CN109607792A - The anaerobic- anoxic- oxic biological denitrification phosphorous removal technique improved using electron beam irradiation - Google Patents
The anaerobic- anoxic- oxic biological denitrification phosphorous removal technique improved using electron beam irradiation Download PDFInfo
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- CN109607792A CN109607792A CN201910125707.8A CN201910125707A CN109607792A CN 109607792 A CN109607792 A CN 109607792A CN 201910125707 A CN201910125707 A CN 201910125707A CN 109607792 A CN109607792 A CN 109607792A
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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
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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
- C02F2101/105—Phosphorus compounds
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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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Abstract
This application involves a kind of anaerobic- anoxic- oxic biological denitrification phosphorous removal techniques improved using electron beam irradiation, it mainly include Anaerobic Treatment process, anoxic treatment process, Aerobic Process for Treatment process, electron beam irradiation treatment process and precipitation process process, the Anaerobic Treatment process and the precipitation process process are respectively first and last procedure of sewage treatment process, and the electron beam irradiation treatment process is placed in after the Aerobic Process for Treatment process.By utilizing the waste water after electron beam irradiation Aerobic Process for Treatment process, make to be difficult to biodegradable organic matter in waste water to be decomposed into the organic matter being readily biodegradable, obtain lower COD level, improve wastewater biodegradability, nitrification liquid after electron beam irradiation can completely or partially flow into anoxic treatment process, the biodegradable composition contained in nitrification liquid can obtain lower TN index in the case where not increasing Additional carbon sources as the carbon source of denitrification denitrogenation.
Description
Technical field
The invention belongs to field of environment engineering technology, are related to a kind of anaerobic- anoxic- oxic improved using electron beam irradiation
Biological denitrification phosphorous removal technique.
Background technique
Anaerobic- anoxic- oxic group technology is a kind of common sewage treatment process, the work with synchronous denitrification dephosphorizing
With.Act on using anaerobism section hydrolysis acidification that macromolecular hardly degraded organic substance is decomposed into small molecule is degradable in Anaerobic Treatment process
Organic matter, and the poly- phosphorus Microbiological release in waste water goes out phosphorus, meets effect of the bacterium to phosphorus, improves the biodegradability of waste water；
In Aerobic Process for Treatment process, under excess oxygen, easily biodegradable organics are converted by aerobic microbiological metabolic activity in waste water
Oxidation operation for nitrate, while in waste water decomposes supply and inhales phosphorus microorganism energy, and microorganism absorbs phosphorus from water, phosphorus into
Enter cell tissue, be enriched in microorganism, be discharged from system in the form of rich phosphorous sludge after precipitation and separation, to reach net
Change the purpose of waste water；In anoxic treatment process, the denitrifying bacteria in pond using carbonaceous organic material undecomposed in sewage as carbon source,
It is N by the reducing nitrate radical come in aerobic tank by inner circulating reflux2And it discharges.
However in practical application, the hardly degraded organic substance concentration in the waste water such as industrial wastewater, landfill leachate is high, by detesting
After oxygen, Aerobic Process for Treatment process, carbon source needed for the organic matter in sewage cannot be effectively decomposed into denitrification causes anaerobism-to lack
The fortune of chemical oxygen demand in sewage (COD) and total nitrogen (TN) content height, disposed of in its entirety technique after oxygen-aerobic combination process
The problems such as row higher cost.
Summary of the invention
It is an object of the invention to solve to apply the processing of anaerobic- anoxic- oxic group technology useless containing high-enriched organics
There is the lower problem of COD, TN removal rate in water, provides a kind of anaerobic- anoxic- oxic biology using electron beam irradiation improvement
Denitrification dephosphorization technique.
To achieve the above object, this application provides a kind of anaerobic- anoxic- oxic biologies using electron beam irradiation improvement
Denitrification dephosphorization technique, including Anaerobic Treatment process, anoxic treatment process, Aerobic Process for Treatment process, electron beam irradiation treatment process with
And precipitation process process, the Anaerobic Treatment process are the first procedure of sewage treatment process, the precipitation process process is
Last procedure of sewage treatment process, the electron beam irradiation treatment process are placed in after the Aerobic Process for Treatment process.
As the further improvement of the application, the order of the sewage treatment process be followed successively by the Anaerobic Treatment process,
The Aerobic Process for Treatment process, the electron beam irradiation treatment process, the anoxic treatment process, the precipitation process process, institute
Stating the sewage after Aerobic Process for Treatment process is nitrification liquid, and the nitrification liquid is all after the electron beam irradiation treatment process is handled
Import the anoxic treatment process.
As the further improvement of the application, the order of the sewage treatment process be followed successively by the Anaerobic Treatment process,
The anoxic treatment process, the Aerobic Process for Treatment process, the electron beam irradiation treatment process, the precipitation process process, institute
The sewage stated after Aerobic Process for Treatment process is nitrification liquid, and the nitrification liquid is all via electron beam irradiation treatment process.
As the further improvement of the application, between the electron beam irradiation treatment process and the precipitation process process
Equipped with biochemical treatment process.
As the further improvement of the application, the nitrification liquid is divided into two parts, and a part is through the electron beam irradiation
The nitrification liquid for the treatment of process processing flows back into the anoxic treatment process, another part through the electron beam irradiation treatment process at
The nitrification liquid of reason is introduced directly into the biochemical treatment process.
As the further improvement of the application, the ratio of the nitrification liquid reflux is controlled 40%~80%.
As the further improvement of the application, the energy of the electron beam irradiation is≤5MeV, the electron beam irradiation
Line is≤50mA, and the irradiation dose of the electron beam irradiation is 0.5~5.0KGy.
As the further improvement of the application, the Anaerobic Treatment process, the Aerobic Process for Treatment process, the electron beam spoke
It is reacted at normal temperature according to treatment process, the anoxic treatment process and the precipitation process process.
As the further improvement of the application, the Anaerobic Treatment process, the Aerobic Process for Treatment process, the electron beam spoke
It controls according to the pH value of the sewage for the treatment of process, the anoxic treatment process and the precipitation process process 6.0~8.5.
The beneficial effects of the present application are as follows by the basis of anaerobic- anoxic- oxic biological carbon and phosphorous removal traditional handicraft
On, electron beam irradiation treatment process is added after aerobic section, using the waste water after electron beam irradiation Aerobic Process for Treatment process, makes to give up
It is difficult to biodegradable organic matter in water and is decomposed into the organic matter being readily biodegradable, can achieve entire biochemical system lower
COD level, improve the biodegradability of waste water, the nitrification liquid after electron beam irradiation can all flow directly into anoxic treatment
Process or part nitrification liquid are back to anoxic treatment process as the carbon source of denitrification denitrogenation, the nitrification liquid after electron beam irradiation
In the biodegradable composition that contains can also as the carbon source of denitrification denitrogenation, can in the case where not increasing Additional carbon sources,
Obtain lower TN index.
Detailed description of the invention
Fig. 1 be this application involves an embodiment specific flow chart；
Fig. 2 be this application involves another embodiment specific flow chart.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the application one
Section Example is not intended to limit the scope of the invention instead of all the embodiments.Based on the embodiment in the application, originally
Field those of ordinary skill every other embodiment obtained without making creative work, belongs to the application
The range of protection.
Embodiment 1
A kind of anaerobic- anoxic- oxic biological denitrification phosphorous removal technique improved using electron beam irradiation, as shown in Figure 1, including
Anaerobic Treatment process, Aerobic Process for Treatment process, electron beam irradiation treatment process, anoxic treatment process and precipitation process process, tool
Body is shown in steps are as follows: firstly, sewage is imported anaerobic pond, the organic matter in sewage decomposed using anaerobe,
First stage treatment fluid is obtained, first stage treatment fluid is imported into aerobic tank and carries out aerobic microbiological reaction, utilizes aerobic micro- life
The organic matter in first stage treatment fluid is converted the second stage treatment fluid containing nitrate, the second stage treatment fluid by object
For nitrification liquid；Secondly, the nitrification liquid all passes through the processing of electron beam irradiation treatment process, the energy of the electron beam irradiation≤
5MeV, electronic beam current≤50mA, irradiation dose is between 0.5KGy~2.0KGy, the nitre crossed by the electron beam irradiation
Change liquid and all import anoxic pond, the anoxic pond is the anoxic pond containing MBBR filler, passes through the electron beam in anoxic pond
Denitrifying bacteria in the irradiated nitrification liquid is using carbonaceous organic material undecomposed in sewage as carbon source, to reach sewage
The purpose of purification obtains phase III treatment fluid, has carried out electron beam before second stage treatment fluid enters the anoxic pond
Radiation treatment further makes organic matter difficult to degrade in sewage be decomposed into degradable organic matter, the nitre before electron beam irradiation
Changing COD in liquid is 120~150mg/L, and TN is about 20mg/L；Finally, the treatment fluid of the phase III is imported into sedimentation basin, into
Row precipitation process obtains final process liquid, COD < 50mg/L, TN < 10mg/L in the final process liquid, generally without electronics
The COD for the final process liquid that beam radiation treatment is crossed is 80mg/L or so, it is known that waste water is bright after electron beam irradiation treatment process
It is aobvious to reduce COD index.
Embodiment 2
A kind of anaerobic- anoxic- oxic biological denitrification phosphorous removal technique improved using electron beam irradiation, as shown in Fig. 2, mainly
Including Anaerobic Treatment process, anoxic treatment process, Aerobic Process for Treatment process, electron beam irradiation treatment process, biochemical treatment process and
Precipitation process process, the specific steps are as follows: firstly, sewage is imported anaerobic pond, using anaerobe to organic in sewage
Object is decomposed, and first stage treatment fluid is obtained；Secondly, first stage treatment fluid is imported anoxic pond, to entrance anoxic pond
First stage treatment fluid carries out the processing of anoxic pond process, obtains second stage treatment fluid；Again, second stage treatment fluid is imported
Aerobic tank is carried out aerobic microbiological reaction, is converted the organic matter in first stage treatment fluid to containing nitre using aerobic microbiological
The treatment fluid of the phase III treatment fluid of hydrochlorate, the phase III is nitrification liquid, is equipped with behind the Aerobic Process for Treatment process
Electron beam irradiation treatment process, the nitrification liquid all pass through electron beam irradiation treatment process and are handled, a part of warp
The nitrification liquid for crossing the electron beam irradiation processing flows back into the anoxic treatment process, the nitre as the carbon source of anti-nitration reaction
The ratio for changing liquid reflux is controlled 40%~80%, and anoxic treatment process is made to reach more preferable on the basis of not increasing Additional carbon sources
Wastewater treatment efficiency, the energy of the electron beam irradiation is 0.5MeV~5MeV, and electronic beam current is 1mA~50mA, irradiates agent
Amount is 5.0KGy, and COD is 120~150mg/L in the nitrification liquid before electron beam irradiation, and TN is about 20mg/L, another part warp
The nitrification liquid for crossing the electron beam irradiation processing is directly entered biochemical treatment process, obtains fourth stage treatment fluid；Finally, by
Four stage treatment fluids import sedimentation basin, carry out precipitation process, obtain final process liquid.
It is the Anaerobic Treatment process, the Aerobic Process for Treatment process, described according to embodiment 1 and embodiment 2 in the application
Electron beam irradiation treatment process, the anoxic treatment process, the biochemical treatment process and the precipitation process process are normal
It is reacted under temperature；The Anaerobic Treatment process, the Aerobic Process for Treatment process, the electron beam irradiation treatment process, it is described lack
The pH value of the sewage of oxygen treatment process, the biochemical treatment process and the precipitation process process is controlled 6.0~8.5.
In conclusion using the waste water of electron beam irradiation irradiation Aerobic Process for Treatment process outflow, the waste water is nitre
Change liquid, the effect of the electron beam irradiation mainly makes hardly degraded organic substance in waste water be decomposed into easily biodegradable organics, makes waste water
In be difficult to biodegradable organic matter and be decomposed into the organic matter being readily biodegradable, can achieve entire biochemical system lower
COD level improves the biodegradability of waste water, and the nitrification liquid after electron beam irradiation can all flow directly into anoxic treatment work
Sequence or part nitrification liquid are back to anoxic treatment process as the carbon source of denitrification denitrogenation, in the nitrification liquid after electron beam irradiation
The biodegradable composition contained can also be obtained as the carbon source of denitrification denitrogenation in the case where not increasing Additional carbon sources
Obtain lower TN index.
It is emphasized that: the above is only presently preferred embodiments of the present invention, not make in any form to the present invention
Limitation, any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention,
All of which are still within the scope of the technical scheme of the invention.
Claims (9)
1. a kind of anaerobic- anoxic- oxic biological denitrification phosphorous removal technique improved using electron beam irradiation, which is characterized in that including
Anaerobic Treatment process, anoxic treatment process, Aerobic Process for Treatment process, electron beam irradiation treatment process and precipitation process process, institute
The first procedure that Anaerobic Treatment process is sewage treatment process is stated, the precipitation process process is the last of sewage treatment process
One procedure, the electron beam irradiation treatment process are placed in after the Aerobic Process for Treatment process.
2. the anaerobic- anoxic- oxic biological denitrification phosphorous removal technique according to claim 1 improved using electron beam irradiation,
It is characterized in that, the order of the sewage treatment process is followed successively by the Anaerobic Treatment process, the Aerobic Process for Treatment process, described
Electron beam irradiation treatment process, the anoxic treatment process, the precipitation process process, the dirt after the Aerobic Process for Treatment process
Water is nitrification liquid, and the nitrification liquid all imports the anoxic treatment process after electron beam irradiation treatment process processing.
3. the anaerobic- anoxic- oxic biological denitrification phosphorous removal technique according to claim 1 improved using electron beam irradiation,
It is characterized in that, the order of the sewage treatment process is followed successively by the Anaerobic Treatment process, the anoxic treatment process, described
Aerobic Process for Treatment process, the electron beam irradiation treatment process, the precipitation process process, the dirt after the Aerobic Process for Treatment process
Water is nitrification liquid, and the nitrification liquid is all via electron beam irradiation treatment process.
4. the anaerobic- anoxic- oxic biological denitrification phosphorous removal technique according to claim 3 improved using electron beam irradiation,
It is characterized in that, being equipped with biochemical treatment process between the electron beam irradiation treatment process and the precipitation process process.
5. the anaerobic- anoxic- oxic biological denitrification phosphorous removal technique according to claim 4 improved using electron beam irradiation,
It is characterized in that, the nitrification liquid is divided into two parts, the nitrification liquid that a part is handled through the electron beam irradiation treatment process
The anoxic treatment process is flowed back into, the nitrification liquid that another part is handled through the electron beam irradiation treatment process is introduced directly into institute
State biochemical treatment process.
6. the anaerobic- anoxic- oxic biological denitrification phosphorous removal technique according to claim 5 improved using electron beam irradiation,
It is characterized in that, the ratio that the nitrification liquid flows back is controlled 40%~80%.
7. the anaerobic- anoxic- oxic biological carbon and phosphorous removal work according to claim 2 or 3 improved using electron beam irradiation
Skill, which is characterized in that energy≤5MeV of the electron beam irradiation, the line of the electron beam irradiation are≤50mA, the electricity
The irradiation dose of beamlet irradiation is 0.5~5.0KGy.
8. the anaerobic- anoxic- oxic biological denitrification phosphorous removal technique according to claim 1 improved using electron beam irradiation,
It is characterized in that, the Anaerobic Treatment process, the Aerobic Process for Treatment process, the electron beam irradiation treatment process, the anoxic
Treatment process and the precipitation process process are reacted at normal temperature.
9. the anaerobic- anoxic- oxic biological denitrification phosphorous removal technique according to claim 1 improved using electron beam irradiation,
It is characterized in that, the Anaerobic Treatment process, the Aerobic Process for Treatment process, the electron beam irradiation treatment process, the anoxic
The pH value of the sewage for the treatment of process and the precipitation process process is controlled 6.0~8.5.
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| CN110590079A (en) * | 2019-10-15 | 2019-12-20 | 四川国清源环保科技有限公司 | Method for treating landfill leachate sewage in full quantity by electron beam irradiation |
| CN112851041A (en) * | 2021-02-25 | 2021-05-28 | 清华大学 | Process for treating printing and dyeing wastewater by biological treatment and coupled irradiation |
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Application publication date: 20190412 |