CN206255890U - Biological denitrification reactor - Google Patents

Biological denitrification reactor Download PDF

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Publication number
CN206255890U
CN206255890U CN201621225005.5U CN201621225005U CN206255890U CN 206255890 U CN206255890 U CN 206255890U CN 201621225005 U CN201621225005 U CN 201621225005U CN 206255890 U CN206255890 U CN 206255890U
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zone
biological denitrification
denitrification reactor
aerobic zone
anoxic
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王羽华
王小莉
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Suzhou Is According To This Times Of Environmental Protection Equipment Science And Technology Ltd
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Abstract

The utility model discloses a kind of biological denitrification reactor, including housing, top board and base plate are had on housing, two dividing plates are provided with enclosure interior, each dividing plate is provided with through hole, and enclosure interior is divided into anaerobic zone by dividing plate successively from bottom to up, aerobic zone and exhalant region, about one sleeve with opening is provided with inside aerobic zone, sleeve inner forms anoxic zone, agitating device is provided with inside aerobic zone;Water inlet is provided with anaerobic zone bottom, waste water enters fashionable, current pass through anaerobic zone against gesture is upper, anoxic zone and aerobic zone, and the slow internal flow under the stirring of agitating device, the flowing for making inside reactor biologic packing material interlock in reaction zone interior circulation under hydro-flow thrust, so as to speed up to ammonification, the process of nitrification and denitrification.

Description

Biological denitrification reactor
Technical field
The utility model is related to a kind of field of waste water treatment, more particularly, to a kind of biological denitrification reactor.
Background technology
Biological denitrificaion is mainly three courses of reaction, respectively aminating reaction, nitration reaction, anti-nitration reaction;In ammonification Under bacterium effect, organic nitrogen is decomposed and is converted into ammoniacal nitrogen, and this process is referred to as ammonifying process, and ammonifying process is easy to carry out.Nitre Change reaction to be completed by aerobic autotrophic type microorganism, be carbon source by NH using DIC under aerobic state4 +Chemical conversion NO2 -, then It is reoxidised into NO3 -Process.Nitrifying process is segmented into two stages.First stage be by nitrococcus by mineralized nitrogen for Asia Nitrate (NO2 -), Nitrite transformation is nitrate (NO by nitrifier by second stage3 -).Anti-nitration reaction is in anoxic shape Under state, nitrite nitrogen, nitrate nitrogen are reduced into gaseous nitrogen (N by denitrifying bacterium2) process.Denitrifying bacterium is the micro- life of heterotroph Thing, belongs to facultative bacteria more, in anaerobic condition, by the use of the oxygen in nitrate as electron acceptor, with organic matter (in sewage BOD compositions) as electron donor, there is provided energy is simultaneously oxidized stabilization.But the stage of reaction is mixed in one in traditional reaction unit Rising is carried out, and by the strain that nitration reaction and anti-nitration reaction are used is different with required oxygen content, Autotrophic nitrification bacterium is big In the presence of amount organic matter, to the competition of oxygen and nutriment not as aerobic heterotroph is so as to cause the heterotroph in reactor to turn into Dominant bacteria;And anti-nitration reaction needs organic carbon source to complete denitrification process as electron donor.Therefore nitrification and denitrification bacterium The difference of physiological mechanism result in the various combination of biological denitrification reactor, and such as nitrification and denitrification is completed by same sludge Single sludge processes and different sludge complete two sludge system.The former is realized by alternate aerobic and anaerobism section.The latter Then realized by using separate nitrification and denitrification reactor.
MBBR techniques (MBBR, also referred to as fluidized-bed process) have become a kind of frequent use The means of bio-denitrifying sewage.MBBR technological principles are by a number of suspending carrier is added in reactor, due to filling out Material density is close to water, so when aeration, with water in the state that is thoroughly mixed, the environment of growth of microorganism is gas, liquid, solid Three-phase.Collision and shear action of the carrier in water, make air bubble more tiny, increased the utilization rate of oxygen.In addition, every Different biological species, some anaerobic bacterias of growth inside or simultaneous oxygen bacterium are respectively provided with inside and outside individual carrier, outside preferably bacteria is so every Individual carrier is all a microreactor, nitration reaction and anti-nitration reaction is existed simultaneously, so as to improve treatment effect.
But MBBR techniques have the following disadvantages:
1st, it is typically under aeration condition, its DO is maintained at 4~6mg/L, to ensure that filler in MBBR ponds get up to fill by rolling Divide and contacted with water body, so needing substantial amounts of power consumption.
2nd, because there is sufficient aerobic state, the nitrification effect that MBBR pond body interior energies are realized, water outlet nitrate concentration is high, Denitrification can hardly be carried out, the process of denitrogenation can not be completed.
Utility model content
The purpose of this utility model is the defect for overcoming prior art, there is provided a kind of biological denitrification reactor, by inciting somebody to action Aerobic zone, anaerobic zone and anoxic distinguish rational deployment, and waste water interregional is not broken off a friendship each in the presence of agitating device The whole process of the biological denitrificaion of reactor completion waste water rapidly and efficiently is realized for reaction.
To achieve the above object, the utility model proposes following technical scheme:Its housing for including being provided with base plate and top board, It is characterized in that:The enclosure interior is sequentially provided with anaerobic zone from bottom to up, and aerobic zone, exhalant region sets inside the aerobic zone There is the anoxic zone communicated with the aerobic zone, the first dividing plate, the aerobic zone are provided between the anaerobic zone and the aerobic zone Second partition is provided with and the exhalant region between, first dividing plate is provided with first through hole, and the second partition is provided with Two through holes, the anaerobic zone is provided with water inlet.
Preferably, the reactor also includes the agitating device being arranged on housing, and the agitating device includes power source And the stirring vane being connected with the power source, the stirring vane stretched into inside the anoxic zone.
Preferably, the biologic packing material of suspension is additionally provided with the reactor.
Preferably, the biologic packing material is the Novel biofilm carrier that coir fibre material is made.
Preferably, aeration tube is provided with inside the aerobic zone, the aeration tube is arranged on the periphery of the anoxic zone.
Preferably, the anoxic zone is surrounded by circular sleeve.
Preferably, the housing is circular cylinder body, and the circular sleeve and the circular sleeve cross section are concentric circles.
Preferably, the first through hole is arranged on the underface of the anoxic zone.
Preferably, the anaerobic zone is provided with the first mud discharging mouth, and the aerobic zone is provided with the second mud discharging mouth.
The beneficial effects of the utility model are:
1st, biologic packing material is in the reactor using the effect of upper up-flow, mechanical agitation and aeration;It is constantly in fluidized state, Lose the contact for making sewage extensively and frequently multiple with the biomembrane on filler, and filler cuts dispersion gas in fluid mapper process Bubble so that gas distribution tends to uniform, and coefficient of oxygen utilization is also improved;Floating stuffing is washed away by air-flow, current, aging film Energy Automatic-falling, takes away, it is ensured that the activity of film with water outlet, promotes metabolism.
2nd, compared with traditional double mud reactors, the reasonable design of structure of reactor greatlys save space.
3rd, by low rate mixing and a small amount of aeration realize the anaerobism of the reactor, anoxic, aerobic three kinds of states exchange more Replace, improve ammonification, nitrification, the anti-nitration reaction process of biological denitrificaion, greatly save power.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model biological denitrification reactor.
Reference:1st, housing, 2, anaerobic zone, 3, aerobic zone, 4, anoxic zone, 5, exhalant region, 6, agitating device, 7, set Cylinder, 8, biologic packing material, 11, top board, 12, base plate, the 13, first dividing plate, 14, second partition, 21, water inlet, the 22, first spoil disposal Mouthful, 31, aeration tube, the 32, second mud discharging mouth, 51, delivery port, 61, stirring vane, 62, power source, 131, first through hole, 141, Second through hole.
Specific embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical scheme of the utility model embodiment is carried out clear, complete Description.
With reference to shown in Fig. 1, the biological denitrification reactor disclosed in the utility model, for processing waste water by the nitrogen in waste water Removal, reactor includes housing 1, and the upper end of housing 1 is provided with top board 11, and lower end is provided with base plate 12, housing 1, top board 11 and base plate 12 A closed space is formed, two dividing plates are provided with inside the housing 1, the inner space of housing 1 is divided into anaerobic zone 2, it is aerobic Area 3 and exhalant region 5;And each dividing plate is provided with through hole, make each interregional interconnected;Anoxic is additionally provided with inside aerobic zone 3 Area 4, anoxic zone 4 is spaced by sleeve 7 with aerobic zone 3, and the two ends of sleeve 7 are opening, make aerobic zone 3 and anoxic zone 4 and detest 2 three, oxygen area region is interconnected, and anaerobic zone 2 is provided with water inlet 21, and waste water is entered in anaerobic zone 2 by water inlet 21, Aminating reaction is carried out, reacted waste water enters aerobic zone 3 and anoxic zone under water flow pressure effect by the through hole on dividing plate, So as to realize ammonification, nitrification, denitrifying process.Add biologic packing material 8 in the reactor simultaneously, accelerate ammonification, nitrification, anti-nitre The process of change.
Aeration tube 31 is internally provided with aerobic zone 3, the oxygen of abundance is provided for the nitrifier of aerobic zone 3, accelerate nitrification Reaction, agitating device 6 is internally provided with anoxic zone 4, and low rate mixing makes current drive the biologic packing material of the suspension in anoxic zone 4 8 between anoxic zone 4 and aerobic zone 3 shuttling movement so that nitration reaction and anti-nitration reaction cycle alternation are carried out, accelerate anti- Speed is answered, exhalant region 5 is raised to by waterborne after reaction treatment, discharged by the delivery port 51 of exhalant region 5.Set in anaerobic zone 2 There is the first mud discharging mouth 22, aerobic zone 3 is provided with the second mud discharging mouth 32, and the sludge that reaction is produced after terminating can be discharged by mud discharging mouth.
Specific reaction is as follows:
Nitration reaction in aerobic zone:
NH4 ++3O2-2NO2 -+2H2O+4H+;NO2+0.5O2-NO3 -
Overall reaction is:NH4 ++2O2-NO3 -+H2O+2H+,
The anti-nitration reaction of anoxic zone:
NO2 -+3H+-0.5N2+H2O;
NO3 -+5H+-0.5N2+H2O。
Because the Survival Reproduction of microorganism is influenceed by various factors, in order to preferably accelerate the carrying out of reaction, can be Inside reactor sets temperature-controlling system, PH monitoring systems etc. to create the environment of suitable micro-organisms breeding.
A preferred embodiment of the present utility model, as shown in figure 1, the preferably circular cylinder of housing 1 of reactor, anaerobism Area 2, aerobic zone 3 and exhalant region 5 are spaced from each other by dividing plate, and anaerobic zone 2 and between aerobic zone 3 dividing plate is the first dividing plate 13, the dividing plate between aerobic zone 3 and exhalant region 5 is second partition 14, and is provided with first through hole 131, second on the first dividing plate 13 Dividing plate 14 is provided with the second through hole 141, and anoxic zone 4 is surrounded by being arranged on a circular sleeve inside aerobic zone 3, and sleeve 7 communicate with aerobic zone 3, and sleeve 7 is coaxial with circular cylinder body, it is preferred that first through hole 131 be arranged on the anoxic zone 4 just under Side.The water inlet 21 of anaerobic zone 2 is preferably located on the lowermost end of anaerobic zone 2.
Be fixedly installed an agitating device 6 on the top board 11 of circular cylinder body, agitating device include power source 62 and with it is dynamic The stirring vane 61 that power source 62 is connected, power source 62 may be selected motor, and stirring vane 61 is stretched into anoxic zone 4, in motor Under drive, stirring vane 61 can carry out Stirring in anoxic zone 4, so as to promote the flowing of current.
When the current in anaerobic zone 2 are flowed up, first-selection enters anoxic zone 4, stretches into the stirring vane inside anoxic zone 4 61, the water stirred inside anoxic zone 4 under power source drive at a slow speed flows sluggish flow, is arranged on inside reactor Under the drive of current, the shuttling movement between anoxic zone 4 and aerobic zone 3 accelerates anaerobism to biologic packing material 8, aerobic and anoxic Course of reaction.
Inside aerobic zone 3, the periphery of sleeve 7 is provided with aeration tube 31, and the oxygen of abundance is provided for the aerobic bacteria of aerobic zone 3 Gas, further speeds up reaction speed.Water outlet is flowed into by the second through hole 141 by ammonification, nitrification and denitrification reacted water Area 5, discharges in the delivery port 51 through exhalant region 5, and the sludge that reaction is produced after terminating can be by the first mud discharging mouth 22 and second row Mud mouthful 32 is discharged, and completes the process of whole reaction.
In order to preferably accelerate reaction speed, it is to new biologic packing material, new biologic packing material is added in reactor Coir fibre material is made.The reactor of Novel biofilm carrier is added compared with traditional carrier, it is in waste water treatment process In the antimicrobial surface load of 3000m2/m3 can be provided, considerably beyond the microbial load of conventional filler;With removal very high Rate and reliable operation stability, the fine and close pore system of filler provide good condition and are set up to biomembrane thin in space, And give the substrate of the nutrition that microorganism obtains from waste water and the oxygen of abundance.Additionally, the thickness of biomembrane can retain for a long time The motion of waste water filler is promoted by hydraulic shear.
Technology contents of the present utility model and technical characteristic are had revealed that as above, but those of ordinary skill in the art still may be used A variety of replacements and modification without departing substantially from the utility model spirit can be made based on teaching of the present utility model and announcement, therefore, this Utility model protection scope should be not limited to the content disclosed in embodiment, and should include various without departing substantially from replacement of the present utility model And modification, and covered by present patent application claim.

Claims (9)

1. a kind of biological denitrification reactor, its housing for including being provided with base plate and top board, it is characterised in that:The enclosure interior from Under it is supreme be sequentially provided with anaerobic zone, aerobic zone, exhalant region is provided with the anoxic communicated with the aerobic zone inside the aerobic zone Area, is provided with the first dividing plate between the anaerobic zone and the aerobic zone, second is provided between the aerobic zone and the exhalant region Dividing plate, first dividing plate is provided with first through hole, and the second partition is provided with the second through hole, the anaerobic zone be provided with into The mouth of a river.
2. biological denitrification reactor according to claim 1, it is characterised in that the reactor also includes being arranged on housing On agitating device, the agitating device includes power source and the stirring vane that is connected with the power source, the paddle Piece is stretched into inside the anoxic zone.
3. biological denitrification reactor according to claim 1 and 2, it is characterised in that suspension is additionally provided with the reactor Biologic packing material.
4. biological denitrification reactor according to claim 3, it is characterised in that the biologic packing material is coir fibre material The Novel biofilm carrier being made.
5. biological denitrification reactor according to claim 1 and 2, it is characterised in that aeration is provided with inside the aerobic zone Pipe, the aeration tube is arranged on the periphery of the anoxic zone.
6. biological denitrification reactor according to claim 1 and 2, it is characterised in that enclosed by circular sleeve the anoxic zone Into.
7. biological denitrification reactor according to claim 6, it is characterised in that the housing is circular cylinder body, and described Circular sleeve is concentric circles with the circular sleeve cross section.
8. biological denitrification reactor according to claim 7, it is characterised in that the first through hole is arranged on the anoxic The underface in area.
9. biological denitrification reactor according to claim 1, it is characterised in that the anaerobic zone is provided with the first mud discharging mouth, The aerobic zone is provided with the second mud discharging mouth.
CN201621225005.5U 2016-11-15 2016-11-15 Biological denitrification reactor Active CN206255890U (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108059238A (en) * 2017-12-26 2018-05-22 长沙理工大学 A kind of pig farm process for treating waste liquor
CN108793397A (en) * 2018-06-08 2018-11-13 常州大学 A kind of waltherite composite Ti O2/ PP suspension step biofilm reactors
CN109928501A (en) * 2019-04-09 2019-06-25 东华大学 High-efficiency biological fluidized bed reactor
CN111186962A (en) * 2020-01-16 2020-05-22 四川宇阳环境工程有限公司 Scattered household micro-power sewage treatment all-in-one machine
CN112479499A (en) * 2020-11-27 2021-03-12 南京信息工程大学 Multiphase vertical fluidization direct-current micro-oxygen internal circulation sewage treatment device
CN112499763A (en) * 2020-11-11 2021-03-16 上海泓济环保科技股份有限公司 Short-cut nitrification coupling anaerobic ammonia oxidation denitrification reactor
CN112707591A (en) * 2020-12-23 2021-04-27 南京信息工程大学 Low-temperature nitrogen and phosphorus removal device for micro-aerobic multi-phase fluidization process
CN112794556A (en) * 2020-12-23 2021-05-14 南京信息工程大学 Internal circulation double-anoxic multi-phase fluidized nitrogen and phosphorus removal device
CN112939225A (en) * 2021-02-02 2021-06-11 南京信息工程大学 Sewage nitrogen and phosphorus removal device without power sludge backflow and system and method thereof
CN115490328A (en) * 2022-10-27 2022-12-20 恩格拜(武汉)生态科技有限公司 Built-in denitrification fluidizing device
CN117228839A (en) * 2023-11-10 2023-12-15 重庆大学 Integrated synchronous denitrification and desulfurization device and sewage treatment method

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108059238B (en) * 2017-12-26 2021-04-27 长沙理工大学 Pig farm waste liquid treatment process
CN108059238A (en) * 2017-12-26 2018-05-22 长沙理工大学 A kind of pig farm process for treating waste liquor
CN108793397A (en) * 2018-06-08 2018-11-13 常州大学 A kind of waltherite composite Ti O2/ PP suspension step biofilm reactors
CN109928501A (en) * 2019-04-09 2019-06-25 东华大学 High-efficiency biological fluidized bed reactor
CN111186962A (en) * 2020-01-16 2020-05-22 四川宇阳环境工程有限公司 Scattered household micro-power sewage treatment all-in-one machine
CN112499763A (en) * 2020-11-11 2021-03-16 上海泓济环保科技股份有限公司 Short-cut nitrification coupling anaerobic ammonia oxidation denitrification reactor
CN112479499A (en) * 2020-11-27 2021-03-12 南京信息工程大学 Multiphase vertical fluidization direct-current micro-oxygen internal circulation sewage treatment device
CN112707591A (en) * 2020-12-23 2021-04-27 南京信息工程大学 Low-temperature nitrogen and phosphorus removal device for micro-aerobic multi-phase fluidization process
CN112794556A (en) * 2020-12-23 2021-05-14 南京信息工程大学 Internal circulation double-anoxic multi-phase fluidized nitrogen and phosphorus removal device
CN112939225A (en) * 2021-02-02 2021-06-11 南京信息工程大学 Sewage nitrogen and phosphorus removal device without power sludge backflow and system and method thereof
CN115490328A (en) * 2022-10-27 2022-12-20 恩格拜(武汉)生态科技有限公司 Built-in denitrification fluidizing device
CN115490328B (en) * 2022-10-27 2023-11-03 恩格拜(武汉)生态科技有限公司 Built-in denitrification fluidization device
CN117228839A (en) * 2023-11-10 2023-12-15 重庆大学 Integrated synchronous denitrification and desulfurization device and sewage treatment method

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