CN106116058A - A kind of aerosol dispersion processes the method and device of ammonia nitrogen waste water - Google Patents
A kind of aerosol dispersion processes the method and device of ammonia nitrogen waste water Download PDFInfo
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- CN106116058A CN106116058A CN201610696334.6A CN201610696334A CN106116058A CN 106116058 A CN106116058 A CN 106116058A CN 201610696334 A CN201610696334 A CN 201610696334A CN 106116058 A CN106116058 A CN 106116058A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 41
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 230000008569 process Effects 0.000 title claims abstract description 28
- 239000000443 aerosol Substances 0.000 title claims abstract description 14
- 239000006185 dispersion Substances 0.000 title claims abstract description 14
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 34
- 238000000889 atomisation Methods 0.000 claims abstract description 25
- 239000007791 liquid phase Substances 0.000 claims abstract description 25
- 238000000926 separation method Methods 0.000 claims abstract description 25
- 239000003595 mist Substances 0.000 claims abstract description 12
- 238000004821 distillation Methods 0.000 claims abstract description 8
- 239000012071 phase Substances 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 239000002253 acid Substances 0.000 claims abstract description 6
- 238000011084 recovery Methods 0.000 claims abstract description 6
- 230000005484 gravity Effects 0.000 claims abstract description 5
- 239000000618 nitrogen fertilizer Substances 0.000 claims abstract description 5
- 238000001556 precipitation Methods 0.000 claims abstract description 5
- 239000003002 pH adjusting agent Substances 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 8
- 239000006199 nebulizer Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000002604 ultrasonography Methods 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 4
- 230000001186 cumulative effect Effects 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 230000026683 transduction Effects 0.000 claims description 2
- 238000010361 transduction Methods 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims 1
- 208000028659 discharge Diseases 0.000 description 12
- 230000008859 change Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009615 deamination Effects 0.000 description 1
- 238000006481 deamination reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Physical Water Treatments (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of method that aerosol dispersion processes ammonia nitrogen waste water, comprise the following steps: A. pretreatment: high-concentration ammonia nitrogenous wastewater is carried out homogenizing process, then carry out precipitation and filter, remove the float in waste water.B.pH regulates: the waste water of preprocessed mistake is sent into regulating reservoir, uses pH adjusting agent that the pH of waste water is adjusted to 9 14.C. atomization: the waste water in regulating reservoir is introduced atomising device, obtains mist phase and liquid phase after atomization, and liquid phase is entered in biochemistry pool.D. gas-liquid separation: send in gas-liquid separation device, under gravity, it is achieved ammonia separates voluntarily with liquid phase after mutually heated for the mist of atomising device output/isothermal holding.E. Ammonia recovery: enter in biochemistry pool by the liquid phase obtained in gas-liquid separation device, is passed through retracting device mutually simultaneously by ammonia, utilizes diluted acid ammonia to be absorbed mutually and is absorbed liquid.F. distillation: absorbing liquid, after distillation and concentration, can use as nitrogenous fertilizer series products.
Description
Technical field
The present invention relates to environmental pollution water treatment field, especially relate to a kind of method that aerosol dispersion processes ammonia nitrogen waste water
And device.
Background technology
Growth, consequent high concentration is developed rapidly along with industries such as chemical fertilizer, petrochemical industry, coking, livestock and poultry cultivations
Ammonia nitrogen waste water also becomes one of factor limiting industry development.Ammonia nitrogen waste water enter water body not only can cause body eutrophication,
Cause black and odorous water, and crowd and biology also can be produced toxic action.Therefore, ammonia nitrogen concentration in waste discharge is had by country
(GB8978-2015 " integrated wastewater discharge standard " regulation first discharge standard is that ammonia nitrogen concentration is less than for strict regulation and restriction
8mg/L, secondary discharge standard is that ammonia nitrogen concentration is less than 25mg/L).
For high-concentration ammonia nitrogenous wastewater, the most ripe process technique is to use stripping or stripping process.
Stripping is that the waste water using and adjusting acid-base value at high temperature carries out mass-and heat-transfer with steam, thus realizes ammonia nitrogen
The purpose separated from waste water.Processing waste water per ton and need 200-300kg steam consumption quantity, energy consumption is higher, thus hinders
Its popularization and application.
Stripping is using air as carrier, is passed through in pending waste water by air, makes gas-liquid mutually be fully contacted, make in water
The free ammonia dissolved, through gas-liquid interface, shifts to gas phase, thus reaches the purpose of removal of ammonia and nitrogen.Though the stripping efficiency energy of ammonia nitrogen
Reach 85-90%, but with in the treatment of waste water, water outlet is but difficult to reach discharging standards.Be especially applicable to low concentration (<
When 400mg/L) ammonia nitrogen waste water processes, its stripping efficiency is substantially reduced.
Although and the investment of the continuous chemical sedimentation method and floor space are all little than bioanalysis, but reagent consumption amount is big, process medicine
Agent cost is high, easily causes secondary pollution, and effluent quality is also difficult to reach country-level or secondary discharge standard.
Summary of the invention
For solving deficiency of the prior art, it is an object of the invention to provide that a kind of energy consumption is low, ammonia nitrogen organic efficiency high, be subject to
The aerosol dispersion that ambient temperature effect is little processes the method and device of ammonia nitrogen waste water, it is intended to solve at existing high-concentration ammonia nitrogenous wastewater
Reason technology, the easy fouling of stripping tower, strip big shortcoming influenced by ambient temperature.
For achieving the above object, the technical scheme is that a kind of method that aerosol dispersion processes ammonia nitrogen waste water, including
Following steps:
A. pretreatment: high-concentration ammonia nitrogenous wastewater carries out homogenizing process, then carries out precipitation and filters, and removes hanging in waste water
Float.
B.pH regulates: the waste water of preprocessed mistake is sent into regulating reservoir, uses pH adjusting agent that the pH of waste water is adjusted to 9-14.
C. atomization: the waste water in regulating reservoir is introduced atomising device, obtains mist phase and liquid phase after atomization, and liquid phase is entered
In biochemistry pool.
D. gas-liquid separation: send in gas-liquid separation device after mutually heated for the mist of atomising device output/isothermal holding,
Under action of gravity, it is achieved ammonia separates voluntarily with liquid phase.
E. Ammonia recovery: the liquid phase obtained in gas-liquid separation device is entered in biochemistry pool, ammonia is passed through mutually simultaneously
Retracting device, utilizes diluted acid ammonia to be absorbed mutually and is absorbed liquid.
F. distillation: absorbing liquid, after distillation and concentration, can use as nitrogenous fertilizer series products.
Further, described mist mutually in the concentration of ammonia refer to the comprehensive of free ammonia and ammonium ion.
A kind of aerosol dispersion processes the device of ammonia nitrogen waste water, including atomising device, heating and heat-insulating device, gas-liquid separation device
And retracting device, if being separated to form dried layer atomizing layer by some pieces of gripper shoes in described atomising device, it is provided with in atomizing layer
Inhalant region, exhalant region and some ranges of atomization；Being provided with fog output tube in described atomising device, every layer of fog output tube is opened at certain altitude
There are some fog-entering holes, depending on the position of fog-entering hole is by the atomization height of range of atomization；Under the exhalant region correspondence connection of upper strata atomizing layer
The inhalant region of layer atomizing layer；Being provided with cascade in described inhalant region, exhalant region bottom surface has some apopores, is provided with in range of atomization
Nebulizer, described nebulizer can be ultrasound atomizer or high-pressure atomizer；It is provided with baffle plate between described inhalant region and exhalant region,
Between inhalant region with range of atomization, between adjacent range of atomization, between range of atomization and exhalant region, it is equipped with overflow plate；Described fog output tube
Bottom is provided with discharge outlet, and fog output tube end is equipped with air-introduced machine and successively connects heating and heat-insulating device and gas-liquid separation device, gas-liquid
Air-introduced machine is installed between segregation apparatus and retracting device.
Further, the height of described overflow plate is ladder distribution.
As preferably, described ultrasound atomizer is made up of with cumulative atomizer ultrasonic transduction sheet.
Further, described atomising device is arranged over water inlet pipe, is provided with outlet pipe and leg, enters bottom atomising device
Water pipe connects with the inhalant region of ground floor atomizing layer, and outlet pipe connects with the exhalant region of the atomizing layer of the bottom.
Further, it is divided into some intervals by some dividing plates in described gas-liquid separation device, sets bottom gas-liquid separation device
Having fluid collection device, described gas-liquid separation device import department is equipped with air-introduced machine.
Beneficial effects of the present invention: in the process technique of (1) present invention, uses ultrasonic or high-pressure atomizing device to high concentration
Ammonia nitrogen waste water is atomized, and forms micron order droplet, considerably increases the specific surface area of drop, is greatly enhanced in waste water free
Speed that ammonia escapes from liquid phase and efficiency；On the other hand due to ultrasound cavitation effect, mechanical effect and heat effect, at ultrasound wave
Effect under, ammonia nitrogen waste water temperature can raise, and gravitation between fluid molecule reduces, the viscosity of liquid and surface tension also with
Reduction, beneficially free ammonia is separated from liquid phase.
(2) assembly of the invention use void tower spraying, eliminate filler, effectively prevent due to filler harden, aging and
The channel produced and dead band, and the obstructing problem to pipeline, solve tower scale problems in conventional stripping deamination technique,
Reduce equipment operating load, also reduce equipment volume simultaneously, reduce construction input cost.
(3) assembly of the invention uses ultrasonic atomizatio or high-pressure atomization, arranges heating/attemperator after atomising device, protects
Demonstrate,prove the concentration of free ammonia not variation with temperature of effusion and change, solve conventional stripping process treatment effeciency by ambient temperature shadow
Ringing big shortcoming, equipment atomizing effect is stable, ammonia nitrogen removal stabilised efficiency.
(4) present invention uses the absorbing liquids such as diluted acid to carrying out mutually containing ammonia absorbing reuse, creates warp realizing resource regeneration
While Ji is worth, effectively prevent secondary pollution.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of the present invention.
Fig. 2 is the structural representation of the present invention.
Fig. 3 is the profile of the A-A of the atomising device of the present invention.
Fig. 4 is the profile of the B-B of the atomising device of the present invention.
Detailed description of the invention
Embodiment 1, as it is shown in figure 1,
The waste water that ammonia nitrogen concentration is 2000mg/L is carried out homogenizing process, then carries out precipitation and filter, remove in waste water outstanding
Float, sends the waste water of preprocessed mistake into pH regulator pond, uses sodium hydroxide the pH of waste water to be adjusted to alkalescence, by regulating reservoir
Waste water introduce atomising device, control waste water flow velocity to control its time of staying in atomising device, reaction 40min after record
The ammonia nitrogen concentration of outlet liquid phase is 12.69mg/L, has reached the secondary discharge standard of national regulation, and liquid phase is entered life
Change in pond, is sent into after the mutually warm process of mist that atomising device is exported in gas-liquid separation device, under gravity, it is achieved ammonia
Gas phase separates voluntarily with liquid phase, and after gas-liquid separation, the ammonia nitrogen concentration of gained liquid phase is at 10-30mg/L, discharges it into biochemistry pool,
After biochemical treatment, reach discharging standards, ammonia is passed through mutually recovery unit simultaneously, utilizes diluted acid that ammonia is inhaled mutually
Receiving and be absorbed liquid, N is main presented in ammonium salt in absorbing liquid, can make as nitrogenous fertilizer series products after distillation and concentration
With.
Embodiment 2, as it is shown in figure 1,
The waste water that ammonia nitrogen concentration is 5000mg/L is carried out homogenizing process, then carries out precipitation and filter, remove in waste water outstanding
Float, sends the waste water of preprocessed mistake into pH regulator pond, uses calcium hydroxide the pH of waste water to be adjusted to alkalescence, by regulating reservoir
Waste water introduce atomising device, control waste water flow velocity to control its time of staying in atomising device, reaction 60min after record
The ammonia nitrogen concentration of outlet liquid phase is 14.81mg/L, has reached the secondary discharge standard of national regulation, and liquid phase is entered life
Change in pond, is sent into after the mutually warm process of mist that atomising device is exported in gas-liquid separation device, under gravity, it is achieved ammonia
Gas phase separates voluntarily with liquid phase, and after gas-liquid separation, the ammonia nitrogen concentration of gained liquid phase is at 10-30mg/L, discharges it into biochemistry pool,
After biochemical treatment, reach discharging standards, ammonia is passed through mutually recovery unit simultaneously, utilizes diluted acid that ammonia is inhaled mutually
Receiving and be absorbed liquid, N is main presented in ammonium salt in absorbing liquid, can make as nitrogenous fertilizer series products after distillation and concentration
With.
As shown in Figure 2,3, 4,
Include inhalant region, range of atomization and exhalant region in the atomizing layer of the present invention, waste water successively through inhalant region, range of atomization with
Exhalant region.Waste water enters the inhalant region of ground floor atomizing layer by elevator pump from water inlet pipe 4, and cascade 2 can effectively cut water column shape
Alleviate water flow impact pressure while becoming water smoke, effectively facilitate waste water atomization；Water smoke is proceeding through in range of atomization subsequently, at nebulizer
Under the effect of 19, form micron order droplet, considerably increase the specific surface area of drop, beneficially free ammonia and ammonium ion from liquid phase
In separate, concurrently form mist phase, mist is entered fog output tube 5 by the fog-entering hole 7 of this layer under the effect of air-introduced machine 6 subsequently,
Heated attemperator 7 enters gas-liquid separation device 9, it is ensured that the concentration of free ammonia of effusion not variation with temperature and change, gas
Retracting device 11 is entered mutually by air-introduced machine 6.Liquid phase in gas-liquid separation device 9 through fluid collection device 12 collect after from water outlet
Pipe 10 enters biochemistry pool, and waste water, after biochemistry pool processes, can reach national grade one discharge standard.Set bottom described fog output tube 5
There is discharge outlet 16, when accumulation of fluid is to specific level in fog output tube 5, conveniently empty.And the liquid phase in atomising device 3 continues
The inhalant region of lower floor atomizing layer, the most repeatedly, after atomization layer by layer, the free ammonia in waste water and ammonium is flowed into through the exhalant region of this layer
Ion is separated substantially.Subsequently, waste water enters biochemistry pool from the exhalant region of last layer of atomizing layer through outlet pipe 15.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent or the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (7)
1. the method that an aerosol dispersion processes ammonia nitrogen waste water, it is characterised in that comprise the following steps:
A. pretreatment: high-concentration ammonia nitrogenous wastewater carries out homogenizing process, then carries out precipitation and filters, remove the suspension in waste water
Thing.
B.pH regulates: the waste water of preprocessed mistake is sent into regulating reservoir, uses pH adjusting agent that the pH of waste water is adjusted to 9-14.
C. atomization: the waste water in regulating reservoir is introduced atomising device, obtains mist phase and liquid phase after atomization, and liquid phase is entered biochemistry
In pond.
D. gas-liquid separation: send in gas-liquid separation device, at gravity after mutually heated for the mist of atomising device output/isothermal holding
Under effect, it is achieved ammonia separates voluntarily with liquid phase.
E. Ammonia recovery: enter in biochemistry pool by the liquid phase obtained in gas-liquid separation device, is passed through recovery mutually simultaneously by ammonia
Device, utilizes diluted acid ammonia to be absorbed mutually and is absorbed liquid.
F. distillation: absorbing liquid, after distillation and concentration, can use as nitrogenous fertilizer series products.
A kind of aerosol dispersion the most according to claim 1 processes the method for ammonia nitrogen waste water, it is characterised in that described mist phase
The concentration of middle ammonia refers to the comprehensive of free ammonia and ammonium ion.
3. aerosol dispersion processes a device for ammonia nitrogen waste water, including atomising device (3), heating and heat-insulating device (8), gas-liquid separation
Device (9) and retracting device (11), it is characterised in that separated by some pieces of gripper shoes (13) in described atomising device (3)
If forming dried layer atomizing layer, in atomizing layer, it is provided with inhalant region, exhalant region and some ranges of atomization；Peace in described atomising device (3)
Equipped with fog output tube (5), every layer of fog output tube (5) has some fog-entering holes (7) at certain altitude, and the position of fog-entering hole (7) is by being atomized
Depending on the atomization height in district；The exhalant region correspondence of upper strata atomizing layer connects the inhalant region of lower floor's atomizing layer；Set in described inhalant region
Having cascade (2), exhalant region bottom surface has some apopores (17), is provided with nebulizer (19), described nebulizer in range of atomization
Can be ultrasound atomizer or high-pressure atomizer；Baffle plate (18), inhalant region and range of atomization it is provided with between described inhalant region and exhalant region
Between, be equipped with overflow plate (14) between adjacent range of atomization, between range of atomization and exhalant region；Described fog output tube (5) bottom sets
Having discharge outlet (16), fog output tube (5) end is equipped with air-introduced machine (6) and successively connects heating and heat-insulating device (8) and gas-liquid separation dress
Put (9), air-introduced machine (6) is installed between gas-liquid separation device (9) and retracting device (11).
A kind of aerosol dispersion the most according to claim 1 processes the device of ammonia nitrogen waste water, it is characterised in that described overflow
The height of plate (14) is ladder distribution.
A kind of aerosol dispersion the most according to claim 1 processes the device of ammonia nitrogen waste water, it is characterised in that described is ultrasonic
Nebulizer is made up of with cumulative atomizer ultrasonic transduction sheet.
A kind of aerosol dispersion the most according to claim 1 processes the device of ammonia nitrogen waste water, it is characterised in that described atomization
Device (3) is arranged over water inlet pipe (4), and atomising device (3) bottom is provided with outlet pipe (15) and leg (1), water inlet pipe (4) and the
The inhalant region connection of one layer of atomizing layer, outlet pipe (15) connects with the exhalant region of the atomizing layer of the bottom.
A kind of aerosol dispersion the most according to claim 1 processes the device of ammonia nitrogen waste water, it is characterised in that described gas-liquid is divided
Being divided into some intervals by some dividing plates in device (9), gas-liquid separation device (9) bottom is provided with fluid collection device (12), institute
State gas-liquid separation device (9) import department equipped with air-introduced machine (6).
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| CN201610696334.6A CN106116058A (en) | 2016-08-19 | 2016-08-19 | A kind of aerosol dispersion processes the method and device of ammonia nitrogen waste water |
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| CN201610696334.6A CN106116058A (en) | 2016-08-19 | 2016-08-19 | A kind of aerosol dispersion processes the method and device of ammonia nitrogen waste water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045045A (en) * | 2021-03-26 | 2021-06-29 | 长春黄金研究院有限公司 | Complete device and method for treating acidified cyanide-containing wastewater by using atomized gas normal-temperature condensation method |
| CN114735748A (en) * | 2022-04-28 | 2022-07-12 | 龙佰集团股份有限公司 | Method for washing titanium dioxide by using high ammonia nitrogen wastewater |
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| US20080152571A1 (en) * | 2005-11-11 | 2008-06-26 | Hu Zhibin | Method for removing ammonia nitrogen from solutions |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20080152571A1 (en) * | 2005-11-11 | 2008-06-26 | Hu Zhibin | Method for removing ammonia nitrogen from solutions |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045045A (en) * | 2021-03-26 | 2021-06-29 | 长春黄金研究院有限公司 | Complete device and method for treating acidified cyanide-containing wastewater by using atomized gas normal-temperature condensation method |
| CN114735748A (en) * | 2022-04-28 | 2022-07-12 | 龙佰集团股份有限公司 | Method for washing titanium dioxide by using high ammonia nitrogen wastewater |
| CN114735748B (en) * | 2022-04-28 | 2023-10-13 | 龙佰集团股份有限公司 | Method for washing titanium white by using high ammonia nitrogen wastewater |
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Application publication date: 20161116 |