CN115215491B - Front-stage water filtering mechanism and method in barreled water consumable filtering system - Google Patents
Front-stage water filtering mechanism and method in barreled water consumable filtering system Download PDFInfo
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- CN115215491B CN115215491B CN202210828846.9A CN202210828846A CN115215491B CN 115215491 B CN115215491 B CN 115215491B CN 202210828846 A CN202210828846 A CN 202210828846A CN 115215491 B CN115215491 B CN 115215491B
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- water
- pipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000001914 filtration Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000010865 sewage Substances 0.000 claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 239000003344 environmental pollutant Substances 0.000 claims description 18
- 231100000719 pollutant Toxicity 0.000 claims description 18
- 239000002351 wastewater Substances 0.000 claims description 11
- 239000008213 purified water Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 235000012206 bottled water Nutrition 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910021645 metal ion Inorganic materials 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005192 partition Methods 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 150000003839 salts Chemical class 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- -1 silt Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
A front-stage water filtering mechanism and method in a barreled water consumable filtering system comprise a shell, wherein the shell comprises a water inlet cavity and a filtering cavity, a partition plate is arranged at the upper end of the water inlet cavity, a shaft tube is arranged in the shell, the upper end of the shaft tube is rotatably connected to the partition plate, a rotating shaft is arranged in the shell, the upper end of the rotating shaft is fixedly connected with the shaft tube through a plurality of connecting plates, the lower end of the rotating shaft is in transmission connection with a motor connected to the shell, a plurality of paddles are fixedly connected to the shaft tube in the water inlet cavity, a rotary table is fixedly connected to the rotating shaft, a plurality of electrode plates are fixedly connected to the rotary table, the upper ends of the electrode plates are fixedly connected to a connecting ring, an electrode tube is fixedly connected to the filtering cavity, and the electrode plates and the electrode tube are connected with a direct-current power supply anode and a direct-current power supply. The invention can carry out consumable-free purification and filtration on the sewage before entering the consumable filtration process, remove impurities in the sewage, prolong the service life of consumable, and reduce the production cost of enterprises.
Description
Technical Field
The invention relates to the technical field of drinking water, in particular to a front-stage water filtering mechanism and method in a barreled water consumable filtering system.
Background
At present, in the production process of barreled purified water, the common mode is to make source water pass through a series of treatments such as quartz sand rough filtration, active carbon filtration, resin adsorption separation, reverse osmosis membrane and the like in sequence, so as to produce the purified water for drinking. Consumable materials are required to be used in each filtering flow of water filtration, for example: quartz sand, active carbon, resin, reverse osmosis membrane etc. and the life of consumptive material is by the cleanliness factor decision of waiting to purify sewage, if advance to filter the consumptive material before running water gets into it, can greatly prolong the life of consumptive material, greatly reduce the manufacturing cost of enterprise.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a pre-stage water filtering mechanism and a pre-stage water filtering method in a barreled water consumable filtering system, which can perform consumable-free purification and filtration on sewage before entering a consumable filtering process, remove impurities in the sewage, prolong the service life of consumables and reduce the production cost of enterprises.
In order to solve the problems, the technical scheme of the invention is as follows:
the utility model provides a preceding stage drainage mechanism among bottled water consumptive material filtration system, which comprises a housin, the casing includes intake chamber and filter chamber, be equipped with the baffle in the intake chamber upper end, be equipped with the central siphon in the casing, central siphon upper end swivelling joint is on the baffle, be equipped with the pivot in the casing, pivot upper end is through polylith even board and central siphon fixed connection, the pivot lower extreme is connected with the motor drive who connects on the casing, fixedly connected with multi-disc paddle on the central siphon in the intake chamber, fixedly connected with carousel in the pivot, fixedly connected with multi-disc electrode plate on the carousel, each electrode plate upper end fixed connection is on the go-between, fixedly connected with electrode tube in the filter chamber, electrode plate and electrode tube connect DC power supply positive and negative pole, there is the inlet tube at intake chamber one side intercommunication, there is the drain pipe with central siphon intercommunication at intake chamber top, there is the waste pipe at casing bottom intercommunication between electrode tube and carousel.
A front stage water filtering mechanism and method in a barreled water consumable filtering system comprises that sewage is fed into a water inlet cavity through a water inlet pipe and then passes through a blade to enter the filtering cavity, when the sewage is in the filtering cavity, an electrode plate rotates in the filtering cavity, so that the sewage rotates in the filtering cavity, in the rotating process, the electrode plate continuously mixes metal ions into the sewage and is attached to lighter pollutants, the lighter pollutants are attracted to the electrode pipe by the electrode pipe to move towards the electrode pipe, meanwhile, heavier pollutants in the sewage move towards the electrode pipe simultaneously due to centrifugal force, finally the lighter pollutants and the heavier pollutants are discharged from a waste pipe, and the remained purified water enters the shaft pipe and is discharged from the drain pipe.
The beneficial effects of the invention are as follows: utilize centrifugal force and rotatory electrode to purify filtration to sewage, get rid of pollutant (like silt, colloid, flocculation thing etc.) in the sewage and discharge along with the waste water to need not to use the consumptive material during filtering, alleviate follow-up sewage filtration burden from this, can greatly prolong follow-up bottled water and filter the life of consumptive material, greatly reduced enterprise manufacturing cost.
Drawings
The invention is further described with reference to the accompanying drawings:
figure 1 is a schematic cross-sectional view of the present invention,
figure 2 is a schematic cross-sectional view of the structure at A-A in figure 1,
figure 3 is a schematic cross-sectional view of the structure at B-B in figure 1,
figure 4 is a schematic view of a partially enlarged structure of the present invention,
fig. 5 is a schematic diagram of the connection relationship between the electrical devices in the present invention.
In the figure: the water inlet cavity 1, the connecting ring 2, the electrode plate 3, the connecting plate 4, the rotating shaft 5, the rotating disc 6, the shaft seal 7, the power supply disc 8, the motor 9, the waste water pipe 10, the flow regulating electromagnetic valve 11, the annular groove 12, the electrode pipe 13, the convex edge 14, the filter cavity 15, the shaft pipe 16, the neck pipe 17, the blade 18, the water inlet pipe 19, the partition plate 20, the water outlet pipe 21, the TDS sensor 22, the connecting pipe 23, the graphite block 24, the clamping sleeve 25, the spring 26, the guide sleeve 27 and the guide rod 28.
Detailed Description
As shown in figures 1 to 5, a front stage water filtering mechanism in a consumable filtering system for barreled water comprises a shell made of PVC, wherein the shell comprises a thinner water inlet cavity 1 and a thicker filtering cavity 15, the water inlet cavity 1 and the filtering cavity 15 are communicated through a neck/17, a baffle 20 is arranged at the upper end of the water inlet cavity 1, a shaft tube 16 is arranged in the shell, a bearing is arranged on the baffle 20, the upper end of the shaft tube 16 is arranged in the bearing on the baffle 20, a rotating shaft 5 is arranged in the shell, the upper end of the rotating shaft 5 is fixedly connected with the shaft tube 16 through a plurality of connecting plates 4, the lower end of the rotating shaft 5 is in transmission connection with a motor 9 connected to the shell through a coupler, a shaft seal and a bearing are arranged between the rotating shaft 5 and the shell, a plurality of electrode plates 18 are fixedly connected to the shaft tube 16 in the water inlet cavity 1, a rotary disc 6 is fixedly connected to the rotating shaft 5, the electrode plates 3 are fixedly connected to the rotary disc 6, the upper ends of the electrode plates 3 are fixedly connected to the connecting rings 2, the electrode plates 3 are fixedly arranged in the circumferential direction of the rotary disc 6 by the connecting tubes 23, a centrifugal impeller 6 and form a centrifugal impeller structure with the electrode tube 13 in the filter tube 1, and the electrode tube 13 are fixedly connected to the electrode tube 13 in the filter chamber 13 is connected with the anode and the cathode of a direct current power supply, one side of the water inlet cavity 1 is communicated with a water inlet pipe 19, the top of the water inlet cavity 1 is communicated with a water outlet pipe 21 communicated with a shaft tube 16, and the bottom of the shell between the electrode tube 13 and the turntable 6 is communicated with a waste water pipe 10。
The working process of the invention for filtering sewage is as follows: the sewage enters the water inlet cavity 1 from the water inlet pipe 19, then passes through the blade 18 and the neck pipe and enters the filter cavity 15, when the sewage passes through the blade 18, the sewage drives the blade 18 to rotate, the rotating blade 18 drives the shaft tube 16 and the rotating shaft 5 to rotate, thereby driving the electrode plate 3 to rotate in the filter cavity 15, the sewage rotates along with the electrode plate 3 in the filter cavity 15, the electrode plate 3 continuously mixes into the sewage in the rotating process, lighter pollutants such as algae, flocculate and the like are attached to the sewage, the lighter pollutants are attracted by the electrode tube 13 and move towards the electrode tube 13, and meanwhile heavier pollutants such as sediment, metal particles and the like in the sewage move towards the electrode tube 13 due to centrifugal force, then concentrated near the inner wall surface of the electrode tube 13, finally, along with the opening of a valve on the waste water pipe 10, the pollutants are discharged from the waste water pipe 10, and the remained purified water enters the shaft tube 16 and is discharged from the drain pipe 21.
As shown in fig. 4, the electrode tube 13 is made of stainless steel, the rotating shaft 5, the rotating disc 6 and the electrode plate 3 are made of aluminum or iron, the motor 9 is fixedly connected with the shell through the connecting tube 23, the power supply disc 8 is fixedly connected to the rotating shaft 5 in the connecting tube 23, the guide sleeve 27 is fixedly connected to the connecting tube 23, the guide rod 28 is arranged in the guide sleeve 27, one end of the guide rod 28 is fixedly connected with the cutting sleeve 25, the graphite block 24 is arranged in the cutting sleeve 25, the spring 26 is sleeved outside the guide rod 28, two ends of the spring 26 respectively lean against the cutting sleeve 25 and the connecting tube 23, the spring 26 pushes the graphite block 24 to lean against the power supply disc 8, and the positive electrode or the negative electrode of the direct current power supply is connected with the guide rod 28. This structure can supply power to the electrode plate 3 while the electrode plate 3 rotates.
The bottom of the shell is provided with a ring groove 12, the ring groove 12 is positioned between the electrode tube 13 and the rotary disk 6, and the waste water tube 10 is communicated with the ring groove 12. The ring groove 12 is beneficial to accumulating pollutants and facilitating the discharge of wastewater.
A plurality of ribs 14 are provided in the electrode tube 13, and each rib 14 is inclined to the axis of the electrode tube 13 and uniformly distributed around the axis of the electrode tube 13. When sewage rotates in the filter cavity 15, pollutants and water in the sewage can move downwards along with the guiding of the convex edges 14, so that the pollutants in the sewage are rapidly discharged from the waste pipe 10, and the pollution discharge effect is improved.
The motor 9 is a generator, and the positive and negative poles of the generator are electrically connected with the electrode plates 3 and the electrode tubes 13. When the water inflow of the water inlet pipe 19 is maximum, the water flow can drive the blades 18 to rotate at a high speed (such as 400 rpm), so that the electric quantity generated by the generator is enough to supply electricity to the electrode plates 3 and the electrode pipes 13, and the motor 9 can be set as the generator, so that additional wiring is not needed to supply electricity, and the structure of the water filtering mechanism is simpler.
The motor 9 is a driving motor. When the water inlet pipe 19 is insufficient in water inlet flow, the motor 9 can drive the paddle 18 to rotate so as to suck the sewage into the filter cavity 15 and simultaneously rotate the sewage, so that the filtering mechanism can improve the sewage filtering quantity.
A TDS sensor 22 is installed on the drain pipe 21, a flow regulating electromagnetic valve 11 (such as a PID valve) is installed on the waste pipe 10, the TDS sensor 22 is connected with the input end of the controller, and the flow regulating electromagnetic valve 11 is connected with the output end of the controller. The TDS sensor 22 detects the salt content of the purified water, and if the salt content exceeds a preset value, the controller increases the opening of the flow regulating solenoid valve 11, increases the discharge amount of the wastewater, and reduces the discharge amount of the purified water so as to reduce the salt content of the purified water to the preset value, thereby enabling the water filtering mechanism to filter the wastewater with different pollution degrees, and enabling the purified water to be stably output.
Claims (7)
1. The utility model provides a preceding stage drainage mechanism among bottled water consumptive material filtration system, includes the casing, and the casing includes intake chamber (1) and filter chamber (15), is equipped with baffle (20) in intake chamber (1) upper end, is equipped with central siphon (16) in the casing, central siphon (16) upper end swivelling joint on baffle (20), its characterized in that: a rotating shaft (5) is arranged in the shell, the upper end of the rotating shaft (5) is fixedly connected with a shaft tube (16) through a plurality of connecting plates (4), the lower end of the rotating shaft (5) is in transmission connection with a motor (9) connected to the shell, a plurality of paddles (18) are fixedly connected to the shaft tube (16) in the water inlet cavity (1), a rotary table (6) is fixedly connected to the rotating shaft (5), a plurality of electrode plates (3) are fixedly connected to the rotary table (6), the upper ends of the electrode plates (3) are fixedly connected to a connecting ring (2), an electrode tube (13) is fixedly connected to the inside of a filter cavity (15), the electrode plates (3) and the electrode tube (13) are connected with the anode and the cathode of a direct current power supply, a water inlet pipe (19) is communicated to one side of the water inlet cavity (1), a drain pipe (21) communicated with the shaft tube (16) is communicated to the top of the water inlet cavity (1), and a waste water pipe (10) is communicated to the bottom of the shell between the electrode tube (13) and the rotary table (6). The electrode tube (13) is made of stainless steel, the rotating shaft (5), the rotary disc (6) and the electrode plate (3) are made of aluminum or iron, the motor (9) is fixedly connected with the shell through the connecting tube (23), the power supply disc (8) is fixedly connected to the rotating shaft (5) in the connecting tube (23), the guide sleeve (27) is fixedly connected to the connecting tube (23), the guide rod (28) is arranged in the guide sleeve (27), one end of the guide rod (28) is fixedly connected with the clamping sleeve (25), the graphite block (24) is assembled in the clamping sleeve (25), the spring (26) is sleeved outside the guide rod (28), two ends of the spring (26) respectively prop against the clamping sleeve (25) and the connecting tube (23), the spring (26) pushes the graphite block (24) to prop against the power supply disc (8), and the anode or the cathode of the direct current power supply is connected with the guide rod (28).
2. The pre-stage water filtering mechanism in a consumable cartridge filtration system of claim 1, wherein: the bottom of the shell is provided with a ring groove (12), the ring groove (12) is positioned between the electrode tube (13) and the rotary table (6), and the waste water tube (10) is communicated with the ring groove (12).
3. The pre-stage water filtering mechanism in a consumable cartridge filtration system of claim 1, wherein: a plurality of ribs (14) are arranged in the electrode tube (13), and each rib (14) is inclined to the axis of the electrode tube (13) and uniformly distributed around the axis of the electrode tube (13).
4. The pre-stage water filtering mechanism in a consumable cartridge filtration system of claim 1, wherein: the motor (9) is a generator, and the positive and negative poles of the generator are electrically connected with the electrode plates (3) and the electrode tubes (13).
5. The pre-stage water filtering mechanism in a consumable cartridge filtration system of claim 1, wherein: the motor (9) is a driving motor.
6. A pre-stage water filtration mechanism in a cartridge consumable filtration system according to any one of claims 1 to 5 wherein: a TDS sensor (22) is arranged on the drain pipe (21), a flow regulating electromagnetic valve (11) is arranged on the waste pipe (10), the TDS sensor (22) is connected with the input end of the controller, and the flow regulating electromagnetic valve (11) is connected with the output end of the controller.
7. A water filtration method using the pre-stage water filtration mechanism in the cartridge consumable filtration system of claim 5, characterized by: the sewage enters the water inlet cavity (1) from the water inlet pipe (19), then enters the filter cavity (15) through the blade (18), when the sewage is in the filter cavity (15), the electrode plate (3) rotates in the filter cavity (15), so that the sewage rotates in the filter cavity (15), in the rotating process, the electrode plate (3) continuously mixes into the sewage towards metal ions and is attached to lighter pollutants, the lighter pollutants are attracted to the electrode pipe (13) by the electrode pipe (13) to move towards the electrode pipe (13), meanwhile heavier pollutants in the sewage move towards the electrode pipe (13) simultaneously due to centrifugal force, finally the lighter pollutants and the heavier pollutants are discharged from the waste pipe (10), and the remained purified water enters the shaft pipe (16) and is discharged from the water discharge pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210828846.9A CN115215491B (en) | 2022-07-14 | 2022-07-14 | Front-stage water filtering mechanism and method in barreled water consumable filtering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210828846.9A CN115215491B (en) | 2022-07-14 | 2022-07-14 | Front-stage water filtering mechanism and method in barreled water consumable filtering system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115215491A CN115215491A (en) | 2022-10-21 |
| CN115215491B true CN115215491B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210828846.9A Active CN115215491B (en) | 2022-07-14 | 2022-07-14 | Front-stage water filtering mechanism and method in barreled water consumable filtering system |
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| Country | Link |
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| CN (1) | CN115215491B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2044597U (en) * | 1988-10-18 | 1989-09-20 | 张希圣 | Electric depurant |
| CN105461122A (en) * | 2015-12-08 | 2016-04-06 | 黄荣贵 | Rotating electrode type water purifier |
| CN205892945U (en) * | 2016-07-27 | 2017-01-18 | 南京水杯子科技股份有限公司 | Straight drinking water system of pipeline based on reverse osmosis membrane |
| CN109534462A (en) * | 2019-01-16 | 2019-03-29 | 韦志锋 | A kind of round tube nested type rotating electrode of electrolytic sewage slot |
| CN109626679A (en) * | 2019-02-27 | 2019-04-16 | 陆鑫 | A kind of processing method of industrial wastewater treatment device and its industrial wastewater |
-
2022
- 2022-07-14 CN CN202210828846.9A patent/CN115215491B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2044597U (en) * | 1988-10-18 | 1989-09-20 | 张希圣 | Electric depurant |
| CN105461122A (en) * | 2015-12-08 | 2016-04-06 | 黄荣贵 | Rotating electrode type water purifier |
| CN205892945U (en) * | 2016-07-27 | 2017-01-18 | 南京水杯子科技股份有限公司 | Straight drinking water system of pipeline based on reverse osmosis membrane |
| CN109534462A (en) * | 2019-01-16 | 2019-03-29 | 韦志锋 | A kind of round tube nested type rotating electrode of electrolytic sewage slot |
| CN109626679A (en) * | 2019-02-27 | 2019-04-16 | 陆鑫 | A kind of processing method of industrial wastewater treatment device and its industrial wastewater |
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| Publication number | Publication date |
|---|---|
| CN115215491A (en) | 2022-10-21 |
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