CN108793581A - A kind of high-concentration ammonia nitrogenous wastewater bioremediation - Google Patents
A kind of high-concentration ammonia nitrogenous wastewater bioremediation Download PDFInfo
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
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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
- C02F7/00—Aeration of stretches of water
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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 high-concentration ammonia nitrogenous wastewater bioremediations, and ammonia nitrogen is digested and denitrification is integrated into a reactor, by controlling aeration quantity and mixed liquor upstream speed, realize half digestion of ammonia nitrogen and Anammox and remove the ammonia nitrogen in sewage.The more traditional nitrification/denitrification process of the present invention, can reduce power consumption 50%, and 50% or more is reduced due to that need not add carbon source, 70% or more integrated operation cost reduction, while construction land.
Description
Technical field
The invention belongs to technical field of sewage, and in particular to a kind of high-concentration ammonia nitrogenous wastewater bioremediation.
Background technology
The improvement up to standard that COD is discharged during China's urban water pollution is administered at this stage reaches ammonia nitrogen up to 80% or so
Mark improvement is also very low, especially the high-concentration ammonia nitrogenous wastewaters such as cultivation and landfill leachate, and the waste component is complicated, and strong toxicity is right
Environmental hazard is big, and intractability is big.In recent years, we are national at the biology of ammonia nitrogen waste water, particularly high-concentration ammonia nitrogenous wastewater
Technical aspect is managed, continuous progress is achieved.But A/O, A2/O, A/O2 are mostly used, the traditional handicrafts such as SBR and modified technique,
Conventional processes long flow path, biochemical oxygen consumption is in 4.6kg O2/kg N2 or so, and some also needs to supplement a large amount of carbon sources, because herein
It is high to manage cost.
There is existing main problem when traditional biological denitrification process processing high ammonia-nitrogen wastewater：
(1) oxygen demand is big, and capital expenditure and oxygen supply power cost are high；
(2) for the high ammonia-nitrogen wastewater of buffer capacity force difference, it is also necessary to increase sewage basicity to maintain the pH needed for denitrification；
(3) free ammonia of waste water can generate inhibiting effect to the activity of microorganism, to influence the decontamination effect of whole system
Fruit；
(4) carbon source may be required supplementation with to meet denitrification requirement, cause processing cost higher.
Invention content
It is an object of the invention to overcome prior art defect, a kind of high-concentration ammonia nitrogenous wastewater bioremediation is provided.
Technical scheme is as follows：
A kind of high-concentration ammonia nitrogenous wastewater bioremediation, includes the following steps：
(1) the ammonia nitrogen waste water raw water by ammonia-nitrogen content more than 300mg/l is sent into ammonia nitrogen waste water regulating reservoir, carries out water quality water
Amount is adjusted；
(2) material obtained by step (1) is sent into neutralization pond, adjusts pH to 6.5~7.0；
(3) material obtained by step (2) is sent into half digestion ammoxidation reaction device and is handled, it should half digestion ammonia oxygen
It includes a reaction tank, a water inlet mixing pit and one first frequency conversion air blower to change reaction unit；
Reaction tank, in liquid in contain granule sludge, be located at liquid level under from bottom to up be equipped with a micro-pore aeration mechanism,
One water inlet distributor, a reflux water distributor and several three phase separators, and at least exhaust pipe for stretching out liquid level, micropore
It is aerated mechanism and water inlet distributor is set to the bottom of reaction tank, reflux water distributor and several three phase separators are set in reaction tank
Portion is half digestion ammoxidation reaction area between water inlet distributor and reflux water distributor, several three phase separators by gas collecting tube with
An at least exhaust pipe is connected to, and several catch basins are equipped with above several three phase separators, and a drainpipe is connected to several catch basins；
Water inlet mixing pit, upper part are connected to above-mentioned reflux water distributor by a return duct, and bottom is connected by a water inlet pipe
Lead to above-mentioned water inlet distributor, which is equipped with an intake pump, and the water outlet of the intake pump is equipped with water inlet control valve；
First frequency conversion air blower is connected to above-mentioned micro-pore aeration mechanism；
The step is specially：The material obtained by step (2) is first sent into water inlet mixing pit, in water inlet mixing pit and wherein
Material mixing after form combined sewage；It is promoted through intake pump and water inlet distributor is entered by water inlet pipe, it is ammonia to enter water
The sum of nitrogen waste water raw water amount and backflow water yield, backflow water yield according in ammonia-nitrogen content and reaction tank upper speed determine, and
It is controlled by water inlet control valve, mixing is contacted with the micro-bubble that micro-pore aeration mechanism discharges into the combined sewage in reaction tank
Half digestion ammoxidation reaction area of flow direction, the aeration quantity of micro-pore aeration mechanism pass through frequency conversion air compressor control；In half digestion ammoxidation
The molecular oxygen of reaction zone dissolving is utilized by the nitrifier on the surface layer of granule sludge, has been reacted with the ammonia nitrogen for being adsorbed onto nitrifier surface
At half digestion process, the sewage through half digestion is obtained；Sewage continuation through half digestion contacts with granule sludge and penetrates into particle
The internal layer of sludge completes anti-nitration reaction with anaerobic ammonia oxidizing bacteria, and ammonia nitrogen is made to be oxidized to nitrogen, undissolved oxygen bubbles and nitrogen
The nitrogen bubble and carbon dioxide that bubble, Anammox generate by three phase separator detach and pass through gas collecting tube and exhaust
Pipe is discharged, and granule sludge flows back to half digestion ammoxidation reaction area, and the first supernatant of gained is discharged anti-by catch basin and drainpipe
It answers pond and enters a heavy pond；Under the effect of gravity, recirculation water is collected by the water distributor that flows back and is back into water mixing pit；
(4) material in a heavy pond is obtained into the second supernatant and the first precipitating sludge through precipitation, by second supernatant
It is sent into mixed aeration pond, by carrying out Air Exposure in jet mixing aerator therein, the first precipitating sludge returns above-mentioned
Water inlet mixing pit；
(5) water outlet in mixed aeration pond obtains third supernatant after draining into secondary settling tank through mud-water separation and the second precipitation is dirty
Mud is discharged into discharge pond, ammonia nitrogen waste water raw water after the COD of the third supernatant is down to 60mg/l hereinafter, ammonia nitrogen is down to 5mg/l
0.5~1 times of the second precipitating sludge of quality be then back to mixed aeration pond；
(6) material parts in pond are discharged and are back to the basicity and carbon for being used for adjusting above-mentioned combined sewage into water mixing pit
Nitrogen ratio, the amount to flow back in the step are 1-2 times of the volume of ammonia nitrogen waste water raw water, remaining is delivered to discharge pipe network and discharges or into one
Walk treatment for reuse.
In a preferred embodiment of the invention, the step (2) is：During material obtained by step (1) is sent into
In pond, pH is adjusted by way of adding sodium hydroxide or sulfuric acid to 6.5~7.0.
In a preferred embodiment of the invention, the micro-pore aeration mechanism includes at least one aeration air inlet pipe and sets
Several micro-hole aerators in at least one aeration air inlet pipe.
In a preferred embodiment of the invention, the dissolved oxygen concentration in half digestion ammoxidation reaction area is 0.2
~0.8mg/l.
In a preferred embodiment of the invention, the backflow water yield of the reflux water distributor is ammonia nitrogen waste water raw water
1~5 times of volume.
In a preferred embodiment of the invention, the jet mixing aerator include a mixed liquor distribution cavity and
One air distribution chamber, air distribution chamber are covered in outside mixed liquor distribution cavity；The lower end of mixed liquor distribution cavity has a mixture pump
Enter pipe, the upper end of air distribution chamber has an air intake pipe；Mixed liquor distribution cavity has to be spacedly distributed in the middle part of its cavity wall
And be connected to several jet nozzles of mixed liquor distribution cavity and air distribution chamber, the injection directions of several jet nozzles downwards with
Level be in 0~45 degree angle, air distribution chamber have connection air distribution chamber and outside and it is concentric with above-mentioned several jet nozzles
Corresponding several mixed spray tubes；Have between above-mentioned several jet nozzles and several mixed spray tubes and is connected to air distribution chamber
Air sucks gap；Second supernatant is delivered to the mixed liquor distribution cavity.
It is further preferred that the number of the jet nozzle is 3~20.
It is further preferred that the air intake pipe is connected to one second frequency conversion air blower.
The beneficial effects of the invention are as follows：The more traditional nitrification/denitrification process of the present invention, can reduce power consumption 50%,
50% or more is reduced since carbon source, 70% or more integrated operation cost reduction, while construction land need not be added.
Description of the drawings
Fig. 1 is the structural schematic diagram of half digestion ammoxidation reaction device in the present invention.
Fig. 2 is the structure sectional view of the jet mixing aerator in the present invention.
Specific implementation mode
Technical scheme of the present invention is further detailed and is described below by way of specific implementation mode combination attached drawing.
A kind of high-concentration ammonia nitrogenous wastewater bioremediation, includes the following steps：
(1) the ammonia nitrogen waste water raw water by ammonia-nitrogen content more than 300mg/l is sent into ammonia nitrogen waste water regulating reservoir, carries out water quality water
Amount is adjusted；
(2) material obtained by step (1) is sent into neutralization pond, is adjusted by way of adding sodium hydroxide or sulfuric acid
PH to 6.5~7.0；
(3) material obtained by step (2) is sent into half digestion ammoxidation reaction device and is handled, as shown in Figure 1, should
Half digestion ammoxidation reaction device includes a reaction tank 1, one water inlet mixing pit 2 and one first frequency conversion air blower 3.
Reaction tank 1, in liquid in contain granule sludge, be located at liquid level under from bottom to up be equipped with a micro-pore aeration mechanism
11, a water inlet distributor 12, one reflux water distributor 13 and several three phase separators 14, and at least row for stretching out liquid level
Tracheae 15, micro-pore aeration mechanism 11 and water inlet distributor 12 are set to the bottom of reaction tank 1, and flow back water distributor 13 and several three-phase separates
It is half digestion ammoxidation reaction area 16 between water inlet distributor 12 and reflux water distributor 13 from the middle part that device 14 is set to reaction tank 1,
Several three phase separators 14 are connected to by gas collecting tube 140 with an at least exhaust pipe 15, if 14 top of several three phase separators is equipped with
Dry catch basin 141, a drainpipe 16 are connected to several catch basins 141；Above-mentioned micro-pore aeration mechanism 11 including at least one be aerated into
Tracheae 110 and several micro-hole aerators 111 in at least one aeration air inlet pipe 110；
Water inlet mixing pit 2, is connected to external ammonia nitrogen waste water, and above-mentioned reflux water distributor 13 passes through a return duct 20 and is connected to water inlet
The bottom on the top of mixing pit 2, water inlet mixing pit 2 is connected to above-mentioned water inlet distributor 12 by a water inlet pipe 21, the water inlet pipe 21
It is equipped with an intake pump 210, the water outlet of the intake pump 210 is equipped with water inlet control valve 211；Above-mentioned return duct 20 is equipped with one
Recycle control valve 201 is to control the backflow water yield of the reflux water distributor 13.
First frequency conversion air blower 3 is connected to above-mentioned micro-pore aeration mechanism 11.
Preferably, the reflux water distributor 13 is set to 500~1000mm of the lower section of the three phase separator 14.
Preferably, the shape of the reaction tank 1 is that class is cylindrical, cuboid or cube shaped, and material is carbon steel, no
Become rusty steel or armored concrete.The water inlet distributor 12 is perforated tube, material HDPE.The reflux water distributor 13 is to wear
Hole tubular type, material HDPE.The material of the three phase separator 14 is PP, glass steel or stainless steel, the three phase separator 14
The three phase separator 14 of UASB, including upper layer and lower layer gas gathering mask are handled similar to anerobic sowage, are advised according to the design of reaction unit
Mould can be arranged multigroup, and every group is equipped with gas collecting tube 140, and gas collecting tube 140 is connect with exhaust pipe 15；
The step is specially：The material obtained by step (2) is first sent into water inlet mixing pit 2, in water inlet mixing pit 2 and is come
Combined sewage is formed after water inlet mixing pit 2 mixes from the recirculation water of reflux water distributor 13, passes through water inlet through the promotion of intake pump 210
Pipe 21 enters water inlet distributor 12, is the sum of ammonia nitrogen waste water raw water amount and backflow water yield into water, backflow water yield is according to ammonia nitrogen
Upper speed in content and reaction tank 1 determines, and is controlled by water inlet control valve 211, dirty into the mixing in reaction tank 1
Water contacts half digestion ammoxidation reaction area 16 of mixing flow direction, micro-pore aeration mechanism with the micro-bubble that micro-pore aeration mechanism 11 discharges
11 aeration quantity is controlled by frequency conversion air blower 3；In half digestion ammoxidation reaction area, the molecular oxygen of 16 dissolving is by granule sludge
The nitrifier on surface layer utilizes, and is reacted with the ammonia nitrogen for being adsorbed onto nitrifier surface and completes half digestion process, obtains the dirt through half digestion
Water；Sewage through half digestion continues that the internal layer of granule sludge is contacted and penetrated into granule sludge and anaerobic ammonia oxidizing bacteria completion is anti-
Nitration reaction makes ammonia nitrogen be oxidized to nitrogen, the nitrogen bubble and two that undissolved oxygen bubbles and nitrogen bubble, Anammox generate
Carbonoxide carries out separation by three phase separator 14 and is discharged by gas collecting tube 140 and exhaust pipe 15, and granule sludge, which flows back to, partly to disappear
Change ammoxidation reaction area 16, supernatant is discharged reaction tank 1 by catch basin 141 and drainpipe 16 and enters subsequent processing facility；
Under the effect of gravity, recirculation water is collected by the water distributor 13 that flows back and is back into water by the control of recycle control valve 201 and mixed
In pond 2.Preferably, for the upper speed general control of liquid in 3-4m/h, half digests 16 middle part of ammoxidation reaction area in reaction tank 1
The dissolved oxygen of liquid is controlled in 0.5-1.0mg/1.
(4) material in a heavy pond is obtained into the second supernatant and the first precipitating sludge through precipitation, by second supernatant
It is sent into mixed aeration pond, by carrying out Air Exposure in jet mixing aerator 4 therein, the first precipitating sludge returns above-mentioned
Water inlet mixing pit；As shown in Fig. 2, above-mentioned jet mixing aerator 4, including a mixed liquor distribution cavity 41 and an air distribution chamber
42, air distribution chamber 42 is covered in outside mixed liquor distribution cavity 41.
There is a mixed liquor to be pumped into pipe 410 for the lower end of mixed liquor distribution cavity 41, and the upper end of air distribution chamber 42 has one to connect
The air intake pipe 420 of logical second frequency conversion air blower (not shown), the lower end that mixed liquor is pumped into pipe 410 is connected with a mixing
Liquid pump enters interface tube flange 4101, and the upper end of air intake pipe 420 is connected with an air intake pipe flange 4201；
Mixed liquor distribution cavity 41, which has, is spacedly distributed in the middle part of its cavity wall and is connected to mixed liquor distribution cavity 41 and air point
8 jet nozzles 411 (number is determined 3~20 according to technological parameter) with chamber 42, the injection of several jet nozzles 411
Direction downwards with level be in 0~45 degree angle, air distribution chamber 42 have connection air distribution chamber 42 and outside and with it is above-mentioned
The corresponding several mixed spray tubes 421 with one heart of several jet nozzles 411；Above-mentioned several jet nozzles 411 and several mixing jettings
There is the air of connection air distribution chamber 42 to suck gap 43 between pipe 421.
The length L1 of mixed spray tube 421 is 250-300mm；Diameter D1 is 36-50mm, D2 40-60mm.Air sucks
The length L2 in gap 43 is 35-45mm.The length L3 of jet nozzle 411 is 50-65mm, the inlet diameter D4 of jet nozzle 411
Throat pipe diameter D3 for 40-50mm, jet nozzle 411 is 20-30mm.
When operation, the mixed liquor that the present invention is pumped via pipes into after the pressurization of the second supernatant is pumped into pipe 410 to mixed liquor distribution
Chamber 41 is uniformly distributed to 8 jet nozzles 411, and is sprayed from the trunnion of 411 end of jet nozzle, and the liquid stream of high speed makes sky
Aspiration, which enters, forms local negative pressure at gap 43, so that the air in air distribution chamber 42 is inhaled into, be partially dissolved in mixed liquor
In, a large amount of small bubbles are partly divided by liquid stream, become gas liquid mixture.Gas liquid mixture is through 421 row of mixed spray tube
Go out, form strong injection stream, realizes the function of oxygenation and water conservancy stirring.
(5) water outlet in mixed aeration pond obtains third supernatant after draining into secondary settling tank through mud-water separation and the second precipitation is dirty
Mud is discharged into discharge pond, ammonia nitrogen waste water raw water after the COD of the third supernatant is down to 60mg/l hereinafter, ammonia nitrogen is down to 5mg/l
0.5~1 times of the second precipitating sludge of quality be then back to mixed aeration pond；
(6) discharge pond in material parts be back into water mixing pit 2 be used for adjust above-mentioned combined sewage basicity and
Carbon-nitrogen ratio, the amount to flow back in the step are 1-2 times of the volume of ammonia nitrogen waste water raw water, remaining be delivered to discharge pipe network discharge or into
One step treatment for reuse.
The more traditional nitrification/denitrification process of the present invention, can reduce power consumption 50%, since carbon source need not be added,
70% or more integrated operation cost reduction, while construction land reduces 50% or more.
The foregoing is only a preferred embodiment of the present invention, therefore cannot limit the scope of implementation of the present invention according to this, i.e.,
According to equivalent changes and modifications made by the scope of the claims of the present invention and description, all should still belong in the range of the present invention covers.
Claims (8)
1. a kind of high-concentration ammonia nitrogenous wastewater bioremediation, it is characterised in that：Include the following steps：
(1) the ammonia nitrogen waste water raw water by ammonia-nitrogen content more than 300mg/l is sent into ammonia nitrogen waste water regulating reservoir, carries out water quality and quantity tune
Section；
(2) material obtained by step (1) is sent into neutralization pond, adjusts pH to 6.5~7.0；
(3) material obtained by step (2) is sent into half digestion ammoxidation reaction device and is handled, it is anti-to be somebody's turn to do half digestion ammoxidation
It includes a reaction tank, a water inlet mixing pit and one first frequency conversion air blower to answer device；
Reaction tank, in liquid in contain granule sludge, be located at liquid level under from bottom to up be equipped with a micro-pore aeration mechanism, one into
Water cloth hydrophone, a reflux water distributor and several three phase separators, and at least exhaust pipe for stretching out liquid level, micro-pore aeration
Mechanism and water inlet distributor are set to the bottom of reaction tank, and reflux water distributor and several three phase separators are set to the middle part of reaction tank,
It is half digestion ammoxidation reaction area between water inlet distributor and reflux water distributor, several three phase separators are by gas collecting tube and at least
One exhaust pipe is connected to, and several catch basins are equipped with above several three phase separators, and a drainpipe is connected to several catch basins；
Water inlet mixing pit, upper part are connected to above-mentioned reflux water distributor by a return duct, and bottom passes through a water inlet pipe and is connected to
Water inlet distributor is stated, which is equipped with an intake pump, and the water outlet of the intake pump is equipped with water inlet control valve；
First frequency conversion air blower is connected to above-mentioned micro-pore aeration mechanism；
The step is specially：First by obtained by step (2) material be sent into water inlet mixing pit, water inlet mixing pit in object therein
Combined sewage is formed after material mixing；It is promoted through intake pump and water inlet distributor is entered by water inlet pipe, it is useless for ammonia nitrogen to enter water
The sum of water raw water amount and backflow water yield, backflow water yield is determined according to the upper speed in ammonia-nitrogen content and reaction tank, and is passed through
Water inlet control valve controls, and contacts mixing flow direction with the micro-bubble that micro-pore aeration mechanism discharges into the combined sewage in reaction tank
Half digestion ammoxidation reaction area, the aeration quantity of micro-pore aeration mechanism pass through frequency conversion air compressor control；In half digestion ammoxidation reaction
The molecular oxygen of area's dissolving is utilized by the nitrifier on the surface layer of granule sludge, and completion half is reacted with the ammonia nitrogen for being adsorbed onto nitrifier surface
Digestion process obtains the sewage through half digestion；Sewage continuation through half digestion contacts with granule sludge and penetrates into granule sludge
Internal layer and anaerobic ammonia oxidizing bacteria complete anti-nitration reaction, so that ammonia nitrogen is oxidized to nitrogen, undissolved oxygen bubbles and nitrogen bubble,
The nitrogen bubble and carbon dioxide that Anammox generates carry out separation by three phase separator and are arranged by gas collecting tube and exhaust pipe
Go out, granule sludge flows back to half digestion ammoxidation reaction area, and reaction tank is discharged by catch basin and drainpipe in the first supernatant of gained
And enter a heavy pond；Under the effect of gravity, recirculation water is collected by the water distributor that flows back and is back into water mixing pit；
(4) material in a heavy pond is obtained into the second supernatant and the first precipitating sludge through precipitation, which is sent into
Mixed aeration pond, by carrying out Air Exposure in jet mixing aerator therein, the first precipitating sludge returns to above-mentioned water inlet
Mixing pit；
(5) water outlet in mixed aeration pond drains into after secondary settling tank and obtains third supernatant and the second precipitating sludge through mud-water separation, waits for
The COD of the third supernatant is down to 60mg/l hereinafter, ammonia nitrogen is discharged into discharge pond, the matter of ammonia nitrogen waste water raw water after being down to 5mg/l
0.5~1 times of the second precipitating sludge of amount is then back to mixed aeration pond；
(6) material parts in pond are discharged and are back to the basicity and carbon nitrogen for being used for adjusting above-mentioned combined sewage into water mixing pit
Than the amount to flow back in the step is 1-2 times of the volume of ammonia nitrogen waste water raw water, remaining is delivered to discharge pipe network discharge or further
Treatment for reuse.
2. a kind of high-concentration ammonia nitrogenous wastewater bioremediation as described in claim 1, it is characterised in that：The step (2)
For：Material obtained by step (1) is sent into neutralization pond, adjusted by way of adding sodium hydroxide or sulfuric acid pH to 6.5~
7.0。
3. a kind of high-concentration ammonia nitrogenous wastewater bioremediation as described in claim 1, it is characterised in that：The micro-pore aeration
Mechanism includes at least one aeration air inlet pipe and several micro-hole aerators in at least one aeration air inlet pipe.
4. a kind of high-concentration ammonia nitrogenous wastewater bioremediation as described in claim 1, it is characterised in that：The half digestion ammonia
The dissolved oxygen concentration of oxidation reaction zone is 0.2~0.8mg/l.
5. a kind of high-concentration ammonia nitrogenous wastewater bioremediation as described in claim 1, it is characterised in that：The reflux water distribution
The backflow water yield of device is 1~5 times of the volume of ammonia nitrogen waste water raw water.
6. a kind of high-concentration ammonia nitrogenous wastewater bioremediation as described in claim 1, it is characterised in that：The jet mixing
Aerator includes a mixed liquor distribution cavity and an air distribution chamber, and air distribution chamber is covered in outside mixed liquor distribution cavity；Mixing
There is a mixed liquor to be pumped into pipe for the lower end of liquid distribution cavity, and the upper end of air distribution chamber has an air intake pipe；Mixed liquor distributes
Chamber has several jet nozzles for being spacedly distributed and being connected to mixed liquor distribution cavity and air distribution chamber in the middle part of its cavity wall, if should
The injection direction of dry jet nozzle downwards with level be in 0~45 degree angle, air distribution chamber have connection air distribution chamber with
It is external and with above-mentioned several concentric corresponding several mixed spray tubes of jet nozzle；If above-mentioned several jet nozzles are sprayed with dry-mixing
Penetrate the air sucking gap with connection air distribution chamber between pipe；Second supernatant is delivered to the mixed liquor distribution cavity.
7. a kind of high-concentration ammonia nitrogenous wastewater bioremediation as claimed in claim 6, it is characterised in that：The jet nozzle
Number be 3~20.
8. a kind of high-concentration ammonia nitrogenous wastewater bioremediation as claimed in claim 6, it is characterised in that：The air
Suction line is connected to one second frequency conversion air blower.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694221A (en) * | 2020-12-30 | 2021-04-23 | 北京北方节能环保有限公司 | Biochemical neutralization treatment method and integrated device for high-acidity HMX production wastewater |
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Address after: Unit 705, 7th Floor, Building 5, Aviation Business Plaza, 228 South Five Road, Kawasaki, Xiamen Area, 361000 China (Fujian) Free Trade Pilot Area Applicant after: Xiamen Run Yuan Environmental Protection Technology Co., Ltd. Address before: Room 274, 2nd floor, 28 Shuangshishan Road, Xiamen District, China (Fujian) Free Trade Pilot Area, Xiamen, Fujian Province, 361000 Applicant before: Xiamen Run Yuan Environmental Protection Technology Co., Ltd. |
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Inventor after: Liu Chaoqun Inventor before: Peng Jie Inventor before: Liu Chaoqun |
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Application publication date: 20181113 |