CN101062814A - Method for removing sewage ammonia nitrogen by employing active sludge oxidation ditch technique - Google Patents
Method for removing sewage ammonia nitrogen by employing active sludge oxidation ditch technique Download PDFInfo
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- CN101062814A CN101062814A CNA2006100261473A CN200610026147A CN101062814A CN 101062814 A CN101062814 A CN 101062814A CN A2006100261473 A CNA2006100261473 A CN A2006100261473A CN 200610026147 A CN200610026147 A CN 200610026147A CN 101062814 A CN101062814 A CN 101062814A
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- zone
- ammonia nitrogen
- oxidation ditch
- sewage
- manganese salt
- Prior art date
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- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 230000003647 oxidation Effects 0.000 title claims abstract description 26
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 26
- 239000010802 sludge Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 42
- 239000010865 sewage Substances 0.000 title claims description 34
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 150000002696 manganese Chemical class 0.000 claims abstract description 12
- 235000013379 molasses Nutrition 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 238000004062 sedimentation Methods 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 241000108664 Nitrobacteria Species 0.000 claims description 23
- 239000002594 sorbent Substances 0.000 claims description 10
- 229910021536 Zeolite Inorganic materials 0.000 claims description 7
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 7
- 239000010457 zeolite Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000003085 diluting agent Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 239000010881 fly ash Substances 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000006228 supernatant Substances 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 2
- 230000001351 cycling effect Effects 0.000 abstract description 5
- 239000002351 wastewater Substances 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 abstract description 3
- 239000003463 adsorbent Substances 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 239000010883 coal ash Substances 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 230000001580 bacterial effect Effects 0.000 description 6
- 230000031018 biological processes and functions Effects 0.000 description 5
- 238000009395 breeding Methods 0.000 description 5
- 230000001488 breeding effect Effects 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 238000006396 nitration reaction Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical group N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- 238000010170 biological method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QGZKDVFQNNGYKY-OUBTZVSYSA-N Ammonia-15N Chemical compound [15NH3] QGZKDVFQNNGYKY-OUBTZVSYSA-N 0.000 description 1
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 230000001651 autotrophic effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- -1 contains physics Chemical compound 0.000 description 1
- 239000005446 dissolved organic matter Substances 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000002062 proliferating effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses an activated sludge oxidation ditch craft to remove ammonia nitrogen of waste water, which comprises the following steps: proceeding preliminary sedimentation; removing solid impurity; entering into oxidation ditch; existing at least one nitrated zone, denitrifying zone and settling zone in the oxidation ditch; making the waste water enter into the nitrated zone; cycling through each zone; adding a nitrated bacterium cultural accelerant into the nitrated zone; setting the adding quantity at 5-20 mg/L; allocating the component of the accelerant as 100 wt molasses, 0. 2-2. 5 wt manganese salt and 1-8 wt adsorbent; allocating the manganese salt with sulfate or hydrochlorate; allocating the adsorbent as mixture; choosing with one or two or several from zeolitic powder, diatom earth, powdered activated charcoal or coal ash. The clearance of ammonia nitrogen increases above 20% with this invention.
Description
Technical field
The present invention relates to adopt active sludge oxidation ditch technique, remove the method for sewage ammonia nitrogen through the nitrification and denitrification process.
Background technology
Ammonia nitrogen is the bigger pollution factor of harm in the water body, and it can cause the eutrophication in river, lake, and water body self-purification ability is weakened.The ammonia nitrogen of polluted-water is often referred to the nitrogen that exists with the ammonia form, and the difficulty of ammonia nitrogen removal is much bigger in the contaminated water body of other organic pollutant relatively.In the prior art, the removal method of ammonia nitrogen mainly contains physics, chemistry and biological method in the contaminated water body.Physics or chemical method comprise air stripping method, break point chlorination, ion exchange adsorption, flocculent precipitation, electroosmose process, catalytic wet air oxidation, liquid-film method etc.These methods generally are used for the pre-treatment of high-concentration ammonia nitrogenous wastewater, and processing cost is very high.Biological process removal ammonia nitrogen is the effect by certain micro-organisms, thereby makes the ammonia nitrogen in the contaminated water body finally form the purpose that nitrogen effusion water body reaches purifying treatment.The biological process cost is much lower, and its applicable surface is also wider, as the removal of ammonia nitrogen in ammonia nitrogen purifying treatment, sanitary wastewater or the trade effluent of fishery cultivating water body etc.
Biological process is removed ammonia nitrogen and is mainly finished by nitrification process and denitrification process.In the nitrification process, in being oxidized to nitrate or nitrite nitrogen under the effect of ammonia nitrogen nitrifier under the aerobic condition; Denitrification is meant that nitrate and nitrite are reduced to the process of gaseous nitrogen.Under anoxia condition, utilize organism as electron donor, denitrifying bacterium is reduced to nitrogen with nitrate and nitrite.In these two processes, it is generally acknowledged that the nitrification process is even more important, it is the key that biological process is removed ammonia nitrogen, its difficulty of finishing is also higher relatively.Because most of nitrifiers are chemosynthetic autotroph microorganisms, and compare with the heterotroph microorganism, the autotrophic microorganism proliferative speed is slow, growing environment is harsh, can't get the mastery in the growth competition with the heterotroph microorganism under a lot of conditions.Therefore, when nitrifier content in the water body is low, only regulate environment such as the oxygen supply of sewage and pH value and still can't make the breeding of nitrifier self-sow in the short period of time, in industrial common way is directly to throw in the nitrated bacterial classification of cultured high density in sewage, contains the active sludge of high density nitrifier as input.The nitrated bacterial classification of these high densitys is to cultivate by special operation to obtain, and has all introduced the cultural method of the nitrated bacterial classification of high density that is used for removing the sewage ammonia nitrogen as Chinese patent ZL02156977.0 and Chinese patent application 00808700.8.Introduce nitrated bacterial classification by the external world and can guarantee that really the nitrification process successfully carries out in the short period of time, but operational management is very inconvenient, cost is also higher relatively, and the suitability of this method is not wide in range, just as handling very not suitable for the bigger industrial sewage of quantity discharged.
Summary of the invention
The invention provides a kind of method that adopts active sludge oxidation ditch technique to remove sewage ammonia nitrogen, means such as oxygen supply by adding a kind of nitrobacteria culture promoter and fit adjustment sewage to sewage and pH value can be built in water body and are fit to nitrobacteria growth breeding environment, nitrifier is growth and breeding at short notice, removes in the ammonia nitrogen nitrification process need and introduces this technical problem of nitrated bacterial classification by the external world thereby can solve biological process.
Below be the technical scheme that the present invention solves the problems of the technologies described above:
A kind of method that adopts active sludge oxidation ditch technique to remove sewage ammonia nitrogen, this method comprise that sewage enters oxidation ditch and handles after preliminary sedimentation is removed solid impurity.At least respectively have nitrification zone, denitrification zone and a settling region in the oxidation ditch, sewage is distinguished in nitrification zone water inlet and circulation through each, with the settling region supernatant liquor discharging of water inlet equivalent.Influent quality is controlled to be: 10～25 ℃ of water temperatures, pH value 7～9, basicity 200～350mg/L, BOD
5Load is less than 0.1kgBOD
5/ kgMLVSS.d; Each is distinguished processing condition and is controlled to be: nitrification zone: sludge concentration 2～4g/L, mud 10～25d in age, dissolved oxygen concentration 2～5mg/l, hydraulic detention time 8～12 hours; Denitrification zone: sludge concentration 2～4g/L, mud 10～25d in age, anaerobic state, hydraulic detention time 2～4 hours; Settling region: hydraulic detention time 2～4 hours.
Add a kind of nitrobacteria culture promoter in the nitrification zone of water inlet, add-on is 5～20mg/l, and this nitrobacteria culture promoter is a kind of composition, and component comprises molasses, manganese salt and sorbent material, and its proportioning is:
Molasses: 100 weight parts;
Manganese salt: 0.2～3.0 weight part;
Sorbent material: 1～8 weight part,
Above-mentioned manganese salt is vitriol or hydrochloride, and sorbent material is one or more the mixture in zeolite powder, diatomite, Powdered Activated Carbon or the flyash.
Manganese salt is preferably 0.8～2.0 weight part in the above-mentioned nitrobacteria culture promoter proportioning; Sorbent material is preferably 2～6 weight parts.
The preferably first water of nitrobacteria culture promoter adds in the sewage after being mixed with diluent again, and the weight ratio of nitrobacteria culture promoter and water is 1 in the diluent: (10～100).Can make that like this promotor is more even with mixing of sewage.
In technique scheme, sewage at first carries out preliminary precipitation process to remove the bigger solid impurity of volume, enters in the oxidation ditch then and handles.The structure formation and the prior art of oxidation ditch are identical, at least respectively have nitrification zone, denitrification zone and a settling region, can any order connect in each district, and promptly denitrification zone can be preposition or rearmounted.Sewage is usually in nitrification zone water inlet, and each district that flows through circularly is with the supernatant liquor discharging of the settling region of water inlet equivalent.Can constitute one or several cycling elements by above-mentioned three districts in the oxidation ditch, in certain mononitration zone water inlet and from the discharging of a certain settling region; Also can constitute one or several cycling elements,, enter a settling region from another nitrification zone or a certain denitrification zone then, supernatant liquor discharging behind sludge settling from certain mononitration zone water inlet by nitrification zone and denitrification zone.When cycling element is one when above, nitrated promotor can only add in the nitrification zone that is positioned at water-in.Sewage carries out nitration reaction under aerobic condition in nitrification zone; In denitrification zone, under the anaerobic condition, carry out anti-nitration reaction; Realize the sedimentation of mud in the settling region, settled sludge part refluxes, and excess sludge regularly discharges.Institute is stressed that, different and the mutual type of attachment of the quantity of nitrification zone, denitrification zone and the settling region that exists in oxidation ditch in the existing oxidation ditch process is of a great variety, but the present invention does not propose special requirement to the structure formation of oxidation ditch, the structure formation of existing all kinds of active sludge oxidation ditch can both be applicable to technical scheme of the present invention, and basic requirement is at least respectively to exist nitrification zone, denitrification zone and a settling region to constitute a cycling element with order series connection arbitrarily.
As everyone knows, nitrifier is relatively responsive to outside atmosphere, and growth and breeding is very high to environment requirement, also needs suitable nitrifier and cultivate and promote the material existence except that aerobic and suitable potential of hydrogen of needs and temperature.Existing result of study shows that dissolved organic carbon (DOC), molecular state organism (POM), this three classes material cultivation to nitrifier under low consistency conditions of each biostearin have obvious facilitation.The nitrobacteria culture promoter that uses among the present invention mainly contains three kinds of components, and molasses wherein are main component, and it is rich in dissolved organic matter (DOC), macromolecular substance (POM), VITAMIN.It two is a manganese salt, and its effect is the necessary mineral substance of additional nitration bacteria growing, and participates in nitration reaction as the component of enzyme.The third composition is a sorbent material, and it plays absorption, precipitates ammonia nitrogen, the nitrobacteria growing carrier is provided in the nitration reaction system.
Compared with prior art, advantage of the present invention mainly comprises two aspects.The one, by directly adding a kind of nitrobacteria culture promoter, make sewage itself produce the environment that is fit to the nitrobacteria growth breeding to sewage, nitrifier can breed growth at short notice fast, needn't introduce nitrated bacterial classification by the external world again, and operating process is more simple.Environment such as the temperature of fit adjustment sewage, dissolved oxygen and pH value, the nitrification process can be carried out at short notice smoothly, under the identical situation of other condition, to have used after this promotor ammonia-N removal rate to improve nearly more than 20%, satisfied the processing requirement that the industrial biological method is removed ammonia nitrogen well; The 2nd, because the main composition molasses of the promotor of adopting are the waste materials that sugar industry produces, its price is very cheap, so the whole cost of this promotor is very low.From another angle, the comprehensive utilization of the refuse that the present invention also produces for sugar industry provides a new approach.
Below will the invention will be further described by specific embodiment, with respect to prior art, key of the present invention is to have added a kind of nitrobacteria culture promoter in sewage water inlet, and the structure of others such as oxidation ditch, processing condition etc. are basic identical with existing active sludge oxidation ditch technique.All these are also known by those of ordinary skill in the art, so will only pay attention to enumerating conditions such as nitrobacteria culture promoter proportioning, dosages in an embodiment.
Embodiment
The sewage of each embodiment test is the petrochemical complex composite wastewater, and through first precipitation process, influent quality:
COD
Cr 246mg/l
NH
3-N 33mg/l
[embodiment 1～10]
Sewage is adjusted to water quality after preliminary sedimentation is removed solid impurity: 10～25 ℃ of water temperatures, pH value 7～9, basicity 200～350mg/L, BOD
5Load is less than 0.1kgBOD
5/ kgMLVSS.d.
The oxidation ditch of disposing of sewage is configured to three channel type oxidation channels, is respectively nitrification zone, denitrification zone and settling region, and with above-mentioned order series connection, cubic capacity is 87000m
3
The processing condition of nitrated, denitrification and settling region are controlled to be:
Nitrification zone: sludge concentration 2～4g/L, mud 10～25d in age, dissolved oxygen concentration 2～5mg/l, hydraulic detention time 8～12 hours;
Anti-nitre district: sludge concentration 2～4g/L, mud 10～25d in age, anaerobic state, hydraulic detention time 2～4 hours;
Settling region: hydraulic detention time 2～4 hours.
Sewage enters oxidation ditch by the water-in of nitrification zone, and pass through nitrification zone circularly, denitrification zone and settling region.Flooding velocity is controlled to be 4500m
3/ hr, the settling region supernatant liquor discharging of equivalent.The settling region sludge part refluxes, and excess sludge regularly discharges.
Drop into nitrobacteria culture promoter continuously by the amount of setting in the sewage of nitrification zone, nitrobacteria culture promoter is mixed with diluent with service water earlier, and the weight ratio of nitrobacteria culture promoter and water is 1 in the diluent: (10～100).The nitrobacteria culture promoter that each embodiment uses is prepared in required ratio, and wherein molasses are 100 weight parts, and the proportioning of other component sees Table 1, and the promotor dosage sees Table 2.
The water quality of test water outlet.Test result sees Table 2, and wherein comparative example does not add promotor, the same embodiment of all the other test conditionss for water inlet.
Table 1. unit: weight part
| Manganese salt | Sorbent material | |||
| Title | Content | Title | Content | |
| Embodiment 1 | MnSO 4 | 0.2 | Zeolite powder | 1 |
| Embodiment 2 | MnSO 4 | 0.8 | Zeolite powder/Powdered Activated Carbon | 3 |
| Embodiment 3 | MnSO 4 | 0.9 | Powdered Activated Carbon | 2 |
| Embodiment 4 | MnSO 4 | 1.5 | Flyash | 4 |
| Embodiment 5 | MnSO 4 | 2.0 | Zeolite powder/diatomite | 6 |
| Embodiment 6 | MnSO 4 | 2.0 | Zeolite powder/flyash | 6 |
| Embodiment 7 | MnCl 2 | 3.0 | Flyash/diatomite | 8 |
| Embodiment 8 | MnCl 2 | 0.5 | Diatomite | 2 |
| Embodiment 9 | MnCl 2 | 2.0 | Flyash/Powdered Activated Carbon | 4 |
| Embodiment 10 | MnCl 2 | 3.0 | Diatomite/zeolite powder | 8 |
Table 2.
| Promotor dosage (mg/l) | Water outlet COD Cr (mg/l) | COD CrClearance (%) | Water outlet NH 3-N (mg/l) | NH 3-N clearance (%) | |
| Embodiment 1 | 8 | 54.2 | 78.0 | 3 | 90.9 |
| Embodiment 2 | 6 | 46.1 | 81.3 | 3.1 | 90.6 |
| Embodiment 3 | 16 | 43.3 | 82.4 | 1.7 | 94.8 |
| Embodiment 4 | 12 | 43.1 | 82.5 | 2.4 | 92.7 |
| Embodiment 5 | 15 | 58.7 | 76.1 | 2.1 | 93.6 |
| Embodiment 6 | 18 | 53.3 | 78.3 | 1.9 | 94.2 |
| Embodiment 7 | 20 | 58.1 | 76.4 | 3.3 | 90.0 |
| Embodiment 8 | 5 | 57.2 | 76.7 | 3.4 | 89.7 |
| Embodiment 9 | 10 | 46.9 | 80.9 | 2.1 | 93.6 |
| Embodiment 10 | 12 | 56.1 | 77.2 | 3.2 | 90.3 |
| Comparative example | - | 72.5 | 70.5 | 9.9 | 70.0 |
Claims (4)
1, a kind of method that adopts active sludge oxidation ditch technique to remove sewage ammonia nitrogen, this method comprises that sewage enters oxidation ditch and handles after preliminary sedimentation is removed solid impurity, at least respectively there are nitrification zone, denitrification zone and a settling region in the oxidation ditch, sewage is in nitrification zone water inlet and each district of circulation process, with the settling region supernatant liquor discharging of water inlet equivalent, influent quality is controlled to be: 10～25 ℃ of water temperatures, pH value 7～9, basicity 200～350mg/L, BOD
5Load is less than 0.1kgBOD
5/ kgMLVSS.d; Each is distinguished processing condition and is controlled to be: nitrification zone: sludge concentration 2～4g/L, mud 10～25d in age, dissolved oxygen concentration 2～5mg/l, hydraulic detention time 8～12 hours; Denitrification zone: sludge concentration 2～4g/L, mud 10～25d in age, anaerobic state, hydraulic detention time 2～4 hours; The settling region: hydraulic detention time 2～4 hours,
It is characterized in that adding a kind of nitrobacteria culture promoter in the nitrification zone of water inlet, add-on is 5～20mg/l, and this nitrobacteria culture promoter is a kind of composition, and component comprises molasses, manganese salt and sorbent material, and its proportioning is:
Molasses: 100 weight parts;
Manganese salt: 0.2～3.0 weight part;
Sorbent material: 1～8 weight part,
Above-mentioned manganese salt is vitriol or hydrochloride, and sorbent material is one or more the mixture in zeolite powder, diatomite, Powdered Activated Carbon or the flyash.
2, the method for removal sewage ammonia nitrogen according to claim 1 is characterized in that manganese salt is 0.8～2.0 weight part in the described nitrobacteria culture promoter proportioning.
3, the method for removal sewage ammonia nitrogen according to claim 1 is characterized in that sorbent material is 2～6 weight parts in the described nitrobacteria culture promoter proportioning.
4, the method for removal sewage ammonia nitrogen according to claim 1 is characterized in that adding sewage again after the first water of described nitrobacteria culture promoter is mixed with diluent, and the weight ratio of nitrobacteria culture promoter and water is 1 in the diluent: (10～100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100261473A CN100542979C (en) | 2006-04-27 | 2006-04-27 | Method for Removing Ammonia Nitrogen from Sewage Using Activated Sludge Oxidation Ditch Process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100261473A CN100542979C (en) | 2006-04-27 | 2006-04-27 | Method for Removing Ammonia Nitrogen from Sewage Using Activated Sludge Oxidation Ditch Process |
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| CN101062814A true CN101062814A (en) | 2007-10-31 |
| CN100542979C CN100542979C (en) | 2009-09-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583706A (en) * | 2012-01-16 | 2012-07-18 | 宜态科环保技术(苏州)有限公司 | Processing method for removing ammonia nitrogen through high-salt low-carbon industrial waste water continuous biological synergism |
| CN117819722A (en) * | 2024-01-17 | 2024-04-05 | 福州市规划设计研究院集团有限公司 | Sewage treatment method based on compound diatomite and three-ditch oxidation ditch technology |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146347B (en) * | 2009-12-18 | 2012-07-04 | 浙江天科高新技术发展有限公司 | Acinetobacter sp. and application of composite bacterial agent of acinetobacter species |
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- 2006-04-27 CN CNB2006100261473A patent/CN100542979C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583706A (en) * | 2012-01-16 | 2012-07-18 | 宜态科环保技术(苏州)有限公司 | Processing method for removing ammonia nitrogen through high-salt low-carbon industrial waste water continuous biological synergism |
| CN117819722A (en) * | 2024-01-17 | 2024-04-05 | 福州市规划设计研究院集团有限公司 | Sewage treatment method based on compound diatomite and three-ditch oxidation ditch technology |
| CN117819722B (en) * | 2024-01-17 | 2024-06-28 | 福州市规划设计研究院集团有限公司 | Sewage treatment method based on compound diatomite and three-ditch oxidation ditch technology |
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| Publication number | Publication date |
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| CN100542979C (en) | 2009-09-23 |
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