CN219259760U - Intensive advanced treatment device for sewage in small towns - Google Patents
Intensive advanced treatment device for sewage in small towns Download PDFInfo
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- CN219259760U CN219259760U CN202223256425.8U CN202223256425U CN219259760U CN 219259760 U CN219259760 U CN 219259760U CN 202223256425 U CN202223256425 U CN 202223256425U CN 219259760 U CN219259760 U CN 219259760U
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- 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
Abstract
The utility model discloses an intensive advanced treatment device for sewage in small towns. The sewage treatment device comprises a rapid mixing tank, a slow mixing tank, a diversion tank, a sedimentation tank, a back flushing device, a filtering tank and a disinfection tank which are sequentially arranged in series, wherein sludge is arranged between the same sides of the rapid mixing tank and the slow mixing tank, and the diversion tank is communicated with the middle part of the sedimentation tank near the bottom end of the sedimentation tank, so that sewage in the sedimentation tank circulates from the middle to the top; the filter tank top is provided with the hoist and mount that is used for hoisting filter cloth between, the disinfection pond top is provided with the dosing room, including surplus sludge screw pump and the backward flow sludge screw pump that are connected with the suction pipe respectively between the mud, surplus sludge screw pump is used for flowing back some mud to the slow mixing tank, backward flow sludge screw pump is used for discharging surplus sludge into the mud pond in the mud room. The utility model is used for the subsequent procedures of biochemical treatment, not only can improve the quality of effluent water, but also can save the occupied area.
Description
Technical Field
The utility model relates to the technical field of water environment pollution treatment, in particular to an intensive advanced treatment device for sewage in small towns.
Background
Urban sewage treatment plants are one of the infrastructures for sewage treatment, and are key links of water treatment work, and the treatment scale and the treatment level directly influence the water treatment effect.
At present, although the treatment technology of the sewage is upgraded and perfected by the urban sewage treatment plant in China, the multi-land sewage treatment plant is also upgraded from the first class B standard of the urban sewage discharge of the prior execution country to the first class A standard. However, with the continuous deep understanding of people on water environment pollution and the improvement of environmental protection consciousness, some cities have higher requirements on the effluent quality of sewage plants.
In the upgrading and reforming engineering of the existing sewage plant, if the quality of the effluent water is to be further improved, the occupied area of the sewage treatment plant is often required to be increased, but with the continuous development of the urban process, urban land resources become more and more scarce.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides an intensive advanced treatment device for sewage in small towns, which is used for the subsequent procedures of biochemical treatment, not only can improve the quality of effluent water, but also can save the occupied area.
In order to achieve the aim, the ecological filtering dam water treatment device for rain and sewage overflow port treatment, which is designed by the utility model, comprises a rapid mixing tank, a slow mixing tank, a diversion tank, a sedimentation tank, a back flushing device, a filtering tank and a disinfection tank which are sequentially arranged in series, and is characterized in that: the same side of the rapid mixing tank and the slow mixing tank is provided with a sludge room,
the water inlet of the diversion tank is provided with a diversion weir, and the diversion tank is communicated with the middle part of the sedimentation tank near the bottom end of the sedimentation tank, so that sewage in the sedimentation tank flows from the middle to the top;
the bottom center of the sedimentation tank is provided with a mud scraper, the bottom end of the mud scraper is provided with a mud suction pipe communicated with mud, the middle part of the sedimentation tank is provided with an inclined pipe sedimentation area for separating mud from water flowing from the middle to the top, the upper part of the sedimentation tank is provided with a water collecting tank, and the upper part of the sedimentation tank, which is close to the side wall of the back flushing device, is communicated with a second guide pipe communicated with the filtering tank;
the filter tank comprises a temporary tank and a filter cloth filter tank which are communicated, the temporary tank is communicated with a second guide pipe, a gate is arranged at the water outlet of the temporary tank, the gate is connected with a gate hoist, a water inlet weir is arranged at the water inlet of the filter cloth filter tank, a fiber filter is fixedly installed in the filter cloth filter tank, a mud discharge perforated pipe arranged along the water flow direction is arranged below the fiber filter tank, a backwash pipeline connected with a backwash device is also arranged below the fiber filter tank, a guide wall for intercepting sludge is arranged at the water outlet of the fiber filter tank, a second guide hole is arranged at the lower part of the side wall of the filter tank, which is close to the disinfection tank, and a hoisting room for hoisting filter cloth is arranged at the top end of the filter tank;
a dosing chamber is arranged at the top end of the disinfection tank, dosing equipment is arranged in the dosing chamber, and a third diversion hole is arranged at the upper part of the disinfection tank, which is close to the external side wall;
the sludge chamber comprises a surplus sludge screw pump and a backflow sludge screw pump which are respectively connected with the sludge suction pipe, the surplus sludge screw pump is used for backflow of part of sludge to the slow mixing tank, and the backflow sludge screw pump is used for discharging the surplus sludge into the sludge tank in the sludge chamber.
Further, the rapid mixing tank comprises a water inlet pipe for inputting sewage after biochemical treatment, a rapid mixing stirrer is arranged in the rapid mixing tank, and a first guide pipe is communicated with the bottom of the side wall of the rapid mixing tank, which is close to the side wall of the slow mixing tank; the slow mixing pool comprises a central guide cylinder communicated with the first guide pipe, a slow mixing stirrer is arranged in the central guide cylinder, and a first guide hole is formed in the bottom of the side wall of the slow mixing pool, which is close to the guide pool.
Furthermore, polyaluminium chloride is added into the rapid mixing tank, and polyacrylamide is added into the central guide cylinder.
Further, a rotary skimming tube is arranged on the water surface of the diversion pool, which is close to the sedimentation pool, a blow-down tube is arranged below the rotary skimming tube, and a waste slag pool for collecting skimming is arranged on the side of the diversion pool, which is close to the rotary skimming tube.
Further, the upper surface of the diversion weir is in a zigzag shape.
Further, the bottom wall of the sedimentation tank is provided with a slope of 10% toward the center.
Further, the disinfection pond is a contact disinfection pond, and the contact disinfectant is sodium hypochlorite.
Further, a measuring groove is communicated with the water outlet of the third diversion hole of the disinfection tank, and a water outlet monitoring room is arranged at the top ends of the disinfection tank and the measuring groove.
Still further, the metering tank is a pasteurization metering tank.
Further, the water surface fall of the two adjacent tanks of the rapid mixing tank, the slow mixing tank, the diversion tank, the sedimentation tank, the filtering tank, the disinfection tank and the metering tank is more than or equal to 0.2m.
The utility model has the advantages that:
1. the utility model fully adopts the design of high-low dislocation layers, and naturally flows from high to low under the action of the gravity of the water body, so that the power lifting link is reduced, and the energy consumption is saved;
2. the utility model combines coagulating sedimentation, filtration and disinfection into a whole, and the removal rate of pollution indexes such as Suspended Substances (SS), total Nitrogen (TN), total Phosphorus (TP), chemical Oxygen Demand (COD) and the like in sewage can reach more than 95%, thereby reducing the pollution load of natural water, helping to improve the quality of water environment and improving the self-cleaning capability of water;
3. the integrated design among the sedimentation tank, the back flushing device, the cloth filter, the contact disinfection tank and the sludge reduces the occupied area by 30%, and is suitable for upgrading and reforming factory stations with short occupied area;
the intensive advanced treatment device for sewage in small towns is used for the subsequent procedures of biochemical treatment, can modularly implement sewage treatment, can improve the quality of effluent water, and can save the occupied area.
Drawings
FIG. 1 is a plan view of an intensive deep treatment device for sewage in small towns;
FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1;
FIG. 3 is a B-B cross-sectional view of FIG. 1;
FIG. 4 is a left side view of the weir of FIG. 3;
FIG. 5 is a left side view of the rotating skimming tube and reject pool of FIG. 3;
FIG. 6 is a schematic view of the bottom wall of the sedimentation tank in FIG. 3;
FIG. 7 is a left side view of the filter basin and hanger of FIG. 3;
in the figure: the device comprises a rapid mixing tank 1, a slow mixing tank 2, a diversion tank 3, a sedimentation tank 4, a back flushing device 5, a filter tank 6, a disinfection tank 7, a metering tank 8, a sludge room 9, a waste slag tank 10, a hoisting room 11, a dosing room 12 and a water outlet monitoring room 13;
the rapid mixing tank 1 includes: the device comprises a water pipe 1-1, a first guide pipe 1-2 and a rapid mixing stirrer 1-3;
the slow mixing tank 2 includes: a central guide cylinder 2-1, a first guide hole 2-2 and a slow mixing stirrer 2-3;
the diversion tank 3 comprises: a diversion weir 3-1, a rotary skimming tube 3-2 and a blow-down tube 3-3;
the sedimentation tank 4 includes: a mud scraper 4-1, a mud suction pipe 4-2, an inclined pipe sedimentation zone 4-3, a water collecting tank 4-4 and a second guide pipe 4-5;
the filter tank 6 includes: the temporary storage pond 6-1, the cloth filter 6-2, the gate 6-3, the gate hoist 6-4, the water inlet weir 6-5, the fiber filter 6-6, the sludge discharge perforated pipe 6-7, the back flush pipeline 6-8, the guide wall 6-9 and the second guide hole 6-10;
the sterilizing pond 7 includes: a third deflector hole 7-1;
the inter-sludge space 9 includes: a surplus sludge screw pump 9-1, a return sludge screw pump 9-2 and a sludge tank 9-3;
the dosing chamber 12 includes: dosing device 12-1.
Detailed Description
The utility model is described in further detail below with reference to the drawings and specific examples.
In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the utility model.
As shown in figures 1-7, the intensive deep treatment device for sewage in small towns comprises a rapid mixing tank 1, a slow mixing tank 2, a diversion tank 3, a sedimentation tank 4, a back flushing device 5, a filtering tank 6 and a disinfection tank 7 which are sequentially arranged in series, wherein sludge chambers 9 are arranged on the same sides of the rapid mixing tank 1 and the slow mixing tank 2.
The rapid mixing tank 1 comprises a water inlet pipe 1-1 for inputting sewage after biochemical treatment, flocculating agent polyaluminium chloride (PAC) is added into the rapid mixing tank 1, a rapid mixing stirrer 1-3 is arranged in the rapid mixing tank 1, and a first guide pipe 1-2 is communicated with the bottom of the side wall of the rapid mixing tank 1, which is close to the side wall of the slow mixing tank 2. The flocculant PAC and suspended matters in sewage are quickly stirred and mixed and then naturally flow into a slow mixing tank 2 through a first flow guiding pipe 1-2.
The slow mixing tank 2 comprises a central guide cylinder 2-1 communicated with the first guide pipe 1-2, flocculating agent Polyacrylamide (PAM) is added into the central guide cylinder 2-1, a slow mixing stirrer 2-3 is arranged in the central guide cylinder 2-1, and a first guide hole 2-2 is arranged at the bottom of the side wall of the slow mixing tank 2, which is close to the guide tank 3. The flocculant PAM and suspended matters in sewage are stirred and mixed slowly, naturally flow into the first diversion hole 2-2 after passing through the central diversion cylinder 2-1, and enter the diversion pool 3.
The water inlet of the diversion pool 3 is provided with a diversion weir 3-1, and the upper surface of the diversion weir 3-1 is zigzag. The diversion tank 3 is communicated with the middle part of the sedimentation tank 4 near the bottom end of the sedimentation tank 4, so that sewage in the sedimentation tank 4 circulates from the middle to the top. The heavier flocculation sediment generated in the sewage is trapped between the first diversion hole 2-2 and the diversion weir 3-1 by the diversion weir 3-1. The remaining lighter flocculated sediment and sewage passes over the diversion weir 3-1 into the sedimentation tank 4.
Preferably, a rotary skimming tube 3-2 is arranged on the water surface of the diversion tank 3 close to the sedimentation tank 4, a blow-down tube 3-3 is arranged below the rotary skimming tube 3-2, and a waste slag tank 10 for collecting skimming is arranged on the side of the diversion tank 3 close to the rotary skimming tube 3-2.
After the sewage carrying the lighter flocculation sediment flows through the position of the rotary skimming pipe 3-2, the rotary skimming pipe 3-2 skims the flocculation sediment floating on the water surface to the waste slag pool 10, a grid is arranged at the upper end of the waste slag pool 10, the grid intercepts the flocculation sediment, the residual turbid water falls into the waste slag pool 10, and finally the residual turbid water is discharged into a factory sewage inspection well through a pipeline at the bottom of the waste slag pool 10.
The center of the bottom of the sedimentation tank 4 is provided with a mud scraper 4-1, the bottom end of the mud scraper 4-1 is provided with a mud suction pipe 4-2 leading to a mud room 9, the middle part of the sedimentation tank 4 is provided with an inclined pipe sedimentation zone 4-3 for separating mud from water flowing from the middle to the top, the upper part of the sedimentation tank 4 is provided with a water collecting tank 4-4, and the upper part of the side wall of the sedimentation tank 4, which is close to a back flushing device 5, is communicated with a second guide pipe 4-5 leading to a filter tank 6.
Preferably, the bottom wall of the sedimentation tank 4 is provided with a slope of 10% toward the center.
The skimmed sewage flows through the sedimentation tank 4 from the middle to the top, flows through the inclined tube sedimentation area 4-3 for mud-water separation, and the sludge falls into the bottom wall of the sedimentation tank 4, is collected to the center of the bottom wall of the sedimentation tank 4 by the sludge scraper 4-1, and is lifted to the sludge room 9 by the sludge suction tube 4-2; the turbid water from which the sludge is separated is collected by the water collecting tank 4-4 and flows into the filter tank 6 through the second flow guiding pipe 4-5.
The filter tank 6 comprises a temporary tank 6-1 and a cloth filter tank 6-2 which are arranged in a communicating way, the temporary tank 6-1 is communicated with a second guide pipe 4-5, a gate 6-3 is arranged at the water outlet of the temporary tank 6-1, the gate 6-3 is connected with a gate hoist 6-4, a water inlet weir 6-5 is arranged at the water inlet of the cloth filter tank 6-2, a fiber filter 6-6 is fixedly arranged in the cloth filter tank 6-2, a mud discharge perforated pipe 6-7 arranged along the water flow direction is arranged below the fiber filter 6-6, a backwash pipeline 6-8 connected with a backwash device 5 is further arranged below the fiber filter 6-6, a guide wall 6-9 for intercepting sludge is arranged at the water outlet of the fiber filter 6-6, a second guide hole 6-10 is arranged at the lower part of the side wall of the filter tank 6 close to the disinfection tank 7, a hoisting room 11 for hoisting filter cloth is arranged at the top of the filter tank 6, and the gate hoist 6-4 is arranged in the hoisting room 11.
Turbid water enters a temporary storage tank 6-1, enters a cloth filter tank 6-2 through a gate 6-3, small particle sediments in the turbid water are trapped between the gate 6-3 and the water inlet weir 6-5 by a water inlet weir 6-5, the turbid water after separating the small particle sediments enters a fiber filter 6-6 for fine filtration, and filtered clear water sequentially enters a disinfection tank 7 through a guide wall 6-9 and a second guide hole 6-10.
After fine filtration for a period of time, the sludge trapped on the filter cloth of the fiber filter 6-6 is washed by a back flushing device 5, and the washed sludge is discharged out of the filter tank 6 through a sludge discharge perforated pipe 6-7.
The top end of the disinfection pond 7 is provided with a dosing room 12, dosing equipment 12-1 is arranged in the dosing room 12, and a third diversion hole 7-1 is arranged on the upper part of the disinfection pond 7, which is close to the outer side wall.
Preferably, the disinfection tank 7 is a contact disinfection tank, and the contact disinfectant is sodium hypochlorite.
The clean water enters the disinfection tank 7 for disinfection, and the disinfected clean water flows out through the third diversion hole 7-1.
The sludge room 9 comprises a surplus sludge screw pump 9-1 and a return sludge screw pump 9-2 which are respectively connected with the sludge suction pipe 4-2, wherein the surplus sludge screw pump 9-1 is used for returning part of sludge to the slow mixing tank 2, and the return sludge screw pump 9-2 is used for discharging the surplus sludge into the sludge tank 9-3 in the sludge room 9. And concentrating and dehydrating the residual sludge, and then conveying the residual sludge to farmlands and flower fields to be used as fertilizer.
Preferably, the water outlet of the third diversion hole 7-1 of the disinfection tank 7 is communicated with a metering tank 8, and the metering tank 8 is a pasteurization metering tank. The top ends of the disinfection tank 7 and the metering tank 8 are provided with a water outlet monitoring room 13.
In addition, the water surface fall of two adjacent tanks of the rapid mixing tank 1, the slow mixing tank 2, the diversion tank 3, the sedimentation tank 4, the filtering tank 6, the disinfection tank 7 and the metering tank 8 is more than or equal to 0.2m, so as to ensure that the two connected tanks are in a self-flowing state, and the advanced treatment device can normally operate.
The utility model fully adopts the design of high-low dislocation layers, and naturally flows from high to low under the action of the self gravity of the water body, so that the power lifting link is reduced, and the energy consumption is saved.
The utility model combines coagulating sedimentation, filtration and disinfection into a whole, and the removal rate of pollution indexes such as Suspended Substances (SS), total Nitrogen (TN), total Phosphorus (TP), chemical Oxygen Demand (COD) and the like in sewage can reach more than 95%, thereby reducing pollution load of natural water, helping to improve water environment quality and improving self-cleaning capability of water.
The integrated design among the sedimentation tank, the back flushing device, the filter cloth filter tank, the contact disinfection tank and the sludge reduces the occupied area by 30 percent, and is suitable for upgrading the station with short occupied area.
The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present utility model should be made in the equivalent manner, and the embodiments are included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a little town sewage intensification advanced treatment device, includes quick mixing tank (1), slow mixing tank (2), water conservancy diversion pond (3), sedimentation tank (4), back flush unit (5), filtering ponds (6) and disinfection pond (7) of establishing ties in proper order, its characterized in that: the same side of the rapid mixing tank (1) and the slow mixing tank (2) is provided with a sludge room (9),
the water inlet of the diversion tank (3) is provided with a diversion weir (3-1), and the diversion tank (3) is communicated with the middle part of the sedimentation tank (4) near the bottom end of the sedimentation tank (4), so that sewage in the sedimentation tank (4) circulates from the middle to the top;
the sludge treatment device is characterized in that a sludge scraper (4-1) is arranged at the center of the bottom of the sedimentation tank (4), a sludge suction pipe (4-2) leading to a sludge room (9) is arranged at the bottom end of the sludge scraper (4-1), an inclined pipe sedimentation zone (4-3) for separating sludge from water flowing from the middle and upwards is arranged in the middle of the sedimentation tank (4), a water collecting tank (4-4) is arranged at the upper part of the sedimentation tank (4), and a second guide pipe (4-5) leading to a filter tank (6) is communicated with the upper part of the side wall of the sedimentation tank (4) close to a backwashing device (5);
the filter tank (6) comprises a temporary tank (6-1) and a filter cloth filter tank (6-2) which are arranged in a communicating way, the temporary tank (6-1) is communicated with a second guide pipe (4-5), a gate (6-3) is arranged at the water outlet of the temporary tank (6-1), the gate (6-3) is connected with a gate hoist (6-4), an water inlet weir (6-5) is arranged at the water inlet of the filter cloth filter tank (6-2), a fiber filter (6-6) is fixedly arranged in the filter cloth filter tank (6-2), a sludge discharge perforated pipe (6-7) which is arranged along the water flow direction is arranged below the fiber filter (6-6), a backwash pipeline (6-8) which is connected with a backwash device (5) is also arranged below the fiber filter (6-6), a guide wall (6-9) for intercepting sludge is arranged at the water outlet of the fiber filter (6-6), a second guide hole (6-10) is arranged at the lower part of the side wall of the filter tank (6) close to the side wall of the filter tank (7), and a filter cloth (11) is hung between the filter cloth filter tanks;
a dosing chamber (12) is arranged at the top end of the disinfection tank (7), dosing equipment (12-1) is arranged in the dosing chamber (12), and a third diversion hole (7-1) is formed in the upper part of the disinfection tank (7) close to the external side wall;
the sludge room (9) comprises an excess sludge screw pump (9-1) and a reflux sludge screw pump (9-2) which are respectively connected with the sludge suction pipe (4-2), wherein the excess sludge screw pump (9-1) is used for refluxing part of sludge to the slow mixing tank (2), and the reflux sludge screw pump (9-2) is used for discharging the excess sludge into a sludge tank (9-3) in the sludge room (9).
2. The intensive deep treatment device for sewage in small towns according to claim 1, wherein: the rapid mixing tank (1) comprises a water inlet pipe (1-1) for inputting sewage after biochemical treatment, a rapid mixing stirrer (1-3) is arranged in the rapid mixing tank (1), and a first guide pipe (1-2) is communicated with the bottom of the side wall of the rapid mixing tank (1) close to the slow mixing tank (2); the slow mixing pool (2) comprises a central guide cylinder (2-1) communicated with the first guide pipe (1-2), a slow mixing stirrer (2-3) is arranged in the central guide cylinder (2-1), and a first guide hole (2-2) is formed in the bottom of the side wall of the slow mixing pool (2) close to the guide pool (3).
3. The intensive deep treatment device for sewage in small towns according to claim 2, wherein: polyaluminium chloride is added into the rapid mixing tank (1), and polyacrylamide is added into the central guide cylinder (2-1).
4. The intensive deep treatment device for sewage in small towns according to claim 1, wherein: the device is characterized in that a rotary skimming pipe (3-2) is arranged on the water surface of the diversion tank (3) close to the sedimentation tank (4), a blow-down pipe (3-3) is arranged below the rotary skimming pipe (3-2), and a skimming tank (10) for collecting skimming is arranged on the side of the diversion tank (3) close to the rotary skimming pipe (3-2).
5. The intensive deep treatment device for sewage in small towns according to claim 1, wherein: the upper surface of the diversion weir (3-1) is in a zigzag shape.
6. The intensive deep treatment device for sewage in small towns according to claim 1, wherein: the bottom wall of the sedimentation tank (4) is provided with a slope of 10% toward the center.
7. The intensive deep treatment device for sewage in small towns according to claim 1, wherein: the disinfection tank (7) is a contact disinfection tank, and the contact disinfectant is sodium hypochlorite.
8. The intensive deep treatment device for sewage in small towns according to claim 1, wherein: the water outlet of the third diversion hole (7-1) of the disinfection tank (7) is communicated with a metering tank (8), and a water outlet monitoring room (13) is arranged at the top ends of the disinfection tank (7) and the metering tank (8).
9. The intensive deep treatment device for sewage in small towns according to claim 8, wherein: the metering tank (8) is a pasteurization metering tank.
10. The intensive deep treatment device for sewage in small towns according to claim 9, wherein: the water surface fall of two adjacent tanks of the rapid mixing tank (1), the slow mixing tank (2), the diversion tank (3), the sedimentation tank (4), the filtering tank (6), the disinfection tank (7) and the metering tank (8) is more than or equal to 0.2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223256425.8U CN219259760U (en) | 2022-12-06 | 2022-12-06 | Intensive advanced treatment device for sewage in small towns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223256425.8U CN219259760U (en) | 2022-12-06 | 2022-12-06 | Intensive advanced treatment device for sewage in small towns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219259760U true CN219259760U (en) | 2023-06-27 |
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ID=86866267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223256425.8U Active CN219259760U (en) | 2022-12-06 | 2022-12-06 | Intensive advanced treatment device for sewage in small towns |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219259760U (en) |
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2022
- 2022-12-06 CN CN202223256425.8U patent/CN219259760U/en active Active
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