CN220877972U - Wastewater treatment equipment with filter element automatic cleaning function - Google Patents
Wastewater treatment equipment with filter element automatic cleaning function Download PDFInfo
- Publication number
- CN220877972U CN220877972U CN202322653678.7U CN202322653678U CN220877972U CN 220877972 U CN220877972 U CN 220877972U CN 202322653678 U CN202322653678 U CN 202322653678U CN 220877972 U CN220877972 U CN 220877972U
- Authority
- CN
- China
- Prior art keywords
- box
- filter
- fixedly connected
- filter element
- wastewater treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 53
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 21
- 241000220317 Rosa Species 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims 1
- 238000006731 degradation reaction Methods 0.000 claims 1
- 230000002452 interceptive effect Effects 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 19
- 239000002351 wastewater Substances 0.000 description 6
- 238000006065 biodegradation reaction Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000004075 wastewater filtration 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
- Filtration Of Liquid (AREA)
Abstract
The utility model discloses wastewater treatment equipment with an automatic filter element cleaning function, and relates to the technical field of wastewater treatment, comprising a filter box and a filter mechanism arranged in the filter box, and the wastewater treatment equipment is characterized in that: the filter mechanism includes a cleaning assembly and a collection assembly. The cleaning assembly includes a filter element; according to the utility model, the cleaning assembly and the collecting assembly are arranged, when impurities on the surface of the filter element are excessive, the electric telescopic rod is started to drive the baffle to slide up and down along the track of the sliding rail, the baffle is opened, then the driving motor is started, the driving motor drives the rotary rod to rotate, the rotary gear is driven to rotate in the same direction, the stressed gear is driven to rotate, the threaded rod is driven to rotate, the cleaning brush is driven to slide left and right along the inner wall of the filter box, and the filter element is arranged on the motion track of the cleaning brush, so that impurities on the surface of the filter element are cleaned when the cleaning brush slides left and right, and the blockage caused by excessive impurities on the surface of the filter element is avoided.
Description
Technical Field
The utility model relates to the technical field of wastewater treatment, in particular to wastewater treatment equipment with an automatic filter element cleaning function.
Background
A wastewater filtration facility is a facility for removing suspended matters in wastewater, and can be used for pretreatment or final treatment of wastewater, and a large amount of suspended matters, sludge and other solid wastes are often accompanied in the treatment of wastewater, so that the solid impurities must be removed by using corresponding equipment.
Most of the existing wastewater treatment equipment removes impurities through a filter screen or a filter element, but most of common wastewater treatment devices do not have the function of automatically cleaning a large amount of impurities, and the filter screen or the filter element and even a water outlet are blocked due to excessive deposition of impurities such as sludge; accordingly, in view of the above, an improvement of the conventional structure has been made, and a wastewater treatment apparatus having an automatic cleaning function of a filter element has been proposed.
Disclosure of utility model
The utility model aims to provide wastewater treatment equipment with an automatic filter element cleaning function, so as to solve the problem of the automatic filter element cleaning in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a waste water treatment equipment with filter core self-cleaning function, includes the rose box and sets up the filter mechanism in the rose box is inside, filter mechanism includes cleaning assembly and collection subassembly.
The cleaning assembly comprises a filter element, the filter element is inserted in the filter box, the installation box is fixedly connected with the side wall of the filter box, a rotating rod is penetrated in the installation box, one end of the rotating rod is fixedly connected with a driving motor, a rotating gear is fixedly connected with the outer wall of the rotating rod, a stressed gear rotationally connected with the filter box is meshed with the side wall of the rotating gear, a threaded rod penetrating through the filter box is fixedly connected with the side wall of the stressed gear, and a cleaning brush is connected with the inner wall of the filter box in a threaded manner.
The collecting assembly comprises a sliding rail, the side wall of the filtering box is provided with the sliding rail, the side face of the filtering box is provided with an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with a baffle plate which is in sliding connection with the sliding rail, and the side wall of the filtering box is fixedly connected with the collecting box below the baffle plate.
Preferably, the lateral wall fixedly connected with connecting plate of filter core, the lateral wall fixedly connected with handle of connecting plate, the lateral wall of rose box just is located the top fixedly connected with fixed block of connecting plate, the inside of fixed block is run through there is the pull rod, the outer wall fixedly connected with of pull rod and rose box lateral wall sliding connection's slider, the top fixedly connected with and fixed block bottom fixedly connected with reset spring of slider, the bottom fixedly connected with base of rose box, the top of base just is located the lateral wall fixedly connected with processing box of rose box, the inside of processing box is provided with good oxygen district, the inside of processing box just is located the side of good oxygen district and is provided with the anaerobism district, the lateral wall of rose box is provided with the raceway, the one end fixedly connected with and the water pump of processing box lateral wall fixedly connected with of rose box are kept away from to the raceway.
Preferably, the filter element is positioned on the motion track of the cleaning brush.
Preferably, the cleaning brush and the filter box form a sliding structure through the threaded rod and the rotary gear.
Preferably, the baffle forms a sliding structure with the sliding rail through an electric telescopic rod.
Preferably, the upper side and the lower side of the connecting plate are respectively provided with a clamping groove which is attached to the outer wall of the pull rod.
Preferably, a sliding groove is formed in the side wall of the filter box, and the sliding block and the filter box form a sliding structure through the pull rod and the reset spring.
Compared with the prior art, the utility model has the beneficial effects that:
1. According to the utility model, the cleaning assembly and the collecting assembly are arranged, when impurities on the surface of the filter element are excessive, the electric telescopic rod is required to be started to drive the baffle to slide up and down along the track of the sliding rail, the baffle is opened, then the driving motor is started, the driving motor drives the rotating rod to rotate, the rotating gear is driven to rotate in the same direction, the stressed gear is driven to rotate, the threaded rod is driven to rotate, the cleaning brush is driven to slide left and right along the inner wall of the filter box when the threaded rod rotates, and the filter element is arranged on the motion track of the cleaning brush, so that impurities on the surface of the filter element are cleaned when the cleaning brush slides left and right, and the impurities on the surface of the filter element are scanned into the collecting box, so that the blockage caused by excessive impurities on the surface of the filter element is avoided;
2. According to the utility model, the pull rod and the connecting plate are arranged, the pull rod is pulled towards one end far away from the connecting plate, the pull rod drives the sliding block to compress the elastic force of the return spring and slide along the sliding groove on the side wall of the filter box, the sliding groove plays a role in limiting sliding of the sliding block, when the pull rod is far away from the clamping groove in the connecting plate, the connecting plate and the filter element are taken out of the filter box through the handle, the filter element after replacement is inserted into the filter box, the pull rod is loosened, the return spring recovers the elastic force, so that the sliding block and the pull rod are restored to be clamped in the clamping groove in the connecting plate, and the purpose of replacing the filter element is achieved.
Drawings
FIG. 1 is a schematic overall structure;
FIG. 2 is a schematic view of a cleaning assembly;
FIG. 3 is a schematic view of the structure of a collection set;
FIG. 4 is a schematic cross-sectional view of a treatment tank;
Fig. 5 is a schematic diagram of the structure of the pull rod and the connecting plate.
In the figure: 1. a filter box; 2. a filtering mechanism; 21. cleaning the assembly; 211. a filter element; 212. a mounting box; 213. a rotating rod; 214. a driving motor; 215. a rotary gear; 216. a force-bearing gear; 217. a threaded rod; 218. a cleaning brush; 22. a collection assembly; 221. a slide rail; 222. an electric telescopic rod; 223. a baffle; 224. a collection box; 3. a connecting plate; 31. a handle; 32. a fixed block; 33. a pull rod; 34. a slide block; 35. a return spring; 36. a base; 37. a treatment box; 38. an aerobic zone; 39. an anaerobic zone; 310. a biodegradation region; 311. a water pipe; 312. and (3) a water pump.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment one: as shown in fig. 1 to 3, a wastewater treatment apparatus with a filter element automatic cleaning function includes a filter tank 1 and a filter mechanism 2 provided inside the filter tank 1, the filter mechanism 2 including a cleaning assembly 21 and a collecting assembly 22.
The cleaning assembly 21 comprises a filter element 211, the filter element 211 is inserted into the filter box 1, the side wall of the filter box 1 is fixedly connected with a mounting box 212, a rotating rod 213 is penetrated into the mounting box 212, one end of the rotating rod 213 is fixedly connected with a driving motor 214, the outer wall of the rotating rod 213 is fixedly connected with a rotating gear 215, the side wall of the rotating gear 215 is meshed with a stress gear 216 which is rotationally connected with the filter box 1, the side wall of the stress gear 216 is fixedly connected with a threaded rod 217 penetrating into the filter box 1, and the outer wall of the threaded rod 217 is in threaded connection with a cleaning brush 218 which is slidingly connected with the inner wall of the filter box 1.
The collecting assembly 22 comprises a sliding rail 221, the side wall of the filtering box 1 is provided with the sliding rail 221, the side face of the filtering box 1 is provided with an electric telescopic rod 222, the output end of the electric telescopic rod 222 is fixedly connected with a baffle 223 which is in sliding connection with the sliding rail 221, and the side wall of the filtering box 1 is fixedly connected with a collecting box 224 below the baffle 223.
Further, the filter core 211 is located on the motion track of the cleaning brush 218, and in operation, impurities on the surface of the filter core 211 are cleaned when the cleaning brush 218 slides left and right by arranging the filter core 211 on the motion track of the cleaning brush 218, so that the impurities are swept into the collecting tank 224, and the blockage caused by excessive impurities on the surface of the filter core 211 is avoided.
Further, the cleaning brush 218 and the filtering box 1 form a sliding structure through the threaded rod 217 and the rotating gear 215, when the cleaning brush works, the driving motor 214 is started, the driving motor 214 drives the rotating rod 213 to rotate, the rotating gear 215 is pushed to rotate in the same direction, the stressed gear 216 is made to rotate, the threaded rod 217 is driven to rotate, and when the threaded rod 217 rotates, the cleaning brush 218 is pushed to slide left and right along the inner wall of the filtering box 1.
Further, the baffle 223 forms a sliding structure with the sliding rail 221 through the electric telescopic rod 222, and when in operation, the electric telescopic rod 222 is started to drive the baffle 223 to slide up and down along the track of the sliding rail 221, so that the baffle 223 is opened.
Embodiment two: as shown in fig. 1-5, the side wall of the filter core 211 is fixedly connected with a connecting plate 3, the side wall of the connecting plate 3 is fixedly connected with a handle 31, the side wall of the filter box 1 is fixedly connected with a fixed block 32 positioned above the connecting plate 3, a pull rod 33 penetrates through the inside of the fixed block 32, the outer wall of the pull rod 33 is fixedly connected with a sliding block 34 which is in sliding connection with the side wall of the filter box 1, the top end of the sliding block 34 is fixedly connected with a reset spring 35 which is fixedly connected with the bottom end of the fixed block 32, the bottom end of the filter box 1 is fixedly connected with a base 36, the top end of the base 36 is fixedly connected with a treatment box 37 positioned on the side wall of the filter box 1, an aerobic zone 38 is arranged inside the treatment box 37, an anaerobic zone 39 is arranged on the side surface of the aerobic zone 38, a biodegradation zone 310 is arranged inside the treatment box 37 and on the side surface of the anaerobic zone 39, the lateral wall of rose box 1 is provided with raceway 311, the one end fixedly connected with that the raceway 311 kept away from rose box 1 and the water pump 312 of processing case 37 lateral wall fixed connection, during operation, draw rod 33 to keeping away from the one end of connecting plate 3, draw rod 33 drives the elasticity of slider 34 compression reset spring 35 and slides along the spout of rose box 1 lateral wall, the spout plays spacing gliding purpose to slider 34, when draw rod 33 kept away from the draw-in groove of connecting plate 3 inside, take out connecting plate 3 and filter core 211 from rose box 1 through handle 31, insert filter core 211 after changing in rose box 1, loosen draw rod 33, reset spring 35 resumes elasticity, make slider 34 and draw rod 33 resume normal position and draw rod 33 card enter into the draw-in groove of connecting plate 3 inside, thereby reach the purpose of changing filter core 211.
Further, the upper side and the lower side of the connecting plate 3 are respectively provided with a clamping groove attached to the outer wall of the pull rod 33, when the filter element 211 is inserted into the filter box 1 after replacement during operation, the pull rod 33 is loosened, the reset spring 35 recovers elasticity, the sliding block 34 and the pull rod 33 are restored to the original positions, and the pull rod 33 is clamped into the clamping grooves in the connecting plate 3, so that the purpose of replacing the filter element 211 is achieved.
Further, the lateral wall of the filter box 1 is provided with a chute, the sliding block 34 and the filter box 1 form a sliding structure through the pull rod 33 and the reset spring 35, when the filter box is in operation, the pull rod 33 is pulled towards one end far away from the connecting plate 3, the pull rod 33 drives the sliding block 34 to compress the elasticity of the reset spring 35 and slide along the chute on the lateral wall of the filter box 1, and the chute achieves the purpose of limiting and sliding on the sliding block 34.
Working principle: when the wastewater treatment equipment with the filter element automatic cleaning function is used, firstly, wastewater enters the filter box 1 through the water inlet, solid impurities contained in the wastewater can be effectively filtered by the filter element 211 through the filtration of the filter element 211, then the filtered wastewater is conveyed into the treatment box 37 through the water pipe 311 by starting the water pump 312, sequentially passes through the aerobic zone 38, the anaerobic zone 39 and the biodegradation zone 310, and finally flows out from the water outlet.
When the impurity on the surface of the filter element 211 is too much, the electric telescopic rod 222 is required to be started to drive the baffle 223 to slide up and down along the track of the sliding rail 221, the baffle 223 is opened, then the driving motor 214 is started, the driving motor 214 drives the rotating rod 213 to rotate, the rotating gear 215 is pushed to rotate in the same direction, the stressed gear 216 is enabled to rotate, thereby driving the threaded rod 217 to rotate, when the threaded rod 217 rotates, the cleaning brush 218 is pushed to slide left and right along the inner wall of the filter box 1, and the filter element 211 is arranged on the movement track of the cleaning brush 218, and the impurity on the surface of the filter element 211 is cleaned when the cleaning brush 218 slides left and right, so that the impurity is swept into the collecting tank 224, and the blockage caused by too much impurity on the surface of the filter element 211 is avoided.
When the filter element 211 needs to be replaced, the pull rod 33 is pulled towards one end far away from the connecting plate 3, the pull rod 33 drives the sliding block 34 to compress the elastic force of the return spring 35 and slide along the sliding groove on the side wall of the filter box 1, the sliding groove achieves the purpose of limiting sliding of the sliding block 34, when the pull rod 33 is far away from the clamping groove inside the connecting plate 3, the connecting plate 3 and the filter element 211 are taken out of the filter box 1 through the handle 31, the filter element 211 after replacement is inserted into the filter box 1, the pull rod 33 is loosened, the elastic force of the return spring 35 is recovered, the sliding block 34 and the pull rod 33 are recovered, and the pull rod 33 is clamped into the clamping groove inside the connecting plate 3, so that the purpose of replacing the filter element 211 is achieved.
The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. The utility model provides a waste water treatment equipment with filter core self-cleaning function, includes rose box (1) and sets up at inside filtering mechanism (2) of rose box (1), its characterized in that: the filtering mechanism (2) comprises a cleaning assembly (21) and a collecting assembly (22);
The cleaning assembly (21) comprises a filter element (211), the filter element (211) is inserted into the filter box (1), the side wall of the filter box (1) is fixedly connected with a mounting box (212), a rotating rod (213) is penetrated in the mounting box (212), one end of the rotating rod (213) is fixedly connected with a driving motor (214), the outer wall of the rotating rod (213) is fixedly connected with a rotating gear (215), the side wall of the rotating gear (215) is meshed with a stress gear (216) which is rotationally connected with the filter box (1), the side wall of the stress gear (216) is fixedly connected with a threaded rod (217) penetrating the filter box (1), and the outer wall of the threaded rod (217) is in threaded connection with a cleaning brush (218) which is slidably connected with the inner wall of the filter box (1);
The collecting assembly (22) comprises a sliding rail (221), the side wall of the filtering box (1) is provided with the sliding rail (221), the side face of the filtering box (1) is provided with an electric telescopic rod (222), the output end of the electric telescopic rod (222) is fixedly connected with a baffle plate (223) which is in sliding connection with the sliding rail (221), and the side wall of the filtering box (1) is fixedly connected with a collecting box (224) below the baffle plate (223).
2. A wastewater treatment apparatus having a filter element automatic cleaning function according to claim 1, characterized in that: the side wall fixedly connected with connecting plate (3) of filter core (211), the side wall fixedly connected with handle (31) of connecting plate (3), the lateral wall of rose box (1) just is located the top fixedly connected with fixed block (32) of connecting plate (3), the inside of fixed block (32) is run through and is had pull rod (33), the outer wall fixedly connected with of pull rod (33) and rose box (1) lateral wall sliding connection's slider (34), the top fixedly connected with of slider (34) and reset spring (35) of fixed block (32) bottom fixed connection, the bottom fixedly connected with base (36) of rose box (1), the top of base (36) just is located the lateral wall fixedly connected with processing box (37) of rose box (1), the inside of processing box (37) is provided with aerobic zone (38), the inside of processing box (37) just is located the side of aerobic zone (38) and is provided with anaerobism district (39), the inside of processing box (37) just is located the side of anaerobism district (39) and is provided with biological degradation district (310), the lateral wall (311) of rose box (1), one end of the water delivery pipe (311) far away from the filter box (1) is fixedly connected with a water pump (312) fixedly connected with the side wall of the treatment box (37).
3. A wastewater treatment apparatus having a filter element automatic cleaning function according to claim 1, characterized in that: the filter element (211) is positioned on the movement track of the cleaning brush (218).
4. A wastewater treatment apparatus having a filter element automatic cleaning function according to claim 1, characterized in that: the cleaning brush (218) and the filter box (1) form a sliding structure through the threaded rod (217) and the rotary gear (215).
5. A wastewater treatment apparatus having a filter element automatic cleaning function according to claim 1, characterized in that: the baffle plate (223) and the sliding rail (221) form an interactive structure through an electric telescopic rod (222).
6. A wastewater treatment apparatus having a filter element automatic cleaning function according to claim 2, characterized in that: clamping grooves which are attached to the outer wall of the pull rod (33) are formed in the upper side and the lower side of the connecting plate (3).
7. A wastewater treatment apparatus having a filter element automatic cleaning function according to claim 2, characterized in that: the side wall of the filter box (1) is provided with a sliding groove, and the sliding block (34) and the filter box (1) form a sliding structure through a pull rod (33) and a return spring (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322653678.7U CN220877972U (en) | 2023-09-28 | 2023-09-28 | Wastewater treatment equipment with filter element automatic cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322653678.7U CN220877972U (en) | 2023-09-28 | 2023-09-28 | Wastewater treatment equipment with filter element automatic cleaning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220877972U true CN220877972U (en) | 2024-05-03 |
Family
ID=90872462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322653678.7U Active CN220877972U (en) | 2023-09-28 | 2023-09-28 | Wastewater treatment equipment with filter element automatic cleaning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220877972U (en) |
-
2023
- 2023-09-28 CN CN202322653678.7U patent/CN220877972U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217163427U (en) | High-efficient secondary filter for waste water treatment | |
| CN114920372A (en) | Industrial wastewater regeneration system | |
| CN111467864A (en) | Domestic sewage discharges filtration system | |
| CN220877972U (en) | Wastewater treatment equipment with filter element automatic cleaning function | |
| CN111535847B (en) | A move a dust collecting equipment for hydraulic support | |
| CN219209134U (en) | Environment-friendly integrated domestic sewage treatment equipment | |
| CN217724746U (en) | Sewage treatment device | |
| CN217367331U (en) | Filter equipment is used in organic silicon resin production | |
| CN114288740A (en) | Solid-liquid separation equipment that sewage detection used | |
| CN220847969U (en) | Water conservancy pump station drain | |
| CN219652733U (en) | Rural sewage rubbish separator | |
| CN216513399U (en) | Water tank of sludge dewatering machine | |
| CN216653577U (en) | Rainwater purification and reuse treatment device | |
| CN214680397U (en) | Oil field water injection scrubbing equipment | |
| CN218188160U (en) | Anti-blocking water purifying equipment | |
| CN218524014U (en) | Replacement device for ball number balls recovered by rubber ball pump | |
| CN115571935B (en) | Building water supply and drainage system | |
| CN220714967U (en) | Solid-liquid separation wastewater treatment device capable of preventing blockage | |
| CN216855880U (en) | Water filter for landscape pool | |
| CN218530107U (en) | Environmental protection engineering pressure filter | |
| CN212594358U (en) | Sewage treatment plant is used in environmental engineering construction | |
| CN220567413U (en) | Air filtering device for fresh air ventilator | |
| CN214936550U (en) | Effluent treatment plant for industrial production | |
| CN220887094U (en) | Micro-polluted surface water denitrification treatment equipment | |
| CN220098780U (en) | Integrated restaurant wastewater treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |