CN207713487U - A kind of aerobic sludge reflux - Google Patents
A kind of aerobic sludge reflux Download PDFInfo
- Publication number
- CN207713487U CN207713487U CN201721802102.0U CN201721802102U CN207713487U CN 207713487 U CN207713487 U CN 207713487U CN 201721802102 U CN201721802102 U CN 201721802102U CN 207713487 U CN207713487 U CN 207713487U
- Authority
- CN
- China
- Prior art keywords
- sludge
- pipe
- sludge reflux
- aeration tank
- mud
- 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
Classifications
-
- 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
- Activated Sludge Processes (AREA)
Abstract
The utility model proposes a kind of aerobic sludge refluxes, including aeration tank, secondary settling tank and sludge reflux pond, and first pipe is provided between aeration tank and secondary settling tank, and aeration tank water outlet is connected to by first pipe with secondary settling tank water inlet；Second pipe is provided between secondary settling tank and sludge reflux pond, the bottom of secondary settling tank is connected to by second pipe with sludge reflux pond；The water outlet for clear liquid to be discharged is provided at the top of secondary settling tank；The bottom in sludge reflux pond is provided with mud discharging mouth；The mud discharging mouth in sludge reflux pond is connected with sludge pump, and the outlet of sludge pump is connected with sludge pipe, and the other end of sludge pipe is connected with sludge reflux supervisor and the outer comb of sludge；The other end of sludge reflux supervisor is connected at least two sludge reflux branch pipes；It is respectively provided on every sludge reflux branch pipe there are one sludge outlet group, each sludge outlet group is provided at least one mud mouth, and mud mouth is located above aeration tank.The aerobic sludge reflux can be such that returned sludge is more evenly distributed in aeration tank, improve effect of inoculation, while enhancing aerating system impact resistance and Load adjustment ability.
Description
Technical field：
The utility model belongs to sewage treatment field, is related to a kind of aerobic sludge reflux.
Background technology：
In the activated sludge method processing technique of sewage treatment plant, sewage has in aeration tank through microbial degradation is therein
After machine pollutant, enters and carry out mud-water separation in secondary settling tank, supernatant liquor discharge, lower layer's sludge reflux to aerating system conduct
Seed sludge.Currently, sewage treatment plant is usually by some fixed position of sludge reflux to aeration tank, it is dirty to be easy to cause reflux
Mud is unevenly distributed, and influences the effect of inoculation of microorganism；And the impact resistance of aerating system is poor；Aerating system is in load change
When be not easily adjusted.
Utility model content：
The utility model proposes a kind of aerobic sludge reflux, which can make returned sludge
It is more evenly distributed in aeration tank, improves effect of inoculation, while enhancing aerating system impact resistance and Load adjustment energy
Power.
Specific technical solution is as follows：
A kind of aerobic sludge reflux, including aeration tank, secondary settling tank and sludge reflux pond, aeration tank and secondary settling tank it
Between be provided with first pipe, aeration tank water outlet is connected to by first pipe with secondary settling tank water inlet；In secondary settling tank and sludge reflux
Second pipe is provided between pond, the bottom of secondary settling tank is connected to by second pipe with sludge reflux pond；It is set at the top of secondary settling tank
It is equipped with the water outlet for clear liquid to be discharged；The bottom in sludge reflux pond is provided with mud discharging mouth；The mud discharging mouth in sludge reflux pond connects
It is connected to sludge pump, the outlet of sludge pump is connected with sludge pipe, and the other end of sludge pipe is connected with outside sludge reflux supervisor and sludge
Comb；The other end of sludge reflux supervisor is connected at least two sludge reflux branch pipes；It is respectively provided on every sludge reflux branch pipe
There are one sludge outlet group, each sludge outlet group is provided at least one mud mouth, and mud mouth is located above aeration tank.
The aerobic sludge reflux, it is each dirty when the quantity of the mud mouth in each sludge outlet group is more than 1
Mud mouth in mud outlet group is linearly evenly distributed along the parallel direction of pool wall where the water inlet with aeration tank, along aeration tank
Water (flow) direction, the first sludge outlet group is located at aeration tank water inlet, the water where mud mouth in adjacent sludge outlet group
The distance between flat line is the 1/5 to 1/3 of the length of the water (flow) direction of aeration tank.
The aerobic sludge reflux, when the quantity of the mud mouth in each sludge outlet group is 1, mud mouth position
The middle part perpendicular to water (flow) direction in aeration tank, the water (flow) direction along aeration tank, the first mud mouth are located at aeration tank water inlet
At mouthful, the distance between adjacent mud mouth is the 1/5 to 1/3 of the length of the water (flow) direction of aeration tank.
The aerobic sludge reflux, being oriented for mud mouth is downward or horizontal, and the lower edge of mud mouth is higher than
The setting water level of aeration tank or the lower edge of mud mouth are less than the setting water level of aeration tank.
The aerobic sludge reflux is both provided with flowmeter and to adjust dirt on every sludge reflux branch pipe
The valve of mudflow amount.
The aerobic sludge reflux is both provided with flowmeter and use outside sludge reflux supervisor and sludge on comb
With the valve of conditioning of mud flow.
The working process of the utility model is as follows：Enter aeration tank by pretreated sewage early period, utilizes the activity in pond
Organic matter in sludge degradation sewage, then sewage enter secondary settling tank through first pipe and carry out mud-water separation, at the middle and upper levels clear water
It is discharged into sewage discharge manifold by water outlet or enters aftertreatment device, lower layer's sludge enters sludge reflux through second pipe
Pond, the sludge in sludge reflux pond are delivered to sludge pipe after mud discharging mouth is discharged, by sludge pump, and a part of sludge is logical in sludge pipe
It crosses sludge reflux supervisor and sludge reflux branch pipe is back to aeration tank, another part sludge does follow-up place through comb discharge outside sludge
Reason.The flowmeter and valve being arranged on sludge reflux supervisor are used for controlling returned sludge total amount；It is arranged on sludge reflux branch pipe
Flowmeter and valve are used for controlling the sludge back flow quantity of every sludge reflux branch pipe, to realize that returned sludge segmentation flows into,
Even distribution.Flowmeter and valve on the outer comb of sludge are used for controlling the outer discharge capacity of sludge, are risen for accurately controlling sludge reflux amount
To booster action.
Description of the drawings：
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the aeration tank horizontal layout schematic diagram when the quantity of the mud mouth in each sludge outlet group is more than 1.
Fig. 3 is the aeration tank horizontal layout schematic diagram when the quantity of the mud mouth in each sludge outlet group is 1.
Wherein：1. aeration tank, 2. secondary settling tanks, 3. sludge reflux ponds, 4. sludge pumps, 5. sludge pipes, 6. sludge refluxes supervisor,
7. sludge reflux branch pipe, 8. first pipes, 9. second pipes, the outer comb of 10. sludge, 11. first sludge outlet groups, 12. other
Sludge outlet group, 13. mud mouths, 14. first mud mouths, 15. supervisor's valves, 16. main conduit flows meter, 17. branch pipe valves, 18.
Branch flowmeter for pipe, the outer comb valve of 19. sludge, the outer comb flowmeter of 20. sludge.
Specific implementation mode
As depicted in figs. 1 and 2, when the quantity of the mud mouth in each sludge outlet group is more than 1, the utility model, one
Kind aerobic sludge reflux, including aeration tank 1, secondary settling tank 2 and sludge reflux pond 3, set between aeration tank 1 and secondary settling tank 2
It is equipped with first pipe 8, the water outlet of aeration tank 1 is connected to by first pipe 8 with the water inlet of secondary settling tank 2；In secondary settling tank 2 and sludge
Second pipe 9 is provided between backflow pool 3, the bottom of secondary settling tank 2 is connected to by second pipe 9 with sludge reflux pond 3；In secondary settling tank
2 top is provided with the water outlet for clear liquid to be discharged；The bottom in sludge reflux pond 3 is provided with mud discharging mouth；Sludge reflux pond 3
Mud discharging mouth be connected with sludge pump 4；The outlet of sludge pump 4 is connected with sludge pipe 5；The other end of sludge pipe 5 is connected with sludge and returns
Stream is responsible for comb 10 outside 6 and sludge；The other end of sludge reflux supervisor 6 is connected at least two sludge reflux branch pipes 7；Every dirt
It is respectively provided with there are one sludge outlet group on mud reflux branch pipe 7, each sludge outlet group is provided at least two mud mouths 13, mud extraction
Mouth 13 is located at 1 top of aeration tank.As depicted in figs. 1 and 2, the mud mouth 13 in each sludge outlet group is along the water inlet with aeration tank
The parallel direction of pool wall where mouthful is linearly evenly distributed；Water (flow) direction along aeration tank 1, the first sludge outlet group 11, which is located at, to expose
1 water inlet of gas pond, the distance between horizontal linear where mud mouth in adjacent sludge outlet group are the flow of aeration tank 1
The 1/5 to 1/3 of the length in direction.It is both provided with branch pipe valve 17 and branch flowmeter for pipe 18 on every sludge reflux branch pipe 7；
Supervisor's valve 15 and main conduit flow's meter 16 are provided on sludge reflux supervisor 6；It is provided with outside sludge and arranges on comb 10 outside sludge
Comb flowmeter 20 outside tube valve 19 and sludge.
As shown in figures 1 and 3, when the quantity of the mud mouth in each sludge outlet group is 1, the utility model is a kind of
Aerobic sludge reflux, including aeration tank 1, secondary settling tank 2 and sludge reflux pond 3, are arranged between aeration tank 1 and secondary settling tank 2
There are first pipe 8, first pipe 8 to be connected to the water outlet of aeration tank 1 with the water inlet of secondary settling tank 2；It is returned in secondary settling tank 2 and sludge
Stream is provided with second pipe 9 between pond 3, and the bottom of secondary settling tank 2 is connected to by second pipe 9 with sludge reflux pond 3；In secondary settling tank 2
Top be provided with the water outlet for clear liquid to be discharged；The bottom in sludge reflux pond 3 is provided with mud discharging mouth；Sludge reflux pond 3
Mud discharging mouth be connected with sludge pump 4；The outlet of sludge pump 4 is connected with sludge pipe 5；The other end of sludge pipe 5 is connected with sludge and returns
Stream is responsible for comb 10 outside 6 and sludge；The other end of sludge reflux supervisor 6 is connected at least two sludge reflux branch pipes 7；Every dirt
1 mud mouth is both provided on mud reflux branch pipe 7, mud mouth is located at 1 top of aeration tank.As shown in figures 1 and 3, mud mouth position
The middle part perpendicular to water (flow) direction in aeration tank, the water (flow) direction along aeration tank, the first mud mouth 14 be located at aeration tank into
At the mouth of a river, the distance between adjacent mud mouth is the 1/5 to 1/3 of the length of the water (flow) direction of aeration tank.It is returned in every sludge
It is both provided with branch pipe valve 17 and branch flowmeter for pipe 18 on stream branch pipe 7；Supervisor's 15 He of valve is provided on sludge reflux supervisor 6
Main conduit flow's meter 16；Comb flowmeter 20 comb valve 19 and sludge outside is provided with outside sludge on comb 10 outside sludge.
Enter aeration tank 1 by pretreated sewage early period, the organic matter in sewage of being degraded using the activated sludge in pond,
Then sewage enters the progress mud-water separation of secondary settling tank 2 through first pipe 8, and clear water is discharged into sewage discharge by water outlet at the middle and upper levels
Manifold enters aftertreatment device, and lower layer's sludge enters sludge reflux pond 3, the sludge in sludge reflux pond 3 through second pipe 9
After mud discharging mouth is discharged, sludge pipe 5 is delivered to by sludge pump 4, a part of sludge in sludge pipe 5 enters sludge reflux supervisor 6,
Another part sludge enters comb 10 outside sludge.Outside into sludge the sludge of comb 10 by comb valve 19 outside sludge and sludge outside
Comb flowmeter 20 controls flow, and subsequent processing is done in discharge.Sludge into sludge reflux supervisor 6 by supervisor's valve 15 and is responsible for
Flowmeter 16 controls flow, is discharged into sludge reflux branch pipe 7；Mud discharge in every sludge reflux branch pipe 7 is by branch pipe valve 17
It is controlled with branch flowmeter for pipe 18, last sludge is discharged by the mud mouth in sludge outlet group in aeration tank 1.
Claims (6)
1. a kind of aerobic sludge reflux, including aeration tank, secondary settling tank and sludge reflux pond, it is characterised in that：In aeration tank
First pipe is provided between secondary settling tank, aeration tank water outlet is connected to by first pipe with secondary settling tank water inlet；In secondary settling tank
Second pipe is provided between sludge reflux pond, the bottom of secondary settling tank is connected to by second pipe with sludge reflux pond；It is heavy two
The water outlet for clear liquid to be discharged is provided at the top of pond；The bottom in sludge reflux pond is provided with mud discharging mouth；Sludge reflux pond
Mud discharging mouth be connected with sludge pump, the outlet of sludge pump is connected with sludge pipe, and the other end of sludge pipe is connected with sludge reflux master
Pipe and the outer comb of sludge；The other end of sludge reflux supervisor is connected at least two sludge reflux branch pipes；Every sludge reflux branch
It is respectively provided on pipe there are one sludge outlet group, each sludge outlet group is provided at least one mud mouth, and mud mouth is located at aeration
Above pond.
2. aerobic sludge reflux according to claim 1, which is characterized in that the mud extraction in each sludge outlet group
When the quantity of mouth is more than 1, the mud mouth in each sludge outlet group is along the direction parallel with the water inlet of aeration tank place pool wall
Linear evenly distributed, the water (flow) direction along aeration tank, first sludge outlet group are located at aeration tank water inlet, adjacent sludge
The distance between horizontal linear where mud mouth in outlet group is the 1/5 to 1/3 of the length of the water (flow) direction of aeration tank.
3. aerobic sludge reflux according to claim 1, which is characterized in that the mud extraction in each sludge outlet group
Mouthful quantity when being 1, mud mouth is located at the middle part perpendicular to water (flow) direction of aeration tank, the water (flow) direction along aeration tank, the
One mud mouth is located at aeration tank water inlet, and the distance between adjacent mud mouth is the length of the water (flow) direction of aeration tank
1/5 to 1/3.
4. aerobic sludge reflux according to claim 1, which is characterized in that mud mouth is oriented downward or water
Flat, the lower edge of mud mouth is less than the setting water of aeration tank higher than the setting water level of aeration tank or the lower edge of mud mouth
Position.
5. aerobic sludge reflux according to claim 1, which is characterized in that be all provided on every sludge reflux branch pipe
It is equipped with flowmeter and the valve to conditioning of mud flow.
6. aerobic sludge reflux according to claim 1, which is characterized in that arranged outside sludge reflux supervisor and sludge
Flowmeter and the valve to conditioning of mud flow are both provided on pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721802102.0U CN207713487U (en) | 2017-12-21 | 2017-12-21 | A kind of aerobic sludge reflux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721802102.0U CN207713487U (en) | 2017-12-21 | 2017-12-21 | A kind of aerobic sludge reflux |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207713487U true CN207713487U (en) | 2018-08-10 |
Family
ID=63056844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721802102.0U Active CN207713487U (en) | 2017-12-21 | 2017-12-21 | A kind of aerobic sludge reflux |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207713487U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028200A (en) * | 2019-04-24 | 2019-07-19 | 东南大学 | A kind of small-sized purification tank mixed liquor regurgitant volume self-checking device and adjusting method |
-
2017
- 2017-12-21 CN CN201721802102.0U patent/CN207713487U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028200A (en) * | 2019-04-24 | 2019-07-19 | 东南大学 | A kind of small-sized purification tank mixed liquor regurgitant volume self-checking device and adjusting method |
| CN110028200B (en) * | 2019-04-24 | 2021-08-24 | 东南大学 | A kind of small purification tank mixed liquid return flow automatic adjustment device and adjustment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108249573A (en) | A kind of biologic purifying pot for sewage disposal | |
| CN107215939A (en) | A kind of low-carbon energy-saving type sedimentary adjustive pool | |
| CN207713487U (en) | A kind of aerobic sludge reflux | |
| CN105084548B (en) | A kind of high efficient block artificial swamp based on new packing bed | |
| CN203545784U (en) | Combined type oxidation ditch with external sedimentation basin | |
| CN108083551A (en) | Domestic sewage in rural areas distributed processing system | |
| CN207451639U (en) | A kind of unpowered autompulse water-distributing device | |
| CN204111403U (en) | A kind of siphon aerating apparatus | |
| CN208802967U (en) | A kind of integration micro energy consumption rural sewage treatment equipment | |
| CN207685083U (en) | A kind of high efficiency sewage treatment facility | |
| CN106242169A (en) | Utilize polluted river water as the optimum landscape water body system of supplementary water | |
| CN219058705U (en) | Jet aeration composite constructed wetland device | |
| CN206940526U (en) | A kind of modified form SBR sewage disposal systems | |
| CN207108741U (en) | L-type flow-guiding type MBBR integrated sewage treating apparatus | |
| CN205740660U (en) | A kind of mud embrane method integrated treatment unit | |
| CN110540298A (en) | A Constructed Wetland System Using Dredging Tubes to Prevent Blockage | |
| CN215712075U (en) | Ecological treatment system for denitrification of aquaculture wastewater | |
| CN209292062U (en) | Device for rapid treatment of high-concentration organic wastewater by continuous back-fraction activated sludge | |
| CN107720956A (en) | A kind of efficient double-cycling anaerobic reactor | |
| CN208345856U (en) | A kind of river regulation purification device | |
| CN206089335U (en) | Sludge returning device | |
| CN207581466U (en) | A kind of oxidation ditch biological treatment system | |
| CN208327523U (en) | A kind of biologic purifying pot for sewage treatment | |
| CN206783472U (en) | Aeration manual controlled infusion for sanitary sewage disposal | |
| CN205024000U (en) | Automatic control formula S separates water course sewage treatment integration equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |