CN108773901A - A kind of devices and methods therefor for realizing short distance nitration - Google Patents
A kind of devices and methods therefor for realizing short distance nitration Download PDFInfo
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- CN108773901A CN108773901A CN201810444023.XA CN201810444023A CN108773901A CN 108773901 A CN108773901 A CN 108773901A CN 201810444023 A CN201810444023 A CN 201810444023A CN 108773901 A CN108773901 A CN 108773901A
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- distance nitration
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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
- C02F3/302—Nitrification and denitrification treatment
- C02F3/307—Nitrification and denitrification treatment characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process
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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
- C02F3/02—Aerobic processes
- C02F3/04—Aerobic processes using trickle filters
- C02F3/046—Soil filtration
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Biodiversity & Conservation Biology (AREA)
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- Environmental & Geological Engineering (AREA)
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of devices and methods therefors for realizing short distance nitration, are related to sewage and denitrogenate field.Present invention employs artificial rapid infiltration systems as the device for realizing short distance nitration, and inhibitor configured pool is set above, inhibitor solution is directly added into sewage, convenient for inhibitor as sewage is added into device and is uniformly mixed, omit addition and the agitating procedure of inhibitor, efficiency is improved, cost is reduced.The present invention in the short distance nitration stage by adding certain density potassium chlorate, it is set to generate inhibiting effect to nitrite oxidizing bacteria, to promote the accumulation of nitrite nitrogen during short distance nitration, material base and energy foundation are provided for subsequent denitrification denitrogenation or Anammox denitrogenation, to effectively save oxygen demand, energy consumption is reduced, the progress of efficient denitrification is contributed to.Therefore, the method for above-mentioned realization short distance nitration and its device have important application value.
Description
Technical field
The present invention relates to sewage to denitrogenate work technical field, and in particular to a kind of devices and methods therefor for realizing short distance nitration.
Background technology
Efficient denitrification is the hot issue that current sewage denitrogenates area research.Filter column (Constructed Rapid
Infiltration system, abbreviation CRI) it is a kind of Novel sewage to grow up on the basis of sewage rapid infiltration system (RI)
Biologic treating technique, principle are to add certain altitude in oozing pond soon to have the filler of certain penetrating power, are led in the starting period
Crossing the sewage of the appropriate concentration of dosing makes system biofilm, takes waterflooding and falls the dry method of operation alternateed, by physics, changes
It learns, the organic matter and suspended matter that the collective effect of biology effectively accumulates in decomposing system, is finally reached the purpose of purification sewage.
CRI systems are good to removal effects such as organic pollution, ammonia nitrogen, SS, and small with floor space, and operating cost is low, technique letter
The advantages that single, but it is relatively low to the removal efficiency of total nitrogen, and in order to improve the removal efficiency of total nitrogen, people are using filler in change system
Structure, water intake mode add water layer of satisfying, and additional carbon, the methods such as Prepositive denitrification device improve nitrogen removal rate, but effect is unknown
It is aobvious.
Short-cut nitrification and denitrification is a kind of novel denitrification process, realizes that short-cut nitrification and denitrification will be helpful to more in filter column
Increase effect, more energy-efficient denitrogenation, however realize that short distance nitration is the first step of short-cut nitrification and denitrification, is to realize nitrite nitrogen
Accumulation and the committed step finally denitrogenated.In the prior art due to realize short distance nitration during, due to be difficult to filter column carry out
The control of temperature, dissolved oxygen, therefore, entire short-cut nitrification and denitrification process are difficult to be realized in filter column.
Invention content
The present invention is directed to the prior art, a kind of device for realizing short distance nitration is provided, using artificial rapid infiltration system
As short-range nitrifying device, and inhibitor configured pool is set above, inhibitor solution is directly added into sewage, convenient for inhibiting
Agent is as sewage is added into device and is uniformly mixed.
The present invention is directed to the prior art, additionally provides a kind of method for realizing short distance nitration, manually can quickly ooze
Short distance nitration is realized in filter system, and material base and energy base are provided for subsequent denitrification denitrogenation or Anammox denitrogenation
Plinth reduces energy consumption, contributes to the progress of efficient denitrification to effectively save oxygen demand.
The present invention is achieved through the following technical solutions：A kind of device for realizing short distance nitration, including device body and setting
Artificial rapid infiltration system in device body, the artificial rapid infiltration system include filter column and are seated in filling out in filter column
Charge is provided with the water inlet pipe being connected with the filter column at the top of described device ontology, and described device ontology is from top to bottom
The multiple water outlet probe tubes being connected to the filter column are placed equidistant with, described device body bottom portion is provided with to be connected to the filter column
Outlet pipe, it is characterised in that：It is additionally provided with the inhibitor configured pool being connected to the water inlet pipe above described device ontology.
Inhibitor is then artificial fast with entering by water inlet pipe using inhibitor solution is configured in inhibitor configured pool
Artificial rapid infiltration system is added in the sewage of fast filtration system, and realizes the mixing of sewage and inhibitor solution simultaneously, makes its nothing
Addition and the mixed processes of inhibitor solution need in addition be increased, simplify short distance nitration step, efficiency is improved, reduce cost.
Further, the inhibitor configured pool include feeding controlling device, feed tank and setting below feed tank and
The charge pipe being connected to close to filter column one end with water inlet pipe is provided with and feeding controlling device electricity between the charge pipe and feed tank
The flow controller of road connection；Flow sensor, the flow sensor and feeding controlling device are provided on the water inlet pipe
Circuit connects.When sewage enters artificial rapid infiltration system by water inlet pipe, feeding controlling device collects flow sensor detection
To water inlet pipe in the discharge of sewage, by flow controller control inhibitor solution addition additive amount, reach needed for it is dense
Degree.
Further, it is provided with temperature control equipment between described device ontology and the artificial rapid infiltration system；Institute
It states and is additionally provided with temperature sensor and pH value detection device in filter column, the temperature sensor and the temperature control equipment circuit
Connection.The temperature control equipment is for controlling sewage temperature in filter column, and the temperature sensor is by collected sewage temperature
It is transferred to temperature control equipment, realizes real time monitoring and the adjusting of sewage temperature, it is made to keep temperature constant.
A method of it realizing short distance nitration, includes the following steps：
Step A：Biofilm processing：PH value is adjusted to 7.5 ~ 8.5 sewage to enter in filter column by water inlet pipe, using intermittence
The method of operation of water distribution carries out biofilm, until the removal rate of ammonia nitrogen and COD reach 85% or more, completes biofilm；
Step B：Short distance nitration：Potassium chlorate is added in inhibitor configured pool, and is dissolved in water into potassium chlorate solution, sewage is logical
Water inlet pipe is crossed to enter in filter column；Then solenoid valve is opened, is put into the sewage in potassium chlorate solution to filter column into water inlet pipe
A concentration of 5mmol/L of potassium chlorate, and intermittent water distribution is carried out, overboard phase and waterflooding phase time scale are 4:1, hydraulic detention time
1h。
Further, the temperature of sewage progress biofilm processing is in the step A：33.1-36 DEG C, pH 7.5-8.5.
Further, the temperature of sewage progress biofilm processing is in the step A：33.1-35.3 DEG C, pH 8.4.
Further, in the step A, pH value of sewage water is adjusted using sodium hydroxide solution, and the sodium hydroxide is molten
A concentration of 0.313 mol/L of liquid.
Compared with prior art, the present invention haing the following advantages and advantageous effect：
（1）A kind of device for realizing short distance nitration provided by the present invention is filled using artificial rapid infiltration system as short distance nitration
It sets, and inhibitor configured pool is set above, inhibitor solution is directly added into sewage, convenient for inhibitor as sewage is added
To in device and be uniformly mixed.
（2）It is provided by the present invention a kind of to realize that temperature is arranged in the device of short distance nitration below artificial rapid infiltration system
Control device in real time controls sewage temperature, makes the sewage constant temperature of carry out short distance nitration processing, improves short distance nitration effect
Rate.
（3）A kind of device for realizing short distance nitration provided by the present invention is added using feeding controlling device control inhibitor
Enter amount, make itself and the inflow synchronous adjustment in water inlet pipe, inflow variation in water inlet pipe is avoided to lead to inhibitor addition mistake
It is more or very few, it is unable to reach good inhibition.
（4）A kind of method for realizing short distance nitration provided by the present invention its can be realized in artificial rapid infiltration system
Short distance nitration provides material base and energy foundation for subsequent denitrification denitrogenation or Anammox denitrogenation, to effectively
Saved oxygen demand, reduce energy consumption, contribute to the progress of efficient denitrification.
Description of the drawings
Fig. 1 is the structural schematic diagram for the device that the present invention realizes short distance nitration；
Fig. 2 is CRI system ammonia nitrogen removal franks under different experimental conditions in test example of the present invention（%）And ammonia nitrogen influent concentration is at any time
The curve graph of variation；
Fig. 3 is that CRI system nitrate nitrogen influent concentrations and aqueous concentration become at any time under different experimental conditions in test example of the present invention
The curve graph of change；
Fig. 4 is that CRI systems are discharged nitrite nitrogen concentration and accumulation under experiment condition under different experimental conditions in test example of the present invention
Rate time history plot.
Wherein：2-device bodies, 11-water inlet pipes, 12-flow sensors, 13-water outlet probe tubes, 14-outlet pipes,
15-filter columns, 161-feed tanks, 162-feeding controlling devices, 163-flow controllers, 17-temperature control equipments,
171-temperature sensors.
Specific implementation mode
The present invention is described in further detail with reference to embodiment, embodiments of the present invention are not limited thereto.
Embodiment 1
A kind of device for realizing short distance nitration, as shown in Figure 1, including device body 1 and being arranged in device body 1 artificial fast
Fast filtration system, the artificial rapid infiltration system include filter column 15 and the filler material that is seated in filter column 15, described device sheet
The top of body 1 is provided with the water inlet pipe 11 being connected with the filter column 15, and described device ontology 1 has been placed equidistant with from top to bottom
Multiple water outlet probe tubes 13 for being connected to the filter column 15,1 bottom of described device ontology is provided with to be connected to the filter column 15
Outlet pipe 14.1 top of described device ontology is additionally provided with the inhibitor configured pool being connected to the water inlet pipe 11.
The filler uses the filler used in common artificial rapid infiltration system to configure, and the filler is preferably：90%
Natural river sand grain size 0.25-0.30mm, 5% marble sand 1-2mm, 5% zeolite sand 1.5-1.7mm compositions.
Inhibitor is then artificial with entering by water inlet pipe 11 using inhibitor solution is configured in inhibitor configured pool
Artificial rapid infiltration system is added in the sewage of rapid infiltration system, and realizes the mixing of sewage and inhibitor solution simultaneously, makes it
Without in addition increasing addition and the mixed processes of inhibitor solution, simplifies short distance nitration step, improve efficiency, reduce cost.
Embodiment 2
The present embodiment is improved on the basis of embodiment 1, is theed improvement is that：As shown in Fig. 2, the inhibitor is matched
Pond is set to include feeding controlling device 162, feed tank 161 and be arranged below feed tank 161 and with water inlet pipe 11 close to filter column 15
The charge pipe of one end connection, is provided with the stream being connect with 162 circuit of feeding controlling device between the charge pipe and feed tank 161
Amount controller 163；Flow sensor 12, the flow sensor 12 and feeding controlling device are provided on the water inlet pipe 11
162 circuits connect.When sewage enters artificial rapid infiltration system by water inlet pipe 11, feeding controlling device 162 is collected flow and is passed
The discharge of sewage in the water inlet pipe 11 that sensor 12 detects controls the additive amount of inhibitor solution addition by flow controller 163,
Reach required concentration.
Other parts are substantially the same manner as Example 1 in the present embodiment, therefore no longer repeat one by one.
Embodiment 3
The present embodiment is improved on the basis of embodiment 1 or 2, is theed improvement is that：Described device ontology 1 and described
Temperature control equipment 17 is provided between artificial rapid infiltration system；171 He of temperature sensor is additionally provided in the filter column 15
PH value detection device, the temperature sensor 171 are connect with 17 circuit of the temperature control equipment.The temperature control equipment 17
For controlling sewage temperature in filter column 15, collected sewage temperature is transferred to temperature control dress by the temperature sensor 171
17 are set, realizes real time monitoring and the adjusting of sewage temperature, it is made to keep temperature constant.
Other parts and embodiment 1 or 2 are essentially identical in the present embodiment, therefore no longer repeat one by one.
Embodiment 4
The present embodiment provides a kind of methods for realizing short distance nitration, pass through any device for realizing short distance nitration in embodiment 1 ~ 3
Come what is implemented, specific implementation is as follows：
Step A：Biofilm process：The temperature in device body 1 is adjusted at 34.2 DEG C by temperature control equipment 17, is passed through
The sodium hydroxide solution of 0.313mol/L will go into sewage pH in water inlet pipe 11 and adjust to 8.4, wait for that sewage passes through water inlet pipe 11
After entering in artificial rapid infiltration system filter column, that is, start biofilm；Biofilm process uses the method for operation of alternation of wetting and drying, waterpower
Load is 0.6m3/m2/ d is intake twice daily, hydraulic detention time 1.5h.Check primary water inlet within every two days during biofilm
Water quality index concentration, after operation in 50 days, when the removal rate for checking ammonia nitrogen and COD reaches 85% or more.
Step B：Short distance nitration：Shifted to an earlier date by inhibitor configured pool and carries out matching for potassium chlorate solution in inhibitor configured pool
It sets and adds potassium chlorate solution into artificial rapid infiltration system filter column, make a concentration of 5 mmol/L of the potassium chlorate in sewage
, progress short distance nitration reaction, two months by a definite date.
Embodiment 5
The present embodiment provides a kind of method for realizing short distance nitration, the methods of the realization short distance nitration provided with embodiment 4
It is roughly the same, the difference is that, the method provided in this embodiment for realizing short distance nitration temperature in biofilm is controlled 33.1
℃。
Embodiment 6
The present embodiment provides a kind of method for realizing short distance nitration, the methods of the realization short distance nitration provided with embodiment 4
It is roughly the same, the difference is that, the method provided in this embodiment for realizing short distance nitration temperature in biofilm is controlled 35.3
℃。
Embodiment 7
The present embodiment provides a kind of method for realizing short distance nitration, the methods of the realization short distance nitration provided with embodiment 4
It is roughly the same, the difference is that, the method provided in this embodiment for realizing short distance nitration pH in biofilm is controlled 7.5.
Embodiment 8
The present embodiment provides a kind of method for realizing short distance nitration, the methods of the realization short distance nitration provided with embodiment 4
It is roughly the same, the difference is that, the method provided in this embodiment for realizing short distance nitration pH in biofilm is controlled 8.5.
Test example
In order to prove that the embodiment of the present invention provides the advantageous effect for the method for realizing short distance nitration, used in test example of the present invention
The method for the realization short distance nitration that embodiment 1 provides and the device of realization short distance nitration have carried out experimental verification.It needs to illustrate
It is that in test example, design simulation column 1 is used as blank control group, does not add potassium chlorate；Simulation column 2 is short to be carried out in embodiment 1
Journey nitrifying process, a concentration of 5 mmol/L of addition of potassium chlorate；It simulates in column 3 as the comparative example of addition 3mmol/L potassium chlorate.Most
Eventually, test result is as shown in Figure 2, Figure 3 and Figure 4.
As shown in Fig. 2, influence of the addition of 3mmol/L simulation 3 potassium chlorate of column to ammonia nitrogen removal frank is smaller, ammonia nitrogen is average
The addition that removal rate simulates 2 potassium chlorate of column in 87% or more, 5mmol/L reduces removal rate of the CRI systems to ammonia nitrogen.Therefore, it ties
Fruit shows that the potassium chlorate that 5mmol/L is added in CRI systems can generate ammonia oxidation bacteria AOB certain inhibiting effect, but remains to
The removal rate of ammonia nitrogen is set to maintain 66% or more.
Further, as shown in figure 3, having added the simulation column 3 of 3mmol/L potassium chlorate and the simulation column 1 of potassium chlorate not being added
Averagely water outlet nitrate is that 36 mg/L are compared, and is testing 1-20 days early period, and nitrate decreases, but average
Aqueous concentration is still maintained at 34mg/L or so.But add the effluent nitrate-nitrogen concentration of the simulation column 2 of 5 mmol/L potassium chlorate
There is apparent reduction, the aqueous concentration that is averaged is only 7.4mg/L or so, compared with simulating column 3, has dropped about 78%.Cause
This, the results showed that, the addition of the potassium chlorate of 5 mmol/L is fairly obvious to the inhibition of the nitrite oxidizing bacteria in CRI systems,
This phenomenon is conducive to realize short distance nitration in the accumulation and CRI systems of nitrite.
Further, as shown in figure 4, be added 3mmol/L potassium chlorate to CRI systems press nitrate nitrogen accumulation have it is certain
Facilitation, but its average accumulation rate is only 3.43% or so, it is difficult to short distance nitration is realized in CRI systems, still, simulates column 2
After adding the potassium chlorate of 5mmol/L, there is apparent nitrite nitrogen accumulation, during experiment, be averaged nitrite nitrogen product
Tired rate has reached 59.8% or so, and at the 21st day, nitrite nitrogen accumulation rate was more than 80%.Therefore, the results showed that, 5mmol/L's
Potassium chlorate addition can realize short distance nitration in CRI systems.In general, it is that can be considered that nitrite nitrogen accumulation rate, which is more than 50%,
It realizes short distance nitration, and holding longer time can be stablized.
In conclusion the embodiment of the present invention by adding certain density potassium chlorate in the short distance nitration stage, keep its right
Nitrite oxidizing bacteria generates inhibiting effect, is subsequent anti-to promote the accumulation of nitrite nitrogen during short distance nitration
Nitrification denitrogenation or Anammox denitrogenation provide material base and energy foundation, to effectively save oxygen demand, reduce
Energy consumption, contributes to the progress of efficient denitrification；In addition, the device provided in an embodiment of the present invention for realizing short distance nitration, structure letter
It is single, it is easy to use and reliable, and by the way that potassium chlorate configured pool is arranged the method for above-mentioned realization short distance nitration is implemented more
The convenience that adds and efficiently.Therefore, provided in an embodiment of the present invention to realize that the method for short distance nitration and its device have important push away
Wide application value.
Embodiments described above is a part of the embodiment of the present invention, instead of all the embodiments.The reality of the present invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Claims (7)
1. a kind of device for realizing short distance nitration, including device body（1）With setting in device body（1）It is interior artificial quickly to ooze
Filter system, the artificial rapid infiltration system include filter column（15）Be seated in filter column（15）Interior filler material, described device sheet
Body（1）Top be provided with and the filter column（15）The water inlet pipe being connected（11）, described device ontology（1）From top to bottom etc.
Away from being provided with and the filter column（15）Multiple water outlet probe tubes of connection（13）, described device ontology（1）Bottom is provided with and institute
State filter column（15）The outlet pipe of connection（14）, it is characterised in that：Described device ontology（1）Top is additionally provided with and the water inlet pipe
（11）The inhibitor configured pool of connection.
2. a kind of device for realizing short distance nitration according to claim 1, it is characterised in that：The inhibitor configured pool packet
Include feeding controlling device（162）, feed tank（161）With setting in feed tank（161）Lower section and and water inlet pipe（11）Close to filter column
（15）The charge pipe of one end connection, the charge pipe and feed tank（161）Between be provided with and feeding controlling device（162）Circuit
The flow controller of connection（163）；The water inlet pipe（11）On be provided with flow sensor（12）, the flow sensor（12）
With feeding controlling device（162）Circuit connects.
3. a kind of device for realizing short distance nitration according to claim 1 or 2, it is characterised in that：Described device ontology（1）
It is provided with temperature control equipment between the artificial rapid infiltration system（17）；The filter column（15）Inside it is additionally provided with temperature biography
Sensor（171）With pH value detection device, the temperature sensor（171）With the temperature control equipment（17）Circuit connects.
4. according to a kind of method for realizing short distance nitration of claim 1 ~ 3 any one of them, it is characterised in that：Including following step
Suddenly：
Step A：Biofilm processing：The sewage that pH value is adjusted to 7.5 ~ 8.5 passes through water inlet pipe（11）Enter filter column（15）In, it adopts
Biofilm is carried out with the method for operation of intermittent water distribution, until the removal rate of ammonia nitrogen and COD reach 85% or more, completes biofilm；
Step B：Short distance nitration：Potassium chlorate is added in inhibitor configured pool, and is dissolved in water into potassium chlorate solution, sewage is logical
Cross water inlet pipe（11）Enter filter column（15）In；Then solenoid valve is opened, to water inlet pipe（11）Middle input potassium chlorate solution extremely filters
Column（15）In sewage in a concentration of 5mmol/L of potassium chlorate, and carry out intermittent water distribution, overboard phase and waterflooding phase time scale are
4:1, hydraulic detention time 1h.
5. a kind of method for realizing short distance nitration according to claim 4, it is characterised in that：In the step A sewage into
Row biofilm processing temperature be：33.1-36 DEG C, pH 7.5-8.5.
6. a kind of method for realizing short distance nitration according to claim 5, it is characterised in that：In the step A sewage into
Row biofilm processing temperature be：33.1-35.3 DEG C, pH 8.4.
7. a kind of method for realizing short distance nitration according to claim 4, it is characterised in that：In the step A, sewage pH
Value is adjusted using sodium hydroxide solution, a concentration of 0.313 mol/L of the sodium hydroxide solution.
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| CN201810444023.XA CN108773901A (en) | 2018-05-10 | 2018-05-10 | A kind of devices and methods therefor for realizing short distance nitration |
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| CN201810444023.XA CN108773901A (en) | 2018-05-10 | 2018-05-10 | A kind of devices and methods therefor for realizing short distance nitration |
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| KR20170009156A (en) * | 2015-07-15 | 2017-01-25 | 공주대학교 산학협력단 | Nitrogen removing method of side stream comprising high concentrated nitrogen |
| CN206666225U (en) * | 2017-03-14 | 2017-11-24 | 深圳市水务(集团)有限公司 | Ammonia nitrogen waste water short distance nitration Anammox processing unit based on monitoring water quality |
| CN207330458U (en) * | 2017-09-04 | 2018-05-08 | 东莞市东江水务有限公司 | A kind of throwing device applied to filter back washing disinfectant |
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