CN221155502U - Double-layer sedimentation tank - Google Patents
Double-layer sedimentation tank Download PDFInfo
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- CN221155502U CN221155502U CN202323124522.6U CN202323124522U CN221155502U CN 221155502 U CN221155502 U CN 221155502U CN 202323124522 U CN202323124522 U CN 202323124522U CN 221155502 U CN221155502 U CN 221155502U
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- sedimentation
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- inclined plate
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- 238000004062 sedimentation Methods 0.000 title claims abstract description 228
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 109
- 238000004891 communication Methods 0.000 claims abstract description 24
- 239000010802 sludge Substances 0.000 claims description 41
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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Abstract
The application discloses a double-layer sedimentation tank, which comprises a advection sedimentation zone, an inclined plate sedimentation zone, a water inlet zone, a mud scraper and a mud bucket, wherein the advection sedimentation zone is positioned at the lower layer of the double-layer sedimentation tank; the inclined plate sedimentation zone is positioned at the upper layer of the double-layer sedimentation tank, at least two inclined plates are arranged in the inclined plate sedimentation zone, the inclined plate sedimentation zone is communicated with the advection sedimentation zone through a communication zone, and the communication zone is arranged close to the side wall of one side of the double-layer sedimentation tank; the water inlet area is positioned at the side wall of the other side of the double-layer sedimentation tank, the water inlet area is communicated with the advection sedimentation area, and the water flow direction in the sloping plate sedimentation area is opposite to the water flow direction in the advection sedimentation area; mud scrapers are respectively arranged in the advection sedimentation zone and the inclined plate sedimentation zone, and the mud scrapers scrape mud along the reverse water flow direction; the mud bucket is arranged at the bottom of the advection sedimentation zone; the mud scraper in the inclined plate sedimentation zone scrapes the mud to the communicating zone, and the mud scraper in the advection sedimentation zone scrapes the mud to the mud bucket.
Description
Technical Field
The application relates to the technical field of water treatment, in particular to a double-layer sedimentation tank.
Background
The general sewage treatment plant mainly comprises the following treatment units: grille, lifting pump house, sand setting tank, primary sedimentation tank, biochemical tank, secondary sedimentation tank and disinfection, wherein various novel energy-saving innovative technologies for removing nitrogen and phosphorus pollutants can be realized at present, but for SS, the conventional mud-water separation technology still adopts the traditional gravity sedimentation principle. Therefore, the sedimentation tank is used as the last procedure of the conventional water treatment process, and has the functions of separating mud from water and concentrating sludge, and returning the separated sludge to the biological treatment section, so that the quality of the running condition of the sedimentation tank directly influences the quality of effluent water and the concentration of returned sludge.
The advection sedimentation tank is used as the most basic sedimentation tank type, has the advantages of simple structure, small construction difficulty, stable operation, convenient maintenance, strong impact load resistance and the like, but has the defects of low sedimentation efficiency, difficult uniform water distribution, large occupied area, large difference between sludge sedimentation and sludge sedimentation, uneven water discharge and the like.
In order to improve the operation efficiency of the advection sedimentation tank, an inclined plate (pipe) sedimentation tank is produced. The inclined plate (pipe) sedimentation tank is based on shallow tank theory, and the inclined plate (pipe) is added in the sedimentation tank, so that the sedimentation distance of particles is shortened, the inclined plate (pipe) of the inclined plate (pipe) sedimentation tank is equivalent to a shallow sedimentation tank, and the surface load of the sedimentation tank is greatly increased, so that the sedimentation efficiency is improved, the surface load of the sedimentation tank is increased, the occupied area is reduced, but the defects of easy mud accumulation of the inclined plate, unstable water quality of effluent, poor impact load resistance and the like are also present.
Disclosure of utility model
In order to solve at least one of the technical problems, the application provides a double-layer sedimentation tank, and the adopted technical scheme is as follows.
The double-layer sedimentation tank provided by the application comprises a advection sedimentation zone, an inclined plate sedimentation zone, a water inlet zone, a mud scraper and a mud bucket, wherein the advection sedimentation zone is positioned at the lower layer of the double-layer sedimentation tank; the inclined plate sedimentation zone is positioned at the upper layer of the double-layer sedimentation tank, the inclined plate sedimentation zone is provided with at least two mutually parallel inclined plates, the inclined plates are obliquely arranged in the inclined plate sedimentation zone, the inclined plate sedimentation zone is communicated with the advection sedimentation zone through a communication zone, and the communication zone is arranged close to the side wall of one side of the double-layer sedimentation tank; the water inlet area is positioned at the side wall of the other side of the double-layer sedimentation tank, the water inlet area is communicated with the advection sedimentation area, in the advection sedimentation area, muddy water mixed liquid flows from the end of the water inlet area to the end of the communication area, and the water flow direction in the inclined plate sedimentation area is opposite to the water flow direction in the advection sedimentation area; the mud scraper is respectively arranged in the advection sedimentation zone and the inclined plate sedimentation zone, and scrapes mud along the reverse water flow direction; the mud bucket is arranged at the bottom of the advection sedimentation zone; the mud scraper in the inclined plate sedimentation zone scrapes the mud to the communication zone, and the mud scraper in the advection sedimentation zone scrapes the mud to the mud bucket.
In some embodiments of the application, a water distribution wall is arranged on the side wall between the water inlet area and the advection sedimentation area.
In certain embodiments of the present application, the double-deck sedimentation tank comprises a deck plate dividing the double-deck sedimentation tank into the inclined plate sedimentation zone of an upper layer and the advection sedimentation zone of a lower layer.
In some embodiments of the present application, the double-layer sedimentation tank includes a driving component, the driving component is disposed at the top of the double-layer sedimentation tank, and the driving component drives the inclined plate sedimentation zone and the mud scraper in the advection sedimentation zone to move through a transmission chain.
In certain embodiments of the present application, the inclined plate settling zone and the mud scraper in the advection settling zone share a set of the drive assembly and drive train.
In some embodiments of the application, the double-layer sedimentation tank comprises a water outlet area, and the water outlet area is arranged above the inclined plate sedimentation area.
In some embodiments of the present application, the water outlet area includes a water outlet total tank and at least two water outlet branch tanks, and each water outlet branch tank merges into the water outlet total tank.
In some embodiments of the present application, the inclined plate sedimentation zone is provided with a flow guide baffle, and the flow guide baffle is located at one end of the inclined plate sedimentation zone, which is close to the communication zone.
In some embodiments of the present application, the inclined plate disposed in the inclined plate precipitation zone has a length of 100 to 120cm, and the interval between adjacent inclined plates is 8 to 10cm.
In some embodiments of the present application, the scraper is attached to the mud scraper, and the scraper is in an upright state when the mud scraper runs in the reverse water flow direction; when the mud scraper moves along the water flow direction, the scraping plate is in a horizontal state.
In certain embodiments of the application, the mud bucket is provided with a mud pipe.
The application can be widely applied to the technical field of water treatment, and can obtain high-quality effluent quality and high-concentration return sludge compared with the traditional process. Compared with the prior art, the method has at least the following outstanding substantive features and remarkable progress:
The sludge sedimentation curve is combined, the respective advantages of the advection sedimentation zone and the inclined plate sedimentation zone are fully exerted, the sedimentation of high-concentration, high-density and large-particle sludge in the advection sedimentation zone is realized, and the sedimentation of small-particle and low-density sludge in the inclined plate sedimentation zone is realized, so that on one hand, the sludge sedimentation efficiency of the advection sedimentation zone is improved, and the non-uniformity caused by the sludge sedimentation is avoided;
On the other hand, the concentration of the sludge entering the inclined plate sedimentation zone is reduced, so that the defects of sludge accumulation blockage, unstable effluent quality, poor impact load resistance and the like caused by high-concentration sludge are scientifically avoided;
The advection sedimentation area and the inclined plate sedimentation area share a set of mud discharging driving assembly, and the two mud scrapers adopt a relay type mud scraping operation mode, so that the equipment investment is saved, and the maintenance and the management are convenient; the double-layer sedimentation tank is arranged in double layers, so that the occupied area is small and the total engineering investment is small.
Drawings
The described and/or additional aspects and advantages of embodiments of the present application will become apparent and readily appreciated from the following description taken in conjunction with the accompanying drawings. It should be noted that the embodiments shown in the drawings below are exemplary only and are not to be construed as limiting the application.
Fig. 1 is a schematic structural diagram of a double-layer sedimentation tank.
Fig. 2 is a schematic diagram of the structure of the tank surface of the double-layer sedimentation tank.
Reference numerals: 101. a advection sedimentation zone; 102. a sloping plate sedimentation zone; 103. a communication region; 104. a water inlet area; 105. a mud scraper; 106. a mud bucket; 107. a water distribution flower wall; 108. a water outlet total tank; 109. a water outlet branch groove; 110. and a drainage canal.
Detailed Description
Embodiments of the present application are described in detail below with reference to fig. 1-2, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
In the description of the present application, it should be understood that, if the terms "center", "middle", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are used as directions or positional relationships based on the directions shown in the drawings, the directions are merely for convenience of description and for simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present application. Features defining "first", "second" are used to distinguish feature names from special meanings, and furthermore, features defining "first", "second" may explicitly or implicitly include one or more such features. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, 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 application will be understood in specific cases by those of ordinary skill in the art.
The application relates to a double-layer sedimentation tank, which comprises a advection sedimentation zone 101, an inclined plate sedimentation zone 102 and a water inlet zone 104, wherein the advection sedimentation zone 101 is positioned at the lower layer of the double-layer sedimentation tank, and the inclined plate sedimentation zone 102 is positioned at the upper layer of the double-layer sedimentation tank, so that an upper layer sedimentation zone and a lower layer sedimentation zone are formed. And the inclined plate sedimentation area 102 is communicated with the advection sedimentation area 101 through a communication area 103, the communication area 103 is arranged close to the side wall of one side of the double-layer sedimentation tank, and the water inlet area 104 is positioned at the side wall of the other side of the double-layer sedimentation tank. Further, the water inlet area 104 is communicated with the advection sedimentation area 101, in the advection sedimentation area 101, the muddy water mixture flows from the end of the water inlet area 104 to the end of the communication area 103, and the water flow direction in the inclined plate sedimentation area 102 is opposite to the water flow direction in the advection sedimentation area 101.
It can be understood that the muddy water enters the advection sedimentation zone 101 from the water inlet zone 104, the large-particle and large-specific-gravity sludge in the muddy water is sedimentated and separated in the advection sedimentation zone 101, the muddy water in the advection sedimentation zone 101 enters the upper inclined plate sedimentation zone 102 from the communication zone 103, and the small-particle and flocculent sludge in the muddy water is separated in the inclined plate sedimentation zone 102. The double-layer sedimentation tank is used for arranging the advection sedimentation zone 101 and the inclined plate sedimentation zone 102 in a layered manner and running in series, so that on one hand, the occupied area is saved, on the other hand, the principle of mud-water separation is combined, large-particle and large-specific-gravity sludge is freely precipitated and separated by utilizing the advection sedimentation zone 101, the sedimentation efficiency of small-particle floccule sludge is improved by utilizing the inclined plate sedimentation zone 102, the surface load of the sedimentation tank is improved, and compared with the advection sedimentation tank or the inclined plate sedimentation tank with only one layer, the sewage treatment capacity can be improved, and the occupied area can be reduced.
The double-layer sedimentation tank comprises a mud scraper 105 and a mud bucket 106, wherein the mud scraper 105 is respectively arranged in the advection sedimentation zone 101 and the inclined plate sedimentation zone 102, and the mud scraper 105 moves at the bottoms of the advection sedimentation zone 101 and the inclined plate sedimentation zone 102 respectively so as to scrape the settled mud. Specifically, the mud scraper 105 scrapes mud along the reverse water flow direction, the mud bucket 106 is arranged at the bottom of the advection sedimentation zone 101, the mud scraper 105 in the inclined plate sedimentation zone 102 scrapes mud to the communication zone 103, and the mud scraper 105 in the advection sedimentation zone 101 scrapes mud to the mud bucket 106. It will be appreciated that the scraper 105 moves at a low speed to avoid disturbing the water flow and reduce the effect on sludge settling.
Referring to the drawings, the double-layer sedimentation tank comprises a laminate, wherein the laminate is horizontally arranged in the double-layer sedimentation tank, and the laminate divides the double-layer sedimentation tank into an upper inclined plate sedimentation zone 102 and a lower advection sedimentation zone 101. Further, a communication area 103 is formed between one end of the laminate and the wall of the double-layer sedimentation tank at intervals.
Regarding the setting of the mud bucket 106, as an alternative, it is also possible to design: the bottom of the advection sedimentation zone 101 and the bottom of the inclined plate sedimentation zone 102 are respectively provided with a mud bucket 106.
The double-layer sedimentation tank comprises a driving component, the driving component is arranged at the top of the double-layer sedimentation tank and comprises a transmission chain and a motor, the motor is arranged at the top of the tank wall of the double-layer sedimentation tank, and the driving component drives the inclined plate sedimentation zone 102 and the mud scraper 105 in the parallel flow sedimentation zone 101 to move through the transmission chain. Further, the sludge scrapers 105 in the inclined plate sedimentation zone 102 and the flat flow sedimentation zone 101 share a set of driving components and a driving chain, specifically, the driving chain extends to the inclined plate sedimentation zone 102 and the flat flow sedimentation zone 101, and connects the sludge scrapers 105 of the upper and lower layers in sequence. Or the inclined plate sedimentation zone 102 and the mud scrapers 105 in the parallel flow sedimentation zone 101 are respectively provided with a driving assembly and a transmission chain, and the two mud scrapers 105 respectively and independently operate.
Further, the sludge scraper 105 in the inclined plate sedimentation zone 102 and the parallel flow sedimentation zone 101 operates in a relay manner, and when the upper sludge scraper 105 moves in the reverse water flow direction, sludge is scraped and deposited gradually, the deposited sludge falls from the communication zone 103, and the lower sludge moves the fallen sludge and the sludge settled in the parallel flow sedimentation zone 101 to the sludge bucket 106 in the reverse water flow direction, so that the sludge is scraped to the sludge bucket 106.
The water inlet area 104 is provided with a water inlet pipe, mud-water mixed liquor from a biochemical system enters the water inlet area 104 from the water inlet pipe, a water distribution wall 107 is arranged on the side wall between the water inlet area 104 and the advection sedimentation area 101, mud water enters the advection sedimentation area 101 through the water distribution wall 107, mud-water separation is achieved in the advection sedimentation area 101 by utilizing sludge self-weight sedimentation, and settled sludge is scraped to a mud bucket 106 by a mud scraper 105.
The inclined plate sedimentation area 102 is provided with at least two inclined plates, and the inclined plates are obliquely arranged in the inclined plate sedimentation area 102 to form an opposite flow. Specifically, the inclined plates are arranged in parallel, the length of each inclined plate is 100-120 cm, and the distance between every two adjacent inclined plates is 8-10 cm. It can be appreciated that the shallow pool principle is utilized in the inclined plate sedimentation zone 102 to improve the sedimentation efficiency of suspended matters in the muddy water and enhance the muddy water separation effect.
The inclined plate sedimentation area 102 is provided with a flow guide baffle plate, the flow guide baffle plate is positioned at one end of the inclined plate sedimentation area 102 close to the communication area 103, and after the muddy water at the lower layer enters the inclined plate sedimentation area 102 from the communication area 103, the flow guide baffle plate guides the mixed liquid to enter the inclined plate sedimentation area 102 at the lower part of the inclined plate.
Regarding the inclined plate sedimentation zone 102, it is also possible to design the equivalent: the inclined plate is replaced by an inclined tube.
The double-layer sedimentation tank comprises a water outlet area, the water outlet area is arranged above the inclined plate sedimentation area 102, and the supernatant separated by the inclined plate sedimentation area 102 is discharged from the water outlet area. Specifically, the water outlet area includes a water outlet total groove 108 and at least two water outlet branch grooves 109, and each water outlet branch groove 109 merges into the water outlet total groove 108. With reference to the drawings, the water outlet branch grooves 109 are respectively arranged corresponding to the gaps formed by two adjacent inclined plates to ensure the water draining capability, the water outlet main groove 108 is positioned in the middle of the water outlet area, and a plurality of water outlet branch grooves 109 are respectively arranged at two sides of the water outlet main groove 108.
Further, the water outlet area includes a water discharge channel 110, and the water outlet main tank 108 is connected to the water discharge channel 110, and a water outlet pipe is connected to the water discharge channel 110 for discharging the supernatant.
Referring to the drawings, the sludge hopper 106 is provided with a sludge discharge pipe, and sludge obtained by sedimentation in the double-layered sedimentation tank is accumulated in the sludge hopper 106 and discharged from the sludge discharge pipe.
The application relates to a sewage treatment method, which is implemented by adopting a double-layer sedimentation tank, wherein sewage enters a horizontal sedimentation zone 101 at the lower layer from a water inlet zone 104, a mud scraper 105 in the horizontal sedimentation zone 101 moves to scrape mud along the reverse water flow direction, the sewage enters an inclined plate sedimentation zone 102 at the upper layer from a communication zone 103, and the mud scraper 105 of the inclined plate sedimentation zone 102 moves to scrape mud along the reverse water flow direction.
In the description of the present specification, if a description appears that makes reference to the term "one embodiment," "some examples," "some embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples," etc., it is intended that the particular feature, structure, material, or characteristic described in connection with the embodiment or example be included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present application.
In the description of the present application, the terms "and" if used in the singular are intended to mean "and" as opposed to "or". For example, the patent name "a A, B" describes that what is claimed in the present application is: a technical scheme with a subject name A and a technical scheme with a subject name B.
Claims (10)
1. A double-deck sedimentation tank, characterized by comprising:
the advection sedimentation zone (101), the advection sedimentation zone (101) is positioned at the lower layer of the double-layer sedimentation tank;
The inclined plate sedimentation zone (102), the inclined plate sedimentation zone (102) is positioned at the upper layer of the double-layer sedimentation tank, the inclined plate sedimentation zone (102) is provided with at least two mutually parallel inclined plates, the inclined plates are obliquely arranged in the inclined plate sedimentation zone (102), the inclined plate sedimentation zone (102) is communicated with the advection sedimentation zone (101) through a communication zone (103), and the communication zone (103) is arranged close to the side wall of one side of the double-layer sedimentation tank;
The water inlet area (104) is positioned at the side wall of the other side of the double-layer sedimentation tank, the water inlet area (104) is communicated with the advection sedimentation area (101), in the advection sedimentation area (101), mud-water mixed liquid flows from the end of the water inlet area (104) to the end of the communication area (103), and the water flow direction in the inclined plate sedimentation area (102) is opposite to the water flow direction in the advection sedimentation area (101);
The mud scraper (105) is respectively arranged in the advection sedimentation zone (101) and the inclined plate sedimentation zone (102), and the mud scraper (105) scrapes mud along the reverse water flow direction;
The mud bucket (106) is arranged at the bottom of the advection sedimentation zone (101);
The sludge is scraped to the communication area (103) by the sludge scraper (105) in the inclined plate sedimentation area (102), and is scraped to the mud bucket (106) by the sludge scraper (105) in the advection sedimentation area (101).
2. The double-layer sedimentation tank of claim 1, wherein: the side wall between the water inlet area (104) and the advection sedimentation area (101) is provided with a water distribution wall (107).
3. The double-layer sedimentation tank of claim 1, wherein: the double-layer sedimentation tank comprises a layer plate, and the layer plate divides the double-layer sedimentation tank into an upper inclined plate sedimentation zone (102) and a lower advection sedimentation zone (101).
4. The double-layer sedimentation tank of claim 1, wherein: the double-layer sedimentation tank comprises a driving assembly, the driving assembly is arranged at the top of the double-layer sedimentation tank, and the driving assembly drives the inclined plate sedimentation zone (102) and the mud scraper (105) in the advection sedimentation zone (101) to move through a transmission chain.
5. The double-layer sedimentation tank of claim 4, wherein: the inclined plate sedimentation zone (102) and the mud scraper (105) in the advection sedimentation zone (101) share a set of the driving assembly and a transmission chain.
6. The double-layer sedimentation tank of claim 1, wherein: the double-layer sedimentation tank comprises a water outlet area, and the water outlet area is arranged above the inclined plate sedimentation area (102).
7. The double-layer sedimentation tank of claim 6, wherein: the water outlet area comprises a water outlet total groove (108) and at least two water outlet branch grooves (109), and all the water outlet branch grooves (109) are converged to the water outlet total groove (108).
8. The double-layer sedimentation tank of claim 1, wherein: the inclined plate sedimentation zone (102) is provided with a flow guide baffle, and the flow guide baffle is positioned at one end of the inclined plate sedimentation zone (102) close to the communication zone (103).
9. The double-layer sedimentation tank of claim 1, wherein: the length of the inclined plate arranged in the inclined plate sedimentation zone (102) is 100-120 cm, and the distance between the adjacent inclined plates is 8-10 cm.
10. The double-layer sedimentation tank of claim 1, wherein: a scraper is attached to the mud scraper (105), and the scraper is in an upright state when the mud scraper (105) runs along the reverse water flow direction; the scraper blade is in a horizontal state when the mud scraper (105) moves along the water flow direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202323124522.6U CN221155502U (en) | 2023-11-17 | 2023-11-17 | Double-layer sedimentation tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202323124522.6U CN221155502U (en) | 2023-11-17 | 2023-11-17 | Double-layer sedimentation tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117504374A (en) * | 2023-11-17 | 2024-02-06 | 广东首汇蓝天工程科技有限公司 | A double-layer sedimentation tank and sewage treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117504374A (en) * | 2023-11-17 | 2024-02-06 | 广东首汇蓝天工程科技有限公司 | A double-layer sedimentation tank and sewage treatment method |
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