CN203613066U - Technical device for preventing tubular membrane of external membrane bio-reactor (MBR) from being blocked - Google Patents
Technical device for preventing tubular membrane of external membrane bio-reactor (MBR) from being blocked Download PDFInfo
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- CN203613066U CN203613066U CN201320416712.2U CN201320416712U CN203613066U CN 203613066 U CN203613066 U CN 203613066U CN 201320416712 U CN201320416712 U CN 201320416712U CN 203613066 U CN203613066 U CN 203613066U
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- tubular membrane
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- sedimentation basin
- settling tank
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Abstract
The utility model relates to the field of landfill leachate treatment, and provides a technical device for preventing an external tubular membrane of a membrane bio-reactor (MBR) from being blocked. The technical device comprises a denitrification tank, a nitration tank, a tubular membrane component and a vertical sedimentation basin, wherein the liquid at the upper part of a nitration pool in the nitration tank flows into the sedimentation basin through the upper end of the sedimentation basin; the water at the middle upper part of the sedimentation basin enters the tubular membrane component. A sludge return pump is also arranged under the sedimentation basin, so that the sludge in the middle of the sedimentation basin returns to the outside of the sedimentation basin according to the running condition. The technical device is reasonable in design and compact in structure; after the technical device is adopted, the activated sludge in the tank is held back, the load of the back tubular membrane is low, and the external tubular membrane is prevented from being blocked; the technical device is high in tubular membrane flux, large in water yield and good in water quality.
Description
Technical field
The utility model relates to the percolate process field of urban refuse sanitary landfill, garbage incinerating power plant, garbage transfer station etc., is specifically related to a kind of process unit of the obstruction that prevents external placed type MBR tubular membrane.
Background technology
Percolate is that a kind of Pollutant levels are high, a kind of waste water that water quality is very complicated.According to the requirement of national environmental protection portion, water outlet reaches the emission standard of GB16889-2008 at present, according to national related specifications, and the general treatment process that adopts " pre-treatment+external placed type MBR membrane bio-reaction system+advanced treatment ".
The technique of the external placed type MBR membrane bio-reaction system using is generally A/O(denitrification tank/nitrating pot)+external placed type tubular membrane composition.This external placed type MBR membrane bio-reaction system is a kind of form of current MBR technique.
MBR technique refers to, film-bioreactor (Membrane Bio-Reactor, MBR) is the Novel state Waste Water Treatment of membrane separation technique and biologic treating technique combination.Replace traditional biological treatment technology end second pond with membrane module, in film-bioreactor, keep high reactivity sludge concentration, improve biological treatment organic loading, thereby reduce sewage treatment facility floor space, and by keeping low sludge loading to reduce surplus sludge volume.
Therefore the external placed type MBR that is generally used at present percolate is made up of denitrification tank, nitrating pot and tubular membrane component three parts exactly.But operation process in, often have tubular membrane stop up, the tubular membrane water outlet water yield reduce, the problem that aquifer yield is little, and if tubular membrane there is obstruction, need stop cleaning, cause this sink drainage problem out of service.Tubular membrane is stopped up serious time worse, need manually the pollution of tubular membrane is drawn out with instrument, and very trouble, and need just can unwater only several days.The blockage problem of tubular membrane was once becoming the bottleneck of external placed type MBR development.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of process unit of the obstruction that prevents external placed type MBR tubular membrane, prevents the obstruction of external placed type tubular membrane, improves the water production rate of tubular membrane.
For solving the problems of the technologies described above, the utility model provides a kind of process unit of the obstruction that prevents external placed type MBR tubular membrane, comprise denitrification tank, nitrating pot and tubular membrane component, it is characterized in that, also comprise vertical sedimentation basin, the liquid on the nitrification tank top in nitrating pot flows in settling tank by the upper end of settling tank, and the middle and upper part water outlet of settling tank enters tubular membrane component.
Preferably, settling tank bottom is communicated with nitrification tank, and like this, the mud in settling tank can flow in nitrification tank, is unlikely and becomes dead mud.
Further optimize, in order to prevent that the mud of settling tank from becoming dead mud, the bottom of described settling tank is communicated with described denitrification tank by return line, and described return line is provided with sludge reflux pump.
Be more preferably, on described return line, be provided with variable valve, according to the running condition of settling tank, open variable valve and reflux pump, mud is back to denitrification tank.
Most preferred, described settling tank is the open straight-tube shape device of a upper and lower ends, and described straight-tube shape device is vertically positioned at nitrating pot.
Garbage leachate treatment device of the present utility model is reliable, and integrated level is high, has effectively held back active sludge, has prevented the obstruction of external placed type tubular membrane, makes again the load reduction of tubular membrane component, has improved the producing water ratio of tubular membrane.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is further described in detail.
Fig. 1 is embodiment structural front view of the present utility model.
Fig. 2 is the vertical view that in embodiment structure of the present utility model, nitrating pot is connected with tubular membrane component.
Embodiment
Shown in Fig. 1,2, first water inlet enters in denitrification tank 10, and the top water outlet of denitrification tank 10 enters nitrating pot 20, and denitrification tank 10 is communicated with by return line with the bottom of nitrating pot 20, and return line is provided with reflux pump 5 and variable valve 6.The aeration tube that is provided with gas blower 4 leads to the bottom of the interior nitrification tank 1 of nitrating pot 20.The interior vertical-flow settling tank 2 that is provided with of nitrating pot 20, settling tank 2 is the open straight cylinder 3 of a upper and lower ends, the liquid on nitrification tank 1 top flows in settling tank 2 by the upper end of straight cylinder 3, and the middle and upper part water outlet of settling tank 2 enters tubular membrane component 30 by nitrating pot 20 walls.The bottom of settling tank 2 is communicated with nitrification tank 1, and like this, the mud in settling tank 2 can flow in nitrification tank 1, is unlikely and becomes dead mud.In addition, in order to prevent that the mud of settling tank from becoming dead mud, be provided with separately variable valve 7, according to the running condition of settling tank 2, open variable valve 7 and reflux pump 5, mud is back to front end denitrification tank 20.
By settling tank 2, the active sludge in nitrating pot is tentatively collected, to reduce the load that enters tubular membrane, also allowed a part of mud enter tubular membrane system simultaneously.Through practice operation testing identity, garbage leachate treatment device of the present utility model is reliable, and integrated level is high, effectively hold back active sludge, prevent the obstruction of external placed type tubular membrane, made again the load reduction of tubular membrane component, improved the producing water ratio of tubular membrane.
Certainly, those skilled in the art will find apparent that settling tank 2 nonessential being located in nitrating pot 20.Settling tank 2 is separately set in outside nitrating pot 20, is communicated with up and down with nitrating pot 20, can reach the technique effect same with above-mentioned embodiment, therefore repeat no more.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (5)
1. one kind prevents the process unit of the obstruction of external placed type MBR tubular membrane, comprise denitrification tank, nitrating pot and external placed type tubular membrane component, it is characterized in that, also comprise vertical sedimentation basin, the liquid on the nitrification tank top in described nitrating pot flows in settling tank by the upper end of described settling tank, and the middle and upper part water outlet of described settling tank enters described tubular membrane component.
2. the process unit of a kind of obstruction that prevents external placed type MBR tubular membrane according to claim 1, is characterized in that, described settling tank bottom is communicated with described nitrification tank.
3. the process unit of the obstruction that prevents external placed type MBR tubular membrane according to claim 1 and 2, is characterized in that, the bottom of described settling tank is communicated with described denitrification tank by return line, and described return line is provided with sludge reflux pump.
4. the process unit of the obstruction that prevents external placed type MBR tubular membrane according to claim 3, is characterized in that, on described return line, is provided with variable valve.
5. the process unit of the obstruction that prevents external placed type MBR tubular membrane according to claim 1, is characterized in that, described settling tank is the open straight-tube shape device of a upper and lower ends, and described straight-tube shape device is vertically positioned at nitrating pot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416712.2U CN203613066U (en) | 2013-07-12 | 2013-07-12 | Technical device for preventing tubular membrane of external membrane bio-reactor (MBR) from being blocked |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416712.2U CN203613066U (en) | 2013-07-12 | 2013-07-12 | Technical device for preventing tubular membrane of external membrane bio-reactor (MBR) from being blocked |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203613066U true CN203613066U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320416712.2U Expired - Lifetime CN203613066U (en) | 2013-07-12 | 2013-07-12 | Technical device for preventing tubular membrane of external membrane bio-reactor (MBR) from being blocked |
Country Status (1)
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| CN (1) | CN203613066U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773921A (en) * | 2015-04-14 | 2015-07-15 | 江南大学 | Tube membrane device for sewage treatment |
| CN105800779A (en) * | 2016-05-21 | 2016-07-27 | 桂林理工大学 | Method for achieving stable operation of anaerobic membrane bioreactor |
| CN106517490A (en) * | 2016-11-15 | 2017-03-22 | 胡明成 | Sewage treatment system with external MBR (Membrane Bioreactor) |
-
2013
- 2013-07-12 CN CN201320416712.2U patent/CN203613066U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773921A (en) * | 2015-04-14 | 2015-07-15 | 江南大学 | Tube membrane device for sewage treatment |
| CN105800779A (en) * | 2016-05-21 | 2016-07-27 | 桂林理工大学 | Method for achieving stable operation of anaerobic membrane bioreactor |
| CN105800779B (en) * | 2016-05-21 | 2018-09-11 | 桂林理工大学 | A method of realizing anaerobic membrane bioreactor stable operation |
| CN106517490A (en) * | 2016-11-15 | 2017-03-22 | 胡明成 | Sewage treatment system with external MBR (Membrane Bioreactor) |
| CN106517490B (en) * | 2016-11-15 | 2019-06-07 | 胡明成 | A kind of external MBR sewage disposal system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |
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| CX01 | Expiry of patent term |