CN103011399A - Novel anammox biomembrane reactor and biological denitrifying method thereof - Google Patents
Novel anammox biomembrane reactor and biological denitrifying method thereof Download PDFInfo
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- CN103011399A CN103011399A CN2012105508798A CN201210550879A CN103011399A CN 103011399 A CN103011399 A CN 103011399A CN 2012105508798 A CN2012105508798 A CN 2012105508798A CN 201210550879 A CN201210550879 A CN 201210550879A CN 103011399 A CN103011399 A CN 103011399A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 230000000712 assembly Effects 0.000 claims abstract description 51
- 238000000429 assembly Methods 0.000 claims abstract description 51
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 25
- 239000010865 sewage Substances 0.000 claims abstract description 20
- 239000010802 sludge Substances 0.000 claims description 13
- 230000000630 rising effect Effects 0.000 claims description 12
- 241000894006 Bacteria Species 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 7
- 230000001590 oxidative effect Effects 0.000 claims description 7
- 230000033558 biomineral tissue development Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 241000468339 Candidatus Brocadia Species 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 238000012546 transfer Methods 0.000 abstract description 8
- 238000001914 filtration Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 24
- 229910052757 nitrogen Inorganic materials 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 9
- 239000011159 matrix material Substances 0.000 description 8
- 239000002351 wastewater Substances 0.000 description 8
- 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 7
- 241001453382 Nitrosomonadales Species 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- FRXSZNDVFUDTIR-UHFFFAOYSA-N 6-methoxy-1,2,3,4-tetrahydroquinoline Chemical compound N1CCCC2=CC(OC)=CC=C21 FRXSZNDVFUDTIR-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
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- Y02W10/12—
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to the technical field of environmental protection and sewage treatment equipment, in particular to a novel anammox biomembrane reactor and a biological denitrifying method using the anammox biomembrane reactor. The anammox biomembrane reactor comprises a reaction tank and at least one filtering assembly inside the reaction tank, wherein the filtering assembly comprises a water-permeable supporting structure with a cavity, and non-woven fabric covering on the outer surface of the supporting structure; the tops of all filtering assemblies are connected with a water outlet pump through water outlet pipes; the water outlet pipes are communicated with the cavities of the all filtering assemblies; and a water inlet is formed at the lower part of the reaction tank. The anammox biomembrane reactor is simple in structure, high in denitrifying efficiency and effective in mass transfer enhancement.
Description
Technical field
The present invention relates to environment protection, technical field of sewage treatment equipment, relate in particular to a kind of novel Anammox biofilm reactor and biological denitrification method thereof.
Background technology
Along with the development of industrial or agricultural and the raising of people's living standard, the pollution of nitrogen is day by day serious, has become one of principal element of water environment pollution.Many countries are to the increasingly stringent that requires of ammonia nitrogen in the wastewater discharge standard and total nitrogen, and biological denitrificaion moves the attention that the advantages such as investment cost is low, secondary pollution is little are subject to the various countries investigator with it.But use maximum traditional nitrated-nitrated section energy consumption of denitrification process is huge, and denitrification section carbon source demand amount is high.And, have at present a large amount of high NH
4-N, the waste water of low C/N: such as percolate, sludge digestion supernatant liquor, piggery wastewater etc., denitrification section carbon source deficiency becomes the greatest problem that faces in the above wastewater treatment process.
In recent years, a collection of novel process take Anammox (ANAMMOX) as representative is shown up prominently in biological denitrificaion is processed.Anammox (ANAMMOX) is with NO under anaerobism or anoxia condition
2 -As electron acceptor(EA), utilizing autotroph (ANAMMOX bacterium) is the technique that nitrogen is realized denitrogenation with the ammonia nitrogen direct oxidation.The ANAMMOX technology has shortened Approach of Removal of Nitrogen, saves energy consumption except having, reduces excess sludge production, saves the advantage of cost of investment and working cost, also has the characteristics of obvious low-carbon (LC) and sustainability.
Yet along with going deep into of research, ANAMMOX technique has also exposed some intrinsic defectives.For example, as autotroph, the ANAMMOX bacteria growing is slow, and generation time is long, and the doubling time reaches 11 days, and cell yield is low, is 0.11gVSS/gNH
4 +-N causes the enrichment time of ANAMMOX reactor very long, and the startup of first plant-scale ANAMMOX reactor has expended nearly 3 years time in the world; Under high loading, a large amount of granule sludges float (density reduction), cause mud seriously to run off; Response matrix has toxicity, may produce reaction to suppress.Therefore, keep the sludge concentration of ANAMMOX bacterium in reactor most important to improving the ANAMMOX nitric efficiency.The principal mode of the reactor of at present laboratory study and practical engineering application is sequencing batch reactor and upflow anaerobic sludge blanket process, but sludge loss is a large problem.
Summary of the invention
The technical problem that the present invention solves is to overcome the deficiencies in the prior art, a kind of simple in structure, efficient hardening mass transfer is provided, improves novel Anammox biofilm reactor and the biological denitrification method thereof of nitric efficiency.Starting point of the present invention is to utilize biofilm reactor that muddy water is separated fully, make the characteristics of thoroughly separating of hydraulic detention time (HRT) and sludge age, biofilm reactor and the combination of ANAMMOX technique, again under the effect of pressure difference, make sewage force to be undertaken flowing out after the ANAMMOX reaction by microbial film, develop the Anammox biofilm reactor of reinforcing mass transfer, carry out efficient denitrification, obtain high-quality effluent quality.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of novel Anammox biofilm reactor, comprise reaction tank and be located at least one interior filter assemblies of reaction tank, described filter assemblies comprises that one has cavity and permeable supporting structure and the non-woven fabrics that is covered in the supporting structure outside surface, described each filter assemblies top all is connected to out on the water pump by rising pipe, and described rising pipe communicates with the cavity of filter assemblies; Described reaction tank bottom is provided with water-in.Anammox biofilm reactor of the present invention, simple in structure by specially designed filter assemblies structure, optimized anaerobic ammonia oxidation process.The non-woven fabrics of filter assemblies can play two aspect effects: (1) provides carrier for the apposition growth of microorganism, non-woven fabrics loose porous (aperture is about 10 microns), and surface irregularity is suitable for adhering to of poky anaerobic ammonia oxidizing bacteria.(2) play the effect of physical filtering material, the thicker microbial film that the non-woven fabrics outside surface forms, improved the cutoff performance of non-woven fabrics, make it have the membrane filtration effect of similar MBR, effectively prevented sludge loss, Anammox reaction potentiality are large, can save secondary sedimentation basins and sludge reflux facility.In addition, filter assemblies with go out water pump and be connected, by going out the suction function of water pump, sewage flows out after being forced through filter assemblies, is conducive to the interior matrix of reactor and contacts the reinforcing mass transfer process with thalline, alleviate matrix (ammonia nitrogen and nitrite nitrogen) restraining effect, improve nitric efficiency.
Further, novel membrane-biological membrane reactor of the present invention also comprises pump sump, and described pump sump is connected to by water inlet pipe on the water-in of reaction tank, and described water inlet pipe is provided with intake pump and water intaking valve.When carrying out sewage disposal, by the pending sewage of this pump sump splendid attire, also this pump sump can be set, and reactor of the present invention directly is connected to pond, pond or other waters that need to dispose of sewage by water pipe like this.
Further, described reaction tank bottom is provided with draw-in groove, and described filter assemblies bottom is stuck in the described draw-in groove.Best, described filter assemblies is a plurality of, and equally spaced being stuck in the described draw-in groove.And has the gap between the bottom of described filter assemblies and the reaction tank bottom surface.
Further, described filter assemblies is comprised of the two-layer nonwoven of the being located at both sides back up pad middle with being located at the both sides non-woven fabrics, described back up pad is the slab construction that hollow and two sides have permeable hole, and non-woven fabrics is fixed on the outside surface of back up pad and covers permeable hole on the back up pad fully; The hollow cavity of described back up pad forms the cavity of described filter assemblies.
Further, described permeable hole is evenly distributed on the two sides of back up pad, and the back up pad two sides are latticed.The even distribution of permeable hole has formed the fenestral fabric of back up pad two sides.
Further, described rising pipe is provided with vacuum pressure gauge, is used for monitoring the variation of membrane resistance.
Further, described reaction tank is made by synthetic glass is bonding, and its outside surface parcel light shield layer is for rectangular-shaped and seal, so that the discharge of gas when reacting.
Further, the aperture of above-mentioned non-woven fabrics is 10 ~ 30 microns, is preferably 10 microns.
A kind of biological denitrification method of above-mentioned novel Anammox biofilm reactor comprises the steps:
Step 1 is communicated with by the water inlet road water-in of biofilm reactor, and at water inlet pipe intake pump is set with pending sewage;
Step 2 is thrown in the seed sludge that comprises anaerobic ammonium oxidizing bacteria in biofilm reactor; Water inlet pipe is connected treatment sewage;
Step 3 is opened intake pump, and sewage enters the reaction tank from water-in through the intake pump suction;
Step 4, when treating that the depth of water is higher than the filter assemblies top, open out water pump, the inner vacuum that forms of filter assemblies, thereby mineralization pressure is poor between the outside of the non-woven fabrics of filter assemblies and inside, sewage is done transmembrane movement through non-woven fabrics under the effect of the pressure difference that forms inside and outside the filter assemblies, extracted out continuously by the rising pipe on filter assemblies top and form water outlet.
In the treating processes, can pass through NaHCO
3And KH
2PO
4The pH value of control reactor is 7.5-8.2, is preferably 7.5-8.
The bacterial classification that biofilm reactor of the present invention adapts to is preferably anaerobic ammonia oxidizing bacteria, more preferably
Brocadia
Preferably, temperature of reactor keeps 34 ± 1 ℃, and dissolved oxygen is in 0.2-0.4 mg/L scope.
Compared with prior art, the beneficial effect of technical solution of the present invention is:
Compared with prior art, the present invention has the following advantages:
1) reactor of the present invention adopts non-woven fabrics as the physical filtering material with for the carrier of anaerobic ammonia oxidizing bacteria apposition growth, and its and supporting structure have consisted of filter assemblies, and with go out water pump and link to each other, play microbial film and filtration dual function;
2) the non-woven fabrics cost is low, and the characteristic that quality is light has been saved process costs and working cost;
3) nonwoven is furnished with larger porosity, surface irregularity, be suitable for adhering to of poky anaerobic ammonia oxidizing bacteria, anaerobic ammonium oxidizing bacteria can be trapped in the reactor, improve the biomass in the reaction unit, Anammox reaction potentiality are large, can save secondary sedimentation basins and sludge reflux facility, and are simple and compact for structure;
4) by going out the suction function of water pump, sewage flows out after being forced through filter assemblies, is conducive to the interior matrix of reactor and contacts with thalline, the reinforcing mass transfer process, alleviate matrix (ammonia nitrogen and nitrite nitrogen) restraining effect, improve nitric efficiency, guaranteed the efficient and stable of reactor operating performance.
Description of drawings
Fig. 1 is the structural representation of the Anammox biofilm reactor of the embodiment of the invention;
Fig. 2 is filter assemblies sectional view among Fig. 1.
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is described further.
Embodiment 1
As shown in Figure 1, for Anammox biofilm reactor structural representation of the present invention, comprise reaction tank 7 and pump sump 1.Reaction tank 7 bottoms are provided with water-in.Pump sump 1 is connected to by water inlet pipe 8 on the water-in of reaction tank 7, and water inlet pipe 8 is provided with intake pump 2 and water intaking valve 3.Water intaking valve 3 preferably is arranged on the position that water inlet pipe 8 is connected with water-in.Be provided with five filter assemblies 6 in the reaction tank, filter assemblies comprises that one has cavity and permeable supporting structure and the non-woven fabrics that is covered in the supporting structure outside surface, each filter assemblies 6 top all is connected to out on the water pump 4 by rising pipe 9, and rising pipe 9 is provided with vacuum pressure gauge 5.Rising pipe 9 communicates with the cavity of filter assemblies.
Reaction tank 7 bottoms are provided with draw-in groove, and filter assemblies 6 bottoms are stuck in the draw-in groove, and five filter assemblies equidistantly are stuck in the draw-in groove, have the gap between the bottom of filter assemblies 6 and the reaction tank bottom surface.
The concrete structure of filter assemblies 6 is as shown in Figure 2: be comprised of the two-layer nonwoven 61 of being located at both sides and the back up pad 62 be located in the middle of the non-woven fabrics of both sides, back up pad 62 is slab constructions that hollow and two sides have permeable hole 63, and non-woven fabrics 62 is fixed on the outside surface of back up pad and covers permeable hole on the back up pad fully; The hollow cavity of back up pad 62 forms the cavity of filter assemblies.Permeable hole 63 is evenly distributed on the two sides of back up pad, so that two sides are latticed.In order to cooperate the apposition growth of anaerobic ammonium oxidizing bacteria, the non-woven fabrics aperture is 10 ~ 30 microns.
Reaction tank 7 is made by synthetic glass is bonding, for packing less rectangular-shaped, and its outside surface parcel light shield layer.
The biological denitrification method of above-mentioned Anammox biofilm reactor comprises the steps:
Step 1 is thrown in the seed sludge that comprises anaerobic ammonium oxidizing bacteria in the Anammox biofilm reactor; Connect treatment sewage by water inlet pipe 8;
Step 2 is opened intake pump 2, and sewage enters the reaction tank 7 from water-in through intake pump 2 suctions;
Step 3, do not have the top of filter assemblies until the water surface after, open out water pump 4, the inner vacuum that forms of filter assemblies, thereby mineralization pressure is poor between the outside of the non-woven fabrics of filter assemblies and inside, sewage is done transmembrane movement through non-woven fabrics under the effect of the filter assemblies 6 inside and outside pressure differences that form, extracted out continuously by the rising pipe 9 on filter assemblies top and form water outlet.
Owing to carried water inlet pipe 8 and intake pump on the reactor of present embodiment, omitted so in using method, connect the step of water inlet pipe 8 and intake pump.
Below by concrete experimental data the result of use of reactor of the present invention once is described.With the simulated wastewater water inlet, remove (NH in the water inlet matrix
4)
2SO
4And NaNO
2Component in addition is composed as follows: NaHCO
3420 mgL
-1, KH
2PO
450 mgL
-1, FeSO
47H
2O 18 mgL
-1, EDTA 10 mgL
-1, KCl 1.4 mgL
-1, NaCl 1 mgL
-1, CaCl
27H
2O 1.4 mgL
-1, MgSO
47H
2O 1 mgL
-1The characteristics of the waste water that reactor of the present invention adapts to are not for adding the nitrogenous waste water of high density of organic carbon source.After going out water-based and reaching requirement, then improve the water inlet substrate concn, i.e. total nitrogen load ((NH
4)
2SO
4: NaNO
2=1:1), the sludge loading of the anaerobic ammonia oxidizing bacteria in the control reactor, the anaerobic ammonium oxidizing bacteria that present embodiment is adopted
BrocadiaBe in the logarithmic phase of metabolic process.Total nitrogen load ((NH
4)
2SO
4: NaNO
2=1:1) the increase gradient is (mg/L): 50,100,200,300,500,800.The reactor operating temperature keeps 34 ± 1 ℃, and dissolved oxygen is preferably in the 0.2-0.4 mg/L scope below 0.5 mg/L.Hydraulic detention time is 24 hours at the reactor initial stage, after reactor is stable, shortens to gradually 12 hours.Reaction parameter in the reactor of the present invention can be selected according to the required growth conditions of different strain.
The non-woven fabrics aperture is 10 microns.The characteristics of the waste water that adapts to are not for adding the nitrogenous waste water of high density of organic carbon source.Temperature of reactor keeps 34 ± 1 ℃, and pH is 7.5-8, and dissolved oxygen is in 0.2-0.4 mg/L scope, and in sewage treatment process, the operating parameter in each stage of reactor is as shown in table 1.
Each stage running parameter of table 1 Anammox biofilm reactor
Regularly collect water inlet, suspension water sample and water outlet water sample, measure the total nitrogen in the water sample, ammonia nitrogen, nitrite nitrogen and nitre nitrogen come assessing reactor to the removal effect of nitrogen by Inlet and outlet water water quality.
By 1 month cultivation, the nonwoven surface of reactor was adhered to a large amount of thalline russet, at total nitrogen the load ((NH of water inlet matrix
4)
2SO
4: NaNO
2=1:1) be in the situation of 500 mg/L, reactor water outlet ammonia nitrogen removal frank is about 80%, the nitrite nitrogen clearance is about 85%, and the pH value of water outlet is higher than the value into water pH, and various phenomenons show that Anammox biofilm reactor of the present invention can efficient hardening mass transfer and raising nitric efficiency.
Reactor operating performance at long-time (100 days) high loading is as follows: at total nitrogen the load ((NH of water inlet matrix
4)
2SO
4: NaNO
2=1:1) be in the situation of 800 mg/L, reactor water outlet ammonia nitrogen removal frank is about 75%, the nitrite nitrogen clearance is about 85%, apparently higher than 65% ammonia nitrogen removal frank and the 70% nitrite nitrogen clearance of reactor suspension.Therefore, biomembranous reinforcing mass transfer can improve 10% ammonia nitrogen removal frank and 5% nitrite nitrogen clearance.The removal speed of reactor total nitrogen is 2.7 kg N/m
3D(is in 15 L effective volumes).
Evidence, the Anammox biofilm reactor of the reinforcing mass transfer of exploitation has good Anammox performance accordingly, has strengthened the stability of reactor, has promoted simultaneously the load of integrated artistic in the stability that keeps technique.
The above is preferred embodiment of the present invention, is not limited to the present invention, and is within the spirit and principles in the present invention all, any modification of making, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. novel Anammox biofilm reactor, it is characterized in that, comprise reaction tank (7) and be located at interior at least one filter assemblies (6) of reaction tank, described filter assemblies comprises that one has cavity and permeable supporting structure and the non-woven fabrics that is covered in the supporting structure outside surface, described each filter assemblies (6) top all is connected to out on the water pump (4) by rising pipe (9), and described rising pipe communicates with the cavity of filter assemblies; Described reaction tank bottom is provided with water-in.
2. biofilm reactor according to claim 1 is characterized in that, described reaction tank (7) bottom is provided with draw-in groove, and described filter assemblies (6) bottom is stuck in the described draw-in groove, has the gap between the bottom of described filter assemblies (6) and the reaction tank bottom surface.
3. biofilm reactor according to claim 2 is characterized in that, described filter assemblies (6) is a plurality of, and equally spaced being stuck in the described draw-in groove.
4. biofilm reactor according to claim 1, it is characterized in that, described filter assemblies (6) is comprised of the two-layer nonwoven of being located at both sides (61) and the back up pad (62) be located in the middle of the both sides non-woven fabrics, described back up pad (62) is the slab construction that hollow and two sides have permeable hole, and non-woven fabrics (62) is fixed on the outside surface of back up pad and covers permeable hole on the back up pad fully; The hollow cavity of described back up pad forms the cavity of described filter assemblies.
5. biofilm reactor according to claim 1 is characterized in that, described permeable hole is evenly distributed on the two sides of back up pad, and the back up pad two sides are latticed.
6. biofilm reactor according to claim 1 is characterized in that, also comprises pump sump, and described pump sump (1) is connected on the water-in of reaction tank (7) by water inlet pipe (8), and described water inlet pipe is provided with intake pump (2) and water intaking valve (3).
7. biofilm reactor according to claim 1 is characterized in that, described rising pipe is provided with vacuum pressure gauge (5).
8. biofilm reactor according to claim 1 is characterized in that, described reaction tank (7) is made by synthetic glass is bonding, for packing less rectangular-shaped, and its outside surface parcel light shield layer.
9. the biological denitrification method of a novel Anammox biofilm reactor claimed in claim 1 is characterized in that, comprises the steps:
Step 1 is communicated with by the water inlet road water-in of biofilm reactor, and at water inlet pipe intake pump is set with pending sewage;
Step 2 is thrown in the seed sludge that comprises anaerobic ammonium oxidizing bacteria in biofilm reactor; Water inlet pipe is connected treatment sewage;
Step 3 is opened intake pump (2), and sewage enters the reaction tank (7) from water-in through intake pump (2) suction;
Step 4, when treating that liquid level is higher than the filter assemblies top, open out water pump (4), the inner vacuum that forms of filter assemblies, thereby mineralization pressure is poor between the outside of the non-woven fabrics of filter assemblies and inside, sewage is done transmembrane movement through non-woven fabrics under the effect of the inside and outside pressure difference that forms of filter assemblies (6), extracted out continuously by the rising pipe on filter assemblies top and form water outlet.
10. the biological denitrification method of biofilm reactor according to claim 9 is characterized in that, described anaerobic ammonium oxidizing bacteria is
Brocadia
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Cited By (3)
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| CN105236568A (en) * | 2015-08-07 | 2016-01-13 | 北京大学 | Method for running anammox by utilizing microbial immobilization membrane bioreactor |
| CN113072179A (en) * | 2021-03-12 | 2021-07-06 | 中山大学 | Sewage nitrogen and phosphorus removal device and method thereof |
| CN118439725A (en) * | 2024-07-08 | 2024-08-06 | 陕西安联晟环保科技有限公司 | Upflow anaerobic ammonia oxidation biomembrane reaction device |
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| CN1480408A (en) * | 2003-07-18 | 2004-03-10 | 浙江大学 | Up-flow type response operator for anaerobic ammoxidation biomembrane |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105236568A (en) * | 2015-08-07 | 2016-01-13 | 北京大学 | Method for running anammox by utilizing microbial immobilization membrane bioreactor |
| CN105236568B (en) * | 2015-08-07 | 2017-06-16 | 北京大学 | A kind of method that Anammox is run using microbial immobilized membrane bioreactor |
| CN113072179A (en) * | 2021-03-12 | 2021-07-06 | 中山大学 | Sewage nitrogen and phosphorus removal device and method thereof |
| CN118439725A (en) * | 2024-07-08 | 2024-08-06 | 陕西安联晟环保科技有限公司 | Upflow anaerobic ammonia oxidation biomembrane reaction device |
| CN118439725B (en) * | 2024-07-08 | 2024-10-01 | 陕西安联晟环保科技有限公司 | Upflow anaerobic ammonia oxidation biomembrane reaction device |
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