CN113200579B - Device and method for deeply treating phenols in coal chemical wastewater - Google Patents
Device and method for deeply treating phenols in coal chemical wastewater Download PDFInfo
- Publication number
- CN113200579B CN113200579B CN202110529615.3A CN202110529615A CN113200579B CN 113200579 B CN113200579 B CN 113200579B CN 202110529615 A CN202110529615 A CN 202110529615A CN 113200579 B CN113200579 B CN 113200579B
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- disc
- round holes
- cylinder
- rod
- 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
Classifications
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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)
- Physical Water Treatments (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a device for deeply treating phenols in coal chemical wastewater, which comprises a base, wherein the upper side of the base is fixedly connected with a barrel body, the interior of the barrel body is fixedly connected with an aeration pipe, the outer side of the upper end of the barrel body is fixedly connected with an overflow groove, the upper side of the base is fixedly connected with two stand columns, the upper ends of the two stand columns are fixedly connected with a transverse plate together, a cylinder is fixedly connected onto the transverse plate, the lower end of a telescopic shaft of the cylinder is fixedly connected with a support plate, the bottom of the support plate is fixedly connected with a cylinder, the lower end of the cylinder is fixedly connected with a first disc, the outer side of the cylinder is rotated to a connecting sleeve, the lower end of the sleeve is fixedly connected with a second disc, the first disc is provided with a plurality of first round holes, the plurality of first round holes are respectively positioned in a plurality of concentric circles, the second disc is provided with a plurality of second round holes, and the plurality of second round holes are respectively positioned in a plurality of concentric circles. According to the invention, the first disc and the second disc are used together to lift and overflow the sewage containing suspended small-particle impurities above into the overflow groove, so that the separation efficiency is improved.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a device and a method for deeply treating phenols in coal chemical wastewater.
Background
Coal chemical refers to a process of converting coal into gas, liquid and solid fuels and chemicals by using coal as a raw material through chemical processing. Mainly comprises coal gasification, liquefaction, dry distillation, tar processing, calcium carbide acetylene chemical industry and the like. Coal chemical processing. The chemical structure of organic matter in coal is a macromolecular structure with aromatic condensed rings as unit core, connected by bridge bonds and various functional groups, and can convert coal into various fuels and chemical products by thermal processing and catalytic processing.
A sewage treatment device in the prior art performs aeration treatment on sewage, for example, a high-efficiency coal chemical wastewater treatment device with a patent publication number of CN111499088A and a method thereof, comprises an ultrafine grating device, a small particle treatment device, a precipitation device, a Fenton fluidized bed, an anaerobic tank, a sedimentation tank, an anoxic tank and an aerobic tank; the ultrafine grating device, the small particle treatment device, the precipitation device, the Fenton fluidized bed, the anaerobic tank, the sedimentation tank, the anoxic tank and the aerobic tank are sequentially connected through pipelines.
Above-mentioned device, the air that the aeration pipe sent into combines with the tiny particle impurity in the sewage, rises to tiny particle processing apparatus's liquid level department, carries out artifical the collection again, advances to collect through the manual work, and work efficiency is lower.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a device and a method for deeply treating phenols in coal chemical wastewater, so as to solve the problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the device for deeply treating phenols in coal chemical wastewater comprises a base, wherein a barrel body is fixedly connected to the upper side of the base, an aeration pipe is fixedly connected to the interior of the barrel body, an overflow groove is fixedly connected to the outer side of the upper end of the barrel body, two stand columns are fixedly connected to the upper side of the base, a transverse plate is fixedly connected to the upper ends of the two stand columns together, a cylinder is fixedly connected to the transverse plate, a support plate is fixedly connected to the lower end of a telescopic shaft of the cylinder, a cylinder is fixedly connected to the bottom of the support plate, a first disc is fixedly connected to the lower end of the cylinder, the first disc is connected to the inner wall of the barrel body in a sliding and sealing mode, a connecting sleeve is turned to the outer side of the cylinder, a second disc is fixedly connected to the lower end of the sleeve, the first disc is provided with a plurality of first round holes, the plurality of first round holes are respectively positioned in a plurality of concentric circles, the second disc is provided with a plurality of second round holes respectively positioned in a plurality of concentric circles, the first round holes and the second round holes are arranged in a one-to-one correspondence mode, and the second disc rotates to enable the first round holes and the second round holes to be coaxial.
Preferably, the outer circle of the first disc is provided with a sealing ring.
Preferably, the second disc upside is equipped with logical groove, first disc is equipped with the circular slot that runs through, the circular slot sets up with logical groove relatively, fixed connection rubber membrane in the circular slot.
Preferably, one end of the support plate is fixedly connected with a vertical plate, one side of the vertical plate is connected with a drive shaft in a unidirectional rotation manner, the end of the drive shaft is fixedly connected with a first bevel gear, the bottom of the support plate is rotatably connected with a second bevel gear, the second bevel gear is meshed with the first bevel gear, a rotating shaft of the second bevel gear is fixedly connected with a drive gear, the upper end of the sleeve is fixedly connected with a first gear, and the first gear is meshed with the drive gear.
Preferably, the ratchet wheel is fixedly connected to the driving shaft, the pawl is connected to one side of the vertical plate in a one-way rotating mode, a reset torsion spring is mounted on a rotating shaft of the pawl, a sliding groove is formed in one side of the supporting plate, a sliding rod is connected to the sliding groove in a sliding mode, the lower end of the sliding rod is fixedly connected with the hanging rod, one side of the hanging rod is connected with the poking rod in a one-way rotating mode, a first torsion spring is mounted on the rotating shaft of the poking rod, and the poking rod and the ratchet wheel are correspondingly arranged.
Preferably, the cross-section of spout is the dovetail, the slide bar is with spout looks adaptation.
Preferably, the upper side of the transverse plate is fixedly connected with a bracket, the upper side of the bracket is fixedly connected with an electric push rod, and a main shaft of the electric push rod is fixedly connected with the upper end of the sliding rod.
The invention also discloses a method for deeply treating phenols in the coal chemical industry wastewater, and the treatment device is adopted for wastewater treatment.
The invention has the advantages that: according to the device for deeply treating phenols in coal chemical wastewater, provided by the invention, the aeration pipe introduces air into the barrel body, the air is combined with small particle impurities in wastewater and rises to the liquid level, firstly, the first round hole and the second round hole are coaxial, the first disc and the second disc are immersed into the wastewater together, then, the second disc rotates, so that the first disc and the second disc rise together after the first round hole and the second round hole are staggered, and the first disc and the second disc lift and overflow the wastewater containing suspended small particle impurities above into the overflow groove together, thereby improving the separation efficiency.
Drawings
FIG. 1 is a schematic diagram of the basic structure of the present invention;
FIG. 2 is an enlarged view of a portion E of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1 at F;
FIG. 4 is a partial enlarged view of the area M in FIG. 3;
fig. 5 is a partial enlarged view of fig. 3 at N.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in FIGS. 1-5, the device for advanced treatment of phenols in wastewater from coal chemical industry provided by the present invention comprises a base 1, a barrel 2 is fixedly connected to the upper side of the base 1, an aeration pipe 21 is fixedly connected to the inside of the barrel 2, an overflow tank 22 is fixedly connected to the outer side of the upper end of the barrel 2, two upright columns 23 are fixedly connected to the upper side of the base 1, a horizontal plate 24 is fixedly connected to the upper ends of the two upright columns 23, an air cylinder 25 is fixedly connected to the horizontal plate 24, a support plate 26 is fixedly connected to the lower end of an expansion shaft of the air cylinder 25, a cylinder 27 is fixedly connected to the bottom of the support plate 26, a first circular disk 3 is fixedly connected to the lower end of the cylinder 27, a sealing ring 31 is disposed on the outer circumference of the first circular disk 3, the first circular disk 3 is slidably and sealingly connected to the inner wall of the barrel 2, the outer side of the cylinder 27 is rotated to a connecting sleeve 271, the lower end of the sleeve 271 is fixedly connected to a second circular disk 4, the first circular disk 3 is provided with a plurality of first circular holes 32, the plurality of first circular holes 32 are respectively disposed in a plurality of concentric circles, the second disc 4 is provided with a plurality of second round holes 41, the plurality of second round holes 41 are respectively arranged in a plurality of concentric circles, the first round holes 32 are arranged in a one-to-one correspondence with the second round holes 41, the second disc 4 rotates to enable the first round holes 32 to be coaxial with the second round holes 41, the aeration pipe 21 introduces air into the barrel body 2, the air is combined with small particle impurities in sewage and rises to the liquid level, firstly, the first round holes 32 are coaxial with the second round holes 41, the first disc 3 and the second disc 4 sink into the sewage together, and then, the second disc 4 rotates to enable the first round holes 32 and the second round holes 41 to form dislocation, then, the first disc 3 and the second disc 4 rise together, the first disc 3 and the second disc 4 lift the sewage containing suspended small particle impurities above and overflow into the overflow groove 22 together, and separation efficiency is improved.
The upside of second disc 4 is equipped with logical groove 42, and first disc 3 is equipped with the circular slot 43 that runs through, and circular slot 43 sets up with logical groove 42 relatively, and fixed connection rubber membrane 44 in the circular slot 43, rubber membrane 44 can be upwards protruding for when compensating first round hole 32 and second round hole 41 by coaxial to disalignment, the passageway reduces gradually, first disc 3 and second disc 4 when descending always and logical volume change between the body 2 bottom plate.
One end of the supporting plate 26 is fixedly connected with a vertical plate 51, one side of the vertical plate 51 is connected with a driving shaft 52 in a unidirectional rotation manner, the end of the driving shaft 52 is fixedly connected with a first bevel gear 53, the bottom of the supporting plate 26 is connected with a second bevel gear 54 in a rotation manner, the second bevel gear 54 is meshed with the first bevel gear 53, a rotating shaft of the second bevel gear 54 is fixedly connected with a driving gear 55, the upper end of a sleeve 271 is fixedly connected with a first gear 56, the first gear 56 is meshed with the driving gear 55, a ratchet 57 is fixedly connected with the driving shaft 52, one side of the vertical plate 51 is connected with a pawl 58 in a unidirectional rotation manner, a reset torsion spring is arranged on the rotating shaft of the pawl 58, the ratchet 57 can only rotate in a unidirectional manner by arranging a limiting column, the working principle of the ratchet pawl is the prior art, one side of the supporting plate 26 is provided with a sliding groove which is connected with a sliding rod 59 in a sliding manner, the upper side of the transverse plate 24 is fixedly connected with a support 61, the upper side of the support 61 is fixedly connected with an electric push rod 62, the main shaft of the electric push rod 62 is fixedly connected with the upper end of a sliding rod 59, the lower end of the sliding rod 59 is fixedly connected with a hanging rod 591, one side of the hanging rod 591 is connected with a poking rod 592 in a unidirectional rotation mode, a first torsion spring is installed on a rotating shaft of the poking rod 592, the poking rod 592 and a ratchet wheel 57 are correspondingly arranged, the cross section of the sliding groove is in a dovetail shape, the sliding rod 59 is matched with the sliding groove, the poking rod 592 acts on the ratchet wheel 57 and enables the ratchet wheel 57 to rotate to the position in the descending process of the vertical plate 51, the ratchet wheel 57 does not rotate in the ascending process through the characteristics of the ratchet wheel and the pawl, the second disc 4 rotates through the transmission of a gear set, so that the first disc 3 and the second disc 4 can rotate to a ratchet position in the descending process of the vertical plate 51, the first circular hole 32 and the second circular hole 41 are not coaxial, sewage is separated, and the state is always kept in the ascending process.
Example 2
The invention also discloses a method for deeply treating phenols in the coal chemical industry wastewater, and the treatment device is adopted for wastewater treatment.
The working principle is as follows: aeration pipe 21 lets in the air in to staving 2, the air combines with the tiny particle impurity in the sewage, rise to liquid level department, at first round hole 32 is coaxial with second round hole 41, first disc 3 together sinks in the sewage with second disc 4, second disc 4 rotates afterwards, make first round hole 32 and second round hole 41 form dislocation back first disc 3 and second disc 4 together rise, first disc 3 promotes and overflows overflow launder 22 with the sewage that the top contains the tiny particle impurity of suspension jointly with second disc 4 in, separation efficiency is improved.
Further, after the sewage containing suspended small particle impurities is lifted and overflows to be discharged, the first disc 3 and the second disc 4 can rotate a ratchet position when descending to a set position, so that the first circular hole 32 and the second circular hole 41 are coaxial, then the suspender 591 descends to a second position, at the moment, the first disc 3 and the second disc 4 can use the same principle to separate the supernatant and the precipitate in the whole body 2, and the operation efficiency is high and fast.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a device of phenol kind in advanced treatment coal chemical industry waste water, includes base (1), base (1) upside fixed connection staving (2), staving (2) inside fixed connection aeration pipe (21), staving (2) upper end outside fixed connection overflow launder (22), its characterized in that: the upper side of the base (1) is fixedly connected with two stand columns (23), the upper ends of the two stand columns (23) are fixedly connected with a transverse plate (24) together, the transverse plate (24) is fixedly connected with a cylinder (25), the lower end of a telescopic shaft of the cylinder (25) is fixedly connected with a supporting plate (26), the bottom of the supporting plate (26) is fixedly connected with a cylinder (27), the lower end of the cylinder (27) is fixedly connected with a first disc (3), the first disc (3) is connected with the inner wall of the barrel body (2) in a sliding and sealing manner, the outer side of the cylinder (27) is rotated to a connecting sleeve (271), the lower end of the sleeve (271) is fixedly connected with a second disc (4), the first disc (3) is provided with a plurality of first round holes (32), the first round holes (32) are respectively positioned in a plurality of concentric circles, the second disc (4) is provided with a plurality of second round holes (41), and the second round holes (41) are respectively positioned in a plurality of concentric circles, the first round holes (32) and the second round holes (41) are arranged in a one-to-one correspondence manner, and the second disc (4) rotates to enable the first round holes (32) and the second round holes (41) to be coaxial;
one end of the supporting plate (26) is fixedly connected with a vertical plate (51), one side of the vertical plate (51) is connected with a driving shaft (52) in a one-way rotating manner, the end of the driving shaft (52) is fixedly connected with a first bevel gear (53), the bottom of the supporting plate (26) is connected with a second bevel gear (54) in a rotating manner, the second bevel gear (54) is meshed with the first bevel gear (53), a rotating shaft of the second bevel gear (54) is fixedly connected with a driving gear (55), the upper end of the sleeve (271) is fixedly connected with a first gear (56), and the first gear (56) is meshed with the driving gear (55);
a ratchet wheel (57) is fixedly connected to the driving shaft (52), one side of the vertical plate (51) is connected with a pawl (58) in a unidirectional rotating mode, a reset torsion spring is installed on a rotating shaft of the pawl (58), a sliding groove is formed in one side of the supporting plate (26), a sliding rod (59) is connected in the sliding groove in a sliding mode, the lower end of the sliding rod (59) is fixedly connected with a hanging rod (591), one side of the hanging rod (591) is connected with a poke rod (592) in a unidirectional rotating mode, a first torsion spring is installed on a rotating shaft of the poke rod (592), and the poke rod (592) and the ratchet wheel (57) are arranged correspondingly;
the section of the sliding groove is dovetail-shaped, and the sliding rod (59) is matched with the sliding groove;
a bracket (61) is fixedly connected to the upper side of the transverse plate (24), an electric push rod (62) is fixedly connected to the upper side of the bracket (61), and a main shaft of the electric push rod (62) is fixedly connected with the upper end of the sliding rod (59);
the second disc (4) is rotated through the transmission of the gear set, so that the first disc (3) and the second disc (4) can rotate a ratchet position when descending to a set position, the first round hole (32) and the second round hole (41) are not coaxial, and sewage is separated.
2. The device for deeply treating phenols in coal chemical industry wastewater according to claim 1, is characterized in that: and a sealing ring (31) is arranged on the excircle of the first disc (3).
3. The device for deeply treating phenols in coal chemical industry wastewater according to claim 1, is characterized in that: second disc (4) upside is equipped with logical groove (42), first disc (3) are equipped with circular slot (43) that run through, circular slot (43) set up with leading to groove (42) relatively, circular slot (43) internal fixation connects rubber membrane (44).
4. A method for deeply treating phenols in coal chemical industry wastewater is characterized by comprising the following steps: wastewater treatment using the apparatus of any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110529615.3A CN113200579B (en) | 2021-05-14 | 2021-05-14 | Device and method for deeply treating phenols in coal chemical wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110529615.3A CN113200579B (en) | 2021-05-14 | 2021-05-14 | Device and method for deeply treating phenols in coal chemical wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113200579A CN113200579A (en) | 2021-08-03 |
| CN113200579B true CN113200579B (en) | 2022-08-19 |
Family
ID=77031350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110529615.3A Active CN113200579B (en) | 2021-05-14 | 2021-05-14 | Device and method for deeply treating phenols in coal chemical wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113200579B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE859418A (en) * | 1976-10-14 | 1978-04-05 | Ballast Nedam Groep Nv | METHOD AND EQUIPMENT FOR SEPARATING A MIXTURE |
| CN207408182U (en) * | 2017-09-08 | 2018-05-25 | 北京金恒祥仪器有限公司 | Air-drying box and its Centrifugical extraction mechanism |
| CN207413034U (en) * | 2017-09-27 | 2018-05-29 | 上海星亦环保科技有限公司 | A kind of equipment of wet processed dust |
| CN208175889U (en) * | 2018-03-28 | 2018-12-04 | 新昌县羽林街道维博机械厂 | A kind of electronic plant protection drone variable spraying device |
| CN110130457A (en) * | 2019-05-23 | 2019-08-16 | 王涛 | A kind of rainwater recycle processing unit of sponge urban construction |
| CN112044123A (en) * | 2020-09-11 | 2020-12-08 | 唐光生 | Pile foundation construction effluent treatment plant |
| CN112374619A (en) * | 2021-01-18 | 2021-02-19 | 山东龙安泰环保科技有限公司 | Electrocatalytic oxidation wastewater treatment device |
| CN112607909A (en) * | 2020-12-17 | 2021-04-06 | 安徽建筑大学城市建设学院 | Agricultural wastewater treatment device |
-
2021
- 2021-05-14 CN CN202110529615.3A patent/CN113200579B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE859418A (en) * | 1976-10-14 | 1978-04-05 | Ballast Nedam Groep Nv | METHOD AND EQUIPMENT FOR SEPARATING A MIXTURE |
| CN207408182U (en) * | 2017-09-08 | 2018-05-25 | 北京金恒祥仪器有限公司 | Air-drying box and its Centrifugical extraction mechanism |
| CN207413034U (en) * | 2017-09-27 | 2018-05-29 | 上海星亦环保科技有限公司 | A kind of equipment of wet processed dust |
| CN208175889U (en) * | 2018-03-28 | 2018-12-04 | 新昌县羽林街道维博机械厂 | A kind of electronic plant protection drone variable spraying device |
| CN110130457A (en) * | 2019-05-23 | 2019-08-16 | 王涛 | A kind of rainwater recycle processing unit of sponge urban construction |
| CN112044123A (en) * | 2020-09-11 | 2020-12-08 | 唐光生 | Pile foundation construction effluent treatment plant |
| CN112607909A (en) * | 2020-12-17 | 2021-04-06 | 安徽建筑大学城市建设学院 | Agricultural wastewater treatment device |
| CN112374619A (en) * | 2021-01-18 | 2021-02-19 | 山东龙安泰环保科技有限公司 | Electrocatalytic oxidation wastewater treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113200579A (en) | 2021-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101870543A (en) | Landfill percolate treatment novel process | |
| CN102126814A (en) | Combination advanced treatment method for oil extraction wastewater | |
| CN105036469A (en) | Advanced treatment system for dye wastewater | |
| CN102432142A (en) | Solar domestic sewage anaerobic treatment device and method | |
| CN205556397U (en) | A multistage bological aerated filter for quality of water purifies | |
| CN105668943A (en) | Multistage aeration biofilter for water quality purification and purification technique thereof | |
| CN113200579B (en) | Device and method for deeply treating phenols in coal chemical wastewater | |
| CN2441794Y (en) | Integrated processor for waste water | |
| CN205635284U (en) | Sewage treatment device is bred in integration | |
| CN202358992U (en) | Sewage treatment device | |
| CN201495152U (en) | Anaerobic/aerobic bamboo reed charcoal biological film sewage treatment bed | |
| CN116768359A (en) | UASB anaerobic reactor water distribution structure | |
| CN206188484U (en) | Anaerobic reactor is scratched in layering stirring circulation | |
| CN207429768U (en) | A kind of grating type sedimentation basin | |
| CN202208662U (en) | Up-flow type high-efficiency anaerobic contact reactor | |
| CN211999026U (en) | Anaerobic reactor | |
| CN104445800B (en) | Utilize micro-algae coupling light bioreactor sewage treatment and the method producing diesel oil | |
| CN203392927U (en) | Fully-pneumatic type integrated domestic sewage treatment device | |
| CN101570360A (en) | Oil refining sewage advanced treatment bioreactor | |
| CN112354214A (en) | Oil-water separation sucking disc recovery system | |
| CN2910917Y (en) | Anaerobic biochemical reactor able to enhance bio-degradation of wastewater | |
| CN2444943Y (en) | Sewage treatment device | |
| CN111410299A (en) | Flexible filler sequencing batch biofilm reactor | |
| CN210595410U (en) | Coal chemical wastewater treatment equipment | |
| CN215712050U (en) | Upflow anaerobic sludge blanket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |