CN105600927A - Wastewater simultaneous nitrification and denitrification denitrifying method and device - Google Patents
Wastewater simultaneous nitrification and denitrification denitrifying method and device Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/343—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the pharmaceutical industry, e.g. containing antibiotics
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/02—Fluid flow conditions
- C02F2301/028—Tortuous
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Abstract
The invention discloses a wastewater simultaneous nitrification and denitrification denitrifying device and a wastewater simultaneous nitrification and denitrification denitrifying method. According to the device and the method, a separation plate is arranged in a reaction pool space of a used bioreactor; the upper end of the separation plate is used as an overflowing opening; an ascending passage and a descending passage are formed at two sides of the separation plate and communicated at the bottom end of the separation plate, so that a circulation passage is formed; an aeration system is arranged at the bottom of the ascending passage; waste water entering the aeration system to take nitratlon reaction after aeration mixing; at least partial wastewater passes through the overflowing opening and descends along the descending passage; basalt fiber fillings are arranged in the descending passage; a large number of microorganisms in the wastewater can be easily adhered onto basalt fiber to grow, so that nitrification bacteria and denitrification bacteria are enriched on the basalt fiber; descending wastewater reaches the bottom of a reaction pool and is then subjected to aeration mixing, and enters the ascending passage through the bottom of the separation plate, so that high-speed circulation treatment is performed. The device and the method have the advantage that the simultaneous treatment of nitrification and denitrification in the same reaction pool is realized.
Description
Technical field
The invention belongs to technical field of waste water processing, be specifically related to a kind of waste water synchronous nitrification and denitrification method and device.
Background technology
Along with economic fast development, the wastewater flow rate of the industry discharges such as chemical industry, printing and dyeing, medicine is increasing, and water quality becomes increasingly complex. Particularly more domestic larger fermentation class pharmacy corporation, comprises the metabolite of the various complexity that produce in the remaining culture medium of fermentation, silk thalline and sweat, as carbohydrate, protein, organic acid in production in the waste water producing; Also have organic solvent, soda acid, sulfate and a small amount of antibiotic etc. that in leaching process, produce. Due to the bio-refractory organic substance that contains biofermentation metabolism generation, and on a small quantity microorganism is had and poisoned and inhibiting antibiotic, colourity is high, complicated component, and water quality and quantity changes greatly, is a kind of unmanageable high concentrated organic wastewater. Such waste water adopt general materialized pretreatment with biochemical in conjunction with or only biochemical treatment extremely difficulty reach treatment effect, in the urgent need to the effective aureomycin wastewater processing technology of exploiting economy.
Biological denitrificaion is a kind of method of comparatively mature and reliable, if be responsible for microbial host nitrifier and the denitrifying bacterium of denitrogenation. In practical engineering application, the growing environment of two kinds of thalline is completely different, therefore generally all by nitrification and denitrification process separately, for example, most project adopts anaerobic-aerobic (A/O) technique to have the shortcomings such as denitrification effect is bad, sewage disposal equipment floor space is large, investment operating cost height.
In recent years, there is gradually researcher that nitrifier and denitrifying bacterium are placed in to Mixed culture in same reactor both at home and abroad, synchronously carry out nitration denitrification reaction, can not only overcome the deficiency of traditional handicraft, improve nitric efficiency, can also greatly save cost, therefore synchronous nitration denitrification denitrogenation process starts to become the focus in waste water control field. But this process result is unsatisfactory, practical engineering application waits checking. Domesticly some relevant research work are carried out, patent CN102050521B discloses a kind of synchronous nitration and denitrification and has processed the method containing ammonia sewage, first cultivate denitrogenation granule sludge, then adopt synchronous nitration and denitrification process to process containing ammonia sewage with this denitrogenation granule sludge. This method is higher to the clearance of organic pollution, but nitrifying granular activated sludge need to be tamed, be cultivated to the method first, separation screening aerobic denitrifying bacteria, then the two is mixed with to denitrogenation granule sludge, early stage, actual mechanical process was comparatively complicated, exists and amplify a difficult problem in practical engineering application. Patent CN104609565A discloses a kind of synchronous nitration and denitrification processing method of ammonia-containing water, in the method, need to arrange diffusion barrier and carry out nitrated, denitrification subregion reaction, can ensure effectively generation separately nitrated, anti-nitration reaction, but through long-play, diffusion barrier is easily stopped up by suspension, impact effect.
Although synchronous nitration denitrification denitrogenation technology has had larger breakthrough at present, but still exist clearance low, the shortcomings such as fluctuation of service, and this technology not yet has relevant Case Report for the pharmaceutical wastewater denitrogenation of high concentration, and most existing technique is all only effective for ammonia nitrogen removal, total nitrogen is removed still undesirable, has seriously limited the practical application of this technique. Therefore, take simple and effective measure ensure nitrification and denitrification synchronous high-efficiency and carry out steadily in the long term, very important to the engineering application of this technique.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, the wastewater treatment equipment and the method that provide a kind of nitration denitrification synchronously to carry out.
Specifically, the present invention has adopted following technical scheme:
A kind of waste water synchronous nitration denitrification denitrogenation device, comprise bioreactor, it is characterized in that, in reaction tank space in bioreactor, dividing plate is set, dividing plate upper end is as overfall, dividing plate bottom is communicated with, the reaction tank space of dividing plate both sides forms respectively rising passway and decline passway, thereby in bioreactor, form circulation canal, wherein in rising passway bottom, aerating system is set, water intake is arranged on rising passway bottom, the moisture that the waste water entering is come with decline passway through aeration mixes, thereby carry out high efficiency nitrification reaction, the waste water of rising passway declines along decline passway through an overfall part, a part flows out through the delivery port that is arranged on reaction tank decline passway top, basalt fibre filler is set in decline passway, and this filler is all immersed in waste water. basalt fibre filler is made up of fibre bundle, this fibre bundle is to be made up of the basalt fibre monofilament of certain diameter, a large amount of microorganisms in waste water easily stick to growth and breeding on basalt fibre, make nitrobacteria and denitrifying bacteria on basalt fibre, be able to enrichment, the waste water of decline passway arrives reaction tank bottom, fully mixes to rise carry out high-speed circulating processing with this by dividing plate bottom with the water inlet of rising passway bottom.
In said apparatus, described basalt fibre filler adopts the mode of fibre bundle vertical hanging, or the mode that adopts fibre bundle to arrange around fixing core forms.
Preferably, described basalt fibre filler is decline passway one side being fixed on dividing plate.
The invention also discloses a kind of waste water synchronous nitrification and denitrification method, it is characterized in that, described method comprises waste water is conveyed in the reaction tank of bioreactor, in the space of wherein said reaction tank, dividing plate is set, dividing plate upper end is as overfall, dividing plate bottom is communicated with, and the reaction tank space of dividing plate both sides forms respectively rising passway and decline passway, thereby in bioreactor, forms circulation canal; In rising passway bottom, aerating system is set, water intake is arranged on rising passway bottom, thereby the waste water entering by water inlet is crossed water through aeration and decline passway and is fully mixed and carry out high efficiency nitrification reaction, the delivery port of reaction tank is arranged on decline passway top, the waste water of rising passway declines along decline passway through an overfall part, and a part flows out through the delivery port that is arranged on reaction tank decline passway top; In decline passway, hung basalt fibre filler, this filler is all immersed in waste water. Basalt fibre filler is made up of fibre bundle, this fibre bundle is to be made up of the basalt fibre monofilament of certain diameter, a large amount of microorganisms in waste water easily stick to growth and breeding on basalt fibre, make nitrobacteria and denitrifying bacteria on basalt fibre, be able to enrichment, the waste water declining, through being enriched with the basalt fibre of nitrobacteria and denitrifying bacterium, carries out nitrification and denitrification reaction simultaneously; Waste water arrives reaction tank bottom after synchronous nitration and denitrification is processed, and fully mixes rising with the water inlet of rising passway bottom, carries out high-speed circulating processing with this.
In above apparatus and method, preferably, basalt fibre filler filament diameter is 10 ~ 20 μ m.
Preferably, in aeration process, making the dissolved oxygen concentration of reactor aeration zone by aerating system control is 1.0 ~ 5.0mg/L.
In another preferred version, the reaction temperature of controlling reactor is 20 ~ 35 DEG C, and pH value is 6 ~ 9.
On the other hand, controlling free sludge concentration in reactor is 2.0 ~ 6.0g/L, wherein ensures the stable of sludge concentration in reactor by the mode of sedimentation basin sludge reflux is set, and controlling return sludge ratio scope is 50% ~ 100%.
As a preferred embodiment, the ammonia nitrogen concentration of pending waste water is 280 ~ 470mg/L, and total nitrogen concentration is 400 ~ 650mg/L, and COD concentration is 2000 ~ 3000mg/L.
Also preferred, be that 4:1 ~ 10:1 adds required organic carbon source according to carbon-nitrogen mass ratio, organic carbon source is the one in methyl alcohol, ethanol, sodium acetate, glucose, flour etc.
Compared with prior art, the present invention has following outstanding feature:
1, in reactor, basalt fibre is set, activated sludge easily sticks on basalt fibre, mud long-term aggregated on fiber, in reactor, being provided with aerator makes Sludge Surface be oxygen condition, assemble a large amount of nitrifiers, mud inside is because being anaerobism or anaerobic condition, gathering denitrifying bacterium for hypoxgia. Therefore, by controlling suitable dissolved oxygen amount, in reactor, carry out nitration reaction and anti-nitration reaction, i.e. synchronous nitration and denitrification reaction simultaneously. Nitrifier utilizes the ammonia nitrogen in waste water to carry out nitration reaction, and the nitre nitrogen of generation or nitrite nitrogen can enter the nutriment of mud inside as denitrifying bacterium, and nitre nitrogen or nitrite nitrogen are changed into nitrogen. Due to the reduction of product inhibition, contribute to improve the effect of nitration reaction, nitration denitrification promotes mutually, has realized efficiently removing of total nitrogen. Therefore, compared with traditional denitrification process, nitration reaction and denitrification can be carried out in same reactor, have reduced the complexity that sets up nitrification tank and denitrification pond separately, and the floor space of having reduced equipment, has saved cost of investment. In addition, synchronous nitration and denitrification can obviously shorten hydraulic detention time, improves the treatment effeciency of sewage, has also greatly improved the operational efficiency of device.
2, when nitration reaction occurs, can consume basicity, so conventionally need to add alkali lye and maintain the environment of suitable nitrobacteria growth, and when nitration denitrification is synchronously in the time that a reactor carries out, anti-nitration reaction can produce basicity, make up the required basicity of part nitration reaction, reduce the consumption of additional alkali lye, save operating cost.
The fibrous material of 3, filling in reactor is pencil, large with the contact area of sewage. For general waste water, except ammonia nitrogen, also contain the suspended material of other hard degradations, these materials that utilize conventional biochemical process to be difficult to remove may be absorbed and fixed on basalt fibre along with circulating of waste water, can reduce to a certain extent the generation of excess sludge.
4, reactor arranges dividing plate, basalt fibre two ends are fixed, baffle plate bottom is communicated with, upper end is as overfall, sewage enters reactor and fully flows and mix under the effect of aeration, rising to overfall from passage overflows, part of contaminated water declines along passage, in reaction tank, carrying out Rapid Circulation flows, the activated sludge particle diameter obtaining in the conventional nitrification tank of activated sludge particles size ratio is large, in reactor, the viscosity of sewage can too not increase along with the rising of sludge concentration, and dissolved oxygen is utilized effectively. In addition, this flow at high speed has not only ensured the high efficiency of nitration reaction, but also can cause waving of basalt fibre, in the time that the microbial load of basalt fibre is too high, the mud of surface part enrichment nitrifier comes off, enter reactor aeration zone, nitrobacteria quantity increases, thereby has promoted the nitration reaction efficiency of aeration zone.
Brief description of the drawings
Fig. 1 is the structural representation of waste water synchronous nitration denitrification denitrogenation reactor assembly of the present invention.
Fig. 2 is a kind of structure of basalt fibre bundle in waste water synchronous nitration denitrification denitrogenation reactor of the present invention.
Fig. 3 is the film formed cross sectional representation of nitration denitrification bacterium on basalt fibre.
In the drawings: 1-bioreactor; 2-basalt fibre; 3-aeration zone; 4-packing area decline passway; 5-aerating system; 6-water inlet; 7-mends alkali lye mouth; 8-mends carbon source mouth; 9-delivery port; 10-dividing plate; 11-core; 12-basalt fibre bundle; 13-basalt fibre; 14-anoxic zone; 15-aerobic zone.
Detailed description of the invention
The invention provides a kind of novel waste water synchronous nitrification and denitrification method and device, utilize basalt fibre filler, on its section, form from outside to inside aerobic zone, anoxic zone, nitrogen in waste water is carried out to efficient Transformatin, reach be better than the fermenting requirement of class pharmaceuticals industry pollution discharge standard of Determination of Total Nitrogen in Waste Water index, realize and in one reaction pool, carried out nitration denitrification reaction, thereby overcome the deficiencies in the prior art. Technology of the present invention be specially adapted to the to ferment wastewater treatment of class pharmacy corporation, in particular for the denitrogenation of waste water processing in aureomycin production process.
Waste water synchronous nitration denitrification denitrogenation device of the present invention, comprise following content: in aeration and biological reactor, dividing plate is set, basalt fibre is fixed at two ends, baffle plate bottom is communicated with, upper end is as overfall, basalt fibre is all immersed in waste water, reaction tank bottom arranges aerating system, waste water enters reactor continuously with certain flow, nitration reaction is carried out in aeration mixing, part waste water declines along passage through overfall, in waste water, a large amount of microorganisms easily stick on basalt fibre and grow, the particularly nitrobacteria of enriched and denitrifying bacteria, decline waste water arrive bottom of device through aeration mix after again by rising passway to upper reaches, through baffle plate overflow, part water outlet, a part enters decline passway, so carry out high-speed circulating processing.
In the present invention, basalt fibre used adopts vertical hanging or spiral surrounding in the mode of fixing core.
In the present invention, utilizing aerating system control reactor aeration region dissolved oxygen concentration is 1.0 ~ 5.0mg/L, and preferable range is 2.0 ~ 4.0mg/L. Aerator deflection arranges, and along with drainage flow, oxygen is utilized effectively in reactor, and the oxygen that enters filler close quarters is relatively less, is conducive to form anaerobic or anaerobic environment and efficiently carries out anti-nitration reaction. In the time there is relatively large deviation in dissolved oxygen concentration, by regulating the suitable dissolved oxygen concentration of aeration control. In addition, controlling temperature of reaction system is 20 ~ 35 DEG C, realizes pH value scope 6 ~ 9 by outer acid adding, alkali.
In the present invention, mud is selected ordinary activated sludge, and in actual waste water processing procedure, controlling free sludge concentration in reactor is 2.0 ~ 6.0g/L, ensure the stable of sludge concentration in reactor by the mode of sedimentation basin sludge reflux is set, controlling return sludge ratio scope is 50% ~ 100%.
In the present invention, pending waste water is mainly aureomycin waste water, and ammonia nitrogen concentration is generally 280 ~ 470mg/L, and total nitrogen concentration is generally 400 ~ 650mg/L, and COD concentration is generally 2000 ~ 3000mg/L; The mode that employing batch is intake or intake continuously, while taking continuous mode of intaking to carry out biological denitrificaion processing, the water conservancy time of staying is generally 8 ~ 12 hours.
In the present invention, for supplementary carbon source, be that 4:1 ~ 10:1 adds required organic carbon source according to carbon-nitrogen mass ratio, and organic carbon source is one or both in methyl alcohol, ethanol, sodium acetate, glucose, flour etc.; Adopt batch or the mode of continuous adding is carried out supplementing of organic carbon source.
With further reference to accompanying drawing, the present invention will be described.
The present invention utilizes technique that basalt fibre realizes synchronous nitration denitrification denitrogenation as shown in Figure 1. Dividing plate 10 is set in aeration and biological reactor 1, and basalt fibre 2 is fixed at dividing plate 10 two ends. Should understand; for example, although show in figure that basalt fibre 2 is fixed on dividing plate 10, basalt fibre 2 also can otherwise be arranged in decline passway 4, adopts the mode of supporter; adopt hang etc., concrete protection domain should be as the criterion with described in claims. But basalt fibre is fixed on dividing plate and has further advantages, can improve the convenience of transformation prior art Waste Water Treatment. Adopt the mode that basalt fibre is fixed on to dividing plate, basalt fibre and dividing plate can be made to an entirety, for existing wastewater treatment aeration tank, the entirety of this basalt fibre and dividing plate can be inserted in aeration tank, make aeration tank be divided into two passages, there is that side of water inlet and aerating system as rising passway, and using basalt fibre and that side of delivery port as decline passway, can transform easily existing Waste Water Treatment. As the structure of basalt fibre bundle, as mentioned above, can be the mode of fibre bundle vertical hanging, the mode that also can adopt fibre bundle to arrange around fixing core forms, and can be arranged on separately in decline passway, also can be fixed on dividing plate. In addition, the structure of basalt fibre Shu Benshen, can be as shown in fig. 1 in the time being the structure of the fixing core layout of fibre bundle environmental protection, is the mode of the fixing core of fibre bundle spiral surrounding, or as shown in Figure 2, there are multiple fiber beam rings to fix core around being interspersed around center. The fibre bundle arrangement of this complexity has further increased the anaerobic environment of fibre bundle inside, for the growth of denitrifying bacteria provides better growing environment.
Dividing plate as above 10 bottoms are communicated with, upper end is as overfall, basalt fibre is all immersed in waste water, reaction tank bottom arranges aerating system 5, aerating system adopts aeration plate or aeration stone, waste water enters reactor with certain flow continuously from water inlet 6, mix and carry out nitration reaction in aeration zone 3, part waste water declines along passage 4 through packing area through overfall, in waste water, a large amount of microorganisms easily stick on basalt fibre and grow, the particularly nitrobacteria of enriched and denitrifying bacteria, decline waste water arrive bottom of device through aeration mix after again by rising passway to upper reaches, through baffle plate overflow, part water outlet, a part enters decline passway, so carry out high-speed circulating processing. during process operation, the pH value in timing detecting processing system, regulating the pH value in reactor by benefit alkali lye mouth 7 is 6 ~ 9. if desired additional organic carbon source, can add organic carbon source to packing area by mending carbon source mouth 8. waste water after treatment is discharged by outlet 9, and because water outlet is that muddy water mixes, reactor external demand connects a sedimentation basin for sludge reflux and outer row.
As shown in Figure 3, in the present invention, because Sludge Surface there are differences with the inner dissolved oxygen concentration contacting, carry out nitration reaction and anti-nitration reaction simultaneously. Along with the carrying out of the outer aerobic nitrification reaction of mud, the mineralized nitrogen in waste water is become nitre nitrogen or nitrite nitrogen by nitrifier. The carrying out of mud inner counter nitration reaction can consume nitre nitrogen or nitrite nitrogen in time simultaneously, promotes nitration reaction, and the two synergy, realizes the efficient removal of total nitrogen. And it is described above again, the arrangement of binding fiber bundle and the control of aeration rate, further realize the good formation of the integrally-built inner anaerobic environment of fibre bundle and outside oxygen-enriched environment, for nitration reaction and the inner anti-nitration reaction of Sludge Surface provide good growth of microorganism environment and reaction environment, realize synchronously carrying out of nitration denitrification reaction.
Below in conjunction with embodiment, the present invention is further described, these embodiment and accompanying drawing only play illustrative effect, are not limited to range of application of the present invention.
Embodiment
Embodiment 1
Waste discharge with Henan fermentation class pharmaceutical Co. Ltd carries out denitrogenation processing, the water quality of water inlet is as shown in table 2, and indices all far can not meet fermentation class pharmaceuticals industry pollution discharge standard-GB219032008(existing enterprise Sewage Water Emissions concentration limit) emission request. Concrete experiment condition is as shown in table 3, moves 2 months, gets sedimentation basin water outlet and chemically examines, and gets its mean value.
The waste water quality situation that table 2 is intake
Table 3 experiment condition
| Experiment condition | Wastewater treatment capacity (L/d) | Reaction tank volume (L) | Suspension activated sludge MLSS concentration (mg/L) |
| Concrete data | 24 | 10 | 3200 |
Concrete steps are as follows:
Taking the waste discharge of Henan fermentation class pharmaceutical Co. Ltd as object, adopt method of the present invention to carry out experimental verification, experimental rig is as shown in Figure 1.
First activated sludge is joined in apparatus of the present invention, by water inlet, by pending waste water adding apparatus, controlling overall sludge concentration is 3500 ~ 4000mg/L. Adopt water inlet continuously, control flow of inlet water and be about 1L/h. In running, the pH value of detecting processing system, regulating it is 7.5 ~ 8.0 fluctuation range, and by regulating aerate flux, the dissolved oxygen value of controlling aeration region in reactor is 3.0 ~ 4.0mg/L. Organic carbon source adopts ethanol, and carbon-nitrogen ratio is 5:1, carries out stream add according to depletion rate. Waste water after treatment is arranged into sedimentation basin from delivery port, the regular spoil disposal of sedimentation basin.
System operation 2 months, sedimentation basin water outlet COD is about 110mg/L, and ammonia-nitrogen content is 10.8mg/L, and total nitrogen content is about 25.9mg/L, and far below fermentation class pharmaceuticals industry pollution discharge standard, clearance is more than 95%.
With instantiation, embodiments of the present invention are described in detail by reference to the accompanying drawings above, but the invention is not restricted to above-mentioned embodiment, in the ken possessing at affiliated technical field those of ordinary skill, can also under the prerequisite that does not depart from aim of the present invention, make a variety of changes.
Claims (10)
1. a waste water synchronous nitration denitrification denitrogenation device, comprise bioreactor, it is characterized in that, in reaction tank space in bioreactor, dividing plate is set, dividing plate upper end is as overfall, dividing plate bottom is communicated with, the reaction tank space of dividing plate both sides forms respectively rising passway and decline passway, thereby in bioreactor, form circulation canal, wherein in rising passway bottom, aerating system is set, water intake is arranged on rising passway bottom, the moisture that the waste water entering is come with decline passway through aeration mixes, thereby carry out high efficiency nitrification reaction, the waste water of rising passway declines along decline passway through an overfall part, a part flows out through the delivery port that is arranged on reaction tank decline passway top, basalt fibre filler is set in decline passway, this filler is all immersed in waste water, basalt fibre filler is made up of fibre bundle, this fibre bundle is to form with the basalt fibre monofilament of certain diameter, a large amount of microorganisms in waste water easily stick to growth and breeding on basalt fibre, make nitrobacteria and denitrifying bacteria on basalt fibre, be able to enrichment, the waste water of decline passway arrives reaction tank bottom, fully mix rising by dividing plate bottom with the water inlet of rising passway bottom, carry out high-speed circulating processing with this.
2. waste water synchronous nitration denitrification denitrogenation device as claimed in claim 1, is characterized in that, described basalt fibre filler adopts the mode of fibre bundle vertical hanging, or the mode that adopts fibre bundle to arrange around fixing core forms.
3. waste water synchronous nitration denitrification denitrogenation device as claimed in claim 1, is characterized in that, described basalt fibre filler is decline passway one side being fixed on dividing plate.
4. waste water synchronous nitration denitrification denitrogenation device as claimed in claim 1, is characterized in that, basalt fibre filler filament diameter is 10 ~ 20 μ m.
5. a waste water synchronous nitrification and denitrification method, it is characterized in that, described method comprises waste water is conveyed in the reaction tank of bioreactor, in the space of wherein said reaction tank, dividing plate is set, dividing plate upper end is as overfall, dividing plate bottom is communicated with, and the reaction tank space of dividing plate both sides forms respectively rising passway and decline passway, thereby in bioreactor, forms circulation canal; In rising passway bottom, aerating system is set, water intake is arranged on rising passway bottom, thereby the water that the waste water entering by water inlet is come with decline passway through aeration fully mixes and carries out high efficiency nitrification reaction, the delivery port of reaction tank is arranged on decline passway top, the waste water of rising passway declines along decline passway through an overfall part, and a part flows out through the delivery port that is arranged on reaction tank decline passway top; In decline passway, be provided with basalt fibre filler, this filler is all immersed in waste water, basalt fibre filler is made up of fibre bundle, this fibre bundle forms with the basalt fibre monofilament of certain diameter, a large amount of microorganisms in waste water easily stick to growth and breeding on basalt fibre, make nitrobacteria and denitrifying bacteria on basalt fibre, be able to enrichment, the waste water of decline, through being enriched with the basalt fibre of nitrobacteria and denitrifying bacteria, carries out nitrification and denitrification reaction simultaneously; Waste water arrives reaction tank bottom after synchronous nitration and denitrification is processed, and fully mixes rising with the water inlet of rising passway bottom, carries out high-speed circulating processing with this.
6. waste water synchronous nitrification and denitrification method as claimed in claim 5, is characterized in that, in aeration process, making the dissolved oxygen concentration of reactor aeration zone by aerating system control is 1.0 ~ 5.0mg/L.
7. waste water synchronous nitrification and denitrification method as claimed in claim 5, is characterized in that, the reaction temperature of controlling reactor is 20 ~ 35 DEG C, and pH value is 6 ~ 9.
8. waste water synchronous nitrification and denitrification method as claimed in claim 5, it is characterized in that, controlling free sludge concentration in reactor is 2.0 ~ 6.0g/L, wherein ensure the stable of sludge concentration in reactor by the mode of sedimentation basin sludge reflux is set, controlling return sludge ratio scope is 50% ~ 100%.
9. waste water synchronous nitrification and denitrification method as claimed in claim 5, is characterized in that, pending waste water is mainly aureomycin waste water, and its ammonia nitrogen concentration is 280 ~ 470mg/L, and total nitrogen concentration is 400 ~ 650mg/L, and COD concentration is 2000 ~ 3000mg/L.
10. waste water synchronous nitrification and denitrification method as claimed in claim 5, is characterized in that, is that 4:1 ~ 10:1 adds required organic carbon source according to carbon-nitrogen mass ratio, and organic carbon source is the one in methyl alcohol, ethanol, sodium acetate, glucose, flour etc.
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| CN201511010567.8A CN105600927A (en) | 2015-12-30 | 2015-12-30 | Wastewater simultaneous nitrification and denitrification denitrifying method and device |
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| CN201511010567.8A CN105600927A (en) | 2015-12-30 | 2015-12-30 | Wastewater simultaneous nitrification and denitrification denitrifying method and device |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN107698022A (en) * | 2017-09-21 | 2018-02-16 | 江苏大学 | Basalt biological nest orients supplementary carbon source sewage water denitrification device and its application method |
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| CN108793401A (en) * | 2018-06-14 | 2018-11-13 | 石泰山 | A kind of formula and preparation method thereof of denitrification compounded carbons |
| CN108946926A (en) * | 2018-08-01 | 2018-12-07 | 江苏艾特克环境工程有限公司 | A kind of biochemical reactor based on MBF filler |
| CN110040805A (en) * | 2019-04-04 | 2019-07-23 | 嘉兴学院 | A kind of degassing tower recycled for the decyanation of liquid containing cyanogen and valuables |
| CN110902826A (en) * | 2019-12-02 | 2020-03-24 | 江苏艾特克环境工程设计研究院有限公司 | Low-emission N2O water treatment system and treatment method |
| CN112544535A (en) * | 2020-11-06 | 2021-03-26 | 遵义师范学院 | Circulating high-level pond fish culture system |
| CN112897800A (en) * | 2021-01-12 | 2021-06-04 | 江苏艾特克环境工程设计研究院有限公司 | Chemical industry park nanotube wastewater treatment system and treatment process |
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| CN113461139A (en) * | 2021-06-29 | 2021-10-01 | 天津科信建设工程检测有限公司 | Double-knot fiber bundle floating ball biological carrier and microorganism attachment regulation method thereof |
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| CN106186319A (en) * | 2016-08-12 | 2016-12-07 | 江苏艾特克环境工程设计研究院有限公司 | A kind of industrial wastewater denitrogenation dephosphorizing desulfurization apparatus based on new packing and processing method |
| CN106277315A (en) * | 2016-08-12 | 2017-01-04 | 江苏艾特克环境工程设计研究院有限公司 | A kind of denitrification microorganism nest based on basalt fibre filler and cultural method thereof |
| CN106277315B (en) * | 2016-08-12 | 2019-08-27 | 江苏艾特克环境工程设计研究院有限公司 | A kind of denitrification microorganism nest and its cultural method based on basalt fibre filler |
| CN107215953A (en) * | 2017-08-01 | 2017-09-29 | 广州华浩能源环保集团股份有限公司 | A kind of sewage of low concentration processing system |
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| CN108946926B (en) * | 2018-08-01 | 2021-11-02 | 江苏艾特克环境工程有限公司 | Biochemical reactor based on MBF filler |
| CN108946926A (en) * | 2018-08-01 | 2018-12-07 | 江苏艾特克环境工程有限公司 | A kind of biochemical reactor based on MBF filler |
| CN110040805B (en) * | 2019-04-04 | 2021-07-16 | 嘉兴学院 | Degassing tower for decyanation of cyanogen-containing liquid and recovery of valuable substances |
| CN110040805A (en) * | 2019-04-04 | 2019-07-23 | 嘉兴学院 | A kind of degassing tower recycled for the decyanation of liquid containing cyanogen and valuables |
| CN110902826A (en) * | 2019-12-02 | 2020-03-24 | 江苏艾特克环境工程设计研究院有限公司 | Low-emission N2O water treatment system and treatment method |
| CN110902826B (en) * | 2019-12-02 | 2022-07-05 | 江苏艾特克环境工程设计研究院有限公司 | Low-emission N2O water treatment system and treatment method |
| CN112544535A (en) * | 2020-11-06 | 2021-03-26 | 遵义师范学院 | Circulating high-level pond fish culture system |
| CN114685004A (en) * | 2020-12-31 | 2022-07-01 | 江苏艾特克环境工程设计研究院有限公司 | Biochemical treatment system and method for sulfur-containing printing and dyeing wastewater |
| CN112897800A (en) * | 2021-01-12 | 2021-06-04 | 江苏艾特克环境工程设计研究院有限公司 | Chemical industry park nanotube wastewater treatment system and treatment process |
| CN113003705A (en) * | 2021-04-01 | 2021-06-22 | 桂林理工大学 | Filler type biological rotating disc and method for converting ammonia nitrogen based on filler type biological rotating disc |
| CN113461139A (en) * | 2021-06-29 | 2021-10-01 | 天津科信建设工程检测有限公司 | Double-knot fiber bundle floating ball biological carrier and microorganism attachment regulation method thereof |
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