CN219991359U - Combined wastewater treatment device - Google Patents
Combined wastewater treatment device Download PDFInfo
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- CN219991359U CN219991359U CN202321063637.6U CN202321063637U CN219991359U CN 219991359 U CN219991359 U CN 219991359U CN 202321063637 U CN202321063637 U CN 202321063637U CN 219991359 U CN219991359 U CN 219991359U
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 84
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000002351 wastewater Substances 0.000 claims abstract description 42
- 230000003197 catalytic effect Effects 0.000 claims abstract description 31
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 26
- 230000003647 oxidation Effects 0.000 claims abstract description 25
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 25
- 239000012528 membrane Substances 0.000 claims abstract description 24
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 18
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 12
- 238000004062 sedimentation Methods 0.000 claims description 10
- 238000011010 flushing procedure Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000005273 aeration Methods 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 5
- 230000006378 damage Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 3
- 241000894006 Bacteria Species 0.000 abstract description 2
- 238000011118 depth filtration Methods 0.000 abstract description 2
- 231100000331 toxic Toxicity 0.000 abstract description 2
- 230000002588 toxic effect Effects 0.000 abstract description 2
- 210000001601 blood-air barrier Anatomy 0.000 description 4
- 239000008213 purified water Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 239000010954 inorganic particle Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000011146 organic particle Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model discloses a combined wastewater treatment device, which comprises a pretreatment stage, a membrane treatment stage and a deep treatment stage; the pretreatment stage, the membrane treatment stage and the advanced treatment stage are sequentially connected along the flowing direction of the wastewater through pipelines; the membrane treatment stage comprises ultrafiltration equipment and reverse osmosis equipment, wherein the water outlet end of the ultrafiltration equipment is communicated with the water inlet end of the reverse osmosis equipment through a pipeline, a high-pressure pump is arranged on a communicating pipeline, the concentrated wastewater outlet of the reverse osmosis equipment is communicated with the water inlet end of an energy recovery device through a pipeline, and the water outlet end of the energy recovery device is communicated with the pipeline between the high-pressure pump and the reverse osmosis equipment through a pipeline provided with a booster pump; the advanced treatment stage comprises an ozone catalytic oxidation tower, an MBR pool, a disinfection pool and a water outlet pool. The device eliminates toxic and harmful substances, bacteria and the like in the wastewater through multistage depth filtration, so that the wastewater reaches the standard of re-drinking. The traditional process and the modern process are combined, so that the resource utilization rate is improved, and the aim of saving resources is fulfilled.
Description
Technical Field
The utility model relates to the technical field of wastewater treatment devices, in particular to a combined type wastewater treatment device.
Background
With the development of social economy, the utilization efficiency of water resources is gradually reduced, and the cost for treating wastewater is gradually increased. The domestic wastewater is directly discharged or used for irrigation after being treated, so that the utilization efficiency of water resources is reduced, the cyclic utilization of the water resources is not facilitated, and the efficient use of the water resources is realized. A combined wastewater treatment device is provided.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a combined type wastewater treatment device.
The utility model adopts the following technical scheme to realize the aim:
the combined wastewater treatment device in the technical scheme comprises a pretreatment stage, a membrane treatment stage and a deep treatment stage; the pretreatment stage, the membrane treatment stage and the advanced treatment stage are sequentially connected along the flowing direction of the wastewater through pipelines; the membrane treatment stage comprises ultrafiltration equipment and reverse osmosis equipment, wherein the water outlet end of the ultrafiltration equipment is communicated with the water inlet end of the reverse osmosis equipment through a pipeline, a high-pressure pump is arranged on a communicating pipeline, the concentrated wastewater outlet of the reverse osmosis equipment is communicated with the water inlet end of an energy recovery device through a pipeline, and the water outlet end of the energy recovery device is communicated with the pipeline between the high-pressure pump and the reverse osmosis equipment through a pipeline provided with a booster pump; the advanced treatment stage comprises an ozone catalytic oxidation tower and an MBR pool, wherein the ozone catalytic oxidation tower is communicated with the MBR pool through a pipeline, and the water outlet end of the MBR pool is sequentially connected with a disinfection pool and a water outlet pool through pipelines.
In the above technical scheme, the pretreatment stage comprises a grid, a sedimentation tank and an adjusting tank which are communicated sequentially through a pipeline, and a water outlet of the adjusting tank is communicated with a water inlet of the ultrafiltration device through a pipeline.
In the above technical scheme, the ozone catalytic tower is preferably provided with a catalyst layer, an ozone aeration layer, a supporting layer and a filter plate layer from top to bottom in sequence, and the ozone aeration layer of the ozone catalytic tower is externally connected with an ozone generator through a pipeline.
In the above technical scheme, preferentially, the top of the ozone catalytic tower is connected with the tail gas destruction device through a pipeline, and the bottom of the ozone catalytic tower is connected with the back flushing device through a pipeline.
In the above technical scheme, preferably, an ozone water outlet tank, a second water inlet pump and a water inlet flowmeter are sequentially arranged on a pipeline between the ozone catalytic oxidation tower and the MBR tank along the flow direction of wastewater.
In the above technical scheme, preferentially, the bottom of the MBR tank is externally connected with an air compressor, and a gas flowmeter is arranged on a connecting pipeline of the air compressor and the MBR tank.
In the above technical scheme, preferably, a water outlet flowmeter is arranged on a pipeline between the water outlet end of the MBR tank and the disinfection tank.
In the above technical scheme, preferably, the water outlet of the reverse osmosis device in the membrane treatment stage is communicated with the bottom of the ozone catalytic oxidation tower through a pipeline, and a first water inlet pump is arranged on the pipeline.
Compared with the prior art, the combined type wastewater treatment device provided by the utility model has the following beneficial effects:
1. the device eliminates toxic and harmful substances, bacteria and the like in the wastewater through multistage depth filtration, so that the wastewater reaches the standard of re-drinking.
2. The whole treatment device has high operation efficiency, high filtering precision and high quality of effluent.
3. The traditional process and the modern process are combined, and the resource utilization rate is improved, so that the purposes of saving resources and protecting resources are realized.
Drawings
FIG. 1 is a schematic view showing the overall structure of a wastewater treatment apparatus of the present utility model;
FIG. 2 is a schematic view of the structure of an ozone catalytic oxidation tower;
in the figure: 1-grid, 2-sedimentation tank, 3-equalizing tank, 4-ultrafiltration device, 5-reverse osmosis device, 6-ozone catalytic oxidation tower, 601-catalyst layer, 602-ozone aeration layer, 603-supporting layer, 604-filter plate layer, 7-ozone water outlet tank, 8-MBR tank, 9-disinfection tank, 10-water outlet tank, 11-energy recovery device, 12-ozone generator, 13-tail gas destruction device, 14-backwashing device, 15-high pressure pump, 16-booster pump, 17-first water inlet pump, 18-second water inlet pump, 19-water inlet flowmeter, 20-water outlet flowmeter, 21-gas flowmeter, 22-air compressor, A-pretreatment stage, B-membrane treatment stage, C-advanced treatment stage.
Detailed Description
It should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," second, "and third" are used merely to distinguish one entity or action from another entity or action, and do not necessarily require or imply any such actual relationship or order between such entities or actions.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
referring to fig. 1 and 2, the combined wastewater treatment device provided by the embodiment of the utility model comprises a pretreatment stage a, a membrane treatment stage B and a deep treatment stage C, wherein the pretreatment stage a, the membrane treatment stage B and the deep treatment stage C are sequentially connected along the wastewater flowing direction through pipelines.
For better implementation of the utility model, with reference to fig. 1, in one embodiment, the pretreatment stage a comprises a grid 1, a sedimentation tank 2 and an adjustment tank 3, which are in turn in communication through pipes. In the embodiment, the fine grating is adopted to intercept sundries in the wastewater, the grating can rotate in the reverse water direction under the drive of a motor, solid matters in the wastewater are separated from the wastewater, then the wastewater enters a sedimentation tank 2, the sedimentation tank 2 in the embodiment adopts a vertical flow sedimentation tank, the wastewater enters the tank from top to bottom through a central pipe in the center of the tank, an umbrella-shaped baffle is arranged below the central pipe to enable the wastewater to slowly rise along the whole water cross section after being uniformly distributed in the tank, suspended matters settle into a conical sludge settling hopper at the bottom of the tank, clarified water flows out from the periphery of the tank along a peripheral overflow weir, and then the pH of the wastewater is regulated through a regulating tank 3 in a flow channel regulating tank 3, so that the water quality is relatively stable.
The grid 1 removes larger suspended matters in the wastewater, and plays a role in protecting subsequent structures and water pumps; the sedimentation tank 2 mainly removes inorganic particles with larger specific gravity in water, protects machine parts and pipelines from abrasion, reduces the load of subsequent structures, separates the inorganic particles from organic particles, and is convenient for separate treatment and disposal; the regulating reservoir 3 mainly provides buffering capacity against organic load, preventing abrupt changes in the biological treatment system.
In order to better implement the utility model, referring to fig. 1, in one embodiment, the membrane treatment stage B includes an ultrafiltration device 4 and a reverse osmosis device 5, and the water outlet of the regulating tank 3 is communicated with the water inlet of the ultrafiltration device 4 through a pipeline, in this embodiment, the ultrafiltration device 4 adopts a capillary membrane assembly, the capillary membrane assembly is composed of capillary membranes with diameters of 0.5-2.5 mm, a plurality of capillary ultrafiltration membranes are placed in a pressure-resistant container in parallel during manufacturing, two ends of the capillary ultrafiltration membranes are encapsulated by epoxy resin, the membrane is manufactured by adopting a fiber spinning process, and the capillary membranes are convenient for back flushing due to no supporting material. The water outlet end of the ultrafiltration device 4 is communicated with the water inlet end of the reverse osmosis device 5 through a pipeline, a high-pressure pump 15 is arranged on a communicating pipeline, the high-pressure pump 15 is used for driving wastewater in the whole device to flow, the concentrated wastewater outlet of the reverse osmosis device 5 is communicated with the water inlet end of the energy recovery device 11 through a pipeline, and the water outlet end of the energy recovery device 11 is communicated with the pipeline between the high-pressure pump 15 and the reverse osmosis device 5 through a pipeline provided with a booster pump 16. The booster pump 16 is used to drive the flow of the concentrated wastewater produced in the reverse osmosis apparatus 5. The reverse osmosis equipment 5 adopts a semipermeable membrane with selective permeability, and uses the pressure difference of two sides of the membrane as driving force to separate clear water in the wastewater from solute to be removed.
In the whole reverse osmosis process, the capacity of high-pressure liquid carried by the high-pressure concentrated wastewater during release is very high, so the reverse osmosis equipment 5 is externally connected with a capacity recovery device 11 for recovering and utilizing the energy, the energy recovery device 11 can adopt an energy recovery mode that a water turbine directly drives a pump, and the kinetic energy carried by the high-pressure concentrated wastewater is converted into the rotary mechanical energy of a pump shaft through the water turbine to drive a booster pump 16, so that the energy is repeatedly utilized.
To ensure that the ultrafiltration device 4 and the reverse osmosis device 5 can be operated smoothly, after a period of operation, by back flushing both, the substances adhering to the membrane are removed and the waste water resulting from the back flushing is transported through the pipeline into the regulating reservoir 3 (back flushing process is not shown in the figure).
For better implementation of the utility model, with reference to fig. 1, in one embodiment, the water outlet of the reverse osmosis device 5 of the membrane treatment stage B is in communication with the bottom of the ozone catalytic oxidation column 6 through a pipe, and a first water inlet pump 17 is provided on the pipe.
In order to better implement the utility model, referring to fig. 1 and 2, in one embodiment, the advanced treatment stage C includes an ozone catalytic oxidation tower 6 and an MBR tank 8, the ozone catalytic oxidation tower 6 is communicated with the MBR tank 8 through a pipeline, an ozone water outlet tank 7, a second water inlet pump 18 and a water inlet flowmeter 19 are sequentially arranged on the pipeline between the ozone catalytic oxidation tower 6 and the MBR tank 8 along the flowing direction of wastewater, the ozone catalytic tower 6 sequentially includes a catalyst layer 601, an ozone aeration layer 602, a support layer 603 and a filter plate layer 604 from top to bottom, the ozone aeration layer of the ozone catalytic tower 6 is externally connected with an ozone generator 12 through a pipeline, the top of the ozone catalytic tower 6 is connected with an exhaust gas destruction device 13 through a pipeline, and the bottom of the ozone catalytic tower 6 is connected with a back flushing device 14 through a pipeline. Under the action of a catalyst, ozone forms hydroxyl free radicals with strong oxidation in water, and the hydroxyl free radicals with strong oxidation are utilized to perform electrochemical reaction and oxidation-reduction reaction on organic or inorganic matters in the wastewater, so that the effects of decomposition, destabilization, adsorption, condensation and the like are achieved, and COD in the wastewater is removed.
In order to ensure that the ozone catalytic oxidation tower 6 can run smoothly, a back flushing device 14 is needed to back flush the tower after the ozone catalytic oxidation tower is used for a period of time, attachments in the tower are removed, and waste water generated by flushing is discharged to the sewage regulating tank 3 for treatment.
In order to better implement the utility model, referring to fig. 1, in one embodiment, the water outlet end of the MBR tank 8 is sequentially connected with the disinfection tank 9 and the water outlet tank 10 through a pipeline, an air compressor 22 is externally connected to the bottom of the MBR tank 8, a gas flowmeter 21 is arranged on a pipeline connecting the air compressor 22 and the MBR tank 8, a water outlet flowmeter 20 and a sampling port are arranged on a pipeline between the water outlet end of the MBR tank 8 and the disinfection tank 9, and the sampling port is convenient for sampling to monitor the water quality of water outlet in the whole treatment process. The wastewater passing through the ozone catalytic oxidation tower 6 enters an MBR tank 8, final high-precision filtration is carried out in the MBR tank 8, microbial flora and purified water are separated, the wastewater after complete purification enters a disinfection tank 9 for final disinfection treatment, the disinfection tank 9 can irradiate the purified water by an ultraviolet lamp, so that the purified water finally reaches the standard of domestic water, and finally the purified water is discharged into a water supply system through a water outlet tank 10.
Based on above-mentioned combination formula effluent treatment plant, its theory of operation is:
the wastewater firstly enters a grid 1 of a pretreatment stage A for removing larger impurities, then enters a sedimentation tank 2 for sedimentation, partial particles are removed, then the wastewater is sent to an adjusting tank 3 for adjusting the pH of water, the pretreatment of the wastewater is completed after passing through the three structures, then the wastewater is sent to an ultrafiltration device 4 of a membrane treatment stage B, the wastewater after ultrafiltration is continuously sent to a reverse osmosis device 5 for completing the whole membrane treatment stage B, then the wastewater is sent to a deep treatment stage C, and finally the advanced treatment is completed in the deep treatment stage C by sequentially passing through an ozone catalytic oxidation tower 6, an ozone water outlet tank 7, an MBR tank 8 and a disinfection tank 9, so that the water reaches the standard of domestic water, finally the wastewater is discharged through a water outlet tank 10, and finally the whole wastewater treatment process is completed.
In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model. It will be apparent that the described embodiments are merely some, but not all, embodiments of the utility model. Based on these embodiments, all other embodiments that may be obtained by one of ordinary skill in the art without inventive effort are within the scope of the utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art may still combine, add or delete features of the embodiments of the present utility model or make other adjustments according to circumstances without any conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present utility model, which also falls within the scope of the present utility model.
Claims (8)
1. The combined wastewater treatment device is characterized by comprising a pretreatment stage (A), a membrane treatment stage (B) and a deep treatment stage (C);
the pretreatment stage (A), the membrane treatment stage (B) and the advanced treatment stage (C) are sequentially connected along the flowing direction of the wastewater through pipelines;
the membrane treatment stage (B) comprises ultrafiltration equipment (4) and reverse osmosis equipment (5), wherein the water outlet end of the ultrafiltration equipment (4) is communicated with the water inlet end of the reverse osmosis equipment (5) through a pipeline, a high-pressure pump (15) is arranged on a communicating pipeline, the concentrated wastewater outlet of the reverse osmosis equipment (5) is communicated with the water inlet end of an energy recovery device (11) through a pipeline, and the water outlet end of the energy recovery device (11) is communicated with a pipeline between the high-pressure pump (15) and the reverse osmosis equipment (5) through a pipeline provided with a booster pump (16);
the advanced treatment stage (C) comprises an ozone catalytic oxidation tower (6) and an MBR pool (8), wherein the ozone catalytic oxidation tower (6) is communicated with the MBR pool (8) through a pipeline, and the water outlet end of the MBR pool (8) is sequentially connected with a disinfection pool (9) and a water outlet pool (10) through pipelines.
2. The combined wastewater treatment device according to claim 1, wherein the pretreatment stage (a) comprises a grid (1), a sedimentation tank (2) and a regulating tank (3) which are communicated sequentially through pipelines, and a water outlet of the regulating tank (3) is communicated with a water inlet of an ultrafiltration device (4) through pipelines.
3. The combined wastewater treatment device according to claim 1, wherein the ozone catalytic oxidation tower (6) comprises a catalyst layer (601), an ozone aeration layer (602), a supporting layer (603) and a filter plate layer (604) from top to bottom in sequence, and the ozone aeration layer of the ozone catalytic oxidation tower (6) is externally connected with an ozone generator (12) through a pipeline.
4. A combined wastewater treatment device according to claim 3, characterized in that the top of the ozone catalytic oxidation tower (6) is connected with the tail gas destruction device (13) through a pipeline, and the bottom of the ozone catalytic oxidation tower (6) is connected with the back flushing device (14) through a pipeline.
5. The combined wastewater treatment device according to claim 1, wherein an ozone water outlet tank (7), a second water inlet pump (18) and a water inlet flowmeter (19) are sequentially arranged on a pipeline between the ozone catalytic oxidation tower (6) and the MBR tank (8) along the wastewater flow direction.
6. The combined wastewater treatment device according to claim 1, wherein an air compressor (22) is externally connected to the bottom of the MBR tank (8), and a gas flowmeter (21) is arranged on a connecting pipeline between the air compressor (22) and the MBR tank (8).
7. The combined type wastewater treatment device according to claim 1, characterized in that a water outlet flow meter (20) is arranged on a pipeline between the water outlet end of the MBR tank (8) and the disinfection tank (9).
8. The combined wastewater treatment device according to claim 1, characterized in that the water outlet of the reverse osmosis equipment (5) of the membrane treatment stage (B) is communicated with the bottom of the ozone catalytic oxidation tower (6) through a pipeline, and a first water inlet pump (17) is arranged on the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321063637.6U CN219991359U (en) | 2023-05-06 | 2023-05-06 | Combined wastewater treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321063637.6U CN219991359U (en) | 2023-05-06 | 2023-05-06 | Combined wastewater treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219991359U true CN219991359U (en) | 2023-11-10 |
Family
ID=88603586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321063637.6U Active CN219991359U (en) | 2023-05-06 | 2023-05-06 | Combined wastewater treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219991359U (en) |
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2023
- 2023-05-06 CN CN202321063637.6U patent/CN219991359U/en active Active
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