CN219709323U - Concentrated water recovery system of nitrogen and phosphorus wastewater treatment system - Google Patents
Concentrated water recovery system of nitrogen and phosphorus wastewater treatment system Download PDFInfo
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- CN219709323U CN219709323U CN202321106834.1U CN202321106834U CN219709323U CN 219709323 U CN219709323 U CN 219709323U CN 202321106834 U CN202321106834 U CN 202321106834U CN 219709323 U CN219709323 U CN 219709323U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 100
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 23
- 239000011574 phosphorus Substances 0.000 title claims abstract description 23
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 16
- 238000011084 recovery Methods 0.000 title claims abstract description 15
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 13
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 25
- 238000001704 evaporation Methods 0.000 claims description 68
- 230000008020 evaporation Effects 0.000 claims description 68
- 230000000694 effects Effects 0.000 claims description 35
- 238000000108 ultra-filtration Methods 0.000 claims description 27
- 239000002351 wastewater Substances 0.000 claims description 22
- 239000003814 drug Substances 0.000 claims description 17
- 230000005494 condensation Effects 0.000 claims description 11
- 238000009833 condensation Methods 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 238000011001 backwashing Methods 0.000 claims description 8
- 238000004062 sedimentation Methods 0.000 claims description 8
- 239000010802 sludge Substances 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 7
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 238000005485 electric heating Methods 0.000 claims description 4
- 239000002455 scale inhibitor Substances 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- 239000010865 sewage Substances 0.000 description 5
- 229940037003 alum Drugs 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- -1 phosphorus compound Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
Abstract
The utility model discloses a concentrated water recovery system of a nitrogen and phosphorus wastewater treatment system, which is characterized by comprising a secondary reverse osmosis device, wherein the secondary reverse osmosis device comprises a primary first-stage concentrated water tank, a secondary first-stage booster pump, a secondary first-stage high-pressure pump, a secondary first-stage RO device, a secondary first-stage concentrated water tank, a secondary second-stage booster pump, a secondary second-stage high-pressure pump, a secondary second-stage RO device and a secondary second-stage concentrated water tank which are sequentially connected with the primary reverse osmosis device.
Description
Technical Field
The utility model relates to the field of sewage treatment, in particular to a concentrated water recovery system of a nitrogen-phosphorus wastewater treatment system.
Background
Phosphorus is an active element, and exists in three states of phosphorus-containing organic matter, inorganic phosphorus compound and reduced state PH3 instead of in a free state in nature. The phosphorus-containing compounds in sewage can be classified into organic phosphorus and inorganic phosphorus. The morphology of the presence of phosphorus in wastewater depends on the type of wastewater, most commonly phosphates, polyphosphates, and organic phosphorus. Along with the continuous increase of human activities, the pollution of nitrogen and phosphorus in water is serious, and a large amount of wastewater rich in nitrogen and phosphorus is discharged into the natural environment, so that the water environment is damaged, and the industrial production is influenced. Therefore, the phosphorus-containing wastewater can be discharged after reaching the standard after being treated, and various processes for removing phosphorus can be selected, and the processes of physical and chemical dephosphorization, biological dephosphorization treatment and adsorption method and the combined use of physical and chemical dephosphorization and biological dephosphorization treatment are generally adopted. In the existing nitrogen and phosphorus wastewater treatment link, after wastewater passes through a first-stage reverse osmosis treatment device, residual concentrated water cannot be effectively utilized, so that a set of concentrated water recovery system is required to be designed for utilizing the concentrated water, and the quality of sewage treatment is improved.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the following scheme:
the utility model provides a dense water recovery system of nitrogen phosphorus effluent disposal system, includes waste water equalizing basin, one-level reaction tank, sedimentation tank, air supporting pond, active carbon biological filter, sand filter, cartridge filter, ultrafiltration device, ultrafiltration water tank, one-level reverse osmosis unit, clean water tank, including second grade reverse osmosis unit, second grade reverse osmosis unit includes the one-level one-section strong water tank that connects gradually with one-level reverse osmosis unit, second grade one-section booster pump, second grade one-section high pressure pump, second grade one-section RO device, second grade one-section strong water tank, second grade two-section booster pump, second grade two-section high pressure pump, second grade two-section RO device and second grade two-section strong water tank, second grade two-section strong water tank is connected with the three-way evaporator through the strong water pump.
Wherein RO is reverse osmosis.
Further preferred technical scheme has, the triple effect evaporator includes the preheating cabinet that connects gradually through the pipeline, first effect evaporation group, second effect evaporation group, triple effect evaporation group and condensation chamber, first effect evaporation group, second effect evaporation group and triple effect evaporation group all include heat exchange chamber, evaporation chamber and concentrate room, be connected through the circulating pipe between heat exchange chamber and the evaporation chamber, the concentrate room below passes through the pipe connection concentrate room, the concentrate room passes through the circulating pump and is connected with the heat exchange chamber, heat exchange chamber one side is equipped with feed liquor pipe and intake pipe, the top of evaporation chamber is equipped with the outlet duct, the condensation chamber is equipped with condensation drain pipe and vacuum pump, the outlet duct of first effect evaporation group links to each other with the intake pipe of second effect evaporation group, the outlet duct of second effect evaporation group links to each other with the intake pipe of triple effect evaporation group, the concentrate room of second effect evaporation group links to each other with the intake pipe of triple effect evaporation group through the balance pipe, the outlet duct of triple effect evaporation group links to each other with the triple effect evaporation group, the triple effect evaporation group's outlet duct links to each other with the concentrate pond.
The further preferable technical scheme is that an electric heating pipe is arranged in the preheating box, a feeding pipe is arranged on one side of the preheating box, a discharging pipe is arranged on the other side of the preheating box, and the discharging pipe is connected with a liquid inlet pipe of the first-effect evaporation group.
Further preferable technical scheme is that the sedimentation tank and the air floatation tank are connected to a sludge tank, and the sludge tank is connected with a plate-and-frame filter press through a sludge pump.
The further preferable technical scheme is that a backwashing device is arranged on the sand filter, the ultrafiltration device and the ultrafiltration water tank, the backwashing device comprises a backwashing pump and a backwashing water tank, and backwash water outlets on the sand filter, the ultrafiltration device and the ultrafiltration water tank are respectively connected to the regulating tank through pipelines.
The further preferable technical scheme is that a scale inhibitor adding device is arranged between the second-stage first-stage booster pump and the second-stage first-stage high-pressure pump and between the second-stage booster pump and the second-stage high-pressure pump.
Further preferable technical scheme is that ultrafiltration device, second grade one section RO device, second grade two section RO device all are equipped with medicine and wash the device, medicine washes the device and includes the medicine that connects gradually washes the case, medicine washes pump and medicine and washes the filter.
Compared with the prior art, the utility model has the beneficial effects that: the utility model processes the concentrated water in the first-stage reverse osmosis device again by arranging the second-stage reverse osmosis device, then sends the processed concentrated water to the triple-effect evaporator for evaporation and concentration, and the steam evaporated in the treatment process of the triple-effect evaporator flows back to the nitrogen-phosphorus regulating tank after condensation, thereby improving the sewage treatment effect, saving resources, ensuring more complete wastewater treatment and improving the wastewater treatment effect by arranging the two-stage second-stage RO device; meanwhile, by arranging the preheating chamber, the temperature of the concentrated water is raised in advance before the concentrated water contacts the triple-effect evaporator, so that the temperature rise time in the evaporator is shortened when the concentrated water enters the triple-effect evaporator, and the operation efficiency of the triple-effect evaporator is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a process flow diagram of the present utility model;
FIG. 3 is a schematic view of a three-effect evaporator according to the present utility model;
in the figure: 1. a first-stage one-stage concentrated water tank; 2. a second stage first stage booster pump; 3. a second stage, first stage high pressure pump; 4. a second-stage first-stage RO device; 5. a second-stage first-stage concentrated water tank; 6. a second stage two-stage booster pump; 7. a two-stage, high pressure pump; 8. a second-stage two-stage RO device; 9. a second-stage two-stage concentrate tank; 10. a concentrate pump; 11. a scale inhibitor adding device; 12. a medicine washing box; 13. a drug washing pump; 14. washing the filter with the medicine; 15. a preheating box; 16. a feed pipe; 17. a discharge pipe; 18. an air inlet pipe; 19. a heat exchange chamber; 20. an evaporation chamber; 21. a circulation pipe; 22. a circulation pump; 23. a concentrate chamber; 24. an air outlet pipe; 25. a balance tube; 26. a condensing chamber; 27. a condensate outlet pipe; 28. an electric heating tube; A. to the ultrafiltration tank.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Example 1
As shown in fig. 1 to 3, a concentrated water recovery system of a nitrogen-phosphorus wastewater treatment system comprises a wastewater regulating tank, a primary reaction tank, a sedimentation tank, an air floatation tank, an activated carbon biological filter, a sand filter, a cartridge filter, an ultrafiltration device, an ultrafiltration water tank, a primary reverse osmosis device and a clear water tank, wherein the concentrated water recovery system further comprises a secondary reverse osmosis device, the secondary reverse osmosis device comprises a primary first-stage concentrated water tank 1, a secondary first-stage booster pump 2, a secondary first-stage high-pressure pump 3, a secondary first-stage RO device 4, a secondary first-stage concentrated water tank 5, a secondary second-stage booster pump 6, a secondary second-stage high-pressure pump 7, a secondary second-stage RO device 8 and a secondary second-stage concentrated water tank 9 which are sequentially connected with the primary reverse osmosis device, and the secondary second-stage concentrated water tank 9 is connected with a three-effect evaporator through a concentrated water pump 10.
Specifically, the triple effect evaporator includes the preheating tank 15 that connects gradually through the pipeline, first effect evaporation group, second effect evaporation group, triple effect evaporation group and condensation chamber 26, first effect evaporation group, second effect evaporation group and triple effect evaporation group all include heat transfer chamber 19, evaporation chamber 20 and concentrate room 23, be connected through circulating pipe 21 between heat transfer chamber 19 and the evaporation chamber 20, evaporation chamber 20 below is through pipe connection concentrate room 23, concentrate room 23 is connected with heat transfer chamber 19 through circulating pump 22, heat transfer chamber 19 one side is equipped with feed pipe and intake pipe 18, the top of evaporation chamber 20 is equipped with outlet duct 24, condensation chamber 26 is equipped with condensate drain pipe 27 and vacuum pump 29, outlet duct 24 and the intake pipe of triple effect evaporation group link to each other, the concentrate room 23 of triple effect evaporation group links to each other with the feed pipe of triple effect evaporation group through balance pipe 25, the outlet duct and the triple effect evaporation group links to each other with the condensation chamber, the triple effect evaporation group's outlet duct is equipped with the preheating tank 15, the opposite side is equipped with the feed pipe 16, the specific feed pipe that is equipped with the feed pipe of triple effect evaporation group, the feed pipe is equipped with the preheating tank 17.
Specifically, sedimentation tank and air supporting pond are connected to the mud pit, and the mud pit passes through the sludge pump to be connected with plate and frame filter press, is provided with backwash device on sand filter, ultrafiltration device, the ultrafiltration water tank, and backwash device includes backwash pump and backwash water tank, and backwash water delivery outlet on sand filter, ultrafiltration device, the ultrafiltration water tank is connected to the equalizing basin through the pipeline respectively.
Specifically, the second-stage first-stage RO device is equipped with 3 reverse osmosis units, and the second-stage RO device is equipped with 1 reverse osmosis unit, between second-stage first-stage booster pump 2 and second-stage first-stage high-pressure pump 3, all be equipped with the scale inhibitor between second-stage booster pump 6 and the second-stage high-pressure pump 7 and add device 11, ultrafiltration device, second-stage first-stage RO device 4, second-stage RO device 8 all are equipped with the medicine and wash the device, and the medicine is washed the device and is washed pump 13 and medicine and wash filter 14 including the medicine that connects gradually wash box 12.
The process flow of the utility model is as follows: the nitrogen and phosphorus wastewater enters a wastewater regulating tank, is lifted to a first-stage reaction tank by a raw water lifting pump to react, naOH, PAC and PAM are added into the first-stage reaction tank, the PH value is controlled to be about 11, metal ions and phosphate ions in the wastewater form refractory substances under alkaline conditions, large-particle alum flowers are formed under the action of PAC and PAM, the large-particle alum flowers enter a sedimentation tank in a self-flowing manner, mud-water separation is carried out in the sedimentation tank, supernatant fluid enters an air floatation tank in a second-stage reverse PAC and PAM in a self-flowing manner, the pH value is controlled to be about 7-8, fine suspended matters in the wastewater are condensed into alum flowers under the action of PAC and PAM, the alum flowers and dissolved air water are combined into scum with a specific weight lighter than water, and the scum is separated from water through a scum scraper after floating up and is sent to a sludge storage tank; after separation, clear water is lifted to an activated carbon biological filter through an intermediate pump, microorganisms such as bacteria attach to the irregular outer surface of the granular activated carbon to form a biological film, biodegradable organic matters in the water can be removed, and fine particles, suspended matters, colloid and other impurities in the water can be trapped and adsorbed. The effluent enters a sand filter to intercept fine particles, suspended matters, colloid and other impurities in the water; the effluent enters two cartridge filters to remove micro-particle suspended matters in the water; after the water is discharged, the water enters an ultrafiltration device, bacteria, viruses, colloid, macromolecules and other particles in the water are trapped, and the water and low molecular weight solutes enter an ultrafiltration water tank through the ultrafiltration device; adding scale inhibiting and reducing agents into the discharged water after being lifted by the primary booster pump, lifting the discharged water to the primary reverse osmosis device by the primary high-pressure pump, automatically flowing permeate (namely clear water) after intercepting various organic matters and salts into the clear water tank, and lifting the permeate to a recycling water supply point by the water supply pump.
Concentrated water generated by the primary reverse osmosis device enters the primary first-stage concentrated water tank 1, is lifted to the secondary first-stage RO device 4 by the secondary first-stage booster pump 2 and the secondary first-stage high-pressure pump 3 for treatment, the treated clean water is conveyed to the ultrafiltration water production tank, the concentrated water enters the secondary first-stage concentrated water tank 5, and enters the secondary second-stage RO device 8 through the secondary second-stage booster pump 6 and the secondary second-stage high-pressure pump 7 again, the treated clean water is conveyed to the ultrafiltration water production tank, and the concentrated wastewater enters the triple-effect evaporator for evaporation concentration through the lifting pump 10.
The waste water is lifted into a preheating box 15 by a lifting pump 10, is heated by an electric heating pipe 18 in the preheating box 15, enters a heat exchange chamber 19 from a liquid inlet of a first-effect evaporation group after being heated, is heated by external steam of an air inlet pipe 18, enters an evaporation chamber 20 after being heated in the heat exchange chamber 19 due to the fact that the pressure of the heat exchange chamber 19 is increased, the pressure of the waste water is rapidly reduced to cause flash evaporation or rapid boiling of part of the waste water, steam after the evaporation of the waste water enters a second-effect evaporation group to serve as power steam to heat the second-effect evaporation group, one part of non-evaporated waste water is pumped into the heat exchange chamber 19 again by a circulating pump, and the other part of non-evaporated waste water enters the second-effect evaporation group by a balance pipe 25; the two-effect evaporation group is heated by vapor generated by the one-effect evaporation group, and other working principles are consistent with those of the one-effect evaporation group; the three-effect evaporation group heats the waste water vapor generated by the two-effect evaporation group to generate vapor and concentrated solution, the concentrated solution enters a concentrated water tank and is subjected to external treatment, the vapor automatically enters a condensing chamber 26 due to the negative pressure generated by a vacuum pump 29, and the waste water vapor is quickly converted into condensed water under the cooling of circulating cooling water and is discharged through a condensing liquid outlet pipe 27 and recycled to an external waste water regulating tank.
The utility model processes the concentrated water in the first-stage reverse osmosis device again by arranging the second-stage reverse osmosis device, then sends the processed concentrated water to the triple-effect evaporator for evaporation and concentration, and the steam evaporated in the treatment process of the triple-effect evaporator flows back to the nitrogen-phosphorus regulating tank after condensation, thereby improving the sewage treatment effect, saving resources, ensuring more complete wastewater treatment and improving the wastewater treatment effect by arranging the two-stage second-stage RO device; meanwhile, by arranging the preheating chamber, the temperature of the concentrated water is raised in advance before the concentrated water contacts the triple-effect evaporator, so that the temperature rise time in the evaporator is shortened when the concentrated water enters the triple-effect evaporator, and the operation efficiency of the triple-effect evaporator is improved.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The utility model provides a dense water recovery system of nitrogen phosphorus effluent disposal system, includes waste water equalizing basin, one-level reaction tank, sedimentation tank, air supporting pond, active carbon biological filter, sand filter, cartridge filter, ultrafiltration device, ultrafiltration water tank, one-level reverse osmosis unit, clean water tank that connects gradually, its characterized in that includes second grade reverse osmosis unit, second grade reverse osmosis unit includes the one-level one-section dense water tank that connects gradually with one-level reverse osmosis unit, second grade one-level booster pump, second grade one-level high pressure pump, second grade one-level RO device, second grade one-level dense water tank, second grade two-level booster pump, second grade two-level high pressure pump, second grade two-level RO device and second grade two-level dense water tank, second grade two-level dense water tank is connected with the triple effect evaporimeter through the dense water pump.
2. The concentrated water recovery system of a nitrogen and phosphorus wastewater treatment system according to claim 1, wherein the triple-effect evaporator comprises a preheating tank, a first-effect evaporation group, a second-effect evaporation group, a triple-effect evaporation group and a condensation chamber which are sequentially connected through pipelines, the first-effect evaporation group, the second-effect evaporation group and the triple-effect evaporation group comprise heat exchange chambers, the evaporation chambers and the concentrated solution chambers are connected through circulating pipes, the concentrated solution chambers are connected with the heat exchange chambers through pipelines below the evaporation chambers, the concentrated solution chambers are connected with the heat exchange chambers through circulating pumps, one side of the heat exchange chambers is provided with a liquid inlet pipe and an air inlet pipe, the top of the evaporation chambers is provided with an air outlet pipe, the condensation chamber is provided with a condensation liquid outlet pipe and a vacuum pump, the air outlet pipe of the first-effect evaporation group is connected with the air inlet pipe of the second-effect evaporation group, the air outlet pipe of the second-effect evaporation group is connected with the air inlet pipe of the triple-effect evaporation group, the concentrated solution chambers of the second-effect evaporation group are connected with the triple-effect evaporation group through balance pipes, and the concentrated solution chambers are connected with the triple-effect evaporation groups.
3. The concentrated water recovery system of a nitrogen and phosphorus wastewater treatment system according to claim 2, wherein an electric heating pipe is arranged in the preheating box, a feeding pipe is arranged on one side of the preheating box, a discharging pipe is arranged on the other side of the preheating box, and the discharging pipe is connected with the liquid inlet pipe of the first-effect evaporation group.
4. A concentrated water recovery system for a nitrogen and phosphorus wastewater treatment system according to claim 1, wherein said sedimentation tank and air floatation tank are connected to a sludge tank, said sludge tank being connected to a plate and frame filter press by a sludge pump.
5. The concentrated water recovery system of a nitrogen and phosphorus wastewater treatment system according to claim 1, wherein a backwashing device is arranged on the sand filter, the ultrafiltration device and the ultrafiltration water tank, the backwashing device comprises a backwashing pump and a backwashing water tank, and backwash water outlets on the sand filter, the ultrafiltration device and the ultrafiltration water tank are respectively connected to the regulating tank through pipelines.
6. The concentrated water recovery system of a nitrogen and phosphorus wastewater treatment system according to claim 1, wherein a scale inhibitor adding device is arranged between the secondary first-stage booster pump and the secondary first-stage high-pressure pump and between the secondary second-stage booster pump and the secondary second-stage high-pressure pump.
7. The concentrated water recovery system of a nitrogen and phosphorus wastewater treatment system according to claim 1, wherein the ultrafiltration device, the secondary primary RO device and the secondary RO device are respectively provided with a medicine washing device, and the medicine washing device comprises a medicine washing box, a medicine washing pump and a medicine washing filter which are sequentially connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321106834.1U CN219709323U (en) | 2023-05-10 | 2023-05-10 | Concentrated water recovery system of nitrogen and phosphorus wastewater treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321106834.1U CN219709323U (en) | 2023-05-10 | 2023-05-10 | Concentrated water recovery system of nitrogen and phosphorus wastewater treatment system |
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| CN202321106834.1U Active CN219709323U (en) | 2023-05-10 | 2023-05-10 | Concentrated water recovery system of nitrogen and phosphorus wastewater treatment system |
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| Country | Link |
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| CN (1) | CN219709323U (en) |
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- 2023-05-10 CN CN202321106834.1U patent/CN219709323U/en active Active
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