CN102219299A - Wastewater anaerobic oxidation and negative oxygen ion coupled generation device and method - Google Patents
Wastewater anaerobic oxidation and negative oxygen ion coupled generation device and method Download PDFInfo
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- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 86
- 230000003647 oxidation Effects 0.000 title claims abstract description 82
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 75
- 239000001301 oxygen Substances 0.000 title claims abstract description 75
- 239000002351 wastewater Substances 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 30
- -1 oxygen ions Chemical class 0.000 claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000010168 coupling process Methods 0.000 claims abstract description 29
- 230000008878 coupling Effects 0.000 claims abstract description 28
- 238000005859 coupling reaction Methods 0.000 claims abstract description 28
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 27
- 229910052799 carbon Inorganic materials 0.000 claims description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 230000004087 circulation Effects 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 239000003344 environmental pollutant Substances 0.000 claims description 7
- 231100000719 pollutant Toxicity 0.000 claims description 7
- 238000004065 wastewater treatment Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
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- 230000000813 microbial effect Effects 0.000 claims 1
- 239000010865 sewage Substances 0.000 abstract description 9
- 230000009467 reduction Effects 0.000 abstract description 3
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- 230000008901 benefit Effects 0.000 abstract description 2
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- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000010842 industrial wastewater Substances 0.000 abstract 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 20
- 244000005700 microbiome Species 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 239000010815 organic waste Substances 0.000 description 9
- 238000005273 aeration Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- 239000011521 glass Substances 0.000 description 8
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 6
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 5
- 239000002551 biofuel Substances 0.000 description 5
- 239000006227 byproduct Substances 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 5
- 229910002651 NO3 Inorganic materials 0.000 description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000011573 trace mineral Substances 0.000 description 4
- 235000013619 trace mineral Nutrition 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
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- 239000000149 chemical water pollutant Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000002572 peristaltic effect Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
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- 241001495394 Nitrosospira Species 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 241000605118 Thiobacillus Species 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
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- 238000012546 transfer Methods 0.000 description 2
- 241000605272 Acidithiobacillus thiooxidans Species 0.000 description 1
- 241000607534 Aeromonas Species 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 241001112741 Bacillaceae Species 0.000 description 1
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 241000193764 Brevibacillus brevis Species 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 241000589519 Comamonas Species 0.000 description 1
- 229910021591 Copper(I) chloride Inorganic materials 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
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000588748 Klebsiella Species 0.000 description 1
- 241000203578 Microbispora Species 0.000 description 1
- 241000605159 Nitrobacter Species 0.000 description 1
- 241000192147 Nitrosococcus Species 0.000 description 1
- 241000589516 Pseudomonas Species 0.000 description 1
- 241000190932 Rhodopseudomonas Species 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 241000205091 Sulfolobus solfataricus Species 0.000 description 1
- 241001509286 Thiobacillus denitrificans Species 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
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- 229940040526 anhydrous sodium acetate Drugs 0.000 description 1
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- 230000017531 blood circulation Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- Y02W10/12—
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
本发明属于环境保护、污水处理技术领域，具体涉及一种废水厌氧氧化与负氧离子偶联发生装置及方法。本发明废水厌氧氧化与负氧离子偶联发生的装置，包括一个用于废水厌氧氧化的反应器（1），该反应器器壁（2）由导电材料制作，反应器内填充导电材料作为生物载体（3），下部进水口（4），上部出水口（5）。本发明废水厌氧氧化与负氧离子偶联发生装置及其方法可广泛应用于各类工业废水、生活废水的处理。具有操作简单，节约能耗，减轻空气污染等优点。
The invention belongs to the technical fields of environmental protection and sewage treatment, and in particular relates to a device and method for anaerobic oxidation of waste water and coupling generation of negative oxygen ions. The device for coupling generation of wastewater anaerobic oxidation and negative oxygen ions of the present invention includes a reactor (1) for wastewater anaerobic oxidation, the reactor wall (2) is made of conductive material, and the reactor is filled with conductive material As biological carrier (3), lower water inlet (4), upper water outlet (5). The waste water anaerobic oxidation and negative oxygen ion coupling generating device and method thereof of the present invention can be widely used in the treatment of various industrial waste water and domestic waste water. It has the advantages of simple operation, energy saving and air pollution reduction.
Description
Technical field
The invention belongs to environment protection, technical field of sewage, be specifically related to a kind of anaerobic waste water oxidation and negative oxygen ion coupling generating unit and method.
Background technology
In industrial and agricultural production and the people's lives process, all can discharge a large amount of waste water that contains inorganic reduction contact scar things such as various organic pollutants and ammonia nitrogen.Except the part high concentrated organic wastewater was handled by biomass energy modes such as fermentation product methane, it was carbonic acid gas, water or nontoxic oxidation state material that a large amount of organic wastewater with medium-low concentration or inorganic wastewater all need by aerobic oxidation.These treatment processs need blast aeration, blodisc etc. to provide a large amount of oxygen as electron acceptor(EA), and with the reducing substances in the oxidized waste water, the oxygen supply expense accounts for a greater part of of biological wastewater treatment cost.
Since the nineties in last century, the fast development of biofuel cell (MFC) technology, but because MFC not only can handle waste water but also electrogenesis, become the focus of international bioenergy area research.At present, obtained major progress in research fields such as electrogenesis microorganism, the transmission of born of the same parents' exoelectron, battery structure, electrode materialss, the electronics rate of recovery of organic carbon up to 96.8% (AEM, 2003,69,1548-1555).In order further to reduce energy consumption, to optimize structure of reactor, obtained scholars' attention based on the single chamber biofuel cell of air cathode, China's publication (200910153236.8) has been described the making method of the air cathode of non-metal catalyst, can reduce the battery cost.China's publication (200510079759.4) has been described the air cathode fuel cell structure respectively with (200810063876.5) and in the application of handling aspects such as waste water and electrogenesis.But air cathode makes complexity mostly, need to carry materials such as noble metal catalyst such as platinum and proton exchange membrane, is difficult to make the large-sized battery structure.In addition, because microbiological fuel cell being restricted of aspects such as electric current collection, electron transport, makes this technology be difficult to mass-producing uses.Except organic carbon as the MFC electron donor, ammonia nitrogen also is not used in MFC electrogenesis research field, the removal of these pollutents still relies on conventional treatment method.
Negative oxygen ion is to catch the electronegative ion that forms behind the unbound electron by airborne oxygen, negative oxygen ion produces positive influence by neural system and blood circulation to HUMAN HEALTH, simultaneously the pollution substance in the atmosphere such as oxynitride, oxysulfide is had reductive action.Pollutents such as the airborne smog of municipal pollution, dust, germ, vehicle exhaust all can be adsorbed and sedimentation by negative oxygen ion.At present, artificially produce negative oxygen ion mainly by high-voltage electric field, utilize the most advanced and sophisticated corona discharge of carbon brush, a large amount of electronics are caught the formation negative oxygen ion by oxygen.All there are the shortcoming that consumes a large amount of energy in the patent disclosure that existing a large amount of negative oxygen ions take place in this field, related products in a large number in market sale in these technology.
Existing biological wastewater treatment still be unable to do without to be forced power consumption means such as aeration, exploitation do not need the biologic treating technique of energy consumption and a large amount of negative oxygen ions of coupling by-product for energy-saving and emission-reduction and alleviate urban air pollution, the quality of life that improves the resident is significant.
Summary of the invention
Need aeration to expend the problem of a large amount of energy in order to solve existing waste water aerobic biological treatment, and existing biofuel cell the invention provides a kind of anaerobic waste water oxidation of bioelectrochemistry mediation and the devices and methods therefor that the negative oxygen ion coupling takes place owing to structure, materials limitations are difficult to amplify, low C/N faces technical problems such as organic carbon wretched insufficiency than ammonia nitrogen waste water denitrogenation.Significantly reducing when guaranteeing the waste water complete oxidation does not even need energy consumption, and the electronics that the reductive pollutants oxidation produces in the waste water finally passes to oxygen and a large amount of negative oxygen ions of by-product.The present invention can be widely used in all types of industries waste water, sanitary wastewater process field.
To achieve the above object of the invention, the present invention has taked following technical scheme:
The invention provides the device that a kind of anaerobic waste water oxidation and negative oxygen ion coupling take place, it comprises a reactor (1) that is used for the anaerobic waste water oxidation, this wall of reactor (2) is made by electro-conductive material, fills gac or electro-conductive materials such as carbon felt or wire cloth in the reactor as bio-carrier (3).Reactor also comprises lower water inlet (4), top water outlet (5), outer circulating tube (6) and recycle pump (7).
The electro-conductive material of filling in the device that a kind of anaerobic waste water oxidation of the present invention and negative oxygen ion coupling take place, anaerobic oxidation reactor (1) links to each other with the wall as electrical conductor.
Metallic conduction materials such as the iron that the device that a kind of anaerobic waste water oxidation of the present invention and negative oxygen ion coupling take place, its anaerobic oxidation reactor wall (2) can include but not limited to conduct electricity, aluminium, copper, carbon materialses such as graphite, materials such as conductivity ceramics are made.
The device that a kind of anaerobic waste water oxidation of the present invention and negative oxygen ion coupling take place, but the carbon materialses such as reactor wall surface graphite spraying of its anaerobic oxidation reactor conduction, also can spray conducting polymer composite such as polyaniline.
The device that a kind of anaerobic waste water oxidation of the present invention and negative oxygen ion coupling take place, electro-conductive material in its anaerobic oxidation reactor includes, but are not limited to metallic conduction materials such as carbon materialses such as carbon fibre materials such as carbon felt, carbon paper, carbon cloth, gac, iron, aluminium, copper wire gauze.
The device that a kind of anaerobic waste water oxidation of the present invention and negative oxygen ion coupling take place, its anaerobic oxidation reactor be also rectangular configuration of cylindrical structural both.
The method that a kind of anaerobic waste water oxidation provided by the invention and negative oxygen ion coupling take place is mainly utilized the bioelectrochemistry approach, by electron transport the outer oxygen reduction of reductive pollutants oxidation and reactor wall in the waste water is carried out coupling, and generates negative oxygen ion.Waste water enters the anaerobic oxidation bio-reactor by water-in, attached to the microorganism species on the electro-conductive material reductive pollutants in the waste water is carried out anaerobic oxidation in the anaerobic oxidation reactor, the electronics that oxidation produces is diffused in the air by electro-conductive material, conductive reaction wall, and caught the formation negative oxygen ion by oxygen, the reductive pollutants in the waste water is discharged after oxidation.In the anaerobic oxidation process, waste water is circulated, to strengthen contacting of waste water and microorganism species by external circulation line and recycle pump.
The method that a kind of anaerobic waste water oxidation of the present invention and negative oxygen ion coupling take place, at different waste water, the waste water in the reactor can be set the circulation or the two kinds of operation scheme that do not circulate.
A kind of anaerobic waste water oxidation of the present invention and negative oxygen ion coupling method for generation, according to the wastewater source difference, the microorganism species of the anaerobic oxidation that adheres in the reactor is also different, and microorganism species includes but not limited to heterotrophic microorganism flora, autotrophic microorganism flora etc.
Heterotrophic microorganism flora of the present invention include but not limited to Rhodopseudomonas, Klebsiella, Alkaligenes, bacillus, bacillus brevis genus, Aeromonas, Comamonas, the arbitrary combination of one or more kinds of Bacillaceae, western Waksmania etc.
Autotrophic microorganism flora of the present invention includes but not limited to bacterium in ammonia oxidation flora such as Nitromonas, Nitrosococcus, Nitrosospira and Nitrosolobus, Nitrobacter, the Nitraspira etc.; Autotrophy thiobacillus group such as thiobacillus ferrooxidant genus, thiobacillus thiooxidans genus, thiobacillus denitrificans genus etc.; And the arbitrary combination of one or more kinds in some facultative autotrophic microorganism species such as pseudomonas, the sulfolobus solfataricus etc.
Compare with traditional wastewater treatment and biofuel cell technology, the present invention has following advantage:
(1) utilize the bioelectrochemistry approach, the electron transport that reductive pollutants oxidation in the anaerobic oxidation reactor is produced and is caught the generation negative oxygen ion by oxygen in the wall outer air.Oxidising process does not need energy consumption, and the energy of containing in the waste water (electronics) is used for the by-product negative oxygen ion.
(2) being used for technology such as electrogenesis, auxiliary product hydrogen with biofuel cell (MFC) compares, this devices and methods therefor need not compile electric current, but adopt the conductive reaction wall that stroke is the shortest, transmission area is maximum, resistance is minimum to carry out electron transport, guaranteed the high-level efficiency of reactor electron transport.
(3) tradition nitrated-denitrification process compares, this devices and methods therefor can be in anaerobic environment, realize ammonia nitrogen simultaneously nitrated with/denitrification, do not need extra electron donor.
(4) this devices and methods therefor operation operation is simple, and condition is controlled easily, and a large amount of negative oxygen ions of its by-product in wastewater treatment process will significantly alleviate regional air and pollute.
A kind of anaerobic waste water oxidation provided by the invention can be widely used in all types of industries waste water, the sanitary wastewater that existing aerobic biological process for treating is handled with negative oxygen ion coupling generating unit and method thereof.Significantly reduce when having the treatment process energy consumption now, a large amount of negative oxygen ions of by-product pollute thereby alleviate regional air, form large-scale oxygen bar, city.
Description of drawings
Fig. 1 is anaerobic waste water oxidation and negative oxygen ion coupling generating unit structural representation, and wherein: A is the device stereographic map, and B is a cross-sectional view, (1) bio-reactor; (2) bio-reactor wall; (3) bio-carrier; (4) lower water inlet; (5) top water outlet; (6) outer circulating tube; (7) recycle pump.
Fig. 2 is used for the synthetic glass cabinet synoptic diagram that negative oxygen ion detects, wherein: (1) negative oxygen ion detecting box; (2) anaerobic oxidation reactor; (3) inlet mouth; (4) reactor outer circulation pump; (5) air outlet.
Embodiment
Further describe the present invention below in conjunction with the drawings and specific embodiments.
Embodiment 1: anaerobic oxidation and the negative oxygen ion of manually preparing organic waste water produce
(1) Zhuan Zhi structure
Anaerobic waste water oxidation that present embodiment makes up and negative oxygen ion coupling generating unit and method thereof such as flow process are shown in Figure 1, mainly comprise an anaerobic waste water oxidation reactor (1), this reactor is a cylindrical reactor, high 200mm, external diameter 76mm, wall thickness 1mm, cubic capacity is 0.8L, and wall of reactor (2) is electro-conductive material a---stainless steel cylinder, fills activated carbon granule in the reactor as bio-carrier (3), activated carbon granule diameter＜5mm, the about 689.4kgm of unit weight
-3, specific surface is 1000m
2/ g, packing fraction is 50%, anaerobic oxidation reactor useful volume 600mL.Reactor also comprises lower water inlet (4), the top water outlet of being made by φ 9mm stainless steel tube (5), and outer circulating tube connects (6) by rubber hose, and peristaltic pump is as outer circulation pump (7).
(2) manually prepare organic waste water
Artificial preparation organic waste water nutrient media components:
NH
4Cl 0.25g/L, KCl 0.1g/L, Na
2HPO
410.9235g/L, NaH
2PO
43.0422g/L, trace element solution 1mL/L, anhydrous sodium acetate 0.5-3g/L.
The trace element solution component:
FeSO
4.7H
2O?1g/L，ZnCl
20.07g/L，MnCl
2.4H2O?0.1g/L，H
3BO
30.006g/L，CaCl
2.6H
2O0.13g/L，CuCl
2.2H
2O?0.002g/L，NiCl
2.6H
2O?0.024g/L，Na
2MO
4.2H
2O?0.036g/L，CoCl.6H
2O0.238g/L。
(3) Zhuan Zhi startup
The organic waste water of preparation 600mL COD1600mg/L charges into anaerobic oxidation reactor 1, and in reactor, insert active sludge in the sewage disposal plant aeration tank, start aeration earlier and carry out the aerobic oxidation reaction, replenish fresh organic waste water by changing water between incubation period, when COD oxidation load reaches 0.5kg COD/m
3.d after, the device aerobic oxidation starts to be finished.After installing aerobic startup end, transfer the anaerobism operation to, charge into preparation organic waste water equally, be sealed into the mouth of a river then, timing acquiring water sample analysis waste water COD degraded situation is looked COD degraded situation and is regularly changed fresh wastewater, reaches 0.3kg COD/m until anaerobic oxidation organic waste water COD load
3.d after, the device anaerobism starts to be finished.
(4) Zhuan Zhi continuous operation
After the device anaerobism starts end, intake volumetric loading at 0.3-0.5kgCOD/m by peristaltic pump flow rate control reactor
3.d between, to anaerobic oxidation reactor (1), by attached to the microorganism species on the absorbent charcoal carrier organic pollutant being carried out the anaerobic oxidation reaction in the reactor, the waste water after the oxidation is discharged through rising pipe (5) from water-in (4) input organic waste water.In the anaerobic oxidation reaction process, carry out outer circulation with the stirring in the enhancing reactor by outer circulation pipeline (6) and recycle pump (7) to handling waste water, cycle rate is 500mL/h.The electronics that the organic carbon anaerobic oxidation produces in the reactor is transmitted to reactor by reactor wall and forms negative oxygen ion outward.
Regularly detect the COD content of anaerobic oxidation reactor (1) rising pipe (5) water outlet, device steady running 60 days during this period, detects effluent COD concentration between 50-80mg/L.
(5) detection of negative oxygen ion
The detection of negative oxygen ion is carried out under reactor batch running environment, designs a synthetic glass case that has inlet mouth and an air outlet (29.8mm * 248mm * 428mm) as negative oxygen ion detecting box (1), detecting box cubic capacity 31L (see figure 2).The anaerobic reactor (2) that adds the fresh organic waste water of 600ml is placed in the detecting box, and outer circulating tube is connected with peristaltic pump (4) by inlet mouth (3) and circulates, and cycle rate is the same.Adopt the negative oxygen ion in the AIC-1000 air ion counter detection synthetic glass cabinet before the experiment beginning, by the mode of aeration pump from the inlet mouth ventilation, (5) detect negative oxygen ion in the air outlet, are sealed into production well then.Feed fresh air from inlet mouth behind the 24h, detect the airborne negative oxygen ion of gas port, with the initial detecting data of air outlet as the negative oxygen ion data in the synthetic glass cabinet.
The result shows that under laboratory relative air humidity 50% environment, the room air negative oxygen ion is at 50-490/cm
3Between, through the reactor operation of 24h, air negative oxgyen ion reaches 5200-12500/cm in the synthetic glass cabinet
3
Embodiment 2: the anaerobic oxidation of sanitary sewage and negative oxygen ion produce
Anaerobic waste water oxidation that present embodiment makes up and negative oxygen ion coupling generating unit and method flow are substantially the same manner as Example 1, different is the interior bio-carrier of anaerobic reactor, present embodiment anaerobic reactor filled conductive carbon felt material (160mm * 200mm, the about 3000m of specific surface area
2/ g) as bio-carrier, the reactor useful volume is 500mL.Experiment adopts the sanitary sewage of Chengdu sewage work to handle as object.This Sewage Plant sanitary sewage COD is 250-500mg/L by analysis, and ammonia nitrogen is 40-50mg/L.
Device startup and operation scheme and embodiment 1 are identical, at control water inlet COD volumetric loading 0.25-0.5kg/m
3.d steady running 60 days under the condition, after testing, water outlet COD is between 30-50mg/L, and ammonia nitrogen is between 35-45mg/L.Do not detect nitrite and nitrate.
Carry out the detection of negative oxygen ion according to the mode of embodiment 1, the result shows that under laboratory relative air humidity 50% environment, the room air negative oxygen ion is at 190-390/cm
3Between, through the reactor operation of 24h, air negative oxgyen ion reaches 4900-8000/cm in the synthetic glass cabinet
3
Embodiment 3: manually prepare inorganic ammonia nitrogen anaerobic waste water oxidation process denitrification and negative oxygen ion and produce
(1) manually prepare the ammonia nitrogen waste water nutrient media components:
NH
4Cl 0.53g/L, KH
2PO
40.625g/L, K
2HPO
43H
2O 10.36g/L, NaHCO
32.0g/L NaCl 0.5g/L, MgSO
47H
2O 0.2g/L, CaCl
20.015g/L, trace element solution 1ml/L
The trace element solution component:
CuSO
45H
2O 320mg; CoCl
26H
2O 320mg; (NH
4) 6Mo
7O
244H
2O 240mg; ZnSO
47H
2O 440mg; EDTA 1000mg; FeSO
47H
2O 1000mg; MnSO
4H
2O 870mg; Distilled water diluting is to 100ml.
(2) Zhuan Zhi startup and operation:
The ammonia nitrogen waste water that 500mL contains ammonia nitrogen 100mg/L charges into the anaerobic oxidation reactor, and in reactor, insert active sludge in the sewage disposal plant aeration tank, start aeration earlier and carry out the aerobic oxidation reaction, replenish fresh ammonia nitrogen waste water by changing water between incubation period, when the ammonia oxidation load reaches 50g N/m
3.d after, the device aerobic ammonia oxidation starts to be finished.Install after aerobic startup finishes, transfer the anaerobism operation to, charge into the fresh ammonia nitrogen waste water of preparation, be sealed into the mouth of a river and water outlet after changing water, different with embodiment 1 and 2 is that waste water does not carry out outer circulation in the reactor.The accumulation of ammonia nitrogen in waste water oxidation of timing acquiring water sample analysis and nitrite, nitrate during the ammonia nitrogen complete oxidation, is changed fresh ammonia nitrogen waste water, carries out the next batch operation.
Experiment steady running more than 90 day by adjusting the add-on of NH4Cl, maintains between the 100-160mg/L influent ammonium concentration, and reactor ammonia nitrogen anaerobic oxidation is loaded at 4.0-5.0g N/m
3.d between, anaerobic oxidation water outlet ammonia nitrogen is lower than detection limit, and nitrite is between 0-3.0mg/L, and nitrate is between 3-30mg/L.Nitrogen removal rate reaches 70-90%.
The negative oxygen ion detection method is not carried out the outer circulation except that bio-reactor waste water, and the method that other modes with embodiment 1 detect negative oxygen ion is identical.Detected result shows that under laboratory relative air humidity 50% environment, the room air negative oxygen ion is at 50-290/cm
3Between, through the reactor operation of 48h, air negative oxgyen ion reaches 490-800/cm in the synthetic glass cabinet
3
Embodiment 4: denitrogenation of percolate anaerobic oxidation and negative oxygen ion produce
Anaerobic waste water oxidation unit and startup, operation scheme and embodiment 3 that present embodiment makes up are identical, and different is that present embodiment adopts the mature landfill leachate after diluting to carry out anaerobic oxidation as low C/N than ammonia nitrogen waste water.Mature landfill leachate ammonia nitrogen concentration after the dilution is at 90-300mg/L, and nitrite is at 10-15mg/L, and total nitrogen is between 100-320mg/L, and COD is between 200-600mg/L, and wherein most of organic carbons can not be degraded.
Mature landfill leachate anaerobic oxidation device has moved more than 60 day, and Anammox is loaded at 4.0-8.0g N/m
3.d between, anaerobic oxidation water outlet ammonia nitrogen is lower than detection limit, and nitrite is between 0-3.0mg/L, and nitrate is between 3-85mg/L, and nitrogen removal rate is between 65-85%.
The negative oxygen ion detection method is identical with embodiment 3, and detected result shows that under laboratory relative air humidity 50% environment, the room air negative oxygen ion is at 50-190/cm
3Between, through the reactor operation of 48h, air negative oxgyen ion reaches 500-1000/cm in the synthetic glass cabinet
3
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