CN209161757U - A kind of removal of carbon and nitrogen device of high ammonia nitrogen low carbon-nitrogen ratio sewage - Google Patents
A kind of removal of carbon and nitrogen device of high ammonia nitrogen low carbon-nitrogen ratio sewage Download PDFInfo
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- CN209161757U CN209161757U CN201821600664.1U CN201821600664U CN209161757U CN 209161757 U CN209161757 U CN 209161757U CN 201821600664 U CN201821600664 U CN 201821600664U CN 209161757 U CN209161757 U CN 209161757U
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Abstract
The utility model provides a kind of removal of carbon and nitrogen device of high ammonia nitrogen low carbon-nitrogen ratio sewage, comprising: by the sequentially connected raw water box of pipeline, denitrification except carbon reactor, except intermediate water tank and ion exchange resin reactor after intermediate water tank, anaerobic ammonia oxidation reactor, ammoxidation after intermediate water tank, part short distance nitration reactor, nitrification after carbon；Each inside reactor is provided with online concentration detection device, and each reactor water outlet is provided with outlet valve；PH probe, DO probe and aeration head are additionally provided in the part short distance nitration reactor；Described device further includes PLC controller.Device provided by the utility model removes the carbon source in raw water by anti-nitration reaction economy, and without aeration, energy saving can remove the nitrate nitrogen and/or nitrite nitrogen of part again while except carbon.
Description
Technical field
The utility model relates to technical field of sewage, more particularly to a kind of denitrogenation of high ammonia nitrogen low carbon-nitrogen ratio sewage
Carbon removing device.
Background technique
COD (COD), ammonia nitrogen (NH4+- N), total nitrogen (TN) be index that wastewater treatment in China field is paid much attention to,
For high ammonia nitrogen, (ammonia nitrogen concentration is 100mg/L to 7000mg/L), low ratio of carbon to ammonium (C/N 0.8-1.3) sewage, such as cultivation is given up
Water, treatment of advanced stage landfill leachate, kitchen waste water anaerobic digestion solution etc., the prior art generally can be removed first using traditional active sludge
Carbon, then advanced nitrogen is carried out by nitrification, denitrification process.
During removing carbon using activated sludge process, it is aerated；Not only it had needed aeration energy consumption but also had had lost sewage
In original carbon source.
Traditional nitration denitrification denitrogenation is first to carry out nitration reaction, by mineralized nitrogen is nitrite nitrogen by aeration, then turns
Turn to nitrate nitrogen；Then it carries out anoxic denitrification and converts nitrate nitrogen to the process of nitrogen, for above-mentioned low C/N sewage, due to
Carbon source wretched insufficiency, traditional nitric efficiency are very low.To realize that advanced nitrogen usually needs to add a large amount of outer carbon sources, thus substantially
Increase sewage treatment expense.
Part short distance nitration combination anaerobic ammonia oxidation process denitrogenation is the denitrification process being concerned in recent years.Short distance nitration
Reaction is that nitrite oxidizing bacteria is eluriated out reactor by specifically regulating and controlling method, only retains ammonia oxidation bacteria, so that nitrification
Process final product is the process of nitrite nitrogen, compared to the aeration quantity that traditional nitration reaction can save 25%.Part short distance nitration
It is the control by aeration quantity and time so that dirty water part mineralized nitrogen is nitrite nitrogen, the process of remainder ammonia nitrogen,
Aeration quantity is further saved compared to short distance nitration.In practical application, the amount of nitrite nitrogen and the amount of ammonia nitrogen after usually control is aerated
Ratio be 1.32, meet enter anaerobic ammonia oxidation reactor water inlet requirement.Anammox reaction is in Anammox
Ammonia nitrogen and nitrite nitrogen is converted under the action of bacterium the autotrophic denitrification process of nitrogen and a small amount of nitrate nitrogen.Whole process is without exposing
Gas is not necessarily to additional carbon, greatly reduces the expense of sewage treatment.But for high-ammonia-nitrogen sewage, Anammox reaction is produced
Raw nitrate nitrogen cannot still reach discharge standard.
Utility model content
To solve the above problems, the utility model provides a kind of device of high ammonia nitrogen low carbon-nitrogen ratio sewage removal of carbon and nitrogen.
Specific technical solution is as follows:
A kind of removal of carbon and nitrogen device of high ammonia nitrogen low carbon-nitrogen ratio sewage, comprising:
By the sequentially connected raw water box of pipeline, denitrification except carbon reactor, except intermediate water tank, part short distance nitration after carbon
Intermediate water tank and ion exchange resin reactor after intermediate water tank, anaerobic ammonia oxidation reactor, ammoxidation after reactor, nitrification；
The denitrification removes carbon reactor, part short distance nitration reactor, anaerobic ammonia oxidation reactor and amberlite
The inside of rouge reactor is provided with online concentration detection device；
The denitrification removes carbon reactor, part short distance nitration reactor, anaerobic ammonia oxidation reactor and amberlite
The water outlet of rouge reactor is provided with outlet valve；
PH probe, DO probe and aeration head are additionally provided in the part short distance nitration reactor；The pH probe and DO
Probe is electrically connected with the host of pH/DO analyzer；The aeration head is connect with air compressor by pipeline；
Magnetic anion exchange resin is filled in the ion exchange resin reactor；
Described device is additionally provided with nitrate reflux line, and nitrate reflux line one end is connected to raw water box and anti-
On pipeline between nitration for removing carbon reactor, the other end is connected to intermediate water tank after the ammoxidation；
Described device further includes PLC controller, and the PLC controller is compressed with the host of pH/DO analyzer, air respectively
Machine, outlet valve, the communication connection of online concentration detection device.
In some specific embodiments of the utility model, removal of carbon and nitrogen device further include: water tank and effluent recycling
Pipeline；
The water tank is connected to the water outlet of the ion exchange resin reactor by pipeline；
Effluent recycling pipeline one end is connected to the water tank, and the other end is connected to intermediate water tank after the ammoxidation
With the pipeline between the ion exchange resin reactor；
Effluent recycling pump is provided on the effluent recycling pipeline；
The PLC controller and effluent recycling pump communicate to connect.
The pipeline between carbon reactor is being removed in raw water box and denitrification in some specific embodiments of the utility model
On be provided with the first intake pump；
The second intake pump is provided on pipeline after except carbon between intermediate water tank and part short distance nitration reactor；
Third intake pump is provided on the pipeline after nitrification between intermediate water tank and anaerobic ammonia oxidation reactor；
The 4th intake pump is provided on pipeline between intermediate water tank after ammoxidation and ion exchange resin reactor；
Nitrate reflux pump is provided on the nitrate reflux line；
The PLC controller respectively with first intake pump, the second intake pump, third intake pump, the 4th intake pump and
The communication connection of nitrate reflux pump.
On pipeline in some specific embodiments of the utility model between the aeration head and air compressor
It is provided with gas flowmeter；The PLC controller and the gas flowmeter communicate to connect.
It further include computer in some specific embodiments of the utility model, the computer and the PLC are controlled
Device communication connection.
The denitrification described in some specific embodiments of the utility model is sbr reactor device except carbon reactor；It is described
Part short distance nitration reactor is sbr reactor device；The anaerobic ammonia oxidation reactor is sbr reactor device or UASB reactor；Institute
Stating ion exchange resin reactor is sbr reactor device；
Blender is wherein provided in sbr reactor device, the PLC controller communicates to connect respectively with each blender.
Compared with prior art, the removal of carbon and nitrogen device tool of a kind of high ammonia nitrogen low carbon-nitrogen ratio sewage provided by the utility model
It has the advantage that
1 by anti-nitration reaction economy remove raw water in carbon source, without aeration, energy saving, remove carbon while again energy
Remove the nitrate nitrogen and/or nitrite nitrogen of part；
2 utilize part short distance nitration and anaerobic ammonia oxidation process denitrogenation, compared with traditional nitration denitrification denitrogenation, Ji Nengjie
Aeration energy consumption is saved, and without adding outer carbon source；
3 magnetic anion exchange resin grain diameters are small, and specific surface area is larger, and regeneration rate is high, and absorption nitrate ion is fast
Speed；Simultaneously as containing magnetisable material, it is easy aggregation sedimentation and is not easy to be lost with water flow；
4 can be realized advanced nitrogen except carbon without additional carbon, do not add carbon source and make it easy to the external source denitrification increased
Bacterial multiplication is slow, while the anaerobic ammonia oxidizing bacteria generation cycle is long, and multiplication rate is slow, so that excess sludge production is low；
The 5 different floras for being used for biochemical treatment work in different reactors, i.e., denitrifying bacterium is in denitrification except carbon is anti-
Work, ammonia oxidation bacteria in device is answered to work in the short distance nitration reactor of part, anaerobic ammonia oxidizing bacteria is in anaerobic ammonia oxidation reactor
Interior work, Each performs its own functions for flora, and inside reactor can be respectively adjusted to the suitable environment of suitable flora growth metabolism, avoided
The competition of each flora, is conducive to the biochemical stability of entire sewage disposal process in integral system；
6. accessible sewage raw water ammonia nitrogen concentration (100-7000mg/L) range is wide.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the removal of carbon and nitrogen schematic device of high ammonia nitrogen low carbon-nitrogen ratio sewage provided by the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of removal of carbon and nitrogen device of high ammonia nitrogen low carbon-nitrogen ratio sewage, as shown in Figure 1, comprising:
By the sequentially connected raw water box 1 of pipeline, denitrification except carbon reactor 2, except intermediate water tank 3, part short distance after carbon
Intermediate water tank 7 and ion exchange resin after intermediate water tank 5, anaerobic ammonia oxidation reactor 6, ammoxidation after nitrator 4, nitrification
Reactor 8；
Denitrification removes carbon reactor 2, part short distance nitration reactor 4, anaerobic ammonia oxidation reactor 6 and ion exchange resin
The inside of reactor 8 is provided with online concentration detection device 9；
Denitrification removes carbon reactor 2, part short distance nitration reactor 4, anaerobic ammonia oxidation reactor 6 and ion exchange resin
The water outlet of reactor 8 is provided with outlet valve 10；
PH probe 11, DO (dissolved oxygen) probe 12 and aeration head 13 are additionally provided in part short distance nitration reactor 4；PH is visited
First 11 and DO probe 12 is electrically connected with the host 14 of pH/DO analyzer；Aeration head 13 is connect with air compressor 15 by pipeline；
Magnetic anion exchange resin is filled in ion exchange resin reactor 8；
Removal of carbon and nitrogen device is additionally provided with nitrate reflux line 16, and nitrate reflux line one end is connected to raw water box 1
And denitrification is except on the pipeline between carbon reactor 2, the other end is connected to intermediate water tank 7 after the ammoxidation；
Removal of carbon and nitrogen device further includes PLC controller 17, PLC controller 17 respectively with the host 14 of pH/DO analyzer, empty
Air compressor 15, outlet valve 10, online concentration detection device 9 communicate to connect.
In some specific embodiments of the utility model, denitrification is except there are denitrifying bacterium activity in carbon reactor 2
Sludge；There are ammonia oxidation bacteria activated sludge in part short distance nitration reactor 4；There are anaerobism ammonia in anaerobic ammonia oxidation reactor 6
Oxidation bacteria activated sludge.
In the specific implementation process of the utility model, contained by the dissolved oxygen in control section short distance nitration reactor 4
Nitrite oxidizing bacteria in activated sludge can be eluriated out part short distance by amount, pH value, temperature and free nitrous acid concentration etc.
Nitrator 4 only retains ammonia oxidation bacteria, so that nitrifying process final product is nitrite nitrogen, saves compared to complete nitrification
25% aeration quantity；It should be noted that this removal nitrite oxidizing bacteria, and the control mode for retaining ammonia oxidation bacteria is this
Well known to the technical staff of field, the utility model is herein without limiting.
In some specific embodiments of the utility model, aeration head 13 can be fixed on part short distance nitration reactor
4 bottoms.
In some specific embodiments of the utility model, online concentration detection device be specifically as follows COD, ammonia nitrogen,
The automatic on-line concentration mensuration equipment of the indexs such as nitrite nitrogen, nitrate nitrogen, such as flow injection analyzer；And it can will measure number
According to being uploaded to PLC controller.
In some specific embodiments of the utility model, PLC controller 17 is provided with signal feedback/control interface
28；PLC controller 17 fed back by the signal and control interface 28 respectively with host 14, the air compressor of pH/DO analyzer
15, outlet valve 10, online concentration detection device 9 communicate to connect；By communication connection, PLC controller 17 be may be implemented to sky
The control of air compressor 15, outlet valve 10 etc., and receive pH/DO analyzer 14, the correlation that line concentration detection device 9 is fed back
Data information.Certainly, the host 14 of pH/DO analyzer, air compressor 15, outlet valve 10, online concentration detection device 9 also have
Standby corresponding communication interface, for being communicated with PLC controller 17.
In some specific embodiments of the utility model, PLC controller 17 is also communicated to connect with computer 27；Specifically
Ground, PLC controller 17 are provided with signal output interface 29, are communicated to connect by this interface and computer 27；For in computer
The related data information etc. that pH/DO analyzer 14, line concentration detection device 9 are fed back is shown on 27.
It should be noted that those skilled in the art can be according to this for PLC controller used by the utility model
Description of the utility model at this to its function and/or purposes, its specific structure etc. is realized using the relevant prior art；This
Utility model is herein without specifically limiting.
In some specific embodiments of the utility model, removal of carbon and nitrogen device further include: water tank 18 and effluent recycling
Pipeline 19；
The water tank 18 is connected to the water outlet of ion exchange resin reactor 8 by pipeline；
Described 19 one end of effluent recycling pipeline is connected to the water tank 18, and the other end is connected to centre after the ammoxidation
Pipeline between water tank 7 and the ion exchange resin reactor 8；
Effluent recycling pump 20 is provided on the effluent recycling pipeline 19；
The PLC controller 17 and 20 communication connection of effluent recycling pump；Specifically, effluent recycling pump 20 is also equipped with
Communication interface；PLC controller 17 is led to by the communication interface of its signal feedback/control interface 28 and effluent recycling pump 20
Letter, for controlling the opening and closing etc. of effluent recycling pump 20.
When the nitrate of sewage after the ammoxidation in intermediate water tank 7 is greater than 110mg/L, make depositing in water tank 18
Water reflux, and entered in ion exchange resin reactor 8 after being mixed with the water outlet of intermediate water tank 7 after ammoxidation, so that into
Nitrate to the sewage in ion exchange resin reactor 8 is 50-110mg/L.
In some specific embodiments of the utility model, in raw water box 1 and denitrification except the pipe between carbon reactor 2
The first intake pump 21 is provided on road；
The second intake pump 22 is provided on pipeline after except carbon between intermediate water tank 3 and part short distance nitration reactor 4；
Third intake pump 23 is provided on the pipeline after nitrification between intermediate water tank 5 and anaerobic ammonia oxidation reactor 6；
The 4th intake pump is provided on the pipeline after ammoxidation between intermediate water tank 7 and ion exchange resin reactor 8
24；
Nitrate reflux pump 25 is provided on the nitrate reflux line 16；
The PLC controller 17 respectively with first intake pump 21, the second intake pump 22, third intake pump the 23, the 4th
Intake pump 24 and nitrate reflux pump 25 communicate to connect；Specifically, each water pump is also equipped with communication interface；PLC controller 17 is logical
It crosses its signal feedback/control interface 28 to be communicated with the communication interface of each water pump, for controlling the opening and closing of each water pump
Deng.
Pipeline in some specific embodiments of the utility model, between the aeration head 13 and air compressor 15
On be provided with gas flowmeter 26；PLC controller 17 and the gas flowmeter communicate to connect, for accurately control aeration
Amount.
In some specific embodiments of the utility model, denitrification can be SBR (Sequencing except carbon reactor 2
Batch Reactor, sequencing batch reactor) reactor；
Part short distance nitration reactor 4 can be sbr reactor device；
Anaerobic ammonia oxidation reactor 6 be can be sbr reactor device or UASB (Up-flow Anaerobic Sludge
Bed, continuous flow upflow anaerobic sludge blanket process) reactor；
Ion exchange resin reactor 8 can be sbr reactor device；
Wherein when each reactor specifically uses sbr reactor device, blender 30, the PLC controller 17 is arranged inside
It is communicated to connect respectively with each blender 30；Specifically, each blender 30 is also equipped with communication interface；PLC controller 17 passes through it
Signal feedback/control interface 28 is communicated with the communication interface of each blender 30, for control each blender 30 start and stop and
Revolving speed etc..
The utility model additionally provides the method for handling high ammonia nitrogen low carbon-nitrogen ratio sewage using removal of carbon and nitrogen device above-mentioned,
Include:
(1) denitrification removes carbon process: make nitrate nitrogen sewage after the raw water and ammoxidation in raw water box in intermediate water tank into
Enter to denitrification to remove in carbon reactor and carries out anti-nitration reaction；The regurgitant volume of nitrate nitrogen sewage and the inflow of raw water are adjusted, with
Enable the COD in raw water after meeting removal denitrification except the nitrate nitrogen in carbon reactor, surplus can also meet
The remaining nitrite nitrogen of a upper process cycle, and part short distance nitration are removed by denitrification in the short distance nitration reactor of part
The COD value of reactor water outlet meets emission request；Denitrification enters except the water outlet of carbon reactor except in intermediate water tank after carbon；
(2) part short distance nitration process: make to enter part short distance nitration reactor except the sewage after carbon in intermediate water tank
In, anti-nitration reaction is first carried out, removes the remaining nitrite nitrogen of a upper process cycle using the COD in sewage；Then it carries out
Aeration increases the dissolved oxygen content in water；
Dissolved oxygen content, pH value, temperature and free nitrous acid concentration in the short distance nitration reactor of control section, so that dirty
Water carries out short distance nitration reaction；And by the control to aeration quantity and aeration time, make in the water outlet of part short distance nitration reactor
The amount of nitrite nitrogen and the amount ratio of ammonia nitrogen are 1.32；The water outlet of part short distance nitration reactor enters intermediate water tank after nitrification；
(3) anaerobic ammonium oxidation process: entering the sewage after nitrifying in intermediate water tank in anaerobic ammonia oxidation reactor, into
The reaction of row Anammox；The water outlet of anaerobic ammonia oxidation reactor enters intermediate water tank after ammoxidation；
(4) magnetic resin adsorption process: the sewage after ammoxidation in intermediate water tank is made to enter ion exchange resin reaction
In device, the nitrate nitrogen in sewage is removed by magnetic anion exchange resin, so that in the water outlet of ion exchange resin reactor
Nitrate is 20-80mg/L.
It should be noted that " carbon " or " carbon source " described in the utility model refers to organic matter, refer in particular in water
Organic pollutant, these organic pollutants can be utilized by heterotrophic bacteria, and then be removed；Herein, also (changed with COD sometimes
Learn oxygen demand) it indicates.
Described raw water refers to sewage to be processed, such as breeding wastewater, treatment of advanced stage landfill leachate, meal in the utility model
Kitchen wastewater anaerobic digestive fluid etc..
Described nitrate nitrogen (NO in the utility model3 -- N) refer to nitrogen contained in nitrate；Nitrite nitrogen
(NO2 -- N) refer to nitrogen contained in nitrite；Ammonia nitrogen (NH4+- N) refer to free ammonia (NH3) and ammonium ion (NH4 +)
Contained nitrogen.
It is removed in carbon process (1) in the denitrification of the utility model, entering denitrification and removing water in carbon reactor includes two
Point, first is that raw water, second is that the nitrate nitrogen sewage returned by nitrate reflux line；It, can be according in actual process
Following principle adjusts the regurgitant volume of nitrate nitrogen sewage and the inflow of raw water:
It is substantially carried out anti-nitration reaction due to removing in carbon reactor in denitrification, is needed in denitrification process using in sewage
Carbon source, therefore enter denitrification except the raw water in carbon reactor first has to meet removal denitrification except the nitre in carbon reactor
State nitrogen；
It, can't will be in reactor all secondly as after each process cycle of part short distance nitration reactor
Water discharge, but generally discharge 50%-70% water；So for the short distance nitration reactor of part, one processing
End cycle after draining, can also have a certain amount of sewage containing nitrite nitrogen in device；Therefore the COD in raw water is being passed through
After denitrification is crossed except the denitrification removal in carbon reactor, COD surplus will also be can satisfy in part short distance nitration reactor
It is interior that the remaining nitrite nitrogen of a upper process cycle is removed by denitrification；Meanwhile the COD of part short distance nitration reactor water outlet
Value meets emission request.
, can be according to the COD amount in raw water in specific implementation process, the nitrate, part in nitrate nitrogen sewage are short
The amount of the remaining nitrite nitrogen of a upper process cycle calculates and adjusts the regurgitant volume of nitrate nitrogen sewage in journey nitrator
With the inflow of raw water.
In part short distance nitration process (2), except the sewage after carbon in intermediate water tank enters the reaction of part short distance nitration
In device, first without aeration, make first to carry out anti-nitration reaction in reactor, removed upper processing week using the COD in sewage
Phase remaining nitrite nitrogen；When nitrite nitrogen concentration is following lower than the detection limit of online concentration detection device, it is aerated, is increased
Add the dissolved oxygen content in water, carries out nitration reaction；Pass through dissolved oxygen content, the pH in the short distance nitration reactor of control section
Value, temperature and free nitrous acid concentration only retain ammonia oxidation bacteria so that nitrite oxidizing bacteria is eluriated out reactor；Therefore,
It is nitrous state that sewage in the short distance nitration reactor of part, which only carries out short distance nitration reaction namely the final product of nitrifying process,
Nitrogen；Further, by controlling aeration quantity and aeration time, the reaction of part short distance nitration is only carried out, so that part is short
The amount of nitrite nitrogen and the amount ratio of ammonia nitrogen are 1.32 in the water outlet of journey nitrator.The amount and ammonia of nitrite nitrogen mentioned here
The amount ratio of nitrogen is 1.32, refers to the molar ratio of nitrite nitrogen and ammonia nitrogen.
In some specific embodiments of the utility model, magnetic anion exchange resin partial size is about 180 μm, water flowing times
Number is set as 200-400BV (i.e. 2.5-5mL/L).
In some specific embodiments of the utility model, during denitrification removes carbon, PLC controller can be passed through
Control the regurgitant volume of nitrate nitrogen sewage and the inflow of raw water.
In some specific embodiments of the utility model, in part during short distance nitration, pass through PLC controller control
Aeration quantity and aeration time processed, so that the amount of Nitrite In Polluted Water nitrate nitrogen and the amount ratio of ammonia nitrogen are after the reaction of part short distance nitration
1.32。
In some specific embodiments of the utility model, in magnetic resin adsorption process, ion exchange is entered
The nitrate of sewage in resin reaction device is 50-110mg/L；
When the nitrate of sewage after the ammoxidation in intermediate water tank is greater than 110mg/L, keep ion exchange resin anti-
The part effluent recycling of device is answered, and enters ion exchange resin reactor after mixing with the water outlet of intermediate water tank after ammoxidation
In, so that the nitrate for entering the sewage in ion exchange resin reactor is 50-110mg/L.
Below by specific embodiment, filled using the removal of carbon and nitrogen of high ammonia nitrogen low carbon-nitrogen ratio sewage provided by the utility model
It sets, the method for processing sewage provided by the utility model is illustrated.
Embodiment 1
The removal of carbon and nitrogen device of its high ammonia nitrogen low carbon-nitrogen ratio sewage applied is as shown in Figure 1, include
By the sequentially connected raw water box 1 of pipeline, denitrification except carbon S reactor 2, except intermediate water tank 3, part short distance after carbon
Intermediate water tank 7, ion exchange resin after intermediate water tank 5, anaerobic ammonia oxidation reactor 6, ammoxidation after nitrator 4, nitrification
Reactor 8 and water tank 18；
The denitrification removes carbon sbr reactor device 2, part short distance nitration sbr reactor device 4, Anammox sbr reactor device 6
And ion exchange resin sbr reactor device 8 is all made of sbr reactor device；
The denitrification removes carbon reactor 2, part short distance nitration reactor 4, anaerobic ammonia oxidation reactor 6 and ion exchange
The inside of resin reaction device 8 is provided with blender 30 and online concentration detection device 9；
The denitrification removes carbon reactor 2, part short distance nitration reactor 4, anaerobic ammonia oxidation reactor 6 and ion exchange
The water outlet of resin reaction device 8 is provided with outlet valve 10；
PH probe 11, DO probe 12 and aeration head 13 are additionally provided in the part short distance nitration reactor 2；The pH is visited
First 11 and DO probe 12 is electrically connected with the host 14 of pH/DO analyzer；The aeration head 13 passes through pipeline with air compressor 15
Connection；Gas flowmeter 26 is provided on pipeline between the aeration head 13 and air compressor 15；
Magnetic anion exchange resin is filled in the ion exchange resin reactor 8；
Described device is additionally provided with effluent recycling pipeline 19, and one end is connected to the water tank 18, and the other end is connected to
Pipeline after the ammoxidation between intermediate water tank 7 and the ion exchange resin reactor 8；
Described device is additionally provided with nitrate reflux line 16, and described 16 one end of nitrate reflux line is connected to raw water box
1 and denitrification except on the pipeline between carbon reactor 2, the other end is connected to intermediate water tank 7 after the ammoxidation；
It is removed in raw water box 1 and denitrification and is provided with the first intake pump 21 on the pipeline between carbon reactor 2；
The second intake pump 22 is provided on pipeline after except carbon between intermediate water tank 3 and part short distance nitration reactor 4；
Third intake pump 23 is provided on the pipeline after nitrification between intermediate water tank 5 and anaerobic ammonia oxidation reactor 6；
The 4th intake pump is provided on the pipeline after ammoxidation between intermediate water tank 7 and ion exchange resin reactor 8
24；
Nitrate reflux pump 25 is provided on the nitrate reflux line 16；It is arranged on the effluent recycling pipeline 19
There is effluent recycling to pump 20；
Described device further includes PLC controller 17, the PLC controller 17 respectively with the host 14 of pH/DO analyzer, empty
Air compressor 15, the blender 30 of each reactor, outlet valve 10, each water pump, online concentration detection device 9 communicate to connect；PLC control
Device 17 processed is also communicated to connect with a computer 27.
Each reactor is made of organic glass, and denitrification is 10L except carbon reactor dischargeable capacity, and draining is than being 70%；
Part short distance nitration reactor dischargeable capacity is 10L, and draining controls dissolved oxygen in reactor and be lower than than being 70% in aeration process
1.2mg/L；Anaerobic ammonia oxidation reactor dischargeable capacity is 12L, and Anammox flora is sponge filler biofilm shape in reactor
State, no suspended sludge exist, and draining is than being 100%；Magnetic ion exchange resin reactor dischargeable capacity is 8L, and draining ratio is
90%.Reactor is under room temperature.
Certain treatment of advanced stage landfill leachate COD concentration is 994mg/L, total nitrogen concentration 1003mg/L, ammonia nitrogen concentration 986mg/
L, by steps of processing:
(1) start each reactor: denitrification is inoculated with city domestic sewage treatment plant secondary settling tank excess sludge except carbon reactor,
Controlling sludge concentration in reactor is 3500-4500mg/L；Part short distance nitration reactor is equally inoculated at city domestic sewage
Manage factory's secondary settling tank excess sludge, controlling sludge concentration in reactor is 3500-4500mg/L, be pumped into using ammonium bicarbonate soln and
The simulated wastewater that microelement needed for other flora growths is prepared, wherein ammonia nitrogen concentration is 1000mg/L, is controlled in reactor
Dissolved oxygen concentration is less than 1.2mg/L in aeration process, is aerated certainly when pH change curve switchs to rise by declining in reaction process
It is dynamic to stop, continuing to repeat aeration of intaking after draining is idle, by the domestication in 36 periods, stable short distance nitre is realized in reactor
Change, nitrite nitrogen accumulation rate reaches 98% or more；The good Anammox pilot scale of inoculating active in anaerobic ammonia oxidation reactor
Sponge filler biofilm sludge, the packing ratio of filler are 15%；Magnetic anion is added in magnetic ion exchange resin sbr reactor device
Exchanger resin, the water flowing multiple for controlling resin in reactor is 300BV.
(2) connect each reactor: when the water in each water tank meets inflow demand, reactor automatic feeding water will be each
Treatment of advanced stage landfill leachate is added after stablizing in reactor series operation in raw water box.
(3) denitrification removes carbon reactor: in each reactor after line concentration detection device calculates control ammoxidation
Between in water tank the inflow of nitrate nitrogen solution regurgitant volume and raw water inlet tank be 1:1 so that the enough denitrifications of influent COD remove ammonia
Remaining nitrite nitrogen of upper period in the nitrate nitrogen and part short distance nitration reactor to flow back in intermediate water tank after oxidation.Reaction
Afterwards, it is 217mg/L that denitrification, which removes the COD concentration of carbon reactor water outlet, and nitrate nitrogen concentration is 0, ammonia nitrogen concentration 557mg/L.
(4) part short distance nitration reactor: during water inlet, the COD denitrification in water inlet removes remaining Asia of upper period
Nitrate nitrogen then begins to be aerated, and controlling dissolved oxygen concentration in reactor is 0.5mg/L, after being aerated 3.25h, according to online concentration
The display of detection device, nitrite nitrogen and ammonia nitrogen concentration ratio reach 1.32 at this time, and PLC controller control is automatically stopped aeration,
Ammonia nitrogen concentration is 211mg/L at this time, and nitrite nitrogen concentration is 280mg/L, and it is because being aerated that total nitrogen concentration reduces before being relatively aerated
Inside reactor dissolved oxygen is lower in journey, and synchronous short-cut nitrification and denitrification reaction has occurred；
(5) anaerobic ammonia oxidation reactor: stirring 3.3h after water inlet, online concentration detection device detects ammonia nitrogen and nitrous state
Nitrogen concentration is below detection limit hereinafter, proved response terminates, and stirring is automatically stopped, and nitrate is in reactor at this time
51mg/L；
(6) water of intermediate water tank after intaking all ammoxidations, the i.e. water of water tank ion exchange resin reactor: are adjusted
Without reflux, stirring is so that resin is sufficiently mixed with sewage, when nitrate is 35mg/L in inside reactor mixed liquor,
It is automatically stopped stirring, magnetic resin settles rapidly, and 10min post-reactor is drained to water tank.Final outflow water COD concentration is
97mg/L, total nitrogen concentration 35mg/L, better than discharge standard (COD concentration is 100mg/L, total nitrogen concentration 40mg/L).
Embodiment 2
Anaerobic ammonia oxidation reactor form in embodiment 1 is changed to UASB reactor, UASB reactor by sbr reactor device
Mainly it is made of parts such as drainage area, main reaction region, three-phase separation area, settling zone, gas collector and reflux units, it is high
For 1.2m, internal diameter 12cm, reaction zone dischargeable capacity is 12L, wraps up black sponge outside reactor, protects its internal anaerobism ammonia
Oxidation bacteria is not illuminated by the light influence, bottom continuum micromeehanics, top continuous effluent.UASB reactor is because being not necessarily to stirring, so removing Fig. 1
Shown in blender inside anaerobic ammonia oxidation reactor, while removing the control of the blender in its corresponding PLC controller and connecing
Mouthful.Other devices are identical as Fig. 1.
Certain breeding wastewater COD concentration is 5220mg/L, total nitrogen concentration 4951mg/L, ammonia nitrogen concentration 4923mg/L, warp
Cross steps of processing:
(1) start each reactor: denitrification is inoculated with city domestic sewage treatment plant secondary settling tank excess sludge except carbon reactor,
Controlling sludge concentration in reactor is 3500-4500mg/L；Part short distance nitration reactor is equally inoculated at city domestic sewage
Manage factory's secondary settling tank excess sludge, controlling sludge concentration in reactor is 3500-4500mg/L, be pumped into using ammonium bicarbonate soln and
The simulated wastewater that microelement needed for other flora growths is prepared, wherein ammonia nitrogen concentration is 5000mg/L, is controlled in reactor
Dissolved oxygen concentration is less than 2mg/L in aeration process, and when pH change curve switchs to rise by declining in reaction process, aeration is automatic
Stop, continuing to repeat aeration of intaking after draining is idle, by the domestication in 20 periods, stable short distance nitre is realized in reactor
Change, nitrite nitrogen accumulation rate reaches 98% or more；The good Anammox of inoculating active in Anammox UASB reactor
The mixing sludge of two kinds of forms of pilot scale sponge filler biofilm sludge and granule sludge；In magnetic ion exchange resin sbr reactor device
Magnetic anion exchange resin is added, the water flowing multiple for controlling resin in reactor is 200BV.
(2) connect each reactor: when the water in each water tank meets inflow demand, reactor automatic feeding water will be each
Breeding wastewater is added after stablizing in reactor series operation in raw water box.
(3) denitrification removes carbon reactor: in each reactor after line concentration detection device calculates control ammoxidation
Between in water tank the inflow of nitrate nitrogen solution regurgitant volume and raw water box be 4:3 so that the enough denitrifications of influent COD remove ammoxidation
Remaining nitrite nitrogen of upper period in the nitrate nitrogen and part short distance nitration sbr reactor device to flow back in intermediate water tank afterwards.Reaction
COD concentration is 2364mg/L afterwards, and nitrate nitrogen concentration is 0, ammonia nitrogen concentration 2273mg/L.
(4) part short distance nitration reactor: during water inlet, the COD denitrification in water inlet removes remaining Asia of upper period
Nitrate nitrogen then begins to be aerated, and controlling dissolved oxygen concentration in reactor is 1mg/L, after being aerated 5.5h, according to online Concentration Testing
The display of equipment, nitrite nitrogen and ammonia nitrogen concentration ratio reach 1.32 at this time, and PLC controller control is automatically stopped aeration, at this time
Ammonia nitrogen concentration is 821mg/L, and nitrite nitrogen concentration is 1084mg/L, and it is because of aeration process that total nitrogen concentration reduces before being relatively aerated
Middle inside reactor dissolved oxygen is lower, and synchronous short-cut nitrification and denitrification reaction has occurred.
(5) anaerobic ammonia oxidation reactor: reactor hydraulic detention time is 8h, and reactor effluent nitrate-nitrogen concentration is
207mg/L。
(6) ion exchange resin reactor: adjusting water inlet is the water of intermediate water tank and the water volume of water tank after ammoxidation
Than for 1:4, mixing moment, nitrate is 105mg/L in reactor, is stirred so that resin is sufficiently mixed with sewage, when anti-
When to answer in device internal mix liquid nitrate be 75mg/L, it is automatically stopped stirring, magnetic resin precipitates rapidly, after 10min instead
Device is answered to drain to water tank.Final outflow water COD concentration is 374mg/L, total nitrogen concentration 75mg/L, and better than discharge standard, (COD is dense
Degree is 400mg/L, total nitrogen concentration 80mg/L).
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.
The above is only the preferred embodiment of the utility model only, is not intended to limit the protection model of the utility model
It encloses.Any modification, equivalent substitution, improvement and etc. made within the spirit and principle of the present invention, are all contained in this reality
With in novel protection scope.
Claims (6)
1. a kind of removal of carbon and nitrogen device of high ammonia nitrogen low carbon-nitrogen ratio sewage characterized by comprising
By the sequentially connected raw water box of pipeline, denitrification except carbon reactor, except intermediate water tank, the reaction of part short distance nitration after carbon
Intermediate water tank and ion exchange resin reactor after intermediate water tank, anaerobic ammonia oxidation reactor, ammoxidation after device, nitrification；
The denitrification is anti-except carbon reactor, part short distance nitration reactor, anaerobic ammonia oxidation reactor and ion exchange resin
The inside of device is answered to be provided with online concentration detection device；
The denitrification is anti-except carbon reactor, part short distance nitration reactor, anaerobic ammonia oxidation reactor and ion exchange resin
The water outlet of device is answered to be provided with outlet valve；
PH probe, DO probe and aeration head are additionally provided in the part short distance nitration reactor；The pH probe and DO probe
It is electrically connected with the host of pH/DO analyzer；The aeration head is connect with air compressor by pipeline；
Magnetic anion exchange resin is filled in the ion exchange resin reactor；
Described device is additionally provided with nitrate reflux line, and nitrate reflux line one end is connected to raw water box and denitrification
Except on the pipeline between carbon reactor, the other end is connected to intermediate water tank after the ammoxidation；
Described device further includes PLC controller, the PLC controller respectively with the host of pH/DO analyzer, air compressor,
Outlet valve, the communication connection of online concentration detection device.
2. the removal of carbon and nitrogen device of high ammonia nitrogen low carbon-nitrogen ratio sewage as described in claim 1, which is characterized in that further include: go out
Water tank and effluent recycling pipeline；
The water tank is connected to the water outlet of the ion exchange resin reactor by pipeline；
Effluent recycling pipeline one end is connected to the water tank, and the other end is connected to intermediate water tank and institute after the ammoxidation
State the pipeline between ion exchange resin reactor；
Effluent recycling pump is provided on the effluent recycling pipeline；
The PLC controller and effluent recycling pump communicate to connect.
3. the removal of carbon and nitrogen device of high ammonia nitrogen low carbon-nitrogen ratio sewage as described in claim 1, which is characterized in that
It is removed in raw water box and denitrification and is provided with the first intake pump on the pipeline between carbon reactor；
The second intake pump is provided on pipeline after except carbon between intermediate water tank and part short distance nitration reactor；
Third intake pump is provided on the pipeline after nitrification between intermediate water tank and anaerobic ammonia oxidation reactor；
The 4th intake pump is provided on pipeline between intermediate water tank after ammoxidation and ion exchange resin reactor；
Nitrate reflux pump is provided on the nitrate reflux line；
The PLC controller respectively with first intake pump, the second intake pump, third intake pump, the 4th intake pump and nitric acid
The communication connection of salt reflux pump.
4. the removal of carbon and nitrogen device of high ammonia nitrogen low carbon-nitrogen ratio sewage as described in claim 1, which is characterized in that in the aeration
Gas flowmeter is provided on pipeline between head and air compressor；The PLC controller is communicated with the gas flowmeter
Connection.
5. the device of high ammonia nitrogen low carbon-nitrogen ratio sewage removal of carbon and nitrogen as described in claim 1, which is characterized in that
It further include computer, the computer and the PLC controller communicate to connect.
6. the removal of carbon and nitrogen device of high ammonia nitrogen low carbon-nitrogen ratio sewage according to any one of claims 1 to 5, which is characterized in that
The denitrification is sbr reactor device except carbon reactor；
The part short distance nitration reactor is sbr reactor device；
The anaerobic ammonia oxidation reactor is sbr reactor device or UASB reactor；
The ion exchange resin reactor is sbr reactor device；
Blender is wherein provided in sbr reactor device, the PLC controller communicates to connect respectively with each blender.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095727A (en) * | 2018-09-29 | 2018-12-28 | 北京安国水道自控工程技术有限公司 | A kind of removal of carbon and nitrogen device and method of high ammonia nitrogen low carbon-nitrogen ratio sewage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095727A (en) * | 2018-09-29 | 2018-12-28 | 北京安国水道自控工程技术有限公司 | A kind of removal of carbon and nitrogen device and method of high ammonia nitrogen low carbon-nitrogen ratio sewage |
| CN109095727B (en) * | 2018-09-29 | 2024-02-20 | 北京安国水道自控工程技术有限公司 | Denitrification and carbon removal device and method for high-ammonia-nitrogen low-carbon-nitrogen-ratio sewage |
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