CN105271514A - Biological nitrogen removal method based on anaerobic Feammox and application thereof - Google Patents
Biological nitrogen removal method based on anaerobic Feammox and application thereof Download PDFInfo
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Abstract
The invention discloses a biological nitrogen removal method based on anaerobic Feammox and application thereof. The biological nitrogen removal method comprises the following steps that sludge containing Feammox microorganisms is added into an anaerobic reactor, ammonia containing wastewater is led into the reactor, NH4 + in the Fe (III) NTA oxidized wastewater is utilized to generate NO2-, and then nitrogen treatment is performed. The biological nitrogen removal method comprises the specific steps that 1, the Feammox enriched microorganisms are cultivated: the sludge is pretreated and the Feammox microorganisms are cultivated; 2, the Feammox microorganisms are utilized to perform wastewater treatment; 3, nitrogen removal treatment is performed by using the liquid collected after anaerobic Feammox treatment. The method has the advantages of lower power consumption, few carbon source demands, less greenhouse gas emissions, less produced NO3- and the like, is lower in investment and operating costs and wide in application prospect.
Description
Technical field
The invention belongs to technical field of sewage, be specifically related to a kind ofly utilize the method for ammonia and the application in sewage water denitrification thereof in anaerobic ferrite oxidization ammonia treatment sewage.
Background technology
NH can be realized at present in sewage disposal
4 +the microbial process of oxidation is mainly aerobic ammonia oxidation and Anammox.Although traditional aerobic ammonia oxidation process widespread use in sewage disposal, this technique needs to pass into oxygen from outside can test NH
4 +oxidation, simultaneously in aerobic ammonia oxidation system, there is oxygen and product NO
2 -, therefore usually can there is NOB in system by NO
2 -be oxidized to NO
3 -, then can by NO through denitrification process
3 -be reduced to N
2realize NH
4 +removal, therefore traditional nitration denitrification technique needs additional O
2, organism, simultaneously sludge yield is high.Although anaerobic ammonium oxidation process can under anaerobic by NH
4 +oxidation, but need to provide NO
2 -realize NH
4 +oxidation, therefore this technique need and aerobic ammonia oxidation process combine and could realize NH
4 +oxidation.
Iron is the one of transition metal, and it is the metallic element that earth's crust content second is high.The redox reaction of Fe and C, O, N, S drives the biochemical cycle in the whole world.Microorganism alienation Fe (III) reduction is an important biology and geochemical process, not only the distribution of iron and mineralogy form are had an impact, and because microorganism alienation Fe (III) reduction process has been coupled organic oxidative degradation, be applied to biological metallurgy, heavy metal (uranium gradually, chromium, arsenic etc.) biological restoration of contaminate environment and the biological degradation of petrochemical industry class organic sewage.Fe also plays a role in the chemistry containing N material and microbiological oxidation reduction process, comprises greenhouse gases N
2the generation of O.The microorganism that occurring in nature can carry out Fe (III) Fe3+ reduction is various from archeobacteria to bacterial species.But the biological chemical performance that current microorganism Fe (III) is reduced is still newer research field.
Current research finds that ubiquity can realize under anaerobic relying on the phenomenon that Fe (III) is oxidized NH4+ in the environment such as rice field, settling, Freshwater ecosystems, this phenomenon is called as Feammox (Fe forms ammonia), find the document of Feammox phenomenon as: 1) in fluvial deposit: Clement etc. (Ammoniumoxidationcoupledtodissimilatoryreductionofironun deranaerobicconditionsinwetlandsoils, 2005); 2) Wetlands ecosystems: Shrestha etc. (OxidationofAmmoniumtoNitriteUnderIron-ReducingConditions inWetlandSoilsLaboratory, FieldDemonstrations, andPush-PullRateDetermination, 2009); 3) mountain soil: Yang etc. (Nitrogenlossfromsoilthroughanaerobicammoniumoxidationcou pledtoironreduction, 2012); 4) meadow, riverbank: HuangandJaffe etc. (Characterizationofincubationexperimentsanddevelopmentofa nenrichmentculturecapableofammoniumoxidationunderiron-re ducingconditions, 2015); 5) anaerobically digested sludge: Sawayama etc. (Possibilityofanoxicferricammoniumoxidation.JournalofBios cienceandBioengineering, 2006); 6) paddy soil: Ding etc. (NitrogenLossthroughAnaerobicAmmoniumOxidationCoupledtoIr onReductionfromPaddySoilsinaChronosequence, 2014); 7) freshwater lake settling: Melton etc. (Microbialiron (II) oxidationinlittoralfreshwaterlakesediment:thepotentialfo rcompetitionbetweenphototrophicvs.nitrate-reducingiron (II)-oxidizers, 2012).Existing research thinks that Feammox reaction principle is as follows
The Jaff é etc. of Princeton university has found Feammox bacterium in the soil on meadow, riverbank, Feammox can be realized, they get pedotheque from scene, utilize in the lab anaerobic reactor by external adding water iron ore or pyrrhosiderite through 180 days enrichment culture Feammox bacterium, but because in ferrihydrite or pyrrhosiderite, the solvability of iron is very low, bioavailability is poor, and concentration effect is not very good.
Feammox microorganism can under anaerobic by NH
4 +be oxidized to NO
2 -, this process is combined with Anammox (Anammox) technique in Sewage treatment systems, just can realize under anaerobic by NH
4 +be converted into N
2process, relative to traditional nitrification-denitrification technique, this coupling technique will have lower energy consumption, less carbon source demand, less greenhouse gas emission (as N
2o), less NO
3 -the advantages such as generation and lower sludge yield.Therefore this reaction is with a wide range of applications in sewage disposal.
Although iron content in ground surface environment, settling is very high, under neutrallty condition, the solubleness of Fe (III) only has 10
-9mol, in most cases in aqueous stratum Fe (III) be all dissolving, insoluble Fe oxides exist.Which limits a large amount of existence of Fe – ammox microorganism, therefore by promoting the content of bioavailability Fe (III), effectively can promote Fe – ammox process, such as by forming soluble chelating iron under the effect of the sequestrants such as NTA (nitrilotriacetic acid(NTA)), EDTA (ethylenediamine tetraacetic acid (EDTA)) and polyphosphate, and be transported to antimicrobial surface by diffusion, thus promote Feammox process.
Summary of the invention
The object of the present invention is to provide a kind of energy consumption low, investment and working cost few, the biological denitrification method based on anaerobic ferrite oxidization ammonia had a extensive future.
Technical scheme of the present invention is as follows: a kind of biological denitrification method based on anaerobic ferrite oxidization ammonia, comprise the steps: in anaerobic reactor, add the mud containing Feammox microorganism, to pass in reactor containing ammonia sewage, utilize the NH in Fe (III) NTA oxidation sewage
4 +generate NO
2 -, then carry out denitrogenation processing, concrete steps are as follows:
One, enrichment Feammox microorganism is cultivated
1) sludge pretreatment: the provenance mud nutrient solution containing Feammox microorganism is mixed to get mud mixture, described nutrient solution is mixed by nutritive medium and trace element solution and is obtained, and its composition and ratio is for adding 1.0 ~ 1.5mL trace element solution in often liter of nutritive medium; Containing 0.16 ~ 0.20mMFe (III) NTA, 2.00 ~ 2.30mMNH in described nutritive medium
4 +and mineral substance;
2) cultivation of Feammox microorganism: by aforementioned mud mixture access anaerobic reactor, first expose to the sun N
2to mud mixture, dissolved oxygen is 0mg/L, then bring into operation reactor, the aforementioned nutrient solution adding described mud mixture half volume runs 180 ~ 240min, then supernatant liquor is discharged after precipitation 15 ~ 25min out of service, precipitation, output is identical with the nutrient solution volume added, and so far completes a treatment cycle; Again in reactor, add the nutrient solution with discharged fluid volume same volume, start a new treatment cycle, so circulated multiple cycle of operation; The operating temperature of reactor is 30 ~ 35 DEG C, and the mud mixture pH in reactor controls 7.0 ~ 8.0; From reactor, discharge reacted mud mixture cumulative volume once a day 1/15th abandons, and then again fills into and the new nutrient solution abandoning liquid and amass same volume; Run 70 ~ 110 days altogether;
Two, the NH in Feammox microorganism treating sewage is utilized
4 +
1) sewage disinfection treatment: pending containing adding 0.16 ~ 0.20mMFe (III) NTA in ammonia sewage, mineral substance dissolves mixing and obtains mixed solution, then add trace element solution in the ratio that often liter of mixed solution adds 1.0 ~ 1.5mL trace element solution and be mixed to get sewage disinfection treatment liquid;
2) mud mixture obtained after aforementioned enrichment culture Feammox microorganism is drained half volume liquid after add in anaerobic reactor and carry out sewage disposal: add in the reactor run 180 ~ 240min, then precipitation 15 ~ 25min out of service with the aforementioned sewage disinfection treatment liquid of mud mixture same volume in reactor, precipitate after discharges and the solution of sewage disinfection treatment liquid phase same volume that adds collect this liquid, so far complete a treatment cycle; Again add in reactor and the sewage disinfection treatment liquid with withdrawal volume same volume, start a new treatment cycle, so namely circulation carries out sewage disposal sustainably; The operating temperature of reactor is 30 ~ 35 DEG C, and the mud mixture pH in reactor controls 7.0 ~ 8.0; In reactor, discharge 1/15th of reacted mud mixture cumulative volume once a day abandon, then again fill into the sewage disinfection treatment liquid with liquid effluent same volume; So far complete the NH in sewage
4 +be converted into NO
2 -process;
Three, the liquid collected after aforementioned anaerobism Feammox process is carried out denitrogenation processing.
As preferably, the concentration of Fe (III) NTA in described nutritive medium is 0.18mM, NH
4 +concentration be 2.15mM, the concentration of Fe (III) NTA in described sewage disinfection treatment liquid is 0.18mM.
As preferably, described Fe (III) NTA is by Fe
2(SO
4)
3with NTA mole to match well by 1:1, described NH
4 +derive from ammonium sulfate or ammonium chloride.
In technique scheme, the mineral component comprised in described nutritive medium and described sewage disinfection treatment liquid and proportioning are: NaH
2pO
40.04 ~ 0.06g/L, CaCl
22H
2o0.2 ~ 0.4g/L, MgSO
47H
2o0.2 ~ 0.4g/L, KHCO
31.0 ~ 1.5g/L, FeSO
40.0060 ~ 0.0065g/L, EDTA0.0060 ~ 0.0065g/L; Described trace element solution comprises the component of following concentration: EDTA13 ~ 17g/L, H
3bO
40.010 ~ 0.016g/L, MnCl
24H
2o0.90 ~ 1.10g/L, CuSO
45H
2o0.20 ~ 0.30g/L, ZnSO
47H
2o0.35 ~ 0.50g/L, NiCl
26H
2o0.15 ~ .025g/L, Na
2seO
410H
2o0.15 ~ 0.26g/L, Na
2moO
42H
2o0.17 ~ 0.27g/L, Na
2wO
42H
2o0.03 ~ 0.07g/L.
As preferably, the mineral component comprised in described nutritive medium and described sewage disinfection treatment liquid and proportioning are: NaH
2pO
40.05g/L, CaCl
22H
2o0.3g/L, MgSO
47H
2o0.3g/L, KHCO
31.25g/L, FeSO
40.00625g/L, EDTA0.00625g/L; Described trace element solution comprises the component of following concentration: EDTA15g/L, H
3bO
40.014g/L, MnCl
24H
2o0.99g/L, CuSO
45H
2o0.25g/L, ZnSO
47H
2o0.43g/L, NiCl
26H
2o0.19g/L, Na
2seO
410H
2o0.21g/L, Na
2moO
42H
2o0.22g/L, Na
2wO
42H
2o0.05g/L.
As preferably, described method of the liquid collected after anaerobism Feammox process being carried out denitrogenation processing is anaerobic ammonia oxidation process process, by the NO in solution
2 -be converted into N
2.
In technique scheme, described anaerobic reactor is sbr reactor device or UASB reactor or EGSB reactor.
As preferably, described trace element solution add-on is: add 1.25mL trace element solution in often liter of nutritive medium, often rises mixed solution and add 1.25mL trace element solution during sewage disinfection treatment.
As preferably, the operating temperature in reactor is 30 ~ 32 DEG C, and the mud mixture pH in reactor controls 7.0 ~ 7.5.
We's ratio juris is utilize Feammox microorganism by the NH in sewage under anaerobic condition
4 +be oxidized to NO
2 -, in conjunction with existing NO
2 -denitrification treatment process, can realize the NH in sewage
4 +be converted into N
2thus realize sewage water denitrification process.
Another object of the present invention is to provide the above-mentioned application of biological denitrification method in sewage water denitrification process based on anaerobic ferrite oxidization ammonia.
The invention has the beneficial effects as follows: compare traditional aerobic ammonia oxidation or Anammox two kinds of techniques, the inventive method can under anaerobic by NH
4 +be oxidized to NO
2 -, follow-uply only need Anammox (Anammox) technique in conjunction with existing maturation just can realize NH
4 +removal, these two technological processs are all anaerobic process, and condition easily controls, and eliminates the O needed in aerobic treatment process
2, provide cost savings; Relative to traditional nitrification-denitrification technique, this coupling technique has lower energy consumption, less carbon source demand, less greenhouse gas emission (as N
2o), less NO
3 -the advantages such as generation.The method energy consumption is low, investment and working cost few, there is good application prospect.
Accompanying drawing explanation
Fig. 1 is that in the embodiment of the present invention, in sbr reactor device, Fe (III) NTA is oxidized NH
4 +process flow sheet; Wherein, 1SBR reactor, 2 hollow sandwiches, 3 water-bath imports, 4 water-bath outlets, 5 water-bath pumps, 6 water-baths, 7 intake pumps, 8 inlet chests, 9 go out water pump, 10 water tanks, 11pH meter, 12 online dissolved oxygen analytic instruments, 13 magnetic stirring apparatuss, 14 production wells.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with technical scheme and accompanying drawing, but the present invention is not only confined to following embodiment.
Fe (III) NTA that the sbr reactor device utilizing the total reaction volume in Fig. 1 to be 3L in laboratory carries out the inventive method is oxidized NH
4 +, provenance mud takes from University Of Chongqing's Zi Huan institute water treatment experiment room Fe forms ammonia (Feammox) mud provenance (deriving from the second pond mud of Chongqing sewage work).Concrete operation step is as follows:
One, enrichment Feammox microorganism is cultivated
(1) sludge pretreatment: the aforementioned provenance mud getting 1000ml, with after nutrient solution flushing mud 3-5 time under condition of nitrogen gas of exposing to the sun continuously, is settled to 2L with nutrient solution and obtains the mud mixture after processing.Described nutrient solution is mixed by nutritive medium and trace element solution and is obtained, and its composition and ratio is for adding 1.25mL trace element solution in often liter of nutritive medium.
In often liter of nutritive medium, each component concentration is: Fe
2(SO
4)
30.036 gram, (NH
4)
2sO
40.14 gram or NH
4cl0.113 gram, NTA0.034 gram, NaH
2pO
40.05g, CaCl
22H
2o0.3g, MgSO
47H
2o0.3g, KHCO
31.25g, FeSO
40.00625g, EDTA0.00625g.
In often liter of trace element solution, each component concentration exists: EDTA15g, H
3bO
40.014g, MnCl
24H
2o0.99g, CuSO
45H
2o0.25g, ZnSO
47H
2o0.43g, NiCl
26H
2o0.19g, Na
2seO
410H
2o0.21g, Na
2moO
42H
2o0.22g, Na
2wO
42H
2o0.050g.
(2) cultivation of Feammox microorganism: carry out spawn culture by the mud mixture of the aforementioned 2L obtained access sbr reactor device 1, the nutrient solution prepared is stored in inlet chest 8, and first expose to the sun N
2be 0mg/L to dissolved oxygen, then bring into operation sbr reactor device 1, a cycle of operation is 240min, stopping stirring precipitation 18min, then water outlet 12min (by going out water pump 9 from pumping the reacted mud mixture of 1L in sbr reactor device 1 to water tank 10) after running 210min (being entered in sbr reactor device 1 from pumping 1L nutrient solution in inlet chest 8 by intake pump 7 in the 12min of beginning), operation 210min under whipped state, so far completing a treatment cycle.Then in inlet chest 8, again pumping 1L nutrient solution by intake pump 7 enters in sbr reactor device 1, starts a new treatment cycle, has so circulated multiple cycle of operation.The operating temperature of reactor is 30 ~ 32 DEG C, and the mud mixture pH in reactor controls 7.0 ~ 7.5, and magnetic stirrer speed is 100 ~ 200rpm.In sbr reactor device 1, discharge the reacted mud mixture of 200ml once a day to abandon, then add the new nutrient solution of 200ml.Run 90 days altogether (many experiments proves that operation all can realize the object of the invention in 70 ~ 110 days), make the Feammox microorganism in mud obtain enrichment, namely the mud obtained can be used for NH in sewage
4 +oxidation.Also inoculation and the cultivation of Feammox microorganism in mud can be carried out with other reactor or miscellaneous equipment.The store method of the mud after enrichment Feammox microorganism is: get the mud that enrichment is good, with described nutrient solution at the N that exposes to the sun continuously
2when wash three times, by the sewage sludge storage after washed in light tight anaerobism vial, add 0.5L Anaerobic culturel liquid and seal, being placed in the refrigerator of 4 DEG C to preserve and can be used as provenance mud and use (usually can preserve 6 months).
Two, the NH in Feammox microorganism treating sewage is utilized
4 +
This step still carries out the NH in Feammox microorganism treating sewage in the sbr reactor device 1 shown in Fig. 1
4 +.If the cultivation enrichment of the Feammox microorganism carried out in miscellaneous equipment, the mud obtained after enrichment culture Feammox microorganism access to be carried out in the anaerobic reactor of sewage disposal.
(1) sewage disinfection treatment: containing 2.15mMNH
4 +treatment sewage in add following proportioning following component obtain sewage disinfection treatment liquid: add Fe in often liter of sewage
2(SO
4)
30.036 gram, NTA0.034 gram, NaH
2pO
40.05g, CaCl
22H
2o0.3g, MgSO
47H
2o0.3g, KHCO
31.25g, FeSO
40.00625g, EDTA0.00625g dissolve mixing, then add the mixing of aforesaid 1.25mL trace element solution in the solution; Sewage disinfection treatment liquid to be stored in inlet chest in sbr reactor device 18 (if the aforementioned same sbr reactor device for cultivating Feammox microorganism, nutrient solution in former inlet chest 8 is discharged and is changed to sewage disinfection treatment liquid), expose to the sun N in inlet chest 8
2be 0mg/L to the dissolved oxygen in sewage, reach anaerobic condition.
(2) from the sbr reactor device 1 after aforementioned enrichment culture Feammox microorganism at the N that exposes to the sun
2when discharge 1L liquid, then starting to carry out sewage disposal: during sewage disposal, each cycle of operation of sbr reactor device 1 is 240min, stopping stirring precipitation 18min, water outlet 12min (by going out water pump 9 from the sewage after pumping 1L process in sbr reactor device 1 to water tank 10) after running 210min (being entered in sbr reactor device 1 from pumping 1L sewage disinfection treatment liquid in inlet chest 8 by intake pump 7 in the 12min of beginning), operation 210min under whipped state; So far a treatment cycle is completed.Then in inlet chest 8, again pumping 1L sewage disinfection treatment liquid by intake pump 7 enters in sbr reactor device 1, starts a new treatment cycle, and so namely circulation carries out sewage disposal sustainably.The operating temperature of reactor is 30 ~ 32 DEG C, and the mud mixture pH in reactor controls 7.0 ~ 7.5, and magnetic stirrer speed is 100 ~ 200rpm.In sbr reactor device 1, discharge the reacted mud mixture of 200ml once a day to abandon, then add the aforesaid sewage disinfection treatment liquid of 200ml.
NH is determined in sewage treatment process
4 +oxidation effectiveness, experiment run 4h continuously, the NH in pending sewage
4 +for 2.15mM, in the test of continuous 4h, NH
4 +average oxidation speed be 156.16mgN/ (Ld), the NO in the water after the process of collecting in water tank 10
2 -average accumulated speed be also 156.16mgN/ (Ld).
Three, the sewage after anaerobism Feammox process carries out Anammox process
Anammox process is carried out in the water outlet of collecting in water tank 10 after aforementioned anaerobic ferrite oxidization ammonia treatment, and anaerobic ammonia oxidation process is existing very ripe technique, is not repeated herein.By anaerobic ammonia oxidation process by the NO in water
2 -be converted into N
2, realize NH in sewage
4 +anaerobism remove.
Through experiment, in the nutritive medium described in the inventive method, sewage disinfection treatment liquid, trace element solution, each component proportion also can realize the inventive method in following scope: the mineral component comprised in described nutritive medium and sewage disinfection treatment liquid: NaH
2pO
40.04 ~ 0.06g/L, CaCl
22H
2o0.2 ~ 0.4g/L, MgSO
47H
2o0.2 ~ 0.4g/L, KHCO
31.0 ~ 1.5g/L, FeSO
40.0060 ~ 0.0065g/L, EDTA0.0060 ~ 0.0065g/L; Fe in described nutritive medium
2(SO
4)
30.032 ~ 0.04 gram, (NH
4)
2sO
40.13 ~ 0.15 gram or NH
4cl0.11 ~ 0.12 gram, NTA0.03 ~ 0.034 gram; Fe in described sewage disinfection treatment liquid
2(SO
4)
30.032 ~ 0.04 gram, NTA0.03 ~ 0.034 gram; Described trace element solution comprises the component of following concentration: EDTA13 ~ 17g/L, H
3bO
40.010 ~ 0.016g/L, MnCl
24H
2o0.90 ~ 1.10g/L, CuSO
45H
2o0.20 ~ 0.30g/L, ZnSO
47H
2o0.35 ~ 0.50g/L, NiCl
26H
2o0.15 ~ .025g/L, Na
2seO
410H
2o0.15 ~ 0.26g/L, Na
2moO
42H
2o0.17 ~ 0.27g/L, Na
2wO
42H
2o0.03 ~ 0.07g/L;
The inventive method achieves the NH in sewage
4 +nO is converted under anaerobism anaerobic condition
2 -, this process is combined with the anaerobic ammonia oxidation process in Sewage treatment systems, realizes under anaerobic by NH
4 +finally be converted into N
2process, relative to traditional nitrification-denitrification technique, this coupling technique will have lower energy consumption, less carbon source demand, less greenhouse gas emission (as N
2o), less NO
3 -the advantages such as generation.
Claims (10)
1. the biological denitrification method based on anaerobic ferrite oxidization ammonia, it is characterized in that, comprise the steps: in anaerobic reactor, add the mud containing Feammox microorganism, will pass in reactor containing ammonia sewage, utilize the NH in Fe (III) NTA oxidation sewage
4 +generate NO
2 -, then carry out denitrogenation processing, concrete steps are as follows:
One, enrichment Feammox microorganism is cultivated
1) sludge pretreatment: the provenance mud nutrient solution containing Feammox microorganism is mixed to get mud mixture, described nutrient solution is mixed by nutritive medium and trace element solution and is obtained, and its composition and ratio is for adding 1.0 ~ 1.5mL trace element solution in often liter of nutritive medium; Containing 0.16 ~ 0.20mMFe (III) NTA, 2.00 ~ 2.30mMNH in described nutritive medium
4 +and mineral substance;
2) cultivation of Feammox microorganism: by aforementioned mud mixture access anaerobic reactor, first expose to the sun N
2to mud mixture, dissolved oxygen is 0mg/L, then bring into operation reactor, the aforementioned nutrient solution adding described mud mixture half volume runs 180 ~ 240min, then supernatant liquor is discharged after precipitation 15 ~ 25min out of service, precipitation, output is identical with the nutrient solution volume added, and so far completes a treatment cycle; Again in reactor, add the nutrient solution with discharged fluid volume same volume, start a new treatment cycle, so circulated multiple cycle of operation; The operating temperature of reactor is 30 ~ 35 DEG C, and the mud mixture pH in reactor controls 7.0 ~ 8.0; From reactor, discharge reacted mud mixture cumulative volume once a day 1/15th abandons, and then again fills into and the new nutrient solution abandoning liquid and amass same volume; Run 70 ~ 110 days altogether;
Two, the NH in Feammox microorganism treating sewage is utilized
4 +
1) sewage disinfection treatment: pending containing adding 0.16 ~ 0.20mMFe (III) NTA in ammonia sewage, mineral substance dissolves mixing and obtains mixed solution, then add trace element solution in the ratio that often liter of mixed solution adds 1.0 ~ 1.5mL trace element solution and be mixed to get sewage disinfection treatment liquid;
2) mud mixture obtained after aforementioned enrichment culture Feammox microorganism is drained half volume liquid after add in anaerobic reactor and carry out sewage disposal: add in the reactor run 180 ~ 240min, then precipitation 15 ~ 25min out of service with the aforementioned sewage disinfection treatment liquid of mud mixture same volume in reactor, precipitate after discharges and the solution of sewage disinfection treatment liquid phase same volume that adds collect this liquid, so far complete a treatment cycle; Again add in reactor and the sewage disinfection treatment liquid with withdrawal volume same volume, start a new treatment cycle, so namely circulation carries out sewage disposal sustainably; The operating temperature of reactor is 30 ~ 35 DEG C, and the mud mixture pH in reactor controls 7.0 ~ 8.0; In reactor, discharge 1/15th of reacted mud mixture cumulative volume once a day abandon, then again fill into the sewage disinfection treatment liquid with liquid effluent same volume; So far complete the NH in sewage
4 +be converted into NO
2-process;
Three, the liquid collected after aforementioned anaerobism Feammox process is carried out denitrogenation processing.
2., as claimed in claim 1 based on the biological denitrification method of anaerobic ferrite oxidization ammonia, it is characterized in that, the concentration of Fe (III) NTA in described nutritive medium is 0.18mM, NH
4 +concentration be 2.15mM, the concentration of Fe (III) NTA in described sewage disinfection treatment liquid is 0.18mM.
3., as claimed in claim 1 based on the biological denitrification method of anaerobic ferrite oxidization ammonia, it is characterized in that, described Fe (III) NTA is by Fe
2(SO
4)
3with NTA mole to match well by 1:1, described NH
4 +derive from ammonium sulfate or ammonium chloride.
4. as claimed in claim 1 based on the biological denitrification method of anaerobic ferrite oxidization ammonia, it is characterized in that, the mineral component comprised in described nutritive medium and described sewage disinfection treatment liquid and proportioning are: NaH
2pO
40.04 ~ 0.06g/L, CaCl
22H
2o0.2 ~ 0.4g/L, MgSO
47H
2o0.2 ~ 0.4g/L, KHCO
31.0 ~ 1.5g/L, FeSO
40.0060 ~ 0.0065g/L, EDTA0.0060 ~ 0.0065g/L; Described trace element solution comprises the component of following concentration: EDTA13 ~ 17g/L, H
3bO
40.010 ~ 0.016g/L, MnCl
24H
2o0.90 ~ 1.10g/L, CuSO
45H
2o0.20 ~ 0.30g/L, ZnSO
47H
2o0.35 ~ 0.50g/L, NiCl
26H
2o0.15 ~ .025g/L, Na
2seO
410H
2o0.15 ~ 0.26g/L, Na
2moO
42H
2o0.17 ~ 0.27g/L, Na
2wO
42H
2o0.03 ~ 0.07g/L.
5. as claimed in claim 4 based on the biological denitrification method of anaerobic ferrite oxidization ammonia, it is characterized in that, the mineral component comprised in described nutritive medium and described sewage disinfection treatment liquid and proportioning are: NaH
2pO
40.05g/L, CaCl
22H
2o0.3g/L, MgSO
47H
2o0.3g/L, KHCO
31.25g/L, FeSO
40.00625g/L, EDTA0.00625g/L; Described trace element solution comprises the component of following concentration: EDTA15g/L, H
3bO
40.014g/L, MnCl
24H
2o0.99g/L, CuSO
45H
2o0.25g/L, ZnSO
47H
2o0.43g/L, NiCl
26H
2o0.19g/L, Na
2seO
410H
2o0.21g/L, Na
2moO
42H
2o0.22g/L, Na
2wO
42H
2o0.05g/L.
6., as claimed in claim 1 based on the biological denitrification method of anaerobic ferrite oxidization ammonia, it is characterized in that, described method of the liquid collected after anaerobism Feammox process being carried out denitrogenation processing is anaerobic ammonia oxidation process process, by the NO in solution
2 -be converted into N
2.
7. as claimed in claim 1 based on the biological denitrification method of anaerobic ferrite oxidization ammonia, it is characterized in that, described anaerobic reactor is sbr reactor device or UASB reactor or EGSB reactor.
8. as claimed in claim 1 based on the biological denitrification method of anaerobic ferrite oxidization ammonia, it is characterized in that, described trace element solution add-on is: add 1.25mL trace element solution in often liter of nutritive medium, often rises mixed solution and add 1.25mL trace element solution during sewage disinfection treatment.
9., as claimed in claim 1 based on the biological denitrification method of anaerobic ferrite oxidization ammonia, it is characterized in that, the operating temperature in reactor is 30 ~ 32 DEG C, and the mud mixture pH in reactor controls 7.0 ~ 7.5.
10. the application of biological denitrification method in sewage water denitrification process based on anaerobic ferrite oxidization ammonia according to any one of claim 1 to 8.
Priority Applications (1)
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Cited By (16)
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| CN105923764A (en) * | 2016-06-27 | 2016-09-07 | 南京大学 | Method for quickly starting anaerobic ammonia oxidation technology by manganese dioxide |
| CN105948280A (en) * | 2016-07-22 | 2016-09-21 | 中国环境科学研究院 | Anaerobic biological oxidation water pollution remediation method with Fe3+ in hematite as electron acceptor |
| CN107555616A (en) * | 2017-10-31 | 2018-01-09 | 苏州科技大学 | A kind of method that ammonia nitrogen and nitrate nitrogen synchronously remove in water body |
| WO2018011242A1 (en) * | 2016-07-14 | 2018-01-18 | Basf Se | Fermentation medium comprising chelating agent |
| CN107973495A (en) * | 2017-12-29 | 2018-05-01 | 中国科学院南京地理与湖泊研究所 | The apparatus and method that multistage up-flow surface water body nitrogen and organic matter synchronously remove |
| CN107973496A (en) * | 2017-12-29 | 2018-05-01 | 中国科学院南京地理与湖泊研究所 | The apparatus and method that ammonia anaerobic oxidation is realized based on up-flow fixed bed reactors |
| CN109650536A (en) * | 2019-01-03 | 2019-04-19 | 大连理工大学 | The device and method of ammonia nitrogen anaerobism in-situ treatment based on ferrikinetics driving |
| CN111943444A (en) * | 2020-08-19 | 2020-11-17 | 苏州科技大学 | Sewage treatment device and method for enhancing municipal sewage autotrophic nitrogen removal and synchronous phosphorus recovery |
| CN112777736A (en) * | 2020-12-16 | 2021-05-11 | 中海油天津化工研究设计院有限公司 | Anaerobic nitrification method |
| CN112897835A (en) * | 2021-02-23 | 2021-06-04 | 沈阳建筑大学 | Preparation device and domestication method for domesticating anaerobic digestion sludge into Feammox functional sludge |
| CN113415910A (en) * | 2021-06-04 | 2021-09-21 | 北京工业大学 | Device and method for denitrification coupling anaerobic ammonium oxidation biological nitrogen and phosphorus removal in iron ammonium oxidation enhanced AAO process |
| CN113912179A (en) * | 2021-10-15 | 2022-01-11 | 北京工业大学 | Rapid culture method for anaerobic ferric salt oxidized ammonia nitrogen and synchronous denitrification sludge |
| US20220032349A1 (en) * | 2018-09-27 | 2022-02-03 | The Trustees Of Princeton University | Feammox activity in bioelectrochemical reactors |
| CN115124142A (en) * | 2022-07-28 | 2022-09-30 | 兰州资源环境职业技术大学 | Device for removing nitrogen in sewage by utilizing ferric ammonium oxidation and denitrification process |
| CN116040787A (en) * | 2023-01-12 | 2023-05-02 | 郑州轻工业大学 | Bioelectrochemistry constructed wetland system and application thereof |
| CN116218640A (en) * | 2023-02-28 | 2023-06-06 | 乐山师范学院 | Device for domesticating concentrated sludge into Feamox flora |
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| CN105923764A (en) * | 2016-06-27 | 2016-09-07 | 南京大学 | Method for quickly starting anaerobic ammonia oxidation technology by manganese dioxide |
| WO2018011242A1 (en) * | 2016-07-14 | 2018-01-18 | Basf Se | Fermentation medium comprising chelating agent |
| CN105948280A (en) * | 2016-07-22 | 2016-09-21 | 中国环境科学研究院 | Anaerobic biological oxidation water pollution remediation method with Fe3+ in hematite as electron acceptor |
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| CN107973495A (en) * | 2017-12-29 | 2018-05-01 | 中国科学院南京地理与湖泊研究所 | The apparatus and method that multistage up-flow surface water body nitrogen and organic matter synchronously remove |
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| US20220032349A1 (en) * | 2018-09-27 | 2022-02-03 | The Trustees Of Princeton University | Feammox activity in bioelectrochemical reactors |
| US11807563B2 (en) * | 2018-09-27 | 2023-11-07 | The Trustees Of Princeton University | Feammox activity in bioelectrochemical reactors |
| CN109650536A (en) * | 2019-01-03 | 2019-04-19 | 大连理工大学 | The device and method of ammonia nitrogen anaerobism in-situ treatment based on ferrikinetics driving |
| CN111943444A (en) * | 2020-08-19 | 2020-11-17 | 苏州科技大学 | Sewage treatment device and method for enhancing municipal sewage autotrophic nitrogen removal and synchronous phosphorus recovery |
| CN111943444B (en) * | 2020-08-19 | 2021-11-23 | 苏州科技大学 | Sewage treatment device and method for enhancing municipal sewage autotrophic nitrogen removal and synchronous phosphorus recovery |
| CN112777736A (en) * | 2020-12-16 | 2021-05-11 | 中海油天津化工研究设计院有限公司 | Anaerobic nitrification method |
| CN112897835A (en) * | 2021-02-23 | 2021-06-04 | 沈阳建筑大学 | Preparation device and domestication method for domesticating anaerobic digestion sludge into Feammox functional sludge |
| CN112897835B (en) * | 2021-02-23 | 2023-08-25 | 沈阳建筑大学 | Preparation device and domestication method for domesticating anaerobic digested sludge into Feamox functional sludge |
| CN113415910B (en) * | 2021-06-04 | 2023-01-13 | 北京工业大学 | Device and method for denitrification coupling anaerobic ammonium oxidation biological nitrogen and phosphorus removal in iron ammonium oxidation enhanced AAO process |
| CN113415910A (en) * | 2021-06-04 | 2021-09-21 | 北京工业大学 | Device and method for denitrification coupling anaerobic ammonium oxidation biological nitrogen and phosphorus removal in iron ammonium oxidation enhanced AAO process |
| CN113912179A (en) * | 2021-10-15 | 2022-01-11 | 北京工业大学 | Rapid culture method for anaerobic ferric salt oxidized ammonia nitrogen and synchronous denitrification sludge |
| CN113912179B (en) * | 2021-10-15 | 2023-09-29 | 北京工业大学 | Rapid culture method for anaerobic ferric salt oxidized ammonia nitrogen and synchronous denitrification sludge |
| CN115124142A (en) * | 2022-07-28 | 2022-09-30 | 兰州资源环境职业技术大学 | Device for removing nitrogen in sewage by utilizing ferric ammonium oxidation and denitrification process |
| CN116040787A (en) * | 2023-01-12 | 2023-05-02 | 郑州轻工业大学 | Bioelectrochemistry constructed wetland system and application thereof |
| CN116040787B (en) * | 2023-01-12 | 2023-08-08 | 郑州轻工业大学 | Bioelectrochemistry constructed wetland system and application thereof |
| CN116218640A (en) * | 2023-02-28 | 2023-06-06 | 乐山师范学院 | Device for domesticating concentrated sludge into Feamox flora |
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