CN203360118U - Improved bio-augmentation membrane bioreactor - Google Patents
Improved bio-augmentation membrane bioreactor Download PDFInfo
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- CN203360118U CN203360118U CN 201320439024 CN201320439024U CN203360118U CN 203360118 U CN203360118 U CN 203360118U CN 201320439024 CN201320439024 CN 201320439024 CN 201320439024 U CN201320439024 U CN 201320439024U CN 203360118 U CN203360118 U CN 203360118U
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- augmenting nozzle
- membrane bioreactor
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- aeration tube
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to the technical field of water treatment, in particular to an improved bio-augmentation membrane bioreactor. The bio-augmentation membrane bioreactor is characterized in that a membrane component is arranged in the middle of the interior of the housing; the periphery of the membrane component are filled with a plurality of fluidized light-weight filler particles; an aerobic bacteria layer is formed outside the fluidized light-weight filler particles; an anaerobic bacteria layer or a facultative aerobic bacteria layer is formed inside the fluidized light-weight filler particles; one side of the top of the housing is connected to the outlet of a raw water pump outside the housing through a first flow guide tube; the top of the membrane component is connected to the inlet of a water production pump through a second flow guide tube; a level aeration tube is arranged below the fluidized light-weight filler particles; an inlet end on one side of the aeration tube is connected to a blower outside the housing of the bioreactor through a third flow guide tube; a mud discharge hole is formed in the other side, corresponding to the side wall of the housing, of the aeration tube. The improved bio-augmentation membrane bioreactor is high in volumetric loading, small in occupied area, high in transfer efficiency of oxygen, low in energy consumption, low in membrane fouling rate, good in denitrogenation effect and high in degree of automation and can realize on-line cleaning and maintenance.
Description
[technical field]
The utility model relates to water-treatment technology field, relates in particular to a kind of biological reaction apparatus that utilizes improved biological reinforced membrane bioreactor to be processed and recycle sewage.
[background technology]
Membrane bioreactor (MBR) technological incorporation the biological degradation function of traditional activated sludge process and the high efficiency separation function of film, there is the plurality of advantages such as effluent quality is good, process operation stable, volumetric loading is high, floor space is few, be widely used in sewage disposal and reuse field.But, in long-term practice, film pollutes the biggest obstacle become in the MBR application:
1. increase initial cost.Film pollutes and causes flux decline serious, needs larger membrane area, causes initial cost to increase.
2. energy consumption is high.Film is held back and is made in reactor the sludge concentration that remains very high, and volumetric loading can be provided, but also causes mass-transfer efficiency reduction, film to pollute aggravation, in order to meet microorganism growth and decelerating membrane pollution, needs higher aeration intensity, and energy consumption increases.
3. trouble is safeguarded and cleaned to membrane module.Film pollutes and causes the decline of membrane flux fast, and need to clean frequently and safeguard, complex operation, the system shutdown time is long, affects the normal production of enterprise, increases running cost simultaneously.
And traditional membrane bioreactor advanced nitrogen effect is not ideal enough, after being discharged into environment water, easily causes body eutrophication.
[summary of the invention]
The utility model is just in order to overcome shortcomings and deficiencies of the prior art, in conjunction with fluidization, immobilized microorganism technique, film is held back technology, the on-line cleaning technology, improve the fluidised form in reactor, improve the concentration of effective microbe in reactor, the quantity of the nitrifier that the enrichment generation cycle is longer etc., enrich the microbial of system, membrane contaminant matter concentration in the reduction system, delay film and pollute process, the floating stuffing of fluidisation repeatedly collides with contacting and is conducive to reduce the film surface pollution degree with face simultaneously, provide a kind of pollutant removal good, energy consumption is low, film pollutes light biological reinforced membrane-way water treating device.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions:
Design a kind of improved biological reinforced membrane bioreactor, comprise housing, water pump, blower fan and thrust-augmenting nozzle, it is characterized in that described enclosure interior central authorities are provided with membrane module, fill some fluidisation light filler particles around described membrane module, make the microorganism in system be attached to as much as possible on fluidized packing material, the concentration of suspended sludge in the reduction system, the contact probability on reduce mud particle and film surface, the light filler of fluidisation is simultaneously repeatedly collided with contacting and is conducive to reduce the film surface pollution degree with face, significantly reduces membrane fouling rate; The outside aerobic bacteria layer that forms of described fluidisation light filler particle, described fluidisation light filler granule interior forms anerobe or double oxygen bacterium layer, inside and outside all there is different biological species, each carrier is a microreactor like this, nitration reaction and anti-nitration reaction are existed simultaneously, thereby realize synchronous nitration and denitrification at aerobic zone; Described case top one side connects the raw water pump outlet of hull outside by the first thrust-augmenting nozzle, the top of described membrane module is connected with the product unit fixed on water pump suction by the second thrust-augmenting nozzle, the below of described some fluidisation light filler particles also is provided with the aeration tube of level, one side-entrance end of described aeration tube is by the blower fan of the 3rd thrust-augmenting nozzle ligation device hull outside, can improve the fluidised form in reactor, collision by fluidized packing material in water and shearing action, make air bubble more tiny, increase the utilization ratio of oxygen, reduced energy consumption.Also be provided with mudhole on housing sidewall corresponding to the opposite side of described aeration tube.
Described the second thrust-augmenting nozzle tap one end connects backwashing pump by the 4th thrust-augmenting nozzle, forms membrane module inner counter cleaning device, can realize automatic on-line washing, the chemical cleaning online of membrane module, reduces system maintenance labour intensity, the cycle of operation of membrane component and prolong.
The outlet of described product water pump connects water reservoir or return line, described the first thrust-augmenting nozzle, the second thrust-augmenting nozzle and return line form the effluent recycling structure, when influent ammonia nitrogen is very high, by water outlet internal recycle dilution influent ammonium concentration, eliminate the inhibition of high ammonia nitrogen to microorganism in system, can process high ammonia-nitrogen wastewater not doing in pretreated situation.
Described aeration tube equidistantly is provided with some perforation vertically upward along horizontal direction, because aeration tube is horizontal positioned, bores a hole identical apart from the vertical range of membrane module, realizes uniform aeration.
For controlling vacuum tightness and the flow in the second thrust-augmenting nozzle and the 3rd thrust-augmenting nozzle, be provided with vacuum meter on described the second thrust-augmenting nozzle, described the 3rd thrust-augmenting nozzle is provided with air flowmeter.
The beneficial effects of the utility model are:
1. volumetric loading is high, and floor space is little.Described improved biological reinforced membrane bioreactor, having merged film holds back and the microbial film immobilization technology, in system, effective microbe quantity is significantly improved, volumetric loading is high, can significantly reduce floor space, only need existing utility is simply transformed not increasing land area, sewage treatment capacity can increase 2-3 doubly, and improves effluent quality.
2. the mass-transfer efficiency of oxygen is high, and energy consumption is low.Described improved biological reinforced membrane bioreactor, the collision by fluidized packing material in water and shearing action, make air bubble more tiny, increased the utilization ratio of oxygen, reduces energy consumption.
3. membrane fouling rate is low.Described improved biological reinforced membrane bioreactor, in conjunction with fluidization, immobilized microorganism technique, on-line cleaning technology, improve membrane contaminant matter concentration in fluidised form in reactor, reduction system, delay film and pollute process, the floating stuffing of fluidisation repeatedly collides with contacting and is conducive to reduce the film surface pollution degree with face simultaneously, significantly reduces membrane fouling rate.
4. denitrification effect is good.Described improved biological reinforced membrane bioreactor, all there is different biological species inside and outside each fluidized packing material, some anerobes of growth inside or double oxygen bacterium, outside has been bacteria, each carrier is a microreactor like this, nitration reaction and anti-nitration reaction are existed simultaneously, and film holds back with microbial film and make nitrobacteria obtain enrichment, the system denitrification effect is good.
5. level of automation is high.Described improved biological reinforced membrane bioreactor, have film silk fracture automatic detection alarm device, automatic sludge discharger, aerating system automatic-adjusting device, and level of automation is high, and running maintenance is simple, and working cost is low.
6. but on-line cleaning and maintenance.Described biological reinforced membrane bioreactor possesses function of on-line cleaning, can realize automatic on-line washing, chemical cleaning online and the online backwash of membrane module, significantly reduces membrane fouling rate, the cycle of operation of membrane component and prolong.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present utility model;
1. housings in figure; 2. membrane module; 3. fluidisation light filler particle; 4. the first thrust-augmenting nozzle; 5. raw water pump; 6. the second thrust-augmenting nozzle; 7. product water pump; 8. aeration tube; 9. the 3rd thrust-augmenting nozzle; 10. blower fan; 11. mudhole; 12. vacuum meter; 13. air flowmeter; 14. backwashing pump; 15. the 4th thrust-augmenting nozzle.
[embodiment]
Now, in conjunction with reference to drawings and Examples, the technical solution of the utility model is further elaborated, believes that this bio-reactor is clearly for a person skilled in the art.
Bio-reactor in the utility model is as shown in Figure 1:
At first, in housing 1 bottom, the aeration tube 8 of level is installed, the some perforation on aeration tube 8 are equidistantly set up vertically upward along horizontal direction;
Secondly, membrane module 2 is installed above aeration tube 8;
Then, fill some fluidisation light filler particles 3 around membrane module 2, at the outside aerobic bacteria layer that coats of fluidisation light filler particle 3, at the inner embedding anerobe of fluidisation light filler particle 3 or double oxygen bacterium layer;
Finally, take over operation.Housing 1 top one side is connected to raw water pump 5 outlets of hull outside by the first thrust-augmenting nozzle 4; The top of membrane module 2 is connected with 7 imports of product water pump by the second thrust-augmenting nozzle 6; One side-entrance end of aeration tube 8 by the blower fan 10 of the 3rd thrust-augmenting nozzle 9 ligation device hull outside, is also had to mudhole 11 at the aeration tube opposite side on corresponding housing sidewall.
When using above-mentioned bioreactor for treatment factory living quarters waste water, by in the MBR reactor, arrange can fluidisation the light biological film filler, make the microorganism in system be attached to as much as possible on fluidized packing material, the concentration of suspended sludge in the reduction system, the contact probability on reduce mud particle and film surface, the light filler of fluidisation is simultaneously repeatedly collided with contacting and is conducive to reduce the film surface pollution degree with face, reduces membrane fouling rate.
And the collision by fluidized packing material in water and shearing action, make air bubble more tiny, improved the utilization ratio of oxygen, is conducive to the carrying out of nitrifying process, at water inlet NH
3in-N concentration 10-50 mg/L situation, water outlet NH
3-N maintains below 1.0 mg/L.Simultaneously owing to all thering is different biological species inside and outside each fluidized packing material, some anerobes of growth inside or double oxygen bacterium, outside has been bacteria, each carrier is a microreactor like this, thereby realized synchronous nitration and denitrification at aerobic zone, in controlling reactor, between dissolved oxygen 1.0-1.5 mg/L the time, total nitrogen has been realized removing of 50%-80%.From top example, the utility model membrane fouling rate is low, energy consumption is low, denitrification effect is good.
As optimization, but also buildup film component internal back washing device, connect backwashing pump 14 at the second thrust-augmenting nozzle 6 tap one ends by the 4th thrust-augmenting nozzle 15, can realize automatic on-line washing, chemical cleaning online and the online backwash of membrane module, reduce membrane fouling rate, the cycle of operation of membrane component and prolong; Set up vacuum meter 12 on the second thrust-augmenting nozzle 6, air flowmeter 13 is installed on the 3rd thrust-augmenting nozzle 9, realize the automated operations such as automatic mud removing, the automatic adjusting of aerating system.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. an improved biological reinforced membrane bioreactor, comprise housing, water pump, blower fan and thrust-augmenting nozzle, it is characterized in that described enclosure interior central authorities are provided with membrane module, fill some fluidisation light filler particles around described membrane module, the outside aerobic bacteria layer that forms of described fluidisation light filler particle, described fluidisation light filler granule interior forms anerobe or double oxygen bacterium layer, described case top one side connects the raw water pump outlet of hull outside by the first thrust-augmenting nozzle, the top of described membrane module is connected with the product unit fixed on water pump suction by the second thrust-augmenting nozzle, the below of described some fluidisation light filler particles also is provided with the aeration tube of level, one side-entrance end of described aeration tube is by the blower fan of the 3rd thrust-augmenting nozzle ligation device hull outside, also be provided with mudhole on housing sidewall corresponding to the opposite side of described aeration tube.
2. a kind of improved biological reinforced membrane bioreactor as claimed in claim 1, is characterized in that described the second thrust-augmenting nozzle tap one end connects backwashing pump by the 4th thrust-augmenting nozzle, forms membrane module inner counter cleaning device.
3. a kind of improved biological reinforced membrane bioreactor as claimed in claim 1, is characterized in that the outlet of described product water pump connects water reservoir or return line, and described the first thrust-augmenting nozzle, the second thrust-augmenting nozzle and return line form the effluent recycling structure.
4. a kind of improved biological reinforced membrane bioreactor as claimed in claim 1, is characterized in that described aeration tube equidistantly is provided with some perforation vertically upward along horizontal direction.
5. a kind of improved biological reinforced membrane bioreactor as claimed in claim 1, is characterized in that described the second thrust-augmenting nozzle is provided with vacuum meter.
6. a kind of improved biological reinforced membrane bioreactor as claimed in claim 1, is characterized in that described the 3rd thrust-augmenting nozzle is provided with air flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320439024 CN203360118U (en) | 2013-07-22 | 2013-07-22 | Improved bio-augmentation membrane bioreactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320439024 CN203360118U (en) | 2013-07-22 | 2013-07-22 | Improved bio-augmentation membrane bioreactor |
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| CN203360118U true CN203360118U (en) | 2013-12-25 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858872A (en) * | 2016-03-28 | 2016-08-17 | 杭州师范大学 | Moving-bed biological membrane coupled osmosis membrane biological reactor |
| CN109384307A (en) * | 2018-11-21 | 2019-02-26 | 大连理工大学 | It is a kind of using electrochemically strengthening Carbon-nanotube hollow fiber membrane as the membrane bioreactor of separative unit |
| CN110550754A (en) * | 2019-09-24 | 2019-12-10 | 浙江联池水务设备股份有限公司 | Membrane method sewage treatment system |
| CN111704317A (en) * | 2020-06-28 | 2020-09-25 | 重庆工商大学 | Method for slowing down membrane pollution of aerobic granular sludge membrane bioreactor |
| CN112479367A (en) * | 2020-11-04 | 2021-03-12 | 河北工程大学 | Coupling membrane pollution control device and method for enhancing denitrification and denitrification effects of salt-containing wastewater |
-
2013
- 2013-07-22 CN CN 201320439024 patent/CN203360118U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858872A (en) * | 2016-03-28 | 2016-08-17 | 杭州师范大学 | Moving-bed biological membrane coupled osmosis membrane biological reactor |
| CN109384307A (en) * | 2018-11-21 | 2019-02-26 | 大连理工大学 | It is a kind of using electrochemically strengthening Carbon-nanotube hollow fiber membrane as the membrane bioreactor of separative unit |
| CN110550754A (en) * | 2019-09-24 | 2019-12-10 | 浙江联池水务设备股份有限公司 | Membrane method sewage treatment system |
| CN110550754B (en) * | 2019-09-24 | 2022-04-01 | 浙江联池水务设备股份有限公司 | Membrane method sewage treatment system |
| CN111704317A (en) * | 2020-06-28 | 2020-09-25 | 重庆工商大学 | Method for slowing down membrane pollution of aerobic granular sludge membrane bioreactor |
| CN111704317B (en) * | 2020-06-28 | 2022-07-08 | 重庆工商大学 | Method for slowing down membrane pollution of aerobic granular sludge membrane bioreactor |
| CN112479367A (en) * | 2020-11-04 | 2021-03-12 | 河北工程大学 | Coupling membrane pollution control device and method for enhancing denitrification and denitrification effects of salt-containing wastewater |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20190722 |
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| CF01 | Termination of patent right due to non-payment of annual fee |