CN107857427A - A kind of detachable sewage-treatment plant - Google Patents
A kind of detachable sewage-treatment plant Download PDFInfo
- Publication number
- CN107857427A CN107857427A CN201711053169.3A CN201711053169A CN107857427A CN 107857427 A CN107857427 A CN 107857427A CN 201711053169 A CN201711053169 A CN 201711053169A CN 107857427 A CN107857427 A CN 107857427A
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- CN
- China
- Prior art keywords
- sewage
- pond
- treatment plant
- waterproof cover
- detachable
- 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.)
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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)
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of detachable sewage-treatment plant, it is related to field of sewage treatment equipment, solving existing equipment, treatment effeciency to be present not high, floor space is larger, the not high technical problem of integrated level, it includes grid room, reflux pump, slush pump and six reaction tanks, six reaction tanks are arranged on inside a kind of detachable sewage-treatment plant, and press regulating reservoir, anaerobic pond, anoxic pond, Aerobic Pond, Ultra filtration membrane unit and sedimentation basin are sequentially connected with, anoxic pond is connected with Aerobic Pond, the pond face of six reaction tanks is on-gauge plate, on-gauge plate passes through connector detachable connection, regulating reservoir top is provided with water inlet, sedimentation basin bottom is provided with delivery port.Simple in construction, maintenance is conveniently, the installation area is flexible, simple in construction, easy to assembly, simple to operate, strong applicability, it is combined by chemistry, biology, physical processing techniques, improves the treatment effect of sewage, reaches discharging standards or Treated sewage reusing standard.
Description
Technical field
The present invention relates to field of sewage treatment equipment, more particularly to a kind of detachable sewage-treatment plant.
Background technology
AAO sewage treatment process is made up of anaerobic pond-anoxic pond-Aerobic Pond-processing unit of Ultra filtration membrane unit four,
Sewage sequentially flows separately through each processing unit, and its separate processing unit is respectively the nitrification in Sewage Biological Treatment
Bacterium, denitrifying bacterium and polyP bacteria provide preferable living environment, Nitrogen/Phosphorus Removal while so as to obtain preferable, and
It is widely used in existing construction of wastewater treatment plant.But existing domestic sewage treatment device treatment effeciency is not high,
Occupation area of equipment is larger, and integrated level is not high, and the generalization degree of existing sewage disposal device is not high, for different sewage
Water source must use the equipment specially designed, cause the waste of resource and the increase of cost.
The content of the invention
It is an object of the invention to：In order to solve, equipment treatment effeciency present in prior art is high, equipment takes up an area face
The larger technical problem of product, the present invention provide a kind of detachable sewage-treatment plant.
The present invention specifically uses following technical scheme to achieve these goals：
A kind of detachable sewage-treatment plant, including grid room, reflux pump, slush pump and six reaction tanks, described six
Individual reaction tank is arranged on inside sewage-treatment plant, and six reative cells are the regulating reservoir, anaerobic pond, anoxic being sequentially connected
Pond, Aerobic Pond, Ultra filtration membrane unit and sedimentation basin, the pond face of six reaction tanks is on-gauge plate, and the on-gauge plate passes through
Connector detachable connection, the regulating reservoir top are provided with water inlet, and the sedimentation basin bottom is provided with delivery port.It is a kind of
Detachable sewage-treatment plant is simple in construction, maintenance is convenient, and during plant running, sewage enters from the water inlet of regulating reservoir, according to
It is secondary to flow through anaerobic pond, anoxic pond, Aerobic Pond, Ultra filtration membrane unit and sedimentation basin, pass through chemistry, biology, physical processing techniques
It is combined, improves the treatment effect of sewage, reaches discharging standards or Treated sewage reusing standard.
In order to reduce the processing pressure of regulating reservoir, the grid room is fixedly installed on the inner wall part of regulating reservoir, the grid
Room connects with water inlet.Sewage into regulating reservoir first passes through grid room progress separation of solid and liquid, and grid room is arranged on regulating reservoir
Portion, it is easy to remove the solid refuse of grid room in time and safeguards grid.
In order to adapt to be actually needed, connectivity slot processing line and effluent weir fixing groove are provided with the on-gauge plate.Its principle
It is：On-gauge plate is assembled according to processing requirement, on-gauge plate is formed into suitable reaction tank size and arrangement mode using connector,
Can be a row or two rows；Scene processing, the connectivity slot of reaction tank is cut out along connectivity slot processing line, is made adjacent
Reaction tank is connected, and groove location connection upper water-out weir prefabricated component is fixed in effluent weir, when avoiding sewage by the connectivity part of reaction tank
Stir water body, influence wastewater treatment efficiency.
In order to avoid the loss of Ultra filtration membrane unit sludge, the sewage-treatment plant also include effluent weir prefabricated component and
Mud platform prefabricated component is kept off, it is convex to be provided with the fixation being engaged with the effluent weir fixing groove on on-gauge plate on the effluent weir prefabricated component
Platform, the gear mud platform prefabricated component are arranged on the inwall of the Ultra filtration membrane unit one side adjacent with sedimentation basin.
For the ease of dismantling, changing and repair, the outside of the reflux pump is provided with waterproof cover one, and the waterproof cover one is hung
Reaction tank pond face top is located at, offers adapter mouth on two opposite faces of the waterproof cover one, two of waterproof cover one
Adapter mouth connects respectively sets feed tube and drain pipe, the feed tube to stretch into Aerobic Pond, and the drain pipe stretches into anoxic pond.Return
Stream pump is placed in waterproof cover one, is removably connected to reaction tank top.Reflux pump leads to the sewage handled through Aerobic Pond
Cross return duct and be pumped into anoxic pond, form interior circulation, can improve and the degradation effect of the compound containing N, and can in sewage are utilized
Sewage in Aerobic Pond is anoxic pond supplemental oxygen.
For the ease of dismantling, changing and repair, the outside of the slush pump is provided with waterproof cover two, and the waterproof cover two is hung
Reaction tank pond face top is located at, adapter mouth is offered on two opposite faces of the waterproof cover two, two of waterproof cover one connect
The mouth of pipe connects respectively sets extraction mud pipe and sludge carrier pipe, the extraction mud pipe to stretch into the bottom of Ultra filtration membrane unit, the dirt
Mud delivery pipe stretches into the bottom of anaerobic pond, and one end connection 4-8 roots that the extraction mud pipe stretches into Ultra filtration membrane unit uniform are taken out
Mud is in charge of.Slush pump is placed in waterproof cover two, is removably connected to reaction tank top.Stretch into Ultra filtration membrane unit
Connection 4-8 roots uniform mud of taking out in one end is in charge of, and improves sludge reflux efficiency.
For the ease of operation, aeration tube is also distributed with the Aerobic Pond bottom, and the aeration tube is connected with air blower, described
Control cabinet is provided with sewage-treatment plant outer wall, the control cabinet is electromechanical with reflux pump, slush pump, grid room and air blast respectively
Connection.Coupling part is respectively provided with waterproof protection against leakage, simplifies operation by control cabinet centralized Control electrical equipment.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
In general, the device has floor space flexible, simple in construction, easy to assembly, simple to operate, strong applicability
Feature.
1. grid room is arranged at regulating reservoir top, it is easy to remove the solid refuse of grid room in time and safeguards grid.
2. using wall of the on-gauge plate as reaction tank, on-gauge plate can be assembled according to processing requirement, will be marked using connector
Quasi- plate forms suitable reaction tank size and arrangement mode, can be a row or two rows；Scene processing, along connectivity slot
Processing line cuts out the connectivity slot of reaction tank, connects adjacent reaction tank, and groove location connection upper water-out weir is fixed in effluent weir
Prefabricated component, sewage is avoided by stirring water body during the connectivity part of reaction tank, influenceing wastewater treatment efficiency.Anoxic pond and Aerobic Pond it
Between reflux pump is set, reflux pump will be pumped into anoxic pond through the sewage that Aerobic Pond is handled by return duct, formed in circulate, can
It is anoxic pond supplemental oxygen to improve to the degradation effect of the compound containing N, and can utilize the sewage in Aerobic Pond in sewage.
3. detachable sewage-treatment plant is using effluent weir prefabricated component and gear mud platform prefabricated component, the processing for the plate that debases the standard
Difficulty, and be conveniently replaceable.
It is placed on 4. reflux pump, sludge pump are detachable inside a kind of detachable sewage-treatment plant, convenient disassembly,
Installation site is flexible.
5. the detachable sewage-treatment plant is simple in construction, sewage treatment process is required without strict selection, is applicable
Property is strong, easy to assembly.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is a kind of structural representation of detachable sewage-treatment plant of the present invention；
Fig. 2 is the part sectioned view of Ultra filtration membrane unit；
Reference：1-regulating reservoir, 2-anaerobic pond, 3-anoxic pond, 4-Aerobic Pond, 5-Ultra filtration membrane unit,
6-sedimentation basin, 7-control cabinet, 8-water inlet, 9-delivery port, 10-grid room, 11-gear mud platform prefabricated component, 12-waterproof
Shell one, 13-feed tube, 14-drain pipe, 15-waterproof cover two, 16-extraction mud pipe, 17-sludge carrier pipe.
Embodiment
In order to which those skilled in the art are better understood from the present invention, below in conjunction with the accompanying drawings with following examples to the present invention
It is described in further detail.
Embodiment 1
As depicted in figs. 1 and 2, a kind of detachable sewage-treatment plant, the sewage-treatment plant include grid room 10,
Reflux pump, slush pump and six reaction tanks, six reaction tanks are arranged on inside the sewage-treatment plant, and described six
Reaction tank is regulating reservoir 1, anaerobic pond 2, anoxic pond 3, Aerobic Pond 4, Ultra filtration membrane unit 5 and the sedimentation basin 6 being sequentially connected, institute
The pond face for stating six reaction tanks is on-gauge plate, and the on-gauge plate is set by connector detachable connection, the top of regulating reservoir 1
Water inlet 8 is equipped with, the bottom of sedimentation basin 6 is provided with delivery port 9.
Embodiment 2
As depicted in figs. 1 and 2, a kind of detachable sewage-treatment plant, the sewage-treatment plant include grid room 10,
Reflux pump, slush pump and six reaction tanks, six reaction tanks are arranged on inside the sewage-treatment plant, and described six
Reaction tank is regulating reservoir 1, anaerobic pond 2, anoxic pond 3, Aerobic Pond 4, Ultra filtration membrane unit 5 and the sedimentation basin 6 being sequentially connected, institute
The pond face for stating six reaction tanks is on-gauge plate, and the on-gauge plate is set by connector detachable connection, the top of regulating reservoir 1
Water inlet 8 is equipped with, the bottom of sedimentation basin 6 is provided with delivery port 9.
The grid room 10 is fixedly installed on the upper inside wall of regulating reservoir 1, and the grid room 10 connects with water inlet 8.
Connectivity slot processing line and effluent weir fixing groove are provided with the on-gauge plate.
The sewage-treatment plant also includes effluent weir prefabricated component and keeps off mud platform prefabricated component 11, on the effluent weir prefabricated component
The fixing lug boss being engaged with the effluent weir fixing groove on on-gauge plate is provided with, the gear mud platform prefabricated component 11 is arranged on milipore filter
On the inwall of the one side adjacent with sedimentation basin 6 of separative element 5.
Embodiment 3
As depicted in figs. 1 and 2,
A kind of detachable sewage-treatment plant, the sewage-treatment plant include grid room 10, reflux pump, slush pump and
Six reaction tanks, six reaction tanks are arranged on inside the sewage-treatment plant, and six reaction tanks are to connect successively
Regulating reservoir 1, anaerobic pond 2, anoxic pond 3, Aerobic Pond 4, Ultra filtration membrane unit 5 and the sedimentation basin 6 connect, six reaction tanks
Pond face is on-gauge plate, and the on-gauge plate is provided with water inlet 8, institute by connector detachable connection, the top of regulating reservoir 1
State the bottom of sedimentation basin 6 and be provided with delivery port 9.
The grid room 10 is fixedly installed on the upper inside wall of regulating reservoir 1, and the grid room 10 connects with water inlet 8.
Connectivity slot processing line and effluent weir fixing groove are provided with the on-gauge plate.
The sewage-treatment plant also includes effluent weir prefabricated component and keeps off mud platform prefabricated component 11, on the effluent weir prefabricated component
The fixing lug boss being engaged with the effluent weir fixing groove on on-gauge plate is provided with, the gear mud platform prefabricated component 11 is arranged on milipore filter
On the inwall of the one side adjacent with sedimentation basin 6 of separative element 5.
The outside of the reflux pump is provided with waterproof cover 1, and the waterproof cover 1 is hung on reaction tank pond face top,
Adapter mouth is offered on two opposite faces of the waterproof cover 1, two adapter mouths of waterproof cover 1 connect respectively to be set
Feed tube 13 and drain pipe 14 are put, the feed tube stretches into Aerobic Pond 4, and the drain pipe 14 stretches into anoxic pond 3.
The outside of the slush pump is provided with waterproof cover 2 15, and the waterproof cover 2 15 is hung on reaction tank pond face top,
Adapter mouth is offered on two opposite faces of the waterproof cover 2 15, two adapter mouths of waterproof cover 1 connect setting respectively
Extraction mud pipe 16 and sludge carrier pipe 17, the extraction mud pipe 16 stretch into the bottom of Ultra filtration membrane unit 5, the sludge carrier pipe 17
The bottom of anaerobic pond 2 is stretched into, the extraction mud pipe 16 stretches into the mud of taking out of one end connection 4-8 roots of Ultra filtration membrane unit 5 uniformly and divided
Pipe.
Embodiment 4
As depicted in figs. 1 and 2, a kind of detachable sewage-treatment plant, the sewage-treatment plant include grid room 10,
Reflux pump, slush pump and six reaction tanks, six reaction tanks are arranged on inside the sewage-treatment plant, and described six
Reaction tank is regulating reservoir 1, anaerobic pond 2, anoxic pond 3, Aerobic Pond 4, Ultra filtration membrane unit 5 and the sedimentation basin 6 being sequentially connected, institute
The pond face for stating six reaction tanks is on-gauge plate, and the on-gauge plate is set by connector detachable connection, the top of regulating reservoir 1
Water inlet 8 is equipped with, the bottom of sedimentation basin 6 is provided with delivery port 9.
The grid room 10 is fixedly installed on the upper inside wall of regulating reservoir 1, and the grid room 10 connects with water inlet 8.
Connectivity slot processing line and effluent weir fixing groove are provided with the on-gauge plate.
The sewage-treatment plant also includes effluent weir prefabricated component and keeps off mud platform prefabricated component 11, on the effluent weir prefabricated component
The fixing lug boss being engaged with the effluent weir fixing groove on on-gauge plate is provided with, the gear mud platform prefabricated component 11 is arranged on milipore filter
On the inwall of the one side adjacent with sedimentation basin 6 of separative element 5.
The outside of the reflux pump is provided with waterproof cover 1, and the waterproof cover 1 is hung on reaction tank pond face top,
Adapter mouth is offered on two opposite faces of the waterproof cover 1, two adapter mouths of waterproof cover 1 connect respectively to be set
Feed tube 13 and drain pipe 14 are put, the feed tube stretches into Aerobic Pond 4, and the drain pipe 14 stretches into anoxic pond 3.
The outside of the slush pump is provided with waterproof cover 2 15, and the waterproof cover 2 15 is hung on reaction tank pond face top,
Adapter mouth is offered on two opposite faces of the waterproof cover 2 15, two adapter mouths of waterproof cover 1 connect setting respectively
Extraction mud pipe 16 and sludge carrier pipe 17, the extraction mud pipe 16 stretch into the bottom of Ultra filtration membrane unit 5, the sludge carrier pipe 17
The bottom of anaerobic pond 2 is stretched into, the extraction mud pipe 16 stretches into the mud of taking out of one end connection 4-8 roots of Ultra filtration membrane unit 5 uniformly and divided
Pipe.
Aeration tube is also distributed with the bottom of Aerobic Pond 4, and the aeration tube is connected with air blower, the sewage-treatment plant
Be provided with control cabinet 7 on outer wall, the control cabinet 7 respectively with reflux pump, slush pump, grid room 10 and air blast mechatronics.
Described above, only presently preferred embodiments of the present invention is not intended to limit the invention, patent protection model of the invention
Enclose and be defined by claims, the equivalent structure change that every specification and accompanying drawing content with the present invention is made, similarly
It should include within the scope of the present invention.
Claims (7)
- A kind of 1. detachable sewage-treatment plant, it is characterised in that：The sewage-treatment plant includes grid room (10), backflow Pump, slush pump and six reaction tanks, six reaction tanks are arranged on inside the sewage-treatment plant, and six reactions Pond is regulating reservoir (1), anaerobic pond (2), anoxic pond (3), Aerobic Pond (4), Ultra filtration membrane unit (5) and the precipitation being sequentially connected Pond (6), the pond face of six reaction tanks is on-gauge plate, and the on-gauge plate passes through connector detachable connection, the regulation Pond (1) top is provided with water inlet (8), and sedimentation basin (6) bottom is provided with delivery port (9).
- A kind of 2. detachable sewage-treatment plant according to claim 1, it is characterised in that：The grid room (10) is solid Surely the upper inside wall of regulating reservoir (1) is arranged on, the grid room (10) connects with water inlet (8).
- A kind of 3. detachable sewage-treatment plant according to claim 1, it is characterised in that：Set on the on-gauge plate There are connectivity slot processing line and effluent weir fixing groove.
- A kind of 4. detachable sewage-treatment plant according to claim 3, it is characterised in that：The sewage-treatment plant Also include effluent weir prefabricated component and gear mud platform prefabricated component (11), be provided with and the water outlet on on-gauge plate on the effluent weir prefabricated component The fixing lug boss that weir fixing groove is engaged, the gear mud platform prefabricated component (11) are arranged on Ultra filtration membrane unit (5)With sedimentation basin (6) on the inwall of adjacent one side.
- A kind of 5. detachable sewage-treatment plant according to claim 1, it is characterised in that：The outside of the reflux pump Waterproof cover one (12) is provided with, the waterproof cover one (12) is hung on reaction tank pond face top, in the waterproof cover one (12)Two opposite faces on offer adapter mouth, two adapter mouths of waterproof cover one (12) connect setting feed tube respectively (13) and drain pipe (14), the feed tube stretch into Aerobic Pond (4), and the drain pipe (14) stretches into anoxic pond (3).
- A kind of 6. detachable sewage-treatment plant according to claim 1, it is characterised in that：The outside of the slush pump Waterproof cover two (15) is provided with, the waterproof cover two (15) is hung on reaction tank pond face top, the waterproof cover two (15)Two opposite faces on offer adapter mouth, two adapter mouths of waterproof cover one (12) connect setting extraction mud pipe respectively (16) and sludge carrier pipe (17), the extraction mud pipe (16) stretch into the bottom of Ultra filtration membrane unit (5), the sludge carrier pipe (17) bottom of anaerobic pond (2) is stretched into, one end connection 4-8 roots that the extraction mud pipe (16) stretches into Ultra filtration membrane unit (5) are equal The mud of taking out of cloth is in charge of.
- A kind of 7. detachable sewage-treatment plant according to claim 1 to 6 any one, it is characterised in that：It is described Aeration tube is also distributed with Aerobic Pond (4) bottom, and the aeration tube is connected with air blower, set on the sewage-treatment plant outer wall Have a control cabinet (7), the control cabinet (7) respectively with reflux pump, slush pump, grid room (10) and air blast mechatronics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711053169.3A CN107857427A (en) | 2017-10-31 | 2017-10-31 | A kind of detachable sewage-treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711053169.3A CN107857427A (en) | 2017-10-31 | 2017-10-31 | A kind of detachable sewage-treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107857427A true CN107857427A (en) | 2018-03-30 |
Family
ID=61697464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711053169.3A Withdrawn CN107857427A (en) | 2017-10-31 | 2017-10-31 | A kind of detachable sewage-treatment plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107857427A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110776195A (en) * | 2019-10-21 | 2020-02-11 | 双鸭山市德玥环保科技有限公司 | Energy-saving integrated sewage treatment equipment |
-
2017
- 2017-10-31 CN CN201711053169.3A patent/CN107857427A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110776195A (en) * | 2019-10-21 | 2020-02-11 | 双鸭山市德玥环保科技有限公司 | Energy-saving integrated sewage treatment equipment |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180330 |
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| WW01 | Invention patent application withdrawn after publication |