CN106277327A - A kind of whole process autotrophic denitrification reactor and denitrification process - Google Patents
A kind of whole process autotrophic denitrification reactor and denitrification process Download PDFInfo
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- CN106277327A CN106277327A CN201610852237.1A CN201610852237A CN106277327A CN 106277327 A CN106277327 A CN 106277327A CN 201610852237 A CN201610852237 A CN 201610852237A CN 106277327 A CN106277327 A CN 106277327A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
Abstract
The invention provides a kind of whole process autotrophic denitrification reactor, nitrosation Anammox district it is provided with on the top of reactor shell, it is provided with the first filler assembly in nitrosation Anammox district, surface internal layer at the first filler assembly is attached with anaerobic ammonia oxidizing bacteria, and surface overcoats is attached with nitrococcus；The bottom of reactor shell is provided with denitrification zone；The second filler assembly being attached with denitrifying bacterium it is provided with in denitrification zone；The top in nitrosation Anammox district is provided with membrane module, is provided with and communicated with outlet with the water outlet side of described membrane module；In nitrosation Anammox district and be positioned at the lower section of described first filler assembly and be provided with aerator；The first three phase separator it is provided with between the first filler assembly and described membrane module.Reactor of the present invention effectively prevent pollution and the blocking of membrane module, enhances the treatment effect to waste water；Whole omnidistance denitrification reaction is made to be able to efficiently, stably carry out.
Description
Technical field
The invention belongs to field of waste water treatment, be specifically related to a kind of whole process autotrophic denitrification reactor and denitrification process.
Background technology
Whole process autotrophic denitrification is a kind of novel denitrification process of rising in recent years.Its principle is: first at aerobic condition
Under, the ammonia nitrogen in waste water is partially converted into nitrite nitrogen by nitrococcus；The most under anaerobic, Anammox is utilized
Nitrite nitrogen is become nitrogen with remaining mineralized nitrogen by bacterium.Compared with traditional denitrification process, whole process autotrophic denitrification has work
The advantage that process flow is short, floor space is little.
In prior art, Chinese patent literature CN103979683B discloses a kind of based on integral type bulking sludge bed-film
The technique of bioreactor, this device is divided into upper membrane filtering function district and whole process autotrophic denitrification functional areas, bottom, in upper membrane
It is provided with three phase separator between filtering function district and autotrophic denitrification functional areas, bottom.It is provided with in described membrane filtration functional areas
Membrane module, the outlet of membrane module connects water pump.It is provided with perforation to expose at the position of the lower section adjacent membrane assembly of membrane module
Trachea.Reactor lower floor is set to bulking sludge bed, and the top layer of the mud granule in bulking sludge bed is attached with aerobic ammonia oxidation
Bacterium, for being nitrite nitrogen by part mineralized nitrogen, internal layer is anaerobic ammonia oxidizing bacteria, for by nitrite nitrogen and residue ammonia
Nitrogen transformation is nitrogen.Operationally, air carries out aeration by described boring aeration pipe to this device, and its effect one is to wash away film table
Fouling membrane is alleviated in face, and two is to rush oxygen for the water body on reactor top, and the part rushing the reactor water outlet after oxygen is introduced into separation
Groove, is entered cylinder by reactor bottom again after isolating bubble, thus the autotrophic denitrification for reactor lower part provides dissolved oxygen.
Above-mentioned reactor utilizes bulking sludge bed to achieve nitrosation-anaerobic ammoxidation reaction, enters by arranging membrane module
Row retains, and also effectively prevent the loss of microorganism in reactor.Upper by nitrosation-anaerobic ammoxidation reaction zone simultaneously
Side arranges aeration zone and washes away membrane module, also effectively prevent fouling membrane.But for this device, on the one hand its aeration zone
Being the top being independently disposed to nitrosation-anaerobic ammoxidation reaction zone, this adds the height of reactor shell undoubtedly, is unfavorable for
Save the volume of reactor shell；On the other hand this reactor can not realize denitrification process, it is impossible to synchronizes to remove in water body
Nitrate nitrogen.
Summary of the invention
What the present invention solved is that the reactor being provided with membrane module in prior art cannot synchronize to realize denitrification and needs
It is independently arranged aeration zone, thus the problem increasing height for reactor.Thus provide one can effectively prevent microorganism to run off,
Can synchronize to realize the reactor of denitrification, nitrosation-anaerobic ammoxidation.
The technical scheme that the present invention solves the employing of above-mentioned technical problem is as follows:
A kind of whole process autotrophic denitrification reactor, including reactor shell, be provided with in the bottom of described reactor shell into
The mouth of a river, top is provided with air vent；Nitrosation-anaerobic ammoxidation district, is arranged on the top of described reactor shell, in described Asia
The first filler assembly it is provided with in nitration-anaerobic ammoxidation district；Denitrification zone, is arranged on the bottom of described reactor shell,
Described denitrification zone is provided with the second filler assembly；Membrane module, is positioned at the top in described nitrosation-anaerobic ammoxidation district, with institute
The water outlet side stating membrane module is provided with and communicated with outlet；Aerator, in being arranged on described nitrosation-anaerobic ammoxidation district and position
Lower section in described first filler assembly；Being provided with aeration passage on described first filler assembly, described aeration passage is along perpendicular
Nogata is to setting；It is additionally provided with the first three phase separator between described first filler assembly and described membrane module.
Described first three phase separator includes separating plate, and often group separating plate is provided with guide plate and flow-stopping plate；Wherein, described
Guide plate and flow-stopping plate are all obliquely installed, and form fluid passage, edge, described fluid passage before described guide plate and flow-stopping plate
Vertical direction gradually tapers up from bottom to top, and the reactor shell cross section at the place, upper end of described flow-stopping plate is positioned at described guiding
The top of the reactor shell cross section at the place, upper end of plate；Described separating plate is correspondingly arranged with described aeration passage, described point
Guide plate from plate is arranged on the surface of described aeration passage.
Described aeration passage is provided with multiple, and the venthole of described aerator is also equipped with multiple, the plurality of gives vent to anger
Hole lays respectively at the lower section of the plurality of aeration passage；Described first three phase separator include multicomponent from plate, described multicomponent
Arranging with the plurality of aeration passage one_to_one corresponding from plate, the guide plate often organizing described separating plate is arranged at the described exposure of correspondence
The surface of gas passage.
Described aeration passage is arranged near the internal face of described reactor shell, is provided with in the inner side of described aeration passage
Return flow line, the flow-stopping plate of described separating plate is arranged on the surface of described return flow line.
Described guide plate is 30-40 degree with the angle of horizontal direction；Described flow-stopping plate is 40-50 with the angle of horizontal direction
Degree.
It is provided with the second three phase separator between described denitrification zone and described nitrosation-anaerobic ammoxidation district；Described
Second three phase separator includes: the first baffle plate, in truncated cone-shaped and along described reactor shell circumferencial direction arrange, described first
Baffle plate gradually tapers up the most from top to bottom, and the center of described first baffle plate is provided with throughbore；Second gear
Plate, is positioned at above described first baffle plate；Described second baffle is tip towards the cone arranged below described reactor shell,
It is provided with current gap between upper end and the internal face of described reactor shell of described second baffle；Described first baffle plate and
Formed between two baffle plates and connect described throughbore and the passage in described current gap；The venthole of described aerator is arranged on
On the upper end-face edge of described second baffle.
The reactor shell of the top in described nitrosation-anaerobic ammoxidation district and the lower section that is positioned at described membrane module sets
It is equipped with refluxing opening.
Use described whole process autotrophic denitrification reactor to carry out the technique of denitrogenation processing, comprise the steps:
(1) after described whole process autotrophic denitrification reactor successfully starts up, by waste water by described whole process autotrophic denitrification reactor
The water inlet of bottom is sent into, and waste water carries out denitrification process in described denitrification zone；
Complete the waste water after denitrification processes to rise to described nitrosation-anaerobic ammoxidation district again and carry out nitrosation-anaerobic ammonia
Oxidation processes；Use described aerator to carry out oxygen-containing gas aeration, control waste water in described nitrosation-anaerobic ammoxidation district
PH value is 7.5-8.0, and dissolved oxygen concentration is less than or equal to 1mg/L；
(2) the waste water warp after described membrane module filters completing nitrosation-anaerobic ammoxidation process is arranged by described outlet
Go out.
The reactor shell of the top in described nitrosation-anaerobic ammoxidation district and the lower section that is positioned at described membrane module sets
Being equipped with refluxing opening, the part completed in the waste water that nitrosation-anaerobic ammoxidation processes is back to described by described refluxing opening
Water inlet, reflux ratio is 1:4-2:5.
Whole process autotrophic denitrification reactor of the present invention, advantage is:
(1) whole process autotrophic denitrification reactor of the present invention, be provided with on the top of described reactor shell nitrosation-
Anammox district, is provided with the first filler assembly in described nitrosation-anaerobic ammoxidation district, at described first filler assembly
Surface internal layer be attached with anaerobic ammonia oxidizing bacteria, the surface overcoats at described first filler assembly is attached with nitrococcus；Institute
The bottom stating reactor shell is provided with denitrification zone；The second filler being attached with denitrifying bacterium it is provided with in described denitrification zone
Assembly；The top in described nitrosation-anaerobic ammoxidation district is provided with membrane module, connects setting with the water outlet side of described membrane module
There is outlet；In described nitrosation-anaerobic ammoxidation district and be positioned at the lower section of described first filler assembly and be provided with aeration dress
Put.When using heretofore described reactor to carry out denitrification reaction, the waste water entering described reactor first carries out anti-in bottom
Nitration treatment, complete denitrification process after waste water via after aerator aeration aerating enter nitrosation-anaerobic ammoxidation district,
Described nitrococcus and anaerobic ammonia oxidizing bacteria on first and described first filler assembly contact, and partial nitrification and anaerobism occur
Ammoxidation reaction.Complete the reacted waste water of Anammox to be discharged by described outlet after membrane module filters.In the present invention
Reactor, aerator is arranged on the bottom in nitrosation-anaerobic ammoxidation district, the bubble that aeration produces, and reactor
The nitrogen that upper strata reative cell and lower floor's reative cell produce can rise to described membrane module, thus washes away membrane module, the most anti-
Pollution and the blocking of membrane module are stopped.When utilizing aeration that membrane module is washed away, the water body in reactor cylinder body can be produced
Disturbance so that the microorganism sludge under being washed without the waste water processed completely and part arrives membrane module, thus blocks film
Assembly, affects the effect that waste water processes, to this end, the present invention is provided with the between described first filler assembly and described membrane module
One three phase separator, the waste water flowing to membrane module adnexa with gas is separated so that gas continues to rise and carries out membrane module
Washing away, microorganism sludge and waste water are then back to reaction zone, on the one hand decrease the sludge quantity arriving membrane module, on the other hand
Also improve the time of staying of mud and waste water, thus enhance the treatment effect to waste water；Make whole omnidistance denitrification reaction
It is able to efficiently, stably carry out.
(2) whole process autotrophic denitrification reactor of the present invention, arranges the first three phase separator and includes many groups along level side
To the separating plate being arranged in order, often group separating plate includes guide plate and flow-stopping plate；Wherein, described guide plate and flow-stopping plate all tilt
Arranging, form fluid passage before described guide plate and flow-stopping plate, described fluid passage is the most gradually
Shrink, and the reactor shell cross section at the place, upper end of described flow-stopping plate is positioned at the reactor shell horizontal stroke at described guide plate place
The top in cross section；It is provided with gap between separating plate described in every two adjacent groups.The present invention is by entering the first three phase separator
During the optimization of one step, the bubbles entrain microorganism sludge of aerator and waste water rise, first arrive guide plate, along described
Guide plate ramps up, then arrives flow-stopping plate, and after impact deflector, gas can continue along fluid passage to rise, and then arrives film
Assembly, liquid and microorganism sludge then reflux downwards under the barrier effect of flow-stopping plate, proceed nitrosation-anaerobic ammonia oxygen
Change reaction, thus improve the time of staying of waste water and mud, be prevented effectively from membrane module blocking.As preferred embodiment,
The present invention limits described aeration passage and arranges near the internal face of described reactor shell, arranges in the inner side of described aeration passage
There are return flow line, the flow-stopping plate of described separating plate to be arranged on the surface of described return flow line, by this setup, kept off
Liquid and microorganism sludge that stream plate stops can be refluxed by return flow line, thus form a circulation in reactor cylinder body,
Further increase the time of staying of waste water and mud.
Same as preferred embodiment, it is 30-40 degree that the present invention arranges the angle of described guide plate and horizontal direction
And the angle of described flow-stopping plate and horizontal direction is 40-50 degree；The angle of described guide plate as arrange excessive, then waste water and
Mud easily passes through between guide plate and flow-stopping plate, arrives the top of the first three phase separator, as too small, then to bubble in arrange
Guide effect inconspicuous, easily to bubble produce block, reduce its souring to membrane module.The present invention is by guiding
The angle of inclination of plate and flow-stopping plate carries out preferably, while ensureing souring to membrane module, it is ensured that flow-stopping plate pair
The baffle effect of waste water and mud so that waste water and mud can effectively be back to reaction zone after impacting described flow-stopping plate.
And another advantage of guide plate of the present invention and flow-stopping plate is, the guide plate upper end in the present invention and baffle
The upper surface that gap is gas passage, guide plate and flow-stopping plate formed between plate then forms depositional plane, air scour film group
The mud on membrane module can be washed out after part, after the mud dropped first arrives described depositional plane, under gravity can be through two groups
Gap between separating plate is fallen after rise to reaction zone.Between upper end and the described flow-stopping plate of the preferred described guide plate of the present invention vertical away from
From for 5-10cm；Gas can be passed through at this, and major part waste water and mud then can reflux after impacting flow-stopping plate；Make
Mud can be by this clearance backflow to reaction zone.
(3) whole process autotrophic denitrification reactor of the present invention, described second three phase separator includes be positioned at bottom
One baffle plate and be positioned at the second baffle above described first baffle plate；Wherein, described first baffle plate is truncated cone-shaped and along described reaction
The circumferencial direction of device cylinder is arranged, and described first baffle plate gradually tapers up the most from top to bottom, at described first baffle plate
Center is provided with throughbore；
The denitrification mud come off on second filler assembly can effectively be retained by the first baffle plate of this form, and
Waste water after the nitrogen of anti-nitration reaction generation and denitrification process then enters the nitrosation-anaerobic ammonia on top by water stream channel
Zoneofoxidation.The preferred described second baffle of the present invention is the cone that tip is arranged towards described reactor shell, and advantage is, removes
The nitrogen producing denitrification zone carries out water conservancy diversion, it is also possible to microorganism that above undertaking, nitrosation-anaerobic ammoxidation district drops
Mud, prevents the microorganism of reaction zone, top from the anti-nitration reaction of bottom is produced impact.
As preferred embodiment, the present invention is on described first baffle plate and near the punishment of the upper end of described first baffle plate
Being furnished with filter opening, the aperture of described filter opening is 2-3mm.By arranging described filter opening so that the nitrogen that denitrification zone produces can pass through
Filter screen arrives top.Will not be at the generation dead angle, lower section of the first baffle plate.
In order to the technical scheme making whole process autotrophic denitrification reactor of the present invention and denitrification process is clearer,
Below in conjunction with concrete drawings and the specific embodiments, the present invention is further elaborated.
Accompanying drawing explanation
It is the structural representation of whole process autotrophic denitrification reactor of the present invention as shown in Figure 1；
It is the first filler assembly being provided with gas passage of the present invention as shown in Figure 2 and is positioned at above gas passage
The structural representation of separating plate；
It is the whole process autotrophic denitrification reaction being provided with return flow line on the first filler assembly of the present invention as shown in Figure 3
The structural representation of device；
It is the top view of the first filler assembly being provided with three gas passages of the present invention as shown in Figure 4；
It is the first filler assembly shown in Fig. 4 and the side sectional view of separating plate as shown in Figure 5.
1-reactor shell；2-water inlet；3-air vent；4-nitrosation-anaerobic ammoxidation district；5-the first filler assembly；
6-denitrification zone；7-the second filler assembly；8-membrane module；The venthole of 9-aerator；10-outlet；11-aeration passage；
12-guide plate；13-flow-stopping plate；14-fluid passage；15-the first baffle plate；16-second baffle；17-refluxing opening；18-water-locator；
19-return flow line.
Detailed description of the invention
Embodiment 1
The whole process autotrophic denitrification reactor that the present embodiment provides is as it is shown in figure 1, include reactor shell 1, in described reaction
The bottom of device cylinder 1 is provided with water inlet 2, and top is provided with air vent 3；Uniform in order to make into water, the present embodiment described instead
In answering device cylinder 1, it is positioned at place above described water inlet 2 and is provided with water-locator 18.
The top of described reactor shell 1 is provided with nitrosation-anaerobic ammoxidation district 4, at described nitrosation-anaerobic ammonia
Being provided with the first filler assembly 5 in zoneofoxidation 4, the surface internal layer at described first filler assembly 5 is attached with anaerobic ammonia oxidizing bacteria,
Surface overcoats at described first filler assembly 5 is attached with nitrococcus；The present embodiment is arranged on described first filler assembly 5
Aeration passage 11, described aeration passage 11 is had to arrange ringwise, as in figure 2 it is shown, the first filler assembly 5 described in the present embodiment
For non-woven carrier, as selectable embodiment, described first filler assembly may select any filler of the prior art,
Such as biofringe filler, WPT filler etc..The top in described nitrosation-anaerobic ammoxidation district 4 is provided with membrane module 8, described
Membrane module 8 is positioned at the top of described first filler assembly.Membrane module 8 described in the present embodiment can use in prior art any
A kind of MBR film.Described membrane module 8 covers the cross section of described reactor shell 1 and arranges；Connect with the water outlet side of described membrane module 8
Leading to and be provided with outlet 10, the water outlet after described membrane module 8 filters is discharged by described outlet 10；In described nitrosation-detest
In anaerobic ammonium oxidation district 4 and be positioned at the lower section of described first filler assembly 5 and be provided with aerator；The venthole of described aerator
9 be provided with multiple, the plurality of venthole 9 be distributed in annular aeration passage 11 underface；Nitrosation described in the present embodiment-
The height in Anammox district 4 is 1:1-1:2 with the diameter ratio of described reactor shell 1；At described nitrosation-anaerobic ammonia oxygen
It is provided with refluxing opening 17 on the reactor shell 1 of the top changing district 4 and the lower section being positioned at described membrane module 8.
Being provided with the first three phase separator between described first filler assembly 5 and described membrane module 8, described first phase is divided
One group of separating plate is included from device.Separating plate includes guide plate 12 and flow-stopping plate 13；Wherein, described guide plate 12 and flow-stopping plate 13 are equal
Being obliquely installed, form fluid passage 14 before described guide plate 12 and flow-stopping plate 13, described fluid passage 14 is vertically
Gradually taper up from bottom to top, and reactor shell 1 cross section at the place, upper end of described flow-stopping plate 13 is positioned at described guide plate 12
The top of reactor shell 1 cross section at place；Described separating plate is correspondingly arranged with described aeration passage 11, is likewise provided as ring
Shape；The guide plate 12 of described separating plate is arranged on the surface of described aeration passage 11.Guide plate 12 described in the present embodiment with
The angle of horizontal direction is 30 degree；Described flow-stopping plate 13 is 40 degree with the angle of horizontal direction；As preferred embodiment, institute
The angle stating guide plate and horizontal direction could be arranged to 30-40 degree；Described flow-stopping plate can be arranged with the angle of horizontal direction
For 40-50 degree.Vertical dimension between upper end and the described flow-stopping plate 13 of described guide plate 12 is 5cm.
The bottom of described reactor shell 1 is provided with denitrification zone 6；It is provided with in described denitrification zone 6 and is attached with instead
Second filler assembly 7 of nitrifier, described second filler assembly 7 is Biofringe filler (BF filler).
The startup method of heretofore described whole process autotrophic denitrification reactor is:
1) on first filler assembly on reactor shell 1 top, first inoculate anammox mud, utilize artificial preparation to contain
Nitrogen waste water carries out cultivating domestication；Artificial wastewater's composition is as follows: NH4-N, 100mg/L；NO2-N, 100mg/L；KHCO3, 1.5-
2.0g/L；NaCl, 10g/L；KH2PO4, 54mg/L；FeSO4·7H2O, 9mg/L；EDTA, 5mg/L；Trace element, 1mL/L；Institute
The composition stating trace element is: CuSO4·5H2O, 0.25mg/L；ZnSO4·7H2O, 0.43mg/L；CoCl2·6H2O,
0.24mg/L；MnCl2·4H2O, 0.99mg/L；NaMoO4·2H2O, 0.22mg/L；NiCl2·6H2O, 0.19mg/L；
NaSeO4, 0.11mg/L；H3BO3, 0.014mg/L.Before cultivating domestication using artificial wastewater to carry out, first expose nitrogen to artificial wastewater
Gas, making into the dissolved oxygen concentration in water is 0, and the pH regulating described artificial wastewater is 7-8；2), after question response is stable, step up
Dissolved oxygen concentration in water inlet, can consume the antibacterial of oxygen in cultivating reactor；3) through cultivating domestication, the first filler assembly
Outer surface with oxygen bacterium of holding concurrently, can dissolved oxygen in consumption of reactor, build anaerobic condition for Anammox reaction；4) to having
First filler assembly surface seeding nitrococcus of anaerobic ammonia oxidizing bacteria, and reduce the nitrite nitrogen concentration in water inlet, carry out simultaneously
Aeration；5) after the top of question response device cylinder 1 realizes stable integral part nitrosation-anaerobic ammoxidation process, in reaction
The second filler assembly with denitrifying bacterium inoculated in advance is put in the bottom of device cylinder 1, it is achieved reactor shell 1 bottom
Denitrification processing procedure.
The whole process autotrophic denitrification reactor described in the present embodiment is used to carry out the technique of denitrogenation processing, including walking as follows
Rapid:
(1) after described whole process autotrophic denitrification reactor successfully starts up, enter formal denitrogenation processing step, by waste water by
The water inlet 2 of described whole process autotrophic denitrification reactor bottom is sent into, and the concentration of ammonia nitrogen is 800-850mg/L；Waste water described instead
Nitrification zone 6 carries out denitrification process, and waste water is 4h in the time of staying of described denitrification zone 6；
Complete the waste water after denitrification processes to rise to described nitrosation-anaerobic ammoxidation district 4 again and carry out nitrosation-anaerobic ammonia
Oxidation processes；Utilize described aerator that waste water is carried out aeration, control waste water in described nitrosation-anaerobic ammoxidation district 4
PH value is 7.5-8.0, and dissolved oxygen concentration is 0.3-0.5mg/L；As selectable embodiment, the concentration of described dissolved oxygen can
It is alternatively provided at below 1.0mg/L；Waste water is 4h in the time of staying in described nitrosation-anaerobic ammoxidation district 4；
Complete nitrosation-anaerobic ammoxidation process waste water in a part by described refluxing opening 17 be back to described in enter
The mouth of a river 2, reflux ratio is 1:3, and as selectable embodiment, reflux ratio may select 1:4-2:5.
(2) water outlet after described membrane module 8 filters is discharged via described outlet 10.
The water outlet discharging refluxing opening 17 described in the present embodiment detects, and the concentration of ammonia nitrogen is below 15mg/L, water
Matter is the cleanest, is then substantially free of ammonia nitrogen in the water outlet after membrane module filters.
Embodiment 2
The whole process autotrophic denitrification reactor that the present embodiment provides is as it is shown on figure 3, include reactor shell 1, in described reaction
The bottom of device cylinder 1 is provided with water inlet 2, and top is provided with air vent 3；Uniform in order to make into water, the present embodiment described instead
In answering device cylinder 1, it is positioned at place above described water inlet 2 and is provided with water-locator 18.
The top of described reactor shell 1 is provided with nitrosation-anaerobic ammoxidation district 4, at described nitrosation-anaerobic ammonia
Being provided with the first filler assembly 5 in zoneofoxidation 4, described first filler assembly is non-woven carrier；At described first filler assembly 5
Surface internal layer be attached with anaerobic ammonia oxidizing bacteria, the surface overcoats at described first filler assembly 5 is attached with nitrococcus；This reality
Executing example and be provided with aeration passage 11 on described first filler assembly 5, described aeration passage 11 is provided with two, and said two exposes
Gas passage along the formed symmetrical of described reactor shell, and is close to described reactor on the cross section of described reactor shell
The internal face of cylinder is arranged；In the inner side of described aeration passage, i.e. the side near described reactor shell axis also sets up
There is return flow line 19, as it is shown on figure 3, the described return flow line 19 in the present embodiment is also equipped with two.In described nitrosation-detest
The top in anaerobic ammonium oxidation district 4 is provided with membrane module 8；It is provided with and communicated with outlet 10 with the water outlet side of described membrane module 8；Described
In nitrosation-anaerobic ammoxidation district 4 and be positioned at the lower section of described first filler assembly 5 and be provided with aerator；Described aeration fills
The venthole 9 put is provided with two, and said two venthole 9 is distributed in the underface of said two aeration passage 11；This enforcement
The height of nitrosation-anaerobic ammoxidation district described in example 4 is 1:1-1:2 with the diameter ratio of described reactor shell 1；Described
It is provided with refluxing opening on the reactor shell 1 of the top in nitrosation-anaerobic ammoxidation district 4 and the lower section that is positioned at described membrane module 8
17。
The first three phase separator, described first three-phase it is provided with between described first filler assembly 5 and described membrane module 8
Separator includes two groups of separating plates.Separating plate includes guide plate 12 and flow-stopping plate 13；Wherein, described guide plate 12 and flow-stopping plate 13
All being obliquely installed, form fluid passage 14 before described guide plate 12 and flow-stopping plate 13, described fluid passage 14 is along vertically side
To gradually tapering up from bottom to top, and reactor shell 1 cross section at the place, upper end of described flow-stopping plate 13 is positioned at described guide plate
The top of reactor shell 1 cross section at 12 places；Described two groups of separating plates are corresponding with described two groups of aeration passages 11 respectively to be set
Put；The guide plate 12 of described two groups of separating plates is separately positioned on the surface of aeration passage 11 described in two groups, described two groups of separation
The flow-stopping plate 13 of plate then lays respectively at the surface of two described return flow lines 19.Guide plate 12 described in the present embodiment and level
The angle in direction is 30 degree；Described flow-stopping plate 13 is 40 degree with the angle of horizontal direction；The upper end of described guide plate 12 is with described
Vertical dimension between flow-stopping plate 13 upper end is 10cm.
The bottom of described reactor shell 1 is provided with denitrification zone 6；It is provided with in described denitrification zone 6 and is attached with instead
Second filler assembly 7 of nitrifier, described second filler assembly 7 is BF filler.
The present embodiment is additionally provided with the second three-phase between described denitrification zone 6 and described nitrosation-anaerobic ammoxidation district 4
Separator；Described second three phase separator includes: be positioned at the first baffle plate 15 of bottom, and described first baffle plate 15 is in truncated cone-shaped and edge
The circumferencial direction of described reactor shell 1 is arranged, and described first baffle plate 15 gradually tapers up, the most from top to bottom described
The center of the first baffle plate 15 is provided with throughbore；It is positioned at the second baffle 16 above described first baffle plate 15, described
The cone that two baffle plates 16 are arranged towards described reactor shell 1 in tip, the upper end of described second baffle 16 and described reaction
Current gap it is provided with between the internal face of device cylinder 1；Connection is formed described between described first baffle plate 15 and second baffle 16
Throughbore and the passage in described current gap.The said two venthole 9 of described aerator is distributed in described second baffle
The tip edges of 16.
The startup method of heretofore described whole process autotrophic denitrification reactor is with embodiment 1；Use described in the present embodiment
Whole process autotrophic denitrification reactor carry out the technique of denitrogenation processing also with embodiment 1, the present embodiment is owing to being provided with return flow line
19 so that the liquid stopped by flow-stopping plate and microorganism sludge can be refluxed by return flow line 19 (arrow in backflow direction such as Fig. 3
Shown in direction), thus in reactor cylinder body, form a circulation, further increase the time of staying of waste water and mud.Right
The water outlet that refluxing opening 17 in the present embodiment is discharged detects, and the concentration of ammonia nitrogen is below 10mg/L, clean water quality.
Embodiment 3
The whole process autotrophic denitrification reactor that the present embodiment provides includes reactor shell 1, at the end of described reactor shell 1
Portion is provided with water inlet 2, and top is provided with air vent 3；Uniform in order to make into water, the present embodiment in described reactor shell 1,
It is positioned at place above described water inlet 2 and is provided with water-locator 18.
The top of described reactor shell 1 is provided with nitrosation-anaerobic ammoxidation district 4, at described nitrosation-anaerobic ammonia
Being provided with the first filler assembly 5 in zoneofoxidation 4, described first filler assembly 5 is non-woven carrier；At described first filler assembly
The surface internal layer of 5 is attached with anaerobic ammonia oxidizing bacteria, and the surface overcoats at described first filler assembly 5 is attached with nitrococcus；This
Embodiment is provided with aeration passage 11 on described first filler assembly 5, and described aeration passage 11 is vertically arranged, this reality
Execute aeration passage described in example 11 and be provided with three, as shown in Figure 4 and Figure 5.Top in described nitrosation-anaerobic ammoxidation district 4
End is provided with membrane module 8, and membrane module 8 described in the present embodiment covers the cross section of described reactor shell 1 and arranges, with described film
The water outlet side of assembly 8 is provided with and communicated with outlet 10；In described nitrosation-anaerobic ammoxidation district 4 and be positioned at described first and fill out
The lower section of material assembly 5 is provided with aerator；The venthole 9 of described aerator is provided with three, described three ventholes 9 points
It is not positioned at the lower section of described three aeration passages 11；The height of nitrosation-anaerobic ammoxidation district described in the present embodiment 4 is with described
The diameter ratio of reactor shell 1 is 1:1-1:2；On the top in described nitrosation-anaerobic ammoxidation district 4 and be positioned at described film group
It is provided with refluxing opening 17 on the reactor shell 1 of the lower section of part 8.
The first three phase separator, described first three-phase it is provided with between described first filler assembly 5 and described membrane module 8
Separator includes three groups of separating plates.Often group separating plate includes guide plate 12 and flow-stopping plate 13；Wherein, described guide plate 12 and baffle
Plate 13 is all obliquely installed, and forms fluid passage 14 before described guide plate 12 and flow-stopping plate 13, and described fluid passage 14 is along perpendicular
Nogata to gradually tapering up from bottom to top, and reactor shell 1 cross section at the place, upper end of described flow-stopping plate 13 be positioned at described in lead
Top to reactor shell 1 cross section at plate 12 place；The upper extreme point of the flow-stopping plate 13 of described three groups of separating plates is uniformly distributed
On the cross section of described reactor shell 1；Described three groups of separating plates are arranged, often with described three aeration passage 11 one_to_one corresponding
The guide plate 12 organizing described separating plate is arranged on the surface of corresponding described aeration passage 11.
Guide plate 12 described in the present embodiment is 40 degree with the angle of horizontal direction；Described flow-stopping plate 13 and horizontal direction
Angle is 50 degree；Vertical dimension between upper end and described flow-stopping plate 13 upper end of described guide plate 12 is 10cm.
The bottom of described reactor shell 1 is provided with denitrification zone 6；It is provided with in described denitrification zone 6 and is attached with instead
Second filler assembly 7 of nitrifier, described second filler assembly 7 uses BF filler.
The present embodiment is additionally provided with the second three-phase between described denitrification zone 6 and described nitrosation-anaerobic ammoxidation district 4
Separator；Described second three phase separator includes: be positioned at the first baffle plate 15 of bottom, and described first baffle plate 15 is in truncated cone-shaped and edge
The circumferencial direction of described reactor shell 1 is arranged, and described first baffle plate 15 gradually tapers up, the most from top to bottom described
The center of the first baffle plate 15 is provided with throughbore；It is positioned at the second baffle 16 above described first baffle plate 15, described
The cone that two baffle plates 16 are arranged towards described reactor shell 1 in tip, the upper end of described second baffle 16 and described reaction
Current gap it is provided with between the internal face of device cylinder 1；Connection is formed described between described first baffle plate 15 and second baffle 16
Throughbore and the passage in described current gap.Described three ventholes 9 of described aerator are distributed in described second baffle
The tip edges of 16.As preferred embodiment, upper on described first baffle plate 15 and near described first baffle plate 15
Filter opening is distributed at end, and the aperture of described filter opening is 2-4mm, to avoid waste water to retain in this place.
The startup method of heretofore described whole process autotrophic denitrification reactor is with embodiment 1.
The whole process autotrophic denitrification reactor described in the present embodiment is used to carry out the technique of denitrogenation processing, including walking as follows
Rapid:
(1) in waste water, the concentration of nitrate nitrogen is less than 10mg/L；The concentration of ammonia nitrogen is 800-850mg/L；Waste water is described
Denitrification zone 6 carries out denitrification process, and waste water is 5h in the time of staying of described denitrification zone 6；
Complete the waste water after denitrification processes to rise to described nitrosation-anaerobic ammoxidation district 4 again and carry out nitrosation-anaerobic ammonia
Oxidation processes；Utilizing described aerator that waste water is carried out aeration, aeration rate is that (gas volume is standard to 4.4 ± 0.4L/min
Atmospheric pressure lower volume)；Controlling the pH value of waste water in described nitrosation-anaerobic ammoxidation district 4 is 7.5-8.0, and dissolved oxygen concentration is
Below 1mg/L；Waste water is 5h in the time of staying in described nitrosation-anaerobic ammoxidation district 4；
Complete nitrosation-anaerobic ammoxidation process waste water in a part by described refluxing opening 17 be back to described in enter
The mouth of a river 2, reflux ratio is 1:3, and as selectable embodiment, reflux ratio may select 1:4-2:5.
(2) water outlet after described membrane module 8 filters is discharged via described outlet 10.To the refluxing opening in the present embodiment
17 water outlets discharged detect, and the concentration of ammonia nitrogen is below 12mg/L, clean water quality.
Comparative example
The whole process autotrophic denitrification reactor that this comparative example provides is with embodiment 1, and it is anti-that unique difference is in this comparative example
Device is answered to be not provided with described first three phase separator.
The startup method of the whole process autotrophic denitrification reactor in this comparative example and denitrification process are with embodiment 1, handled
Waste water is also with embodiment 1.
The water outlet discharging described refluxing opening 17 detects, and wherein the concentration of ammonia nitrogen is 25-28mg/L, its ammonia nitrogen removal
Efficiency is less than embodiment 1, it can be seen that the present invention, by arranging described first three phase separator, can strengthen the purification effect of water quality
Really.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that, for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claim.
Claims (10)
1. a whole process autotrophic denitrification reactor, including: reactor shell, it is provided with into water in the bottom of described reactor shell
Mouthful, top is provided with air vent；
Nitrosation-anaerobic ammoxidation district, is arranged on the top of described reactor shell, in described nitrosation-anaerobic ammoxidation district
Inside it is provided with the first filler assembly；
Denitrification zone, is arranged on the bottom of described reactor shell, and described denitrification zone is provided with the second filler assembly；
It is characterized in that, described whole process autotrophic denitrification reactor also includes:
Membrane module, is positioned at the top in described nitrosation-anaerobic ammoxidation district, is provided with and communicated with out with the water outlet side of described membrane module
The mouth of a river；
Aerator, in being arranged on described nitrosation-anaerobic ammoxidation district and be positioned at the lower section of described first filler assembly；Institute
Stating and be provided with aeration passage on the first filler assembly, described aeration passage is vertically arranged；
It is additionally provided with the first three phase separator between described first filler assembly and described membrane module.
Whole process autotrophic denitrification reactor the most according to claim 1, it is characterised in that described first three phase separator includes
Separating plate, often group separating plate is provided with guide plate and flow-stopping plate；Wherein, described guide plate and flow-stopping plate are all obliquely installed, in institute
Forming fluid passage before stating guide plate and flow-stopping plate, described fluid passage gradually tapers up the most from bottom to top, and institute
The reactor shell at the place, upper end that the reactor shell cross section at the place, upper end stating flow-stopping plate is positioned at described guide plate is transversal
The top in face；
Described separating plate is correspondingly arranged with described aeration passage, and the guide plate of described separating plate is just being arranged on described aeration passage
Top.
Whole process autotrophic denitrification reactor the most according to claim 2, it is characterised in that described aeration passage is provided with many
Individual, the venthole of described aerator is also equipped with multiple, and the plurality of venthole lays respectively at the plurality of aeration passage
Lower section；
Described first three phase separator include multicomponent from plate, described multicomponent is from plate and the plurality of aeration passage one_to_one corresponding
Arranging, the guide plate often organizing described separating plate is arranged at the surface of corresponding described aeration passage.
4. according to the whole process autotrophic denitrification reactor described in Claims 2 or 3, it is characterised in that described aeration passage is near institute
The internal face stating reactor shell is arranged, and the inner side of described aeration passage is provided with return flow line, the baffle of described separating plate
Plate is arranged on the surface of described return flow line.
5. according to the arbitrary described whole process autotrophic denitrification reactor of claim 1-4, it is characterised in that described guide plate and level
The angle in direction is 30-40 degree；Described flow-stopping plate is 40-50 degree with the angle of horizontal direction.
6. according to the arbitrary described whole process autotrophic denitrification reactor of claim 1-5, it is characterised in that in described denitrification zone and
It is provided with the second three phase separator between described nitrosation-anaerobic ammoxidation district.
Whole process autotrophic denitrification reactor the most according to claim 6, it is characterised in that described second three phase separator bag
Include:
First baffle plate, in truncated cone-shaped and along described reactor shell circumferencial direction arrange, described first baffle plate is vertically
Gradually taper up from top to bottom, the center of described first baffle plate is provided with throughbore；
Second baffle, is positioned at above described first baffle plate；Described second baffle is that tip sets below described reactor shell
The cone put, is provided with current gap between upper end and the internal face of described reactor shell of described second baffle；Described
Formed between first baffle plate and second baffle and connect described throughbore and the passage in described current gap；Described aerator
Venthole is arranged on the upper end-face edge of described second baffle.
8. according to the arbitrary described whole process autotrophic denitrification reactor of claim 1-7, it is characterised in that in described nitrosation-detest
It is provided with refluxing opening on the reactor shell of the top in anaerobic ammonium oxidation district and the lower section that is positioned at described membrane module.
9. use the technique that the whole process autotrophic denitrification reactor described in claim 1-8 carries out denitrogenation processing, it is characterised in that
Comprise the steps:
(1) after described whole process autotrophic denitrification reactor successfully starts up, by waste water by described whole process autotrophic denitrification reactor bottom
Water inlet send into, waste water carries out denitrification process in described denitrification zone；
Complete the waste water after denitrification processes to rise to described nitrosation-anaerobic ammoxidation district again and carry out nitrosation-anaerobic ammoxidation
Process；Use described aerator to carry out oxygen-containing gas aeration, control the pH value of waste water in described nitrosation-anaerobic ammoxidation district
For 7.5-8.0, dissolved oxygen concentration is less than or equal to 1mg/L；
(2) the waste water warp after described membrane module filters completing nitrosation-anaerobic ammoxidation process is discharged by described outlet.
10. according to the technique of claim 9 denitrogenation processing, it is characterised in that on the top in described nitrosation-anaerobic ammoxidation district
And it is provided with refluxing opening on the reactor shell of the lower section being positioned at described membrane module, complete what nitrosation-anaerobic ammoxidation processed
A part in waste water is back to described water inlet by described refluxing opening, and reflux ratio is 1:4-2:5.
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| CN111533257A (en) * | 2020-04-14 | 2020-08-14 | 浙江海洋大学 | High ammonia nitrogen autotrophic nitrogen removal device |
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| CN111675437A (en) * | 2020-06-18 | 2020-09-18 | 中国科学院生态环境研究中心 | Method and device for treating inorganic ammonia nitrogen wastewater by electro-adsorption-anaerobic ammonia oxidation |
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| CN111606419A (en) * | 2020-06-01 | 2020-09-01 | 北京工业大学 | Sewage treatment system and method with self-sufficient energy |
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| CN116514287A (en) * | 2023-07-03 | 2023-08-01 | 成都理工大学 | Nitrate wastewater domestic sewage synchronous treatment device, system and method |
| CN116514287B (en) * | 2023-07-03 | 2023-09-08 | 成都理工大学 | Nitrate wastewater domestic sewage synchronous treatment device, system and method |
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