CN115350512B - Aeration grit chamber - Google Patents
Aeration grit chamber Download PDFInfo
- Publication number
- CN115350512B CN115350512B CN202211169566.8A CN202211169566A CN115350512B CN 115350512 B CN115350512 B CN 115350512B CN 202211169566 A CN202211169566 A CN 202211169566A CN 115350512 B CN115350512 B CN 115350512B
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- aeration
- slag
- sand
- sucking
- main pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0084—Enhancing liquid-particle separation using the flotation principle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2433—Discharge mechanisms for floating particles
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Removal Of Floating Material (AREA)
Abstract
The invention discloses an aeration grit chamber, which comprises a chamber body; the slag blocking grating plate is fixedly arranged in the tank body so as to divide the inner cavity of the tank body into a scum area and an aeration sand sedimentation area which are arranged side by side left and right, and the aeration sand sedimentation area is divided into an aeration area and a sand sedimentation area; the aeration system comprises a first aeration main pipe and a first aeration branch pipe, the first aeration main pipe is fixedly arranged in the aeration zone, and the left end of the first aeration branch pipe is communicated with the first aeration main pipe and is respectively connected and communicated with the aeration zone; the sand sucking system comprises a linear driving mechanism, an air source, a sand sucking pump and a sand sucking pipeline; the slag sucking system comprises a slag sucking pump and a slag sucking pipeline, the slag sucking pump is fixed at the output end of the linear driving mechanism, an air cavity of the slag sucking pump is connected with an output port of an air source, an inlet of the slag sucking pump is connected and communicated with a slag sucking outlet of the slag sucking pipeline, and a slag sucking inlet of the slag sucking pipeline stretches into the scum area; the aeration grit chamber has better grit removal and deslagging effects.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to an aeration grit chamber.
Background
The working principle of the grit chamber is based on gravity separation, so that inorganic particles with high specific gravity are sunk, and organic suspended particles can be taken away along with water flow. Two types of grit chambers commonly used in practical engineering are a rotational flow grit chamber and an aeration grit chamber. The cyclone sand setting tank has the advantages of good sand setting effect and small occupied area, and has the defect that only inorganic sand grains can be removed, but scum in sewage cannot be removed. The aeration grit chamber has the advantages of long residence time, cleaner sand grains after aeration and scrubbing, and skimming function.
The aeration grit chamber of the pretreatment section of the sewage treatment plant has the advantages that part of inorganic particles sink under the action of aeration, part of suspended particles can float upwards to generate a large amount of scum, and the scum is salvaged regularly only by manually holding a simple tool, so that time and labor are wasted, the scum residue is more, and the next process treatment is affected.
At present, a reinforced concrete tank body is usually adopted in a slag groove of an aeration grit chamber of a sewage treatment plant, a slag discharge pipe is pre-buried, and slag in a slag area is scraped into a slag well by moving a slag scraping plate, so that the removal of the slag is realized. However, in actual use, the water quantity changes to cause liquid level change, and then the situation that the elevation of a floating slag groove and the elevation of a slag scraping plate are not matched, floating slag cannot be collected, and then manual salvaging is needed often occurs.
Disclosure of Invention
The invention aims to overcome the defects, and provides an aeration sand setting tank and a navigation method, which have better sand removal and slag removal effects.
The invention provides an aeration grit chamber, which comprises a chamber body; the slag blocking grating plate is fixedly arranged in the tank body so as to divide the inner cavity of the tank body into a scum area and an aeration sand sedimentation area which are arranged side by side left and right, and the aeration sand sedimentation area is sequentially divided into an aeration area and a sand sedimentation area from top to bottom; the aeration system comprises a first aeration system, the first aeration system comprises a first aeration main pipe and a plurality of first aeration branch pipes, one end of the first aeration main pipe is fixedly arranged on the right side wall of the aeration zone, the left ends of the plurality of first aeration branch pipes are connected and communicated with the first aeration main pipe, and the right ends of the plurality of first aeration branch pipes are respectively connected and communicated with the aeration zone; the sand sucking system comprises a linear driving mechanism, an air source, a sand sucking pump and a sand sucking pipeline, wherein the linear driving mechanism is fixedly arranged on the tank body, the sand sucking pump and the air source are respectively and fixedly arranged at the output end of the linear driving mechanism, the inlet of the sand sucking pump is connected and communicated with the sand sucking outlet of the sand sucking pipeline, the sand sucking inlet of the sand sucking pipeline stretches into the sand settling zone, and the output port of the air source is connected and communicated with the air cavity of the sand sucking pump through the sand sucking air pipe; and the slag sucking system comprises a slag sucking pump and a slag sucking pipeline, the slag sucking pump is fixed at the output end of the linear driving mechanism, the air cavity of the slag sucking pump is connected and communicated with the output port of the air source through a sand sucking air pipe, the inlet of the slag sucking pump is connected and communicated with the slag sucking outlet of the slag sucking pipeline, the outlet is used for being connected into a scum well, and the slag sucking inlet of the slag sucking pipeline stretches into the scum area.
Further, the aeration system further comprises a second aeration system, the second aeration system comprises a second aeration main pipe and a plurality of second aeration branch pipes, the second aeration main pipe is fixedly arranged on the side wall of the sand sediment zone, the lower ends of the plurality of second aeration branch pipes are fixedly connected and communicated with the second aeration main pipe, the upper ends of the plurality of second aeration branch pipes are communicated with the sand sediment zone, the second aeration system drives water flow at the right lower side of the inner cavity of the pond to move upwards, and water flow at the right upper side of the inner cavity of the first aeration system arranged at the right upper side of the second aeration system drives water flow at the left upper side of the pond to move so that water flow forms a vortex rotating anticlockwise.
Further, the right side wall of the aeration zone is composed of a guide wall and a wall body which are sequentially connected from top to bottom, the guide wall is arc-shaped, water flow at the right lower side of the inner cavity in the pool moves upwards under the drive of the second aeration system, flows to the guide wall and moves to the left side of the inner cavity in the pool under the guide action of the guide wall, and the water flow forms a vortex rotating anticlockwise.
Further, the right side arm of the sand sediment zone is formed by an arc transition section, a first inclined section and a second inclined section which are sequentially connected from top to bottom, and the inclination angle of the first inclined section is smaller than that of the second inclined section.
Further, the second aeration main pipe is fixedly arranged on the first inclined section.
Further, the aeration system further comprises a third aeration system, the third aeration system comprises a third aeration main pipe and a plurality of third aeration branch pipes, the third aeration main pipe is fixedly arranged in the scum area, the upper ends of the plurality of third aeration main pipes are connected and communicated with the third aeration main pipe, and the lower ends of the plurality of third aeration main pipes are communicated with the scum area.
Further, the linear driving mechanism comprises two linear transmission parts, a movable frame, a rotary transmission part and a rotary driving source, wherein the two linear transmission parts are respectively arranged on the left side wall and the right side wall of the tank body, each linear transmission part comprises a chute formed on one side wall of the tank body, a sliding block slidably arranged in the chute, and a screw rod rotatably arranged in the chute and in threaded connection with the sliding block; the movable frame forms the output end of the linear driving mechanism, two ends of the movable frame are fixedly connected with the two sliding blocks respectively, the rotary rotating part comprises two synchronous wheels which are coaxially and fixedly installed at the end parts of the screw rods respectively and a synchronous belt which is synchronously connected with the two synchronous wheels, and the output end of the rotary driving source is coaxially and fixedly connected with the output end of one of the screw rods.
Further, the slag sucking pipeline comprises a connecting pipe and a slag sucking main pipe, wherein the lower end of the connecting pipe is provided with internal threads, the upper end of the slag sucking main pipe is provided with external threads, and the connecting pipe is in threaded connection with the slag sucking main pipe.
Further, a sand suction electromagnetic valve is arranged on the sand suction air pipe, and a slag suction electromagnetic valve is arranged on the slag suction air pipe.
The beneficial effects of the invention are as follows: the aeration grit chamber has good sand removal effect and high sand removal efficiency; but also can concentrate the scum to the scum area fast, concentrate the sand setting to the sand setting area; meanwhile, the scum can be sucked to a scum well by replacing a scum scraping plate through the scum sucking pipeline, manual scum scraping is not needed, the height of a scum inlet can be adjusted according to the scum liquid level, and the slag removing effect is good.
Drawings
FIG. 1 is a schematic view of an aeration grit chamber in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a slag sucking pipeline in an embodiment of the invention.
In the figure, 1 is a tank body, 2 is a slag blocking grid plate, 3 is a scum area, 4 is an aeration area, 5 is a sand sedimentation area, 6 is a guide wall, 7 is an arc transition section, 8 is a first inclined section, 9 is a second inclined section, 10 is a first aeration main pipe, 11 is a first aeration main pipe, 12 is a first aeration branch pipe, 13 is a second aeration main pipe, 14 is a second aeration branch pipe, 15 is a third aeration main pipe, 16 is a third aeration branch pipe, 17 is a sliding block, 18 is a screw, 19 is a movable frame, 20 is a Roots blower, 21 is a sand suction pump, 22 is a sand suction pipeline, 23 is a slag suction pump, 24 is a sand suction pipeline, 25 is a sand suction air pipe, 26 is a slag suction air pipe, 27 is a connecting pipe, 28 is a sand suction main pipe, 29 is a sand suction electromagnetic valve, and 30 is a slag suction electromagnetic valve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic view of the structure of an aeration grit chamber in the embodiment of the present invention.
As shown in fig. 1, an aeration grit chamber in this embodiment includes: the device comprises a tank body 1, a slag blocking grating plate 2, an aeration system, a sand sucking system and a slag sucking system.
The slag blocking grating plate 2 is fixedly arranged in the tank body 1, so that the inner cavity of the tank body 1 is divided into a scum area 3 and an aeration sand sedimentation area which are arranged side by side left and right, and the aeration sand sedimentation area is sequentially divided into an aeration area 4 and a sand sedimentation area 5 which are mutually communicated from top to bottom.
The right side wall of the aeration zone 4 is composed of a guide wall 6 and a wall body which are sequentially connected from top to bottom, and the guide wall 6 is arc-shaped.
The right side arm of the sand sediment zone 5 is formed by sequentially connecting an arc-shaped transition section 7, a first inclined section 8 and a second inclined section 9 from top to bottom, and the inclination angle of the first inclined section 8 is smaller than that of the second inclined section 9.
The aeration system comprises a first aeration system, a second aeration system and a third aeration system.
The first aeration system includes a first aeration header 10 and a plurality of first aeration sections. The length direction of the first aeration main pipe 10 is parallel to the length direction of the tank body 1, and the inlet of the first aeration main pipe is connected and communicated with an aeration source. The plurality of first aeration sections are sequentially stepped along the length direction of the first aeration header pipe 10, and each first aeration section includes a first aeration main pipe 11 and a plurality of first aeration branch pipes 12. The upper end of the first main aeration pipe 11 is connected and communicated with the first main aeration pipe 10, and the lower end is fixedly arranged at the upper part of the wall body. The plurality of first aeration branch pipes 12 are arranged in sequence along the longitudinal direction, the left end of each first aeration branch pipe 12 is connected and communicated with the first aeration main pipe 11, and the right end of each first aeration branch pipe 12 is respectively connected and communicated with the aeration zone 4.
The second aeration system comprises a second aeration main pipe 13 and a plurality of second aeration branch pipes 14, wherein the second aeration main pipe 13 is fixedly arranged on the first inclined section 8 of the sand sediment zone 5, and the length direction of the second aeration main pipe is parallel to the length direction of the tank body 1. The plurality of second aeration branch pipes 14 are distributed in a rectangular array, the lower end of each second aeration branch pipe 14 is fixedly connected and communicated with the second aeration main pipe 13, and the upper end of each second aeration branch pipe is communicated with the sand sediment zone 5.
The third aeration system comprises a third aeration main pipe 15 and a plurality of third aeration branch pipes 16, wherein the third aeration main pipe 15 is fixedly arranged in the scum area 3, the length direction of the third aeration main pipe is parallel to the length direction of the tank body 1, the plurality of third aeration main pipes 15 are sequentially arranged along the length direction of the third aeration main pipe 15, the upper end of each third aeration main pipe 15 is connected and communicated with the third aeration main pipe 15, and the lower end of each third aeration main pipe 15 is communicated with the scum area 3.
The sand suction system includes a linear drive mechanism, a gas source, a sand suction pump, and a sand suction line 22.
The linear driving mechanism is fixedly arranged on the tank body 1 and comprises two linear transmission parts, a movable frame 19, a rotary transmission part and a rotary driving source. Two linear transmission parts are respectively arranged on the left side wall and the right side wall of the tank body 1, each linear transmission part comprises a chute formed on one side wall of the tank body 1, a sliding block 17 slidably arranged in the chute, and a screw rod 18 rotatably arranged in the chute and in threaded connection with the sliding block 17. The movable frame 19 forms an output end of the linear driving mechanism, and both ends of the movable frame 19 are fixedly connected with the two sliding blocks 17, respectively. The rotary part comprises two synchronous wheels which are respectively and coaxially fixedly arranged at the end part of the screw 18 and a synchronous belt which is synchronously connected with the two synchronous wheels. The rotary driving source is fixed on the wall of the tank body 1, and the output end is coaxially and fixedly connected with the output end of one screw rod 18. The rotary drive source is a motor. This is the prior art and will not be described in detail here.
The air source and the sand sucking pump 21 are respectively and fixedly arranged on the output end of the linear driving mechanism.
The air source is a Roots blower 20.
The inlet of the sand sucking pump 21 is connected and communicated with the sand sucking outlet of the sand sucking pipeline 22, the sand sucking inlet of the sand sucking pipeline 22 stretches into the sand settling zone 5, and the output port of the air source is connected and communicated with the air cavity of the sand sucking pump through the sand sucking air pipe 25. The sand suction pipe 25 is provided with a sand suction electromagnetic valve 29.
The slag sucking system comprises a slag sucking pump 23 and a slag sucking pipeline 24.
The slag sucking pump 23 is fixed on the output end of the linear driving mechanism, and the air cavity of the slag sucking pump 23 is connected and communicated with the output port of the air source through a sand sucking air pipe 25, and a slag sucking electromagnetic valve 30 is arranged on the slag sucking air pipe 26. The inlet of the slag sucking pump 23 is connected and communicated with a slag sucking outlet of the slag sucking pipeline 24, and the outlet is used for being connected into a scum well.
Fig. 2 is a schematic structural diagram of a slag sucking pipeline in an embodiment of the invention.
As shown in fig. 2, the slag suction inlet of the slag suction line 24 extends into the dross region 3. The slag sucking pipeline 24 comprises a connecting pipe 27 and a slag sucking main pipe 28, wherein the lower end of the connecting pipe 27 is provided with internal threads, the upper end of the slag sucking main pipe 28 is provided with external threads, and the connecting pipe 27 is in threaded connection with the slag sucking main pipe 28 so as to be in sealing connection through a sealing ring. The slag suction main pipe 28 is rotated relative to the connecting pipe 27, and the height of the slag suction inlet can be adjusted.
The lower right side water flow of the inner cavity in the second aeration system driving pond moves upwards, the water flow flows to the guide wall 6, then moves leftwards to the scum area 3 under the guiding of the guide wall 6 and the rightward driving action of the first aeration system, and then is driven downwards by the third aeration system, so that the water flow forms a vortex rotating anticlockwise, the sand setting is concentrated and deposited in the sand setting pond by utilizing the vortex principle, the sand removal efficiency is high, and compared with an aeration sand setting pond with the same sand setting capacity, the occupied area can be effectively reduced.
Through first aeration system, drive impurity that density is lighter and flow upwards, through first aeration system for cell body 1 inner chamber upside rivers constantly accumulate to dross district 3, make the dross constantly remove and accumulate to dross district 3, prevent that there is the dross residue in the top of aeration district 4.
When slag is required to be discharged, the linear driving mechanism operates to drive the slag sucking pipeline 24 to move along the length direction (front-rear direction) of the tank body 1, the Roots blower 20 works, the sand sucking electromagnetic valve 29 is closed, the slag sucking electromagnetic valve 30 is opened, and the scum on the surface layer of the scum area 3 is stripped through the slag sucking pipeline 24 for subsequent treatment.
When sand is required to be discharged, the linear driving mechanism operates to drive the sand sucking pipeline 22 to move along the length direction (front-rear direction) of the tank body 1, the Roots blower 20 works, the slag sucking electromagnetic valve 30 is closed, the sand sucking electromagnetic valve 29 is opened, and scum in the sand settling zone 5 is stripped through the sand sucking pipeline 22 for subsequent treatment.
In summary, the present invention is a specific application example, and the protection scope of the present invention is not limited, and the technical scheme of adopting equivalent substitution falls within the protection scope of the present invention.
Claims (4)
1. An aeration grit chamber is characterized by comprising a chamber body; the slag blocking grating plate is fixedly arranged in the tank body so as to divide the inner cavity of the tank body into a scum area and an aeration sand sedimentation area which are arranged side by side left and right, and the aeration sand sedimentation area is sequentially divided into an aeration area and a sand sedimentation area from top to bottom; the aeration system comprises a first aeration system, the first aeration system comprises a first aeration main pipe and a plurality of first aeration branch pipes, one end of the first aeration main pipe is fixedly arranged on the right side wall of the aeration zone, the left ends of the plurality of first aeration branch pipes are connected and communicated with the first aeration main pipe, and the right ends of the plurality of first aeration branch pipes are respectively connected and communicated with the aeration zone; the sand sucking system comprises a linear driving mechanism, an air source, a sand sucking pump and a sand sucking pipeline, wherein the linear driving mechanism is fixedly arranged on the tank body, the sand sucking pump and the air source are respectively fixedly arranged on the output end of the linear driving mechanism, an inlet of the sand sucking pump is connected and communicated with a sand sucking outlet of the sand sucking pipeline, a sand sucking inlet of the sand sucking pipeline stretches into the sand settling zone, and an output port of the air source is connected and communicated with an air cavity of the sand sucking pump through a sand sucking air pipe; the slag sucking system comprises a slag sucking pump and a slag sucking pipeline, the slag sucking pump is fixed at the output end of the linear driving mechanism, an air cavity of the slag sucking pump is connected and communicated with the output port of the air source through a sand sucking air pipe, an inlet of the slag sucking pump is connected and communicated with a slag sucking outlet of the slag sucking pipeline, the outlet is used for being connected with a scum well, and a slag sucking inlet of the slag sucking pipeline stretches into the scum area;
the aeration system further comprises a second aeration system, the second aeration system comprises a second aeration main pipe and a plurality of second aeration branch pipes, the second aeration main pipe is fixedly arranged on the side wall of the sand sedimentation zone, the lower ends of the plurality of second aeration branch pipes are fixedly connected and communicated with the second aeration main pipe, the upper ends of the plurality of second aeration branch pipes are communicated with the sand sedimentation zone, the second aeration system drives water flow at the right lower side of the inner cavity of the tank body to move upwards, and meanwhile, the first aeration system positioned at the right upper side of the second aeration system drives water flow at the right upper side of the inner cavity of the tank body to move leftwards, so that water flow forms a vortex rotating anticlockwise;
the right side wall of the aeration zone is composed of a guide wall and a wall body which are sequentially connected from top to bottom, the guide wall is arc-shaped, water flow at the right lower side of the inner cavity of the tank body moves upwards under the drive of the second aeration system, flows to the guide wall and moves to the left side of the inner cavity of the tank body under the guide action of the guide wall, so that water flow forms a vortex rotating anticlockwise;
the aeration system further comprises a third aeration system, the third aeration system comprises a third aeration main pipe and a plurality of third aeration branch pipes, the third aeration main pipe comprises a floating slag area fixedly arranged, the upper ends of the plurality of third aeration main pipes are connected and communicated with the third aeration main pipe, and the lower ends of the plurality of third aeration main pipes are communicated with the floating slag area;
the slag suction pipeline comprises a connecting pipe and a slag suction main pipe, wherein the lower end of the connecting pipe is provided with internal threads, the upper end of the slag suction main pipe is provided with external threads, and the connecting pipe is in threaded connection with the slag suction main pipe.
2. An aerated grit chamber as in claim 1 wherein the right side arm of the grit chamber comprises an arcuate transition section, a first sloped section and a second sloped section connected in sequence from top to bottom, the sloped angle of the first sloped section being less than the sloped angle of the second sloped section.
3. An aerated grit chamber as in claim 2, wherein said second aerated main tube is fixedly disposed on said first inclined section.
4. An aerated grit chamber according to claim 1, wherein the linear driving mechanism comprises two linear driving parts, a moving frame, a rotary driving part and a rotary driving source, the two linear driving parts are respectively arranged on the left and right side walls of the chamber body, each linear driving part comprises a chute formed on one side wall of the chamber body, a sliding block slidably arranged in the chute, and a screw rod rotatably arranged in the chute and in threaded connection with the sliding block; the movable frame forms an output end of the linear driving mechanism, two ends of the movable frame are fixedly connected with the two sliding blocks respectively, the rotary transmission part comprises two synchronous wheels which are coaxially and fixedly installed at the end parts of the screw rods respectively and a synchronous belt which is synchronously connected with the two synchronous wheels, and the output end of the rotary driving source is coaxially and fixedly connected with the output end of one screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211169566.8A CN115350512B (en) | 2022-09-26 | 2022-09-26 | Aeration grit chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211169566.8A CN115350512B (en) | 2022-09-26 | 2022-09-26 | Aeration grit chamber |
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| Publication Number | Publication Date |
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| CN115350512A CN115350512A (en) | 2022-11-18 |
| CN115350512B true CN115350512B (en) | 2024-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211169566.8A Active CN115350512B (en) | 2022-09-26 | 2022-09-26 | Aeration grit chamber |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08132088A (en) * | 1994-10-31 | 1996-05-28 | Hitachi Kiden Kogyo Ltd | Scum removal device in circulating water channel type aeration tank |
| JPH08309108A (en) * | 1995-05-19 | 1996-11-26 | Hitachi Kiden Kogyo Ltd | How to suppress scum |
| US5874002A (en) * | 1995-10-10 | 1999-02-23 | Cormier; Murphy | Sewage treatment method and apparatus therefor |
| CN103332771A (en) * | 2013-06-30 | 2013-10-02 | 温州中环正源水务有限公司 | Scum treatment device of aerated grit chamber |
| CN203319751U (en) * | 2013-06-30 | 2013-12-04 | 温州中环正源水务有限公司 | Aeration grit chamber scum processing device |
| CN107715513A (en) * | 2017-11-20 | 2018-02-23 | 叶子毓 | A kind of aerated grit chamber and its application method for sewage disposal |
| CN217163310U (en) * | 2022-03-21 | 2022-08-12 | 无锡市政设计研究院有限公司 | Totally enclosed aeration grit chamber |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467282B (en) * | 2018-12-25 | 2023-09-12 | 湖南智水环境科技有限公司 | Sewage treatment equipment suitable for single household domestic sewage treatment |
-
2022
- 2022-09-26 CN CN202211169566.8A patent/CN115350512B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08132088A (en) * | 1994-10-31 | 1996-05-28 | Hitachi Kiden Kogyo Ltd | Scum removal device in circulating water channel type aeration tank |
| JPH08309108A (en) * | 1995-05-19 | 1996-11-26 | Hitachi Kiden Kogyo Ltd | How to suppress scum |
| US5874002A (en) * | 1995-10-10 | 1999-02-23 | Cormier; Murphy | Sewage treatment method and apparatus therefor |
| CN103332771A (en) * | 2013-06-30 | 2013-10-02 | 温州中环正源水务有限公司 | Scum treatment device of aerated grit chamber |
| CN203319751U (en) * | 2013-06-30 | 2013-12-04 | 温州中环正源水务有限公司 | Aeration grit chamber scum processing device |
| CN107715513A (en) * | 2017-11-20 | 2018-02-23 | 叶子毓 | A kind of aerated grit chamber and its application method for sewage disposal |
| CN217163310U (en) * | 2022-03-21 | 2022-08-12 | 无锡市政设计研究院有限公司 | Totally enclosed aeration grit chamber |
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| Publication number | Publication date |
|---|---|
| CN115350512A (en) | 2022-11-18 |
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