CN205803118U - A kind of modularity nitration denitrification membrane bioreactor - Google Patents
A kind of modularity nitration denitrification membrane bioreactor Download PDFInfo
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- CN205803118U CN205803118U CN201620627969.6U CN201620627969U CN205803118U CN 205803118 U CN205803118 U CN 205803118U CN 201620627969 U CN201620627969 U CN 201620627969U CN 205803118 U CN205803118 U CN 205803118U
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- nitration denitrification
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Abstract
The utility model discloses a kind of modularity nitration denitrification membrane bioreactor, including module, in module, left side is nitration denitrification reaction zone, the biologic packing material that density is successively decreased it is provided with on vertical direction in nitration denitrification reaction zone, in module, right side is membrane biological reaction district, film case it is provided with in membrane biological reaction district, it is provided with membrane component in film case, it is provided with aeration case below membrane biological reaction district inner membrance case, the sewage flow direction in nitration denitrification reaction zone is from top to bottom, and the water after process is discharged by self priming pump.Nitration denitrification reaction zone is assembled a module with membrane biological reaction district by the present invention, can adapt to various forms of places by the combination of intermodule, meet the requirement of various sewage disposal scale；And each module is independent processing unit, being independent of each other during maintenance, can be completely achieved annual uninterrupted water outlet, reliability of water supply is greatly promoted, and the system stable operation cycle is long, has expanded the range of application of MBR engineering.
Description
Technical field
The invention belongs to sewage treatment area, relate to a kind of modularity nitration denitrification film bioreactor device.
Background technology
Membrane bioreactor, as the sewage-treatment plant of a kind of highly effective, is widely used to municipal wastewater and multiple
Organic industrial sewage processes.It combines the advantage of traditional biological treatment technology and membrane separation technique, makes full use of ultrafilter membrane pair
The effectively catching of microorganism, is effective against organic loading, impact that difference variation causes, it is ensured that system reliably and with long-term, stable
Operation.
Traditional biological denitrification process generally uses Prepositive denitrification or rear-mounted denitrification, makes sewage pass through in the horizontal direction
Anaerobic/anoxic aerobic zone realizes the removal of nitrogen, for reaching more preferable denitrification effect, generally requires and arranges reflux and incite somebody to action
Oxygen district mixed-liquor return is to front end, and this traditional handicraft on the one hand floor space is big, and civil engineering costs is high, on the other hand needs to arrange
Special lifting device, not only energy consumption is high, and later maintenance expense is the highest, and meanwhile, traditional handicraft once breaks down, and generally requires
Maintenance down, it is impossible to ensure effluent quality, these shortcomings limit Flat Membrane and enter one in water processes especially mega project
Step application.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of modularity nitration denitrification film bioreactor device.
For reaching above-mentioned purpose, the present invention provides following technical scheme:
A kind of modularity nitration denitrification membrane bioreactor, reacts for nitration denitrification including left side in module, module
District, is provided with the biologic packing material that density is successively decreased on vertical direction in nitration denitrification reaction zone, in module, right side is membrane bioreaction
Answer district, in membrane biological reaction district, be provided with film case, be provided with membrane component in film case, below membrane biological reaction district inner membrance case, be provided with exposure
Gas tank, the sewage flow direction in nitration denitrification reaction zone is from top to bottom, the sewage flow direction in membrane biological reaction district be from
Under to upper, the sewage after strengthened denitrification flows to membrane biological reaction district from nitration denitrification reaction zone below inside modules and efficiently drops
Solve Organic substance.
Further, described aeration bottom portion is provided with aeration tube, and aeration tube is connected with aerator, from exposure by discharge pipe
Trachea gas out and sewage generation mixing wastewater with air, mixed dirty oxygen in water raises, and in film case, activated sludge has
High bio-diversity, the sewage containing dissolved oxygen contacts with aerobic microbiological further at this, under biotransformation,
Remove the Organic substance in sewage further, convert ammonia nitrogen etc..
Further, described film upper box part is provided with suction tube, and membrane component is connected with one end of suction tube respectively, suction tube
Other end is connected with water outlet self priming pump, water after treatment, under the effect of self priming pump, by the suction tube of film box top
Separate the mixed liquor in membrane biological reaction district, process clean water is flowed out membrane biological reaction district by suction tube and is purified water.
Further, described film case is connected by pipeline with chemicals dosing plant, and chemicals dosing plant includes dosing pump and cleans medicine-chest,
Cleaning medicine-chest and be internally provided with cleanout fluid, clean medicine-chest and be connected with dosing pump pipeline, dosing pump is connected by pipeline with film case, adds
The cleanout fluid cleaned in medicine-chest is poured inside film case by Teat pipette, and cleanout fluid is for removing the pollutant of membrane surface, and membrane component exists
Cleanout fluid soaks a period of time and can recover the transparency of diaphragm.
The beneficial effects of the present invention is:
(1) nitration denitrification reaction zone is assembled a module with membrane biological reaction district by the present invention, can pass through intermodule
Combination adapt to various forms of places, meet the requirement of various sewage disposal scale；And each module is independent process
Unit, is independent of each other during maintenance, can be completely achieved annual uninterrupted water outlet, and reliability of water supply is greatly promoted, system stable operation
Cycle is long, has expanded the range of application of MBR engineering；
(2) biologic packing material successively decreased by density of setting on the vertical direction of nitration denitrification reaction zone, along water (flow) direction
Form vertical aerobic-anoxic district, instead of traditional handicraft horizontal direction and pass sequentially through each structures, at least saved 60%
Occupation of land space；
(3) successively decreasing along with the density of nitration denitrification reaction zone biologic packing material, dissolved oxygen content successively decreases at vertical direction, sewage
Nitration denitrification reaction the most thoroughly can be carried out in this region, it is achieved strengthened denitrification, subsequently enter membrane biological reaction district efficient
Degradation of organic substances, effluent quality is protected；
(4) backflow of membrane biological reaction district mixed liquor is without using sludge lifting pump, and utilization is the wind more than needed of aerator
Amount forms draught head, promotes air water to be back to nitration denitrification reaction zone, had both saved equipment cost, takes full advantage of again film raw
High-concentration activated sludge and dissolved oxygen in thing reaction zone, energy-conservation while greatly reduce later maintenance, administration fee use.
Accompanying drawing explanation
In order to make the purpose of the present invention, technical scheme and beneficial effect clearer, the present invention provides drawings described below to carry out
Illustrate:
Fig. 1 is the structural representation described in the embodiment of the present invention；
Fig. 2 is the arrangement figure of the bioreactor one reaction pool described in the embodiment of the present invention；
Fig. 3 is the arrangement figure in the bioreactor independent reaction pond described in the embodiment of the present invention.
Description of reference numerals:
1-module；2-aerator；3-self priming pump；4-nitration denitrification reaction zone；5-membrane biological reaction district；6-biology is filled out
Material；7-film case；8-membrane component；9-aeration case；10-suction tube；11-aeration tube；12-aerator discharge pipe；13 clean medicine-chest；
14-dosing pump；15-water inlet；16-discharge outlet.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the invention and the feature in embodiment can
To be mutually combined.
In the description of the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " on ", D score,
Orientation or the position relationship of the instruction such as "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description rather than instruction
Hint indication device or element must have specific orientation, with specific azimuth configuration and operation, be not understood that
For the restriction to the invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicate
Or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In the description of the invention, unless separately
Being described, " multiple " are meant that two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", should be interpreted broadly " being connected ", " connection ", for example, it may be fix connection, it is also possible to be to removably connect, or integratedly
Connect；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on can being understood by concrete condition
State term concrete meaning in the invention.
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As it is shown in figure 1, solid line is water pipe in Fig. 1, dotted line is airduct, and chain-dotted line is chemical feed pipe, and short arrow is the flow direction of wind,
Long arrow is the flow direction of water, a kind of modularity nitration denitrification membrane bioreactor, and including module 1, in module 1, left side is nitrification
Anti-nitration reaction district 4, is provided with the biologic packing material 6 that density is successively decreased on vertical direction in nitration denitrification reaction zone 4, sewage is from nitre
Changing the water inlet 15 above anti-nitration reaction district 4 to flow into, nitration denitrification reaction zone 4 forms the aerobic-anoxic along water (flow) direction
District, sewage realizes strengthened denitrification in this region, and in module 1, right side is membrane biological reaction district 5, is provided with in membrane biological reaction district 5
Film case 7, is provided with membrane component 8 in film case 7, sewage is at this area efficient degradation of organic substances.Below membrane biological reaction district 5 inner membrance case 7
Being provided with aeration case 9, be provided with " rich " type aeration tube 11 bottom aeration case 9, aeration tube 11 is by aerator discharge pipe 12 and drum
Blower fan 2 connects.The sewage flow direction in nitration denitrification reaction zone 4 is from top to bottom, sewage stream in membrane biological reaction district 5
To for from top to bottom, the sewage after strengthened denitrification flows to membrane biological reaction at module 1 lower inside from nitration denitrification reaction zone 4
District 5.
Film case 7 top is provided with suction tube 10, and suction tube 10 one end is connected respectively with membrane component 8, suction tube 10 other
End is connected with water outlet self priming pump 3, and the water after process, under the effect of self priming pump 3, is separated by the suction tube 10 at film case 7 top
The mixed liquor in membrane biological reaction district 5, flows out membrane biological reaction district 5, from self priming pump 3 by process clean water by suction tube 10
Discharge outlet 16 is purified water.
Film case 7 is connected by pipeline with chemicals dosing plant, and chemicals dosing plant includes dosing pump 14 and cleans medicine-chest 13, cleans medicine-chest
13 are internally provided with cleanout fluid, clean medicine-chest 13 and are connected with dosing pump 14 pipeline, and dosing pump 14 is connected by pipeline with film case 7,
It is internal that the cleanout fluid cleaned in medicine-chest 13 is poured film case 7 by dosing pump 14, and cleanout fluid is for removing the pollutant of membrane surface, film
Element 8 soaks a period of time in cleanout fluid can recover the transparency of diaphragm, it is ensured that the water outlet water yield.
As in figure 2 it is shown, in parallel being arranged in one reaction pool of modularity nitration denitrification membrane bioreactor, sewage from
Water inlet 15 flows into, and the water after purification is discharged from discharge outlet 16.
As it is shown on figure 3, modularity nitration denitrification membrane bioreactor is separately positioned in independent reaction tank, sewage from
Water inlet 15 flows into, and discharges from discharge outlet 16.
The operation principle of the present invention:
During use, sewage uses multipoint water feeding, is respectively connected to the nitrification of each modularity nitration denitrification membrane bioreactor
Behind anti-nitration reaction district 4, sewage is spread in uniform on biologic packing material 6, and biologic packing material 6 is along water (flow) direction loading density from top to bottom
Successively decrease.Water inlet mixes with the air water reflux medium from membrane biological reaction district 5, with the absorption micro-life on upper strata biologic packing material 6
Thing generation aerobic reaction, it is many that this stage takes full advantage of the high-solubility oxygen in membrane biological reaction district 5, high-concentration activated sludge and biology
Sample, consumes a large amount of dissolved oxygen while degraded partial organic substances；Continue descending under gravity along with sewage, dissolved oxygen
Constantly being consumed, gradually form favourable anaerobic environment, nitrate and nitrite in sewage are being adsorbed on biologic packing material 6
Denitrifying bacterium effect under, carry out denitrification fully the most thoroughly, make the NO in mixed liquor3 -It is rapidly converted into N2；Subsequently, as expose
Trachea 11 constantly upwards sends huge air-flow, causes powerful in the bottom of nitration denitrification reaction zone 4 with membrane biological reaction district 5
Draught head, the sewage after promoting strengthened denitrification to process is drawn in membrane biological reaction district 5, meanwhile, sewage and aeration tube 11
Gas mix, mixed dirty oxygen in water raises, and air-water mixture enters film case 7 from bottom to top, lives in film case 7
Property sludge concentration can reach 8000～20000mg/L, has high bio-diversity, the sewage containing dissolved oxygen at this with good
Oxygen animalcule contacts further, under film biotransformation, removes the Organic substance in sewage further, converts ammonia nitrogen etc.；Place
Water after reason, under the effect of self priming pump 3, separates the mixing in membrane biological reaction district 5 by the suction tube 10 at membrane component 8 top
Liquid, flows out the water after membrane biological reaction district 5 is purified by processing clean water by suction tube 10.
The electromechanical equipment of the invention modularity nitration denitrification film bioreactor device (English abbreviation DN--MBR)
Operation by PLC control cabinet control, by PLC control cabinet, self priming pump 3 is carried out time control, self priming pump 3 is according to certain rule
Intermittent duty, PLC control cabinet can set the start-stop time of self priming pump 3 as required, primarily to realize the guarantor to membrane component 8
Protect, slow down membrane component 8 in actual use by fouling membrane, affect its water outlet water yield；PLC control cabinet is also to aerator 2 with add
Teat pipette 14 is carried out and is controlled, it is ensured that its safe and efficient operation.
Finally illustrate, preferred embodiment above only in order to technical scheme to be described and unrestricted, although logical
Cross above preferred embodiment the present invention to be described in detail, it is to be understood by those skilled in the art that can be
In form and it is made various change, without departing from claims of the present invention limited range in details.
Claims (4)
1. a modularity nitration denitrification membrane bioreactor, it is characterised in that: including module (1), in module (1), left side is
Nitration denitrification reaction zone (4), nitration denitrification reaction zone (4) interior vertical direction is provided with the biologic packing material that density is successively decreased
(6), in module (1), right side is membrane biological reaction district (5), is provided with film case (7) in membrane biological reaction district (5), and film case sets in (7)
Having membrane component (8), membrane biological reaction district (5) inner membrance case (7) lower section to be provided with aeration case (9), sewage reacts at nitration denitrification
The flow direction in district (4) is from top to bottom, and the sewage flow direction in membrane biological reaction district (5) is from top to bottom, and sewage is in module (1)
Lower inside flows to membrane biological reaction district (5) from nitration denitrification reaction zone (4).
Modularity nitration denitrification membrane bioreactor the most according to claim 1, it is characterised in that: described aeration case
(9) bottom is provided with aeration tube (11), and aeration tube (11) is connected with aerator (2) by aerator discharge pipe (12).
Modularity nitration denitrification membrane bioreactor the most according to claim 1, it is characterised in that: described film case (7)
Top is provided with suction tube (10), and membrane component (8) one end with suction tube (10) respectively is connected, suction tube (10) other end with
Water outlet self priming pump (3) connects.
Modularity nitration denitrification membrane bioreactor the most according to claim 1, it is characterised in that: described film case (7)
Being connected by pipeline with chemicals dosing plant, chemicals dosing plant includes dosing pump (14) and cleans medicine-chest (13), cleans medicine-chest (13) internal
Being provided with cleanout fluid, clean medicine-chest (13) and be connected with dosing pump (14) pipeline, dosing pump (14) is with film case (7) by pipeline even
Connect.
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| CN201620627969.6U CN205803118U (en) | 2016-06-22 | 2016-06-22 | A kind of modularity nitration denitrification membrane bioreactor |
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| CN201620627969.6U CN205803118U (en) | 2016-06-22 | 2016-06-22 | A kind of modularity nitration denitrification membrane bioreactor |
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| CN205803118U true CN205803118U (en) | 2016-12-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115896A (en) * | 2016-06-22 | 2016-11-16 | 南京瑞洁特膜分离科技有限公司 | A kind of modularity nitration denitrification membrane bioreactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115896A (en) * | 2016-06-22 | 2016-11-16 | 南京瑞洁特膜分离科技有限公司 | A kind of modularity nitration denitrification membrane bioreactor |
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