mg/l, BOD is 14000mg/l, ammonia nitrogen is 500mg/l, TN is 700mg/l, TP is 50mg/l, SS is 2000mg/l, the final effluent quality standard is COD is less than or equal to 50mg/l, ammonia nitrogen is less than or equal to 0.5mg/l, TN is less than or equal to 15mg/l, TP is less than or equal to 0.5mg/l, and SS is less than or equal to 10mg/l. The advanced treatment of the project adopts the device technology, wherein the designed pure membrane anoxic zone HRT=2h, the filling rate of the suspended filler is 35 percent, the pure membrane aerobic zone HRT=4h, the filling rate of the suspended filler is 45 percent, the suspended filler is HDPE, the specific gravity is 0.96g/cm < 3 >, the diameter is 25mm, the height is 10mm, the porosity is more than or equal to 90 percent, the bulk density is more than or equal to 98kg/m < 3 >, the effective specific surface area is more than or equal to 500 square meters/m < 3 >, and the effluent adopts an effluent roller screen; after the whole set of advanced treatment device is operated, the quality of the effluent is kept at COD less than or equal to 45mg/L, ammonia nitrogen less than or equal to 0.3mg/L, TN less than or equal to 13mg/L, TP less than or equal to 0.5mg/L and SS less than or equal to 10mg/L, thereby meeting the design emission standard.
In the foregoing, the present invention is only preferred embodiments, and these embodiments are based on different implementations of the overall concept of the present invention, and the scope of the present invention is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention, so the scope of the present invention should be defined by the scope of the claims.
Claims (7)
1. The advanced treatment device for the white spirit wastewater by the MBBR combined advanced oxidation is characterized by comprising a water inlet, a pure membrane anoxic zone, a pure membrane aerobic zone, a nitrifying liquid reflux zone, a high-density precipitation zone, an ozone reaction effluent reflux zone and a purified water outlet, wherein the pure membrane anoxic zone is communicated with the pure membrane aerobic zone through a flat perforated screen; the pure membrane aerobic zone is communicated with the nitrifying liquid reflux zone through a water outlet roller screen; the nitrifying liquid reflux zone is communicated with a water inlet of the high-density sedimentation zone through a biochemical treatment water outlet and a biochemical treatment water outlet pipe in sequence; the high-density sedimentation zone is communicated with the water inlet of the ozone reaction zone sequentially through the water outlet of the high-density sedimentation zone and the water outlet pipe of the high-density sedimentation zone; the ozone reaction zone is communicated with an ozone reaction water outlet reflux zone through an ozone reaction zone water outlet.
2. The advanced treatment device for the white spirit wastewater by the MBBR combined advanced oxidation according to claim 1, wherein a pure membrane anoxic zone suspended filler and a pure membrane anoxic zone stirrer are arranged in the pure membrane anoxic zone.
3. The advanced treatment device for the white spirit wastewater by the MBBR combined advanced oxidation according to claim 1, wherein an aeration pipe assembly, a pure film aerobic zone suspension filling and water outlet roller screen mesh are arranged in the pure film aerobic zone, and the aeration pipe assembly is communicated with an aeration blower through an aeration air supply pipe.
4. The advanced treatment device for the white spirit wastewater by the MBBR combination according to claim 1, wherein a nitrifying liquid internal reflux submersible pump assembly is arranged in the nitrifying liquid reflux zone, and the nitrifying liquid internal reflux submersible pump assembly is communicated with a nitrifying liquid reflux inlet through a nitrifying liquid reflux pipe.
5. The advanced treatment device for white spirit wastewater by MBBR combination advanced oxidation according to claim 1, wherein a high-density sedimentation sludge pump is arranged in the high-density sedimentation zone to discharge surplus sludge generated in the device out of the device.
6. The advanced treatment device for white spirit wastewater by MBBR combined advanced oxidation according to claim 1, wherein an ozone aeration component is arranged in the ozone reaction zone, and the ozone aeration component is communicated with an ozone preparation component through an ozone gas supply pipe.
7. The advanced treatment device for white spirit wastewater by combined advanced oxidation according to claim 1, wherein an ozone reaction water outlet reflux submersible pump assembly is arranged in the ozone reaction water outlet reflux zone, and the ozone reaction water outlet reflux submersible pump assembly is communicated with an ozone reaction water outlet reflux inlet through an ozone reaction water outlet reflux pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322388221.8U CN220926494U (en) | 2023-09-04 | 2023-09-04 | Advanced treatment device for white spirit wastewater by MBBR combined advanced oxidation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322388221.8U CN220926494U (en) | 2023-09-04 | 2023-09-04 | Advanced treatment device for white spirit wastewater by MBBR combined advanced oxidation |
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| CN202322388221.8U Active CN220926494U (en) | 2023-09-04 | 2023-09-04 | Advanced treatment device for white spirit wastewater by MBBR combined advanced oxidation |
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