CN208394989U - A kind of biological treatment system high concentration sludge return-flow system - Google Patents
A kind of biological treatment system high concentration sludge return-flow system Download PDFInfo
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- CN208394989U CN208394989U CN201820595982.7U CN201820595982U CN208394989U CN 208394989 U CN208394989 U CN 208394989U CN 201820595982 U CN201820595982 U CN 201820595982U CN 208394989 U CN208394989 U CN 208394989U
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Abstract
A kind of biological treatment system high concentration sludge return-flow system, it is characterized by comprising biological tank, secondary settling tank, returned sludge concentration basins, the biological tank is connected with secondary settling tank by pipeline, the secondary settling tank is connected with returned sludge concentration basin by sludge pipe, returned sludge pump house is equipped between the returned sludge concentration basin and biological tank, the both ends of the returned sludge pump house are connected with returned sludge concentration basin and biological tank respectively by high concentration reflux sludge tube, the biological tank is equipped with water inlet pipe, and the secondary settling tank is equipped with outlet pipe and excess sludge pipe.The utility model uses concentration returned sludge, can make the reduction of returned sludge moisture content, and sludge back flow quantity can be reduced, and saves power consumption, while saving the volume of biological tank, improves the effective stay time of biological tank, belong to sewage treatment field.
Description
Technical field
The utility model relates to sewage treatment field more particularly to a kind of biological treatment system high concentration sludge reflux systems
System.
Background technique
Sewage Biological Treatment is that the general name of sewage is handled with the method for biology, mainly by the decomposition handle of microorganism
Dirty Organic substance in water is converted into simple inorganic matter, makes to purify the sewage.Sewage Biological Treatment effect is good, and expense is low, technology
Relatively simple, application is fairly simple.
Usually there is the operation of sludge reflux in Sewage Biological Treatment, sludge reflux mainly includes following effect: one, will
Sludge reflux continues to serve as microbe carrier.Activated sludge process is the big method in wastewater biochemical processing, with activated sludge glue
Group is used as microorganism carrier, so that microorganism grown, bred in the carrier, and play the role of sewage purification, this carrier is compared
It is easier to be lost under the effects of biofilm is in water flow, aeration；Two, supplementary carbon source and activated sludge bacterium colony, by by sludge
It flows back and flows back into the sludge for the entrainment microorganism that part is lost and carbon source in active oxidation pond again；Three, guarantee biology
Bacterium implantation condition, and can be therefore according to the shape of sludge quantity formed floc sedimentation under conditions of abundance, and then judge the fortune of system
Row state；Four, the biomass in biological tank is kept, the impact resistance of system is improved, reduces the influence of water flow variation.
Conventional returned sludge moisture content is 99.2% or so, and moisture content is high, and sludge back flow quantity is big, occupies the appearance of biological tank
Product is big.The sludge reflux method that therefore, it is necessary to study moisture content is small, sludge back flow quantity is few, low energy consumption.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of biological treatment system high concentration sludge reflux system
System.
A kind of biological treatment system high concentration sludge return-flow system, it is characterised in that: including biological tank, secondary settling tank, reflux
Sludge concentration tank, the biological tank are connected with secondary settling tank by pipeline, and the secondary settling tank and returned sludge concentration basin pass through row
Mud pipe is connected, and returned sludge pump house is equipped between the returned sludge concentration basin and biological tank, the returned sludge pump house
Both ends are connected with returned sludge concentration basin and biological tank respectively by high concentration reflux sludge tube, the biological tank be equipped with into
Water pipe, the secondary settling tank are equipped with outlet pipe and excess sludge pipe.
The beneficial effects of the utility model are: this patent can be such that returned sludge contains using concentration returned sludge in short-term
Water rate is down to 97%, and sludge back flow quantity can reduce 73%, greatly reduces sludge quantity, saves energy consumption, while saving biological tank
Volume or improve the effective stay time of biological tank.
Detailed description of the invention
Fig. 1 is the process flow chart of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.
A kind of biological treatment system high concentration sludge return-flow system as shown in Figure 1, including biological tank 2, secondary settling tank 3, return
Sludge concentration tank 6 is flowed, the biological tank 2 is connected with secondary settling tank 3 by pipeline, the secondary settling tank 3 and returned sludge concentration basin 6
It is connected by sludge pipe 5, returned sludge pump house 8, the reflux is equipped between the returned sludge concentration basin 6 and biological tank 2
The both ends of sludge pump house 8 are connected with returned sludge concentration basin 6 and biological tank 2 respectively by high concentration reflux sludge tube 7, described
Biological tank 2 is equipped with water inlet pipe 1, and the secondary settling tank 3 is equipped with outlet pipe 4 and excess sludge pipe 9.
In the returned sludge concentration basin 6, the concentration time to returned sludge is 4-6h.
Embodiment one: shown in reference to the accompanying drawings, a kind of biological treatment system high concentration sludge reflow method includes: water inlet pipe 1,
Biological tank 2, secondary settling tank 3, outlet pipe 4, sludge pipe 5, returned sludge concentration basin 6, high concentration reflux sludge tube 7, return sludge pump
Room 8, excess sludge pipe 9.Concentration time in returned sludge concentration basin 6 is 4h, returned sludge moisture content 98%.
Embodiment two: shown in reference to the accompanying drawings, a kind of biological treatment system high concentration sludge reflow method includes: water inlet pipe 1,
Biological tank 2, secondary settling tank 3, outlet pipe 4, sludge pipe 5, returned sludge concentration basin 6, high concentration reflux sludge tube 7, return sludge pump
Room 8, excess sludge pipe 9.Concentration time in returned sludge concentration basin 6 is 6h, returned sludge moisture content 97%.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Using equivalent structure or equivalent flow shift made by the utility model description, it is applied directly or indirectly in other phases
The technical field of pass, is also included in the patent protection scope of the utility model.
Claims (1)
1. a kind of biological treatment system high concentration sludge return-flow system, it is characterised in that: including biological tank (2), secondary settling tank (3),
Returned sludge concentration basin (6), the biological tank (2) are connected with secondary settling tank (3) by pipeline, the secondary settling tank (3) and reflux
Sludge concentration tank (6) is connected by sludge pipe (5), and reflux is equipped between the returned sludge concentration basin (6) and biological tank (2)
The both ends of sludge pump house (8), the returned sludge pump house (8) are dense with returned sludge respectively by high concentration reflux sludge tube (7)
Contracting pond (6) is connected with biological tank (2), and the biological tank (2) is equipped with water inlet pipe (1), and the secondary settling tank (3) is equipped with water outlet
Manage (4) and excess sludge pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820595982.7U CN208394989U (en) | 2018-04-25 | 2018-04-25 | A kind of biological treatment system high concentration sludge return-flow system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820595982.7U CN208394989U (en) | 2018-04-25 | 2018-04-25 | A kind of biological treatment system high concentration sludge return-flow system |
Publications (1)
| Publication Number | Publication Date |
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| CN208394989U true CN208394989U (en) | 2019-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820595982.7U Active CN208394989U (en) | 2018-04-25 | 2018-04-25 | A kind of biological treatment system high concentration sludge return-flow system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110182942A (en) * | 2019-05-30 | 2019-08-30 | 中国市政工程中南设计研究总院有限公司 | A kind of high-efficiency activated sludge treatment technique |
-
2018
- 2018-04-25 CN CN201820595982.7U patent/CN208394989U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110182942A (en) * | 2019-05-30 | 2019-08-30 | 中国市政工程中南设计研究总院有限公司 | A kind of high-efficiency activated sludge treatment technique |
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