CN212198936U - Three-phase separator - Google Patents
Three-phase separator Download PDFInfo
- Publication number
- CN212198936U CN212198936U CN202020543289.2U CN202020543289U CN212198936U CN 212198936 U CN212198936 U CN 212198936U CN 202020543289 U CN202020543289 U CN 202020543289U CN 212198936 U CN212198936 U CN 212198936U
- Authority
- CN
- China
- Prior art keywords
- gas
- treatment unit
- water treatment
- sewage
- phase separator
- 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
Images
Landscapes
- Sewage (AREA)
Abstract
The utility model relates to a three-phase separator, which is used for being installed in a first water treatment unit and comprises a shell and a gas collecting cover, wherein a settling zone is arranged in the shell; the gas-collecting hood is arranged at the outer side of the bottom of the shell; an overflow port communicated with the settling zone is arranged between the gas-collecting hood and the bottom of the shell, and the gas-collecting hood is used for blocking and collecting gas in sewage in the process that the sewage flows through the gas-collecting hood from bottom to top; the overflow port is used for allowing residual sludge-water mixture in the sewage to flow into the settling area for sludge-water separation, and for allowing sludge separated in the settling area to flow downwards to the outside of the shell. The three-phase separator can realize the separation of gas, water and sludge in sewage and realize the cyclic utilization of sludge, thereby saving the power consumption of a sedimentation tank and sludge backflow, simplifying the process flow, reducing the floor area of treatment facilities and greatly reducing the investment and the operation cost of the treatment facilities.
Description
Technical Field
The utility model relates to a sewage treatment technical field especially relates to a three-phase separator.
Background
In the traditional activated sludge method, the biochemical treatment and the sludge sedimentation of the sewage are separately carried out in different biochemical tanks and sedimentation tanks, and in order to ensure a certain sludge concentration, a large amount of backflow must be carried out to ensure that the sludge obtained by sedimentation in the sedimentation tank flows back to the biochemical tank through a backflow facility to participate in the biochemical reaction again.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a three-phase separator which can realize unpowered automatic return of sludge in the first water treatment unit and reduce the floor space of the treatment facility.
A three-phase separator for installation in a first water treatment unit for biochemical treatment of contained sewage, comprising:
the device comprises a shell, wherein a settling zone is arranged in the shell; and
the gas collecting hood is arranged on the outer side of the bottom of the shell; an overflow port communicated with the settling zone is arranged between the gas collecting hood and the bottom of the shell, and the gas collecting hood is used for blocking and collecting gas in the sewage in the process that the sewage flows through the gas collecting hood from bottom to top; the overflowing port is used for enabling the residual sludge-water mixture in the sewage to flow into the settling area for sludge-water separation, and enabling the sludge separated in the settling area to flow downwards to the outside of the shell.
In one embodiment, the air collecting hood and two sides of the bottom of the shell are provided with the overflowing openings therebetween.
In one embodiment, the gas collecting hood further comprises a gas stripping assembly which is connected to the gas collecting hood, the gas stripping assembly can extend out to an inner space of the first water treatment unit not located in the three-phase separator, and/or to a second water treatment unit external to the first water treatment unit, the gas stripping assembly for exhausting gas collected by the gas-collecting hood and derived from the first and second portions of the wastewater, and the gas stripping action of the gas is used for driving the residual muddy water mixture in the second part of the sewage to be transmitted to the first water treatment unit and/or the second water treatment unit, the overflowing port is used for allowing a residual sludge-water mixture in the first part of the sewage to flow into the settling area for sludge-water separation, and the first part of the sewage and the second part of the sewage are both derived from the sewage in the first water treatment unit.
In one embodiment, the stripping assembly comprises:
one end of the exhaust pipe is connected with the gas collecting hood, and the other end of the exhaust pipe penetrates through the bottom of the shell, extends into the shell and then extends to the top of the shell; and
the backflow unit is contained in the shell and can extend out of the inner space where the first water treatment unit is located but not the three-phase separator and/or be connected to the second water treatment unit, the exhaust pipe is used for discharging the gas collected by the gas collecting hood, and the exhaust pipe is further used for driving the second part of residual muddy water mixture in the sewage to be transmitted to the first water treatment unit and/or the second water treatment unit through the gas stripping effect of the gas.
In one embodiment, the top of the gas collecting hood is provided with a through hole, the exhaust pipe is arranged at the through hole, and the gas collected by the gas collecting hood and the residual muddy water mixture in the second part of the sewage can enter the exhaust pipe through the through hole.
In one embodiment, the backflow unit penetrates through two opposite sides of the exhaust pipe and is connected between two opposite inner side walls of the shell, and an air outlet channel for discharging air in the exhaust pipe is arranged between the backflow unit and the inner walls of the exhaust pipe.
In one embodiment, the backflow unit is provided with a first connector, the first connector is arranged on the outer side wall of the shell, the first connector can extend out of the inner space of the first water treatment unit, which is not located in the three-phase separator, or is connected to the second water treatment unit, and the muddy water mixture output by the backflow unit is transmitted to the first water treatment unit or the second water treatment unit.
In one embodiment, the backflow unit further comprises a second connector, the second connector is arranged on the other opposite outer side wall of the shell, and the second connector can extend out of the inner space of the first water treatment unit, where the three-phase separator is not located, or is connected to the second water treatment unit, and is used for transmitting the mud-water mixture output by the backflow unit to the first water treatment unit or the second water treatment unit.
In one embodiment, the bottom of the housing is provided with a groove, and the gas collecting channel is arranged at the groove.
In one embodiment, the system further comprises an effluent weir, wherein the effluent weir is arranged in the sedimentation zone.
When the three-phase separator is integrated in the first water treatment unit, sewage can carry out biochemical reaction in the inner space of the first water treatment unit where the non-three-phase separator is located, when the sewage flows through the three-phase separator from bottom to top, the gas collecting hood can pre-block and collect gas in the sewage in the process that the sewage flows through the gas collecting hood from bottom to top, the residual mud-water mixture in the sewage can flow into the settling zone in the shell through the flow port to carry out mud-water separation, after the residual mud-water mixture in the sewage is fully settled in the settling zone, the sludge separated in the settling zone can gradually flow downwards through the gravity of the sludge, flows out of the shell through the flow port and finally falls back to the bottom of the first water treatment unit to participate in the biochemical reaction again, so the three-phase separator can realize the separation of the gas, the water body and the sludge in the sewage, and can realize the cyclic utilization of the sludge at the same time, thereby saving the power consumption of the sedimentation tank and the sludge backflow, simplifying the process flow, reducing the occupied area of the treatment facility and greatly reducing the investment and the operation cost of the treatment facility.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a three-phase separator according to an embodiment;
FIG. 2 is a schematic cross-sectional view of the three-phase separator of FIG. 1;
fig. 3 is a schematic structural view of the three-phase separator shown in fig. 1 from another perspective.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, an embodiment of the present invention provides a three-phase separator 10, where the three-phase separator 10 is installed in a first water treatment unit, and the first water treatment unit is used for performing biochemical treatment on accommodated sewage. The three-phase separator 10 comprises a shell 100 and a gas collecting hood 200, wherein a settling zone 110 is arranged in the shell 100; the gas-collecting channel 200 is arranged at the outer side of the bottom of the shell 100; an overflowing opening 120 communicated with the settling zone 110 is arranged between the gas collecting hood 200 and the bottom of the shell 100, and the gas collecting hood 200 is used for blocking and collecting gas in sewage in the process that the sewage flows through the gas collecting hood 200 from bottom to top; the overflow port 120 is used for allowing the sludge-water mixture remaining in the sewage to flow into the settling zone 110 for sludge-water separation, and for allowing the sludge separated in the settling zone 110 to flow down to the outside of the housing 100.
In one embodiment, the gas collecting channel 200 is provided with a flow through opening 120 between the gas collecting channel 200 and two sides of the bottom of the housing 100. In one embodiment, the flow openings 120 disposed between the gas collecting channel 200 and each side of the bottom of the housing 100 include a plurality of spaced apart sub-flow openings.
As shown in fig. 1, in this embodiment, the flow-through opening 120 disposed between the gas collecting channel 200 and each side of the bottom of the housing 100 includes a first sub flow-through opening 122, a second sub flow-through opening 124, and a third sub flow-through opening 126 disposed at intervals, the second sub flow-through opening 124 is disposed between the first sub flow-through opening 122 and the third sub flow-through opening 126, the first sub flow-through opening 122, the second sub flow-through opening 124, and the third sub flow-through opening 126 are all rectangular openings, the opening length of the first sub flow-through opening 122 is equal to the opening length of the third sub flow-through opening 126, and the opening length of the second sub flow-through opening 124 is greater than the opening length of the first sub flow-through opening 122 and the opening length of the third sub flow-through opening 126.
In an embodiment, the gas collecting channel 200 can be, but is not limited to, an inverted V-shaped structure, further, the bottom of the casing 100 is provided with a groove 130, and the gas collecting channel 200 is disposed at the groove 130. In one embodiment, the shape of the groove 130 matches the shape of the gas collecting channel 200, so that the housing 100 and the gas collecting channel 200 can be better assembled into a whole. Specifically, in the present embodiment, the groove 130 is an inverted V-shaped groove.
In the present embodiment, the housing 100 and the gas collecting channel 200 are separately provided, and it is understood that in other embodiments, the housing 100 and the gas collecting channel 200 may be integrally formed.
As shown in fig. 1, in one embodiment, the three-phase separator 10 further comprises a gas stripping assembly 300, wherein the gas stripping assembly 300 is connected to the gas collecting hood 200, the gas stripping assembly 300 can be extended to the inner space of the first water treatment unit located in the non-three-phase separator 10, and/or to a second water treatment unit located outside the first water treatment unit, gas stripping assembly 300 is used to expel the gases collected by gas collection hood 200 and derived from the first portion and the second portion of the wastewater, and the overflow port 120 is used for allowing the residual sludge-water mixture in the first part of sewage to flow into the settling zone 110 for sludge-water separation, and the first part of sewage and the second part of sewage are both derived from the sewage in the first water treatment unit.
Specifically, the gas collecting hood can collect the gas in the first part of the sewage and the second part of the sewage, and the gas can be discharged through the gas stripping assembly 300, and at the same time, the gas stripping assembly 300 can drive the residual sludge-water mixture in the second part of the sewage to be conveyed to the first water treatment unit and/or the second water treatment unit through the gas stripping action of the gas; therefore, through the arrangement of the gas stripping assembly 300, on one hand, the gas collected by the gas collecting hood 200 can be discharged in time, the capability of the gas collecting hood 200 for continuously collecting the gas in the sewage is ensured, and simultaneously, a part of the muddy water mixture separated by the three-phase separator 10 can form unpowered backflow through the gas stripping action in the first water treatment unit and/or between the first water treatment unit and the second water treatment unit, so that a user does not need to arrange a backflow facility to return the part of the muddy water mixture separated by the three-phase separator 10 to the first water treatment unit and/or the second water treatment unit, the process flow is effectively simplified, the power cost is saved, and the power consumption is reduced.
As shown in fig. 1 and 2, in an embodiment, the stripping assembly 300 includes an exhaust pipe 310 and a backflow unit 320, one end of the exhaust pipe 310 is connected to the gas collecting channel 200, and the other end of the exhaust pipe 310 extends into the casing 100 through the bottom of the casing 100 and then extends to the top of the casing 100; the backflow unit 320 is accommodated in the housing 100, the backflow unit 320 can extend out to an inner space where the first water treatment unit is located in the non-three-phase separator 10 and/or is connected to a second water treatment unit, the exhaust pipe 310 is used for discharging gas collected by the gas collecting hood 200, and the exhaust pipe 310 is further used for driving residual sludge-water mixture in the second part of sewage to be transmitted to the first water treatment unit and/or the second water treatment unit through the backflow unit 320 by gas stripping action of the gas.
In the present embodiment, the exhaust pipe 310 is disposed at the center of the gas collecting hood 200, further, the top of the gas collecting hood 200 is provided with a through hole 210, the exhaust pipe 310 is disposed at the through hole 210, and the gas collected by the gas collecting hood 200 together with the residual muddy water mixture in the second portion of the polluted water can enter the exhaust pipe 310 through the through hole 210.
Further, the backflow unit 320 passes through two opposite sides of the exhaust pipe 310 and is connected between two opposite inner sidewalls of the casing 100, and an air outlet channel 330 for discharging air in the exhaust pipe 310 is disposed between the backflow unit 320 and the inner walls of the exhaust pipe 310.
In an embodiment, the backflow unit 320 is a square tube structure with a closed periphery, an inlet 322 is disposed on a sidewall of the backflow unit 320, and the exhaust pipe 310 can drive the remaining sludge-water mixture in the second portion of sewage to enter the backflow unit 320 through the inlet 322 by a gas stripping action of the gas.
As shown in fig. 3, further, the backflow unit 320 has a first connector 324, the first connector 324 is disposed on an outer sidewall of the housing 100, and the first connector 324 can extend out to an internal space of the first water treatment unit, which is not located in the three-phase separator 10, or be connected to a second water treatment unit, and is used for transmitting the mud-water mixture output by the backflow unit 320 to the first water treatment unit and/or the second water treatment unit.
As shown in fig. 1, the backflow unit 320 further includes a second joint 326, the second joint 326 is disposed on the other opposite outer sidewall of the housing 100, and the second joint 326 can extend out to an internal space of the first water treatment unit, where the first water treatment unit is not located in the three-phase separator 10, or is connected to a second water treatment unit, and is used for providing the muddy water mixture output by the backflow unit 320 to the first water treatment unit/or the second water treatment unit.
In one embodiment, as shown in fig. 3, the three-phase separator 10 further comprises an effluent weir 400, the effluent weir 400 is disposed in the settling zone 110, and the effluent weir 400 is used for adjusting the height of the water level in the settling zone 110 of the three-phase separator 10 to ensure that the effluent flow in the settling zone 110 of the three-phase separator 10 is uniform. In this embodiment, the weir 400 is disposed between two opposite inner sidewalls of the housing 100, and the weir 400 includes a plurality of weirs 400 disposed at two sides of the backflow unit 320.
Further, as shown in fig. 3, in an embodiment, the weir 400 may be, but is not limited to, a closed square-tube structure, and water inlets 410 are disposed at two sides of the weir 400, and the water inlets 410 are used for allowing the water separated in the settling zone 110 to flow into the weir 400. In an embodiment, the water outlet weir 400 has a water outlet 420, the water outlet 420 is disposed on an outer sidewall of the housing 100, and the water outlet 420 is used for allowing the water in the water outlet weir 400 to flow out of the housing 100.
In an embodiment, the three-phase separator 10 further includes a reinforcing rib 500, and the reinforcing rib 500 is disposed between two opposite inner sidewalls of the gas collecting channel 200 to enhance the structural strength of the three-phase separator 10.
When the three-phase separator 10 is integrated into the first water treatment unit, the sewage can perform biochemical reaction in the internal space of the first water treatment unit where the non-three-phase separator 10 is located, when the sewage flows through the three-phase separator 10 from bottom to top, the gas collecting hood 200 can pre-block and collect the gas in the sewage in the process that the sewage flows through the gas collecting hood 200 from bottom to top, the residual sludge-water mixture in the sewage can flow into the settling zone 110 in the housing 100 through the flow port 120 to perform sludge-water separation, after the residual sludge-water mixture in the sewage is fully settled in the settling zone 110, the sludge separated in the settling zone 110 can gradually flow downwards through the gravity of the sludge, and flows out of the housing 100 through the flow port and finally falls back to the bottom of the first water treatment unit to participate in the biochemical reaction again, so that the three-phase separator 10 can realize the biochemical reaction on the gas in the sewage, The separation between the three phases of the water body and the sludge can be realized, and the sludge can be recycled, so that the power consumption of a sedimentation tank and the sludge backflow is saved, the process flow is simplified, the floor area of a treatment facility is reduced, and the investment and the operation cost of the treatment facility are greatly reduced.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A three-phase separator for installation in a first water treatment unit for biochemical treatment of contained wastewater, comprising:
the device comprises a shell, wherein a settling zone is arranged in the shell; and
the gas collecting hood is arranged on the outer side of the bottom of the shell; an overflow port communicated with the settling zone is arranged between the gas collecting hood and the bottom of the shell, and the gas collecting hood is used for blocking and collecting gas in the sewage in the process that the sewage flows through the gas collecting hood from bottom to top; the overflowing port is used for enabling the residual sludge-water mixture in the sewage to flow into the settling area for sludge-water separation, and enabling the sludge separated in the settling area to flow downwards to the outside of the shell.
2. The three-phase separator according to claim 1, wherein the flow-through openings are provided between the gas-collecting hood and both sides of the bottom of the housing.
3. The three-phase separator according to claim 1, further comprising a gas stripping assembly connected to the gas-collecting hood, wherein the gas stripping assembly can extend out to an internal space where the first water treatment unit is not located, and/or is connected to a second water treatment unit located outside the first water treatment unit, the gas stripping assembly is used for discharging gas collected by the gas-collecting hood and derived from the first part and the second part of sewage, and is used for driving a muddy water mixture remaining in the second part of sewage to be conveyed to the first water treatment unit and/or the second water treatment unit through the gas stripping effect of the gas, the overflow port is used for allowing the muddy water mixture remaining in the first part of sewage to flow into the settling zone for muddy water separation, and the first part of sewage and the second part of sewage are both derived from the first water treatment unit The wastewater of (2).
4. The three-phase separator of claim 3, wherein the stripping assembly comprises:
one end of the exhaust pipe is connected with the gas collecting hood, and the other end of the exhaust pipe penetrates through the bottom of the shell, extends into the shell and then extends to the top of the shell; and
the backflow unit is contained in the shell and can extend out of the inner space where the first water treatment unit is located but not the three-phase separator and/or be connected to the second water treatment unit, the exhaust pipe is used for discharging the gas collected by the gas collecting hood, and the exhaust pipe is further used for driving the second part of residual muddy water mixture in the sewage to be transmitted to the first water treatment unit and/or the second water treatment unit through the gas stripping effect of the gas.
5. The three-phase separator according to claim 4, wherein the top of the gas collecting hood is provided with a through hole, the exhaust pipe is provided at the through hole, and the gas collected by the gas collecting hood together with the remaining muddy water mixture in the second portion of the polluted water can enter the exhaust pipe through the through hole.
6. The three-phase separator according to claim 4, wherein the backflow unit passes through two opposite sides of the exhaust pipe and is connected between two opposite inner side walls of the housing, and an air outlet channel for discharging air in the exhaust pipe is arranged between the backflow unit and the inner side walls of the exhaust pipe.
7. The three-phase separator according to claim 4, wherein the backflow unit has a first connector disposed on an outer sidewall of the housing, the first connector being capable of protruding to an inner space of the first water treatment unit not located in the three-phase separator or being connected to the second water treatment unit, and being used for transmitting the mud-water mixture output by the backflow unit to the first water treatment unit or the second water treatment unit.
8. The three-phase separator according to claim 7, wherein the backflow unit further comprises a second connector disposed on the other outer sidewall opposite to the housing, the second connector being capable of protruding to an internal space of the first water treatment unit not located in the three-phase separator or being connected to the second water treatment unit, and being used for transmitting the mud-water mixture output by the backflow unit to the first water treatment unit or the second water treatment unit.
9. The separator of claim 1, wherein the bottom of the housing is provided with a groove, and the gas collecting channel is provided at the groove.
10. The three-phase separator of claim 1, further comprising an effluent weir disposed within the settling zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020543289.2U CN212198936U (en) | 2020-04-13 | 2020-04-13 | Three-phase separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020543289.2U CN212198936U (en) | 2020-04-13 | 2020-04-13 | Three-phase separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212198936U true CN212198936U (en) | 2020-12-22 |
Family
ID=73833980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020543289.2U Active CN212198936U (en) | 2020-04-13 | 2020-04-13 | Three-phase separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212198936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023123992A1 (en) * | 2021-12-31 | 2023-07-06 | 南京万德斯环保科技股份有限公司 | High-efficiency skid-mounted three-phase separator in high-load anaerobic system |
-
2020
- 2020-04-13 CN CN202020543289.2U patent/CN212198936U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023123992A1 (en) * | 2021-12-31 | 2023-07-06 | 南京万德斯环保科技股份有限公司 | High-efficiency skid-mounted three-phase separator in high-load anaerobic system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201906487U (en) | Three-phase separator for sewage treatment | |
| CN212198936U (en) | Three-phase separator | |
| CN109499145A (en) | A kind of efficient device for removing dirty impurities in water | |
| CN213231667U (en) | Three-phase separator and sewage treatment device | |
| CN205556208U (en) | Baffling formula lacks aerobic reaction ware | |
| CN209464687U (en) | A kind of efficient device for removing dirty impurities in water | |
| CN207158893U (en) | Plug-flow, which declines, exposes aerobic reactor | |
| CN210559578U (en) | Novel desulfurization waste water treatment device | |
| CN218435206U (en) | Three-phase separator and sewage treatment device | |
| CN210635794U (en) | Sewage treatment device | |
| CN215855671U (en) | Integrative equipment of tubular sewage treatment | |
| CN211688554U (en) | Three-phase separator and sewage treatment device | |
| CN201406347Y (en) | Integrated multifunctional three-dimensional circulation oxidation ditch equipment | |
| CN211394203U (en) | Car washing water filtering and circulating system | |
| CN111170457A (en) | Sewage treatment device and method | |
| CN208440441U (en) | A kind of water process ozone Oxidation Treatment device | |
| CN208829364U (en) | A kind of integrated three phase separator for anaerobic reactor | |
| CN2253346Y (en) | Integral gas-solid-liquid separator module for upspout anaerobic mud bed | |
| CN220012171U (en) | Ground large-scale groundwater treatment water tank and groundwater treatment system | |
| CN214693480U (en) | Aerobic three-phase separation device and sewage treatment module equipment | |
| CN210915502U (en) | Pascal sewage treatment ware | |
| CN101423288A (en) | Lateral precipitation and stereoscopic circulation integrated oxidation ditch equipment and operation method | |
| CN215288288U (en) | A rainwater collection device for chemical enterprise | |
| CN109796090A (en) | A kind of Production of Ceramics sewage disposal system | |
| CN211946342U (en) | Sewage dynamic treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |