CN203079806U - Water treatment device for reusing reclaimed water - Google Patents
Water treatment device for reusing reclaimed water Download PDFInfo
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- CN203079806U CN203079806U CN 201320109342 CN201320109342U CN203079806U CN 203079806 U CN203079806 U CN 203079806U CN 201320109342 CN201320109342 CN 201320109342 CN 201320109342 U CN201320109342 U CN 201320109342U CN 203079806 U CN203079806 U CN 203079806U
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Abstract
The utility model discloses a water treatment device for reusing reclaimed water, which comprises an anaerobic tank, an aerobic tank and an MBR filter tank in sequential arrangement, wherein the anaerobic tank is provided with a sewage inlet pipe; and the aerobic tank is provided with an aeration pipe. The water treatment device is characterized in that the aerobic tank is also provided with a reflux pump, wherein a backflow pipe of the reflux pump is respectively led to the anaerobic tank and the MBR filter tank; a flat membrane component is arranged in the MBR filter tank, and non-biodegradable particles are added; and the aerobic tank is communicated with the MBR filter tank, and a screen capable of intercepting the non-biodegradable particles is arranged at the joint. The device disclosed by the utility model can guarantee relatively high membrane flux without performing chemical cleaning for a long time, thus the operation management and maintenance are simple and convenient, and the operation cost is lowered.
Description
Technical field
The utility model relates to a kind of water treatment device, relates to a kind of water treatment device of middle water reuse particularly.
Background technology
Because industrial expansion and population increase, the water resources worsening shortages.Reusing sewage has been imperative.Adopt the reusing sewage technology, municipal effluent, industrial sewage can get nearby, can remove long distance water transfer from, realize the making full use of of water resources and realize handling nearby, sewage can prevent also that through handling sewage from causing effluent seepage in growing apart from course of conveying, cause the polluted underground water source nearby simultaneously.Reusing sewage in the world the area of many lacks of water extensively adopt, be considered to the practical technique of 21 century sewage disposal.Membrane bioreactor in the prior art (membrane bioreactor, MBR), because the effluent quality good stable is used widely.
Membrane bioreactor is the new kenel Waste Water Treatment of membrane separation technique and biologic treating technique combination.Replace the terminal second pond of traditional biological treatment technology with membrane module, in bio-reactor, keep the high reactivity sludge concentration, improve the biological treatment organic loading, thereby reduce the sewage treatment facility floor space, and by keeping low sludge loading to reduce surplus sludge volume.Membrane bioreactor can keep long microorganism of generation cycle because of its effective crown_interception, can realize that to deep purification of waste water nitrifier can fully breed in system simultaneously, and its nitrification effect is obvious, and denitrogenation provides possibility to deep phosphorous removal.
But the membrane bioreactor water treatment device is along with the increase of working time, and film pollutes can be more and more serious, has a strong impact on efficient and cost that this device is disposed of sewage.Current research has gone out the method for a lot of decelerating membrane pollutions, but all complicated operation and running cost are very high.People come decelerating membrane pollution seeking a kind of way of saving cost again simple to operate.
The utility model content
Main purpose of the present utility model is to provide a kind of water treatment device of middle water reuse, to overcome the deficiency of existing membrane bioreactor.
The technical solution of the utility model is as follows:
The water treatment device of water reuse in a kind of, comprise an anoxic pond, an Aerobic Pond and a MBR filter tank of arranging in turn, described anoxic pond is established sewage water inlet pipe, described Aerobic Pond is provided with aeration tube, it is characterized in that: described Aerobic Pond also is provided with and is used for reflux pump, and the return line of reflux pump leads to anoxic pond and MBR filter tank respectively; Described MBR is provided with plate film assembly in the filter tank, and is added with the difficult for biological degradation particle, and Aerobic Pond and MBR filter tank communicate, and the place of communicating is provided with can tackle difficult for biological degradation particulate screen cloth.
In preferred embodiment of the present utility model, described plate film assembly be can backwash plate film assembly, a branch road of the rising pipe of described plate film assembly connects a backwash water tank.
The particle of difficult for biological degradation described in the utility model can be made by following material, for example polyethylene, polyvinyl chloride, tool carbonic ether, urethane, polypropylene etc.Shape can be spherical, column, polyhedron shape etc.In preferred embodiment of the present utility model, described particulate diameter is 3-7mm.More preferably, described particulate diameter is 3-5mm
In preferred embodiment of the present utility model, the aperture of described screen cloth is less than 3mm.More preferably, in the scope of 0.5-2.5mm.The best is 1.5-2.5mm.
In preferred embodiment of the present utility model, the flat sheet membrane bottom is provided with aeration tube.
In preferred embodiment of the present utility model, bottom, described MBR filter tank also is provided with the excess sludge discharge pipe.
The utlity model has following advantage: the particle that 1, is arranged in the MBR filter tank clashes into the flat sheet membrane surface under the aeration effect, destroy flat sheet membrane surface schmutzband, flat sheet membrane is carried out backwash simultaneously, and the removal effect of reinforcing membrane surface schmutzband has been slowed down the speed that film pollutes greatly.2, the sludge reflux pump that is positioned at Aerobic Pond can make the mud in filter tank obtain refluxing, and mud such as dissolved oxygen height is back to Aerobic Pond and improves the Aerobic Pond dissolved oxygen, reduction Aerobic Pond aeration rate, energy efficient in the filter tank in.3, being positioned at screen cloth between Aerobic Pond and filter tank can cross the particle that prevents difficult for biological degradation and run off with returned sluge.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that membrane bioreactor cleans synoptic diagram automatically.
1. anoxic pond among Fig. 1,2. Aerobic Pond, 3.MBR filter tank, 4. water inlet pipe, 5. sludge reflux pump, 6. boring aeration pipe, 7. screen cloth, 8. plate film assembly, 9. difficult for biological degradation particle, 10. suction pump, 11. gas blowers, 12. rising pipes, 13. the backwash water tank, 14. housings, 15. blast mains, 16. mud return line, 17. excess sludge discharge pipes.
18. aeration tubes among Fig. 2,19. flat sheet membrane.
Embodiment
Referring to Fig. 1, the water treatment device of water reuse in a kind of, comprise anoxic pond 1, Aerobic Pond 2 and the MBR filter tank 3 of arranging in turn, described anoxic pond 1 is established sewage water inlet pipe 4, described Aerobic Pond 2 bottoms are provided with aeration tube, also be provided with reflux pump 5, the return line of reflux pump 5 leads to anoxic pond 1 and MBR filter tank 3 respectively; Be provided with plate film assembly 8 in the described MBR filter tank 3, and be added with difficult for biological degradation particle 9, plate film assembly also is provided with aeration tube, and the aeration tube of this aeration tube and Aerobic Pond 2 bottoms is all by gas blower 11 aerations.And Aerobic Pond 2 and MBR filter tank 3 communicate, and the place of communicating is provided with the screen cloth 7 that can tackle difficult for biological degradation particle 9.
Flow into successively in anoxic pond 1 and the Aerobic Pond 2 through water inlet pipe 4 through pretreated sanitary sewage, after removing most pollution substance by the oxygenolysis of microorganism, in MBR filter tank 3, hold back large particulate matter to make and meet the reuse water standard by flat sheet membrane, reuse water is sucked pump 10 sucking-offs again, is made miscellaneous water through rising pipe 12 by reuse.Wherein rising pipe 12 also is provided with a branch road, and this branch road is provided with backwash water tank 13, and the part reuse water can flow in the backwash water tank 13, as backwash water.
The sludge reflux pump 5 that is arranged in Aerobic Pond 2 is back to anoxic pond 1 and carries out denitrification after can making the sewage of Aerobic Pond through nitrification ammonia nitrogen is converted into nitrate nitrogen, nitrate nitrogen is converted into nitrogen removes.Can also make the screen cloth of sewage by the bottom in the MBR filter tank 3 be back to Aerobic Pond 2, screen cloth 7 can be held back the difficult for biological degradation particle 9 in the sewage that refluxes, high-solubility oxygen sewage backflow to Aerobic Pond 2 can improve Aerobic Pond 2 dissolution of contaminated water oxygen in the MBR filter tank 3, thereby can suitably reduce the Aerobic Pond aeration rate, energy efficient reduces running cost.Excess sludge in the MBR filter tank 3 is by excess sludge discharge pipe 17 dischargings of being located at the bottom.
Referring to Fig. 2, the difficult for biological degradation particle 9 that adds in the MBR filter tank 3 washes away the film surface with the cross-flow aeration in the plate film assembly 8, simultaneously the backwash water in the backwash water tank 13 make the pollution of washing away by the backwash water band from the flat sheet membrane surface, film is polluted is effectively controlled.Be positioned at the outer housing 14 of membrane bioreactor and can regulate motor speed control pump and gas blower flow, can also control the intermittent operation of suction pump 10.
Rising pipe 12, aeration tube 18, flat sheet membrane 19 are positioned at plate film assembly 8, a large amount of air comes out and floats from aeration tube 18, particle 9 also floats with air simultaneously, particle 9 meeting collision flat sheet membrane 19 make attached to the pollution layer on the film and split away off in the process of come-up, entering into backwash water by rising pipe 12 washes out the part pollutent in the flat sheet membrane 19 and the pollutent on film surface, rising to air-flow can also can wash away the pollutent on flat sheet membrane 19 surfaces walk, and this process has reached and reduced the purpose that film pollutes.
Above-mentioned only is specific embodiment of the utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (9)
1. the water treatment device of water reuse in a kind, comprise an anoxic pond, an Aerobic Pond and a MBR filter tank of arranging in turn, described anoxic pond is established sewage water inlet pipe, described Aerobic Pond bottom is provided with aeration tube, it is characterized in that: described Aerobic Pond also is provided with reflux pump, and the return line of reflux pump leads to anoxic pond and MBR filter tank respectively; Described MBR is provided with plate film assembly in the filter tank, and is added with the difficult for biological degradation particle, and Aerobic Pond and MBR filter tank communicate, and the place of communicating is provided with can tackle difficult for biological degradation particulate screen cloth.
2. as claimed in claim 1 a kind of in the water treatment device of water reuse, it is characterized in that: described plate film assembly is plate film assembly that can backwash, and a branch road of the rising pipe of described plate film assembly connects a backwash water tank.
3. the water treatment device of a kind of middle water reuse as claimed in claim 1, it is characterized in that: described difficult for biological degradation particulate diameter is 3-7mm.
4. the water treatment device of a kind of middle water reuse as claimed in claim 1, it is characterized in that: described difficult for biological degradation particulate diameter is 3-5mm.
5. the water treatment device of a kind of middle water reuse according to claim 1, it is characterized in that: the aperture of described screen cloth is less than 3mm.
6. the water treatment device of a kind of middle water reuse according to claim 5, it is characterized in that: the aperture of described screen cloth is at 0.5-2.5mm.
7. the water treatment device of a kind of middle water reuse according to claim 5, it is characterized in that: the aperture of described screen cloth is 1.5-2.5mm.
8. the water treatment device of a kind of middle water reuse as claimed in claim 1 is characterized in that: the flat sheet membrane bottom is provided with aeration tube.
9. the water treatment device of a kind of middle water reuse as claimed in claim 1 is characterized in that: bottom, described MBR filter tank also is provided with the excess sludge discharge pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320109342 CN203079806U (en) | 2013-03-11 | 2013-03-11 | Water treatment device for reusing reclaimed water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320109342 CN203079806U (en) | 2013-03-11 | 2013-03-11 | Water treatment device for reusing reclaimed water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203079806U true CN203079806U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320109342 Expired - Lifetime CN203079806U (en) | 2013-03-11 | 2013-03-11 | Water treatment device for reusing reclaimed water |
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| Country | Link |
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| CN (1) | CN203079806U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609646A (en) * | 2014-12-24 | 2015-05-13 | 三达膜环境技术股份有限公司 | Treatment method of Chinese caterpillar fungus powder wastewater |
| CN104761103A (en) * | 2015-04-10 | 2015-07-08 | 北京万邦达环保技术股份有限公司 | Sewage treatment device and method |
-
2013
- 2013-03-11 CN CN 201320109342 patent/CN203079806U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609646A (en) * | 2014-12-24 | 2015-05-13 | 三达膜环境技术股份有限公司 | Treatment method of Chinese caterpillar fungus powder wastewater |
| CN104761103A (en) * | 2015-04-10 | 2015-07-08 | 北京万邦达环保技术股份有限公司 | Sewage treatment device and method |
| CN104761103B (en) * | 2015-04-10 | 2017-05-24 | 北京万邦达环保技术股份有限公司 | Sewage treatment device and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |