CN109133542A - Domestic sewage treatment device - Google Patents
Domestic sewage treatment device Download PDFInfo
- Publication number
- CN109133542A CN109133542A CN201811296744.7A CN201811296744A CN109133542A CN 109133542 A CN109133542 A CN 109133542A CN 201811296744 A CN201811296744 A CN 201811296744A CN 109133542 A CN109133542 A CN 109133542A
- Authority
- CN
- China
- Prior art keywords
- liner
- precipitating
- demarcation plate
- outer cylinder
- hole
- 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.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Biological Wastes In General (AREA)
Abstract
The present invention provides a kind of domestic sewage treatment device, including water inlet pipe, outer cylinder, precipitating liner, outlet pipe and multiple first demarcation plates, it precipitates liner and outer cylinder is arranged and is located in outer cylinder, the barrel of outer cylinder is equipped with first through hole and the second through-hole, water inlet pipe passes through first through hole and is connected to and in communication with the head end for precipitating liner, precipitates closing on the side wall of tail end for liner and is provided with third through-hole to be connected to outer cylinder；Outlet pipe is connected to the second through hole on outer cylinder；First demarcation plate offers a perforation being adapted to the lateral profile of precipitating liner, it is set in multiple first divider plates on the lateral wall of precipitating liner and is provided with sealant between the inner sidewall of the perforation and the lateral wall for precipitating liner, it is tightly connected between the edge of first demarcation plate and the inner sidewall of outer cylinder, close on bottom or the position at top of first demarcation plate offer the first water hole, and the position one of two neighboring first demarcation plate the first water hole of setting closes on bottom and another closes on top.
Description
Technical field
The present invention relates to sewage to manage field, and in particular to a kind of domestic sewage treatment device.
Background technique
Sanitary sewage direct emission can cause very big pollution to environment, in the prior art, typically to sanitary sewage
Just discharged after simply precipitating, debirs therein can cause serious pollution to soil and water body.
Therefore, the prior art is defective, needs to improve.
Summary of the invention
The object of the present invention is to provide a kind of domestic sewage treatment devices, have the degree of purification for improving sanitary sewage disposal
Beneficial effect.
The present invention provides a kind of domestic sewage treatment device, including water inlet pipe, outer cylinder, precipitating liner, outlet pipe and
Multiple first demarcation plates, the precipitating liner and outer cylinder are coaxially disposed and are located in outer cylinder, and the barrel of the outer cylinder is equipped with the
One through-hole and the second through-hole, the water inlet pipe passes through first through hole and the head end of the precipitating liner is connected to and in communication with, described
Closing on the side wall of tail end for liner of precipitating is provided with third through-hole to be connected to the outer cylinder；The outlet pipe is connected to described
The second through hole on outer cylinder；
Offer the perforation that is adapted to of lateral profile of one with the precipitating liner in the middle part of first demarcation plate, the multiple the
It is set in one divider plate on the lateral wall of the precipitating liner and the inner sidewall of the perforation and the precipitating liner
It is provided with sealant between lateral wall, is tightly connected between the edge of first demarcation plate and the inner sidewall of the outer cylinder, institute
Close on bottom or the position at top for stating the first demarcation plate offer the first water hole, and institute is arranged in two neighboring first demarcation plate
Bottom is closed in the position one for stating the first water hole and another closes on top, is provided in the outer cylinder for decomposing organic waste
The microorganism of object.
In domestic sewage treatment device of the present invention, the multiple first demarcation plate by the inner wall of the outer cylinder and
Space between the outer wall of the precipitating liner is divided into multiple sub- chambers being sequentially communicated, and closes on the precipitating in multiple sub- chamber
Multiple sub- chambers of the tail end of liner are the sub- chamber of anaerobism, and the multiple sub- chambers for closing on the head end of the precipitating liner are aerobic sub- chamber, institute
Stating multiple sub- chambers between aerobic sub- chamber and the sub- chamber of the anaerobism is simultaneous oxygen chamber；
Anaerobism is intracavitary to be provided with anaerobe, and described and oxygen chamber is provided with facultative microbe, the aerobic sub- chamber
Inside it is provided with the microorganism that itches.
In domestic sewage treatment device of the present invention, one second demarcation plate is set in the precipitating liner；
Second demarcation plate is rotationally arranged on the inner wall of the precipitating liner by first rotating shaft, and described second separates
Plate and it is described precipitating liner it is axially vertical when, the edge of second demarcation plate with it is described precipitate liner inner wall contact；Institute
The position for closing on top for stating the second demarcation plate is provided with multiple second water holes；
The first operation handle for operating the first rotating shaft rotation is installed on the lateral wall of the outer cylinder.
In domestic sewage treatment device of the present invention, a third demarcation plate is set in the precipitating liner；
The third demarcation plate is rotationally arranged on the inner wall of the precipitating liner by the second shaft and is located at described the
Between two compartment plate and the tail end, the third demarcation plate and the precipitating liner it is axially vertical when, the third separates
The edge of plate is contacted with the inner wall of the precipitating liner, when the third demarcation plate is parallel with the precipitating axial direction of liner, institute
It states third demarcation plate and the third through-hole is covered and sealed；
The central region of the third demarcation plate is provided with multiple third water holes；It is equipped with and is used on the lateral wall of the outer cylinder
Operate the second operation handle of the second shaft rotation.
In domestic sewage treatment device of the present invention, the end of the outer cylinder is provided with opening, in the precipitating
The tail end of gallbladder stretches out in the opening, and is provided with sealing knot between the inner wall of the opening and the outer wall of the precipitating liner
Structure；The end of the precipitating liner is provided with discharge gate.
In domestic sewage treatment device of the present invention, the multiple first demarcation plate includes first kind demarcation plate
And Second Type demarcation plate, the water hole of the first kind demarcation plate close on its top setting, the Second Type separates
The water hole of plate closes on the setting of its bottom, and is provided with solenoid valve at the water hole of the Second Type demarcation plate；Described second
The son towards the precipitating liner tail end side of type demarcation plate is intracavitary to be provided with hydrostatic sensor and controller, the control
Device processed is electrically connected with the solenoid valve, and the controller is used for when the pressure value that the hydrostatic sensor detects is greater than threshold value,
The solenoid valve is controlled to open.
In domestic sewage treatment device of the present invention, the bottom wall in the precipitating liner includes the successively reduced
One step surface, second step face and third step surface, the first rotating shaft are set to the First terrace and second step
The intersection in face；Second shaft is set to the intersection in the second step face Yu the third step surface.
In domestic sewage treatment device of the present invention, collecting methane case, the natural pond are provided at the top of the outer cylinder
Gas collecting box is connected to the sub- chamber of each institute's anaerobism respectively.
In domestic sewage treatment device of the present invention, it is provided with air supplying device at the top of the outer cylinder, it is described
Air supplying device is connected to each aerobic sub- chamber respectively.
The present invention then by the way of microorganism decomposition, can be effectively removed in sanitary sewage by first precipitating
Organic pollutant, and contact area can be improved by the setting of the first demarcation plate and corresponding water hole, further increases
The degree for the treatment of of pollutant.
Detailed description of the invention
Fig. 1 is a kind of structure chart of the domestic sewage treatment device in some embodiments of the invention.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic.
" first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more feature.?
In description of the invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
Please referring to Fig. 1, Fig. 1 is one of some embodiments of the invention domestic sewage treatment device, including water inlet pipe 21,
Outer cylinder 10, precipitating liner 20, outlet pipe 11 and multiple first demarcation plates 30, the precipitating liner 20 are coaxially disposed with outer cylinder 10
And be located in outer cylinder 10, the barrel of the outer cylinder 10 is equipped with first through hole and the second through-hole, and the water inlet pipe 21 passes through the
The head end of one through-hole and the precipitating liner 20 is connected to and in communication with, and the closing on the side wall of tail end for liner 20 of precipitating is provided with
Third through-hole 23 with the outer cylinder 10 to be connected to；The outlet pipe 11 is connected to the second through hole on the outer cylinder 10.
Wherein, the middle part of the first demarcation plate 30 offers a perforation being adapted to the lateral profile of the precipitating liner 20,
The multiple first demarcation plate, 30 compartment of terrain be set in it is described precipitating liner 20 lateral wall on and the inner sidewall of the perforation with
It is provided with sealant between the lateral wall of the precipitating liner 20, the edge of first demarcation plate 30 is interior with the outer cylinder 10
It is tightly connected between side wall, close on bottom or the position at top of first demarcation plate 30 offer the first water hole, and phase
Bottom is closed in the position one that first water hole is arranged in adjacent two the first demarcation plates 30 and another closes on top.The precipitating
Liner 20 is in hollow rectangular-shape, and accordingly, the perforation is also rectangular, and sealant can use sealant.
Wherein, multiple first demarcation plates 30 by the inner wall of the outer cylinder 10 and it is described precipitating liner 20 outer wall between sky
Between be divided into multiple sub- chambers being sequentially communicated, closed in multiple sub- chamber it is described precipitating liner 20 tail end multiple sub- chambers be detest
Oxygen chamber, the multiple sub- chambers for closing on the head end of the precipitating liner 20 are aerobic sub- chamber, the aerobic sub- chamber and anaerobism
Multiple sub- chambers between chamber are simultaneous oxygen chamber；Anaerobism is intracavitary to be provided with anaerobe, and described and oxygen chamber is provided with
Facultative microbe, the aerobic son is intracavitary to be provided with the microorganism that itches.
In some embodiments, one second demarcation plate 40 is set in the precipitating liner 20；Second demarcation plate 40 passes through
First rotating shaft 41 is rotationally arranged on the inner wall of the precipitating liner 20, second demarcation plate and the precipitating liner 20
It is axially vertical when, the edge of second demarcation plate 40 with it is described precipitating liner 20 inner wall contact；Second demarcation plate
40 position for closing on top is provided with multiple second water holes.
In some embodiments, the first operation for operating first rotating shaft rotation 41 is installed on the lateral wall of outer cylinder 10
Handle (not shown go out).
In some embodiments, a third demarcation plate 50 is set in precipitating liner 20；The third demarcation plate 50 passes through the
Two shafts 51 are rotationally arranged on the inner wall of the precipitating liner 20 and are located at second demarcation plate 50 and the tail end
Between, the third demarcation plate 50 and the precipitating liner 20 it is axially vertical when, the edge of the third demarcation plate 50 and institute
The inner wall contact for stating precipitating liner 20, when the third demarcation plate 50 is parallel with the precipitating axial direction of liner 20, the third
The third through-hole 23 is covered and is sealed by demarcation plate 50；The central region of the third demarcation plate is provided with multiple thirds and crosses water
Hole；The second operation handle for operating the second shaft rotation is installed on the lateral wall of the outer cylinder 10.
In domestic sewage treatment device of the present invention, the end of the outer cylinder 10 is provided with opening, the precipitating
The tail end of liner 20 stretches out in the opening, and is provided between the inner wall of the opening and the outer wall of the precipitating liner 20 close
Seal structure；The end of the precipitating liner 20 is provided with discharge gate.When needing discharged waste, then the second operation handle is operated
And first operation handle, so that third demarcation plate 50 and the second demarcation plate 40 are covered on the bottom wall of precipitating liner 20, so
After open the discharge gate, and a large amount of cleaning solutions are passed through in water inlet pipe 21, to realize the waste residue in removal precipitating liner.
In domestic sewage treatment device of the present invention, the multiple first demarcation plate 30 separates including the first kind
Plate and Second Type demarcation plate, the water hole of the first kind demarcation plate close on its top setting, the Second Type point
The water hole of partition closes on the setting of its bottom, and is provided with solenoid valve at the water hole of the Second Type demarcation plate；Described
The son towards the precipitating 20 tail end side of liner of two type demarcation plates is intracavitary to be provided with hydrostatic sensor and controller, institute
It states controller to be electrically connected with the solenoid valve, the pressure value that the controller is used to detect in the hydrostatic sensor is greater than threshold value
When, it controls the solenoid valve and opens.In other words, when only the intracavitary sewage of group is filled or will be full, electromagnetism can just be opened
Valve avoids dead angle, improves contact area.
In domestic sewage treatment device of the present invention, the bottom wall in the precipitating liner 20 includes successively reducing
First terrace 20a, second step face 20b and third step surface 20c, the first rotating shaft are set to the First terrace
With the intersection in second step face；Second shaft is set to the boundary in the second step face Yu the third step surface
Place.
In domestic sewage treatment device of the present invention, collecting methane case 70, institute are provided at the top of the outer cylinder 10
Collecting methane case 70 is stated to be connected to the sub- chamber of each institute's anaerobism respectively.It is described in domestic sewage treatment device of the present invention
Air supplying device 60 is provided at the top of outer cylinder 10, the air supplying device 60 is connected to each aerobic sub- chamber respectively.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the invention.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
Claims (9)
1. a kind of domestic sewage treatment device, which is characterized in that including water inlet pipe, outer cylinder, precipitating liner, outlet pipe and multiple
First demarcation plate, the precipitating liner and outer cylinder are coaxially disposed and are located in outer cylinder, and it is logical that the barrel of the outer cylinder is equipped with first
Hole and the second through-hole, the water inlet pipe passes through first through hole and the head end of the precipitating liner is connected to and in communication with, the precipitating
Closing on the side wall of tail end for liner is provided with third through-hole to be connected to the outer cylinder；The outlet pipe is connected to the outer cylinder
On the second through hole；
Offer the perforation that is adapted to of lateral profile of one with the precipitating liner in the middle part of first demarcation plate, the multiple the
It is set in one divider plate on the lateral wall of the precipitating liner and the inner sidewall of the perforation and the precipitating liner
It is provided with sealant between lateral wall, is tightly connected between the edge of first demarcation plate and the inner sidewall of the outer cylinder, institute
Close on bottom or the position at top for stating the first demarcation plate offer the first water hole, and institute is arranged in two neighboring first demarcation plate
Bottom is closed in the position one for stating the first water hole and another closes on top, is provided in the outer cylinder for decomposing organic waste
The microorganism of object.
2. domestic sewage treatment device according to claim 1, which is characterized in that the multiple first demarcation plate will be described
Space between the inner wall of outer cylinder and the outer wall of the precipitating liner is divided into multiple sub- chambers being sequentially communicated, in multiple sub- chamber
The multiple sub- chambers for closing on the tail end of the precipitating liner are the sub- chamber of anaerobism, and the multiple sub- chambers for closing on the head end of the precipitating liner are
Aerobic sub- chamber, multiple sub- chambers between the aerobic sub- chamber and the sub- chamber of the anaerobism are simultaneous oxygen chamber；
Anaerobism is intracavitary to be provided with anaerobe, and described and oxygen chamber is provided with facultative microbe, the aerobic sub- chamber
Inside it is provided with the microorganism that itches.
3. domestic sewage treatment device according to claim 1, which is characterized in that setting one second in the precipitating liner
Demarcation plate；
Second demarcation plate is rotationally arranged on the inner wall of the precipitating liner by first rotating shaft, and described second separates
Plate and it is described precipitating liner it is axially vertical when, the edge of second demarcation plate with it is described precipitate liner inner wall contact；Institute
The position for closing on top for stating the second demarcation plate is provided with multiple second water holes；
The first operation handle for operating the first rotating shaft rotation is installed on the lateral wall of the outer cylinder.
4. domestic sewage treatment device according to claim 3, which is characterized in that a third is arranged in the precipitating liner
Demarcation plate；
The third demarcation plate is rotationally arranged on the inner wall of the precipitating liner by the second shaft and is located at described the
Between two compartment plate and the tail end, the third demarcation plate and the precipitating liner it is axially vertical when, the third separates
The edge of plate is contacted with the inner wall of the precipitating liner, when the third demarcation plate is parallel with the precipitating axial direction of liner, institute
It states third demarcation plate and the third through-hole is covered and sealed；
The central region of the third demarcation plate is provided with multiple third water holes；It is equipped with and is used on the lateral wall of the outer cylinder
Operate the second operation handle of the second shaft rotation.
5. domestic sewage treatment device according to claim 4, which is characterized in that the end of the outer cylinder is provided with out
Mouthful, the tail end of the precipitating liner stretches out in the opening, and between the inner wall of the opening and the outer wall of the precipitating liner
It is provided with sealing structure；The end of the precipitating liner is provided with discharge gate.
6. domestic sewage treatment device according to claim 1, which is characterized in that the multiple first demarcation plate includes the
One type demarcation plate and Second Type demarcation plate, the water hole of the first kind demarcation plate closes on its top setting, described
The water hole of Second Type demarcation plate closes on the setting of its bottom, and is provided with electromagnetism at the water hole of the Second Type demarcation plate
Valve；The son towards the precipitating liner tail end side of the Second Type demarcation plate is intracavitary to be provided with hydrostatic sensor and control
Device processed, the controller are electrically connected with the solenoid valve, and the controller is used for the pressure value detected in the hydrostatic sensor
When greater than threshold value, controls the solenoid valve and open.
7. domestic sewage treatment device according to claim 3, which is characterized in that it is described precipitating liner in bottom wall include
First terrace, second step face and the third step surface successively reduced, the first rotating shaft are set to the first step
The intersection in face and second step face；Second shaft is set to the boundary in the second step face Yu the third step surface
Place.
8. domestic sewage treatment device according to claim 2, which is characterized in that be provided with biogas receipts at the top of the outer cylinder
Header, the collecting methane case are connected to the sub- chamber of each institute's anaerobism respectively.
9. domestic sewage treatment device according to claim 8, which is characterized in that be provided with air at the top of the outer cylinder and mention
For device, the air supplying device is connected to each aerobic sub- chamber respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296744.7A CN109133542A (en) | 2018-11-01 | 2018-11-01 | Domestic sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296744.7A CN109133542A (en) | 2018-11-01 | 2018-11-01 | Domestic sewage treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109133542A true CN109133542A (en) | 2019-01-04 |
Family
ID=64807216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811296744.7A Pending CN109133542A (en) | 2018-11-01 | 2018-11-01 | Domestic sewage treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109133542A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109364650A (en) * | 2018-11-23 | 2019-02-22 | 董佑军 | A kind of cleaning environmental protecting device of the rubbish for building engineering construction clearance of site waste material |
| CN113461118A (en) * | 2021-07-30 | 2021-10-01 | 乐山师范学院 | Sewage reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991016270A1 (en) * | 1990-04-24 | 1991-10-31 | Alistair James Mcdonald | Process and apparatus for biological treatment of effluent |
| KR100798349B1 (en) * | 2007-06-14 | 2008-01-28 | 구제진 | Organic waste treatment apparatus |
| CN105129992A (en) * | 2015-10-09 | 2015-12-09 | 农业部沼气科学研究所 | Transverse-spiral-flow type domestic sewage purifying device |
| CN205133375U (en) * | 2015-09-21 | 2016-04-06 | 深圳市锐富恒玻璃钢科技有限公司 | Glass -tampered manure pit |
| CN206214903U (en) * | 2016-10-26 | 2017-06-06 | 河源市百美食品科技有限公司 | A kind of dregs and liquor separation device |
| CN206720992U (en) * | 2017-05-09 | 2017-12-08 | 周改玲 | A kind of aquaculture wastewater treating stations |
-
2018
- 2018-11-01 CN CN201811296744.7A patent/CN109133542A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991016270A1 (en) * | 1990-04-24 | 1991-10-31 | Alistair James Mcdonald | Process and apparatus for biological treatment of effluent |
| KR100798349B1 (en) * | 2007-06-14 | 2008-01-28 | 구제진 | Organic waste treatment apparatus |
| CN205133375U (en) * | 2015-09-21 | 2016-04-06 | 深圳市锐富恒玻璃钢科技有限公司 | Glass -tampered manure pit |
| CN105129992A (en) * | 2015-10-09 | 2015-12-09 | 农业部沼气科学研究所 | Transverse-spiral-flow type domestic sewage purifying device |
| CN206214903U (en) * | 2016-10-26 | 2017-06-06 | 河源市百美食品科技有限公司 | A kind of dregs and liquor separation device |
| CN206720992U (en) * | 2017-05-09 | 2017-12-08 | 周改玲 | A kind of aquaculture wastewater treating stations |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109364650A (en) * | 2018-11-23 | 2019-02-22 | 董佑军 | A kind of cleaning environmental protecting device of the rubbish for building engineering construction clearance of site waste material |
| CN113461118A (en) * | 2021-07-30 | 2021-10-01 | 乐山师范学院 | Sewage reactor |
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