CN108911139A - A kind of induction generates the sewage disposal system and method for short-cut nitrification and denitrification - Google Patents
A kind of induction generates the sewage disposal system and method for short-cut nitrification and denitrification Download PDFInfo
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- CN108911139A CN108911139A CN201810931247.3A CN201810931247A CN108911139A CN 108911139 A CN108911139 A CN 108911139A CN 201810931247 A CN201810931247 A CN 201810931247A CN 108911139 A CN108911139 A CN 108911139A
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- cut nitrification
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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
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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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- Biodiversity & Conservation Biology (AREA)
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- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
This application involves sewage disposal systems and method that technical field of sewage more particularly to a kind of induction generate short-cut nitrification and denitrification.By being provided with preposition anoxic pond in anaerobic pond upstream, the sludge in sludge concentration tank is introduced into preposition anoxic pond with part sewage to be processed, reduces the nitrate content into anaerobic pond, the dephosphorization efficiency of lifting system；Short-cut nitrification and denitrification pond is configured in system by the way of being individually aerated, realizes integration operation, compared with prior art, the oxygen demand of the entire sewage disposal process of the application has dropped 25%, and system denitrification is to the slump in demand of carbon source 40%；Present applicant proposes a kind of systems of new realization short-cut nitrification and denitrification integrated apparatus, have extremely strong technical advantage, promote nitric efficiency for sewage-treatment plant, reducing energy consumption has important application value.
Description
Technical field
This application involves technical field of sewage more particularly to a kind of induction to generate at the sewage of short-cut nitrification and denitrification
Manage system and method.
Background technique
Polluted by nitrogen is recognized the seriousness that water body endangers by more and more people, and the biological denitrificaion of waste water is exactly to simulate
The circulation of nitrogen in natural ecological environment, using the synergy of obligate aerobic nitrification bacterium and facultative denitrifying bacterium, by water with each
Nitrogen existing for kind form is converted into nitrogen and escapes into atmosphere.Traditional complete nitrification and denitrification biological denitrification process is in waste water
Certain effect is played in terms of denitrogenation, but there are still some problems, as the ammonia nitrogen water inlet of high concentration can inhibit the life of nitrifier
The problems such as length, nitrifier growth rate causes total hrt longer slowly.Short-cut nitrification and denitrification bio-denitrification technology, by
In having many advantages, such as to reduce energy consumption, saving carbon source, reduce that sludge creation amount, reactor volume be small and small accommodation area, by people
Common concern.The core of Short-distance nitrification denitrification nitrogen removal technology be by nitrifying process control in nitrous acid phase, then into
Row denitrification.Usually using the intrinsic difference of Nitrosomas and the kinetic characteristics of Nitromonas, using control high temperature, low dissolution
Oxygen, higher pH, high ammonia nitrogen loading etc. generate the mode of Different Effects to the growth of two class strains to realize.
Summary of the invention
In order to solve the above-mentioned technical problem or it at least is partially solved above-mentioned technical problem, this application provides one kind to lure
The sewage disposal system and method for the raw short-cut nitrification and denitrification of artificial delivery.
This application provides the sewage disposal systems that a kind of induction generates short-cut nitrification and denitrification, including press drainage flow side
To what is be sequentially arranged：Preposition anoxic pond, anaerobic pond, anoxic pond, short-cut nitrification and denitrification pond, aerobic tank, catch basin, sedimentation basin,
Clear water reserviors, the sedimentation basin are connected with sludge concentration tank by stripping tube, the sludge concentration tank and the preposition anoxic pond it
Between be connected with mud return line, interior return pipe is connected between the aerobic tank and anoxic pond；The preposition anoxic pond offers
First water inlet, the anaerobic pond offer the second water inlet；Along drainage flow direction, the short-cut nitrification and denitrification pond is independent
Aeration.
Optionally, the front end in the short-cut nitrification and denitrification pond is equipped with pH adjusting agent and adds mouth, the anti-nitre of short distance nitration
The rear end for changing pond is equipped with pH detector.
Optionally, the front end in the short-cut nitrification and denitrification pond is equipped with ammonium salt and adds mouth.
Optionally, the preposition anoxic pond, anaerobic pond, anoxic pond, short-cut nitrification and denitrification pond, aerobic tank, catch basin, heavy
Shallow lake pond, clear water reserviors, sludge concentration tank are arranged in same groove body, and the anoxic pond, anaerobic pond, anoxic pond, short distance nitration are anti-
Nitrification tank, aerobic tank are separated by partition, and the aperture for drainage flow is offered on the partition；At least described short distance
Partition position between nitration denitrification pond and aerobic tank is adjustable.
Optionally, on drainage flow direction, the anaerobic pond, anoxic pond, aerobic tank are respectively provided with multiple, and same reaction
Pond is continuously arranged.
Optionally, the structure for adjusting the partition position specifically includes：Multipair card slot on the groove body is set, it is multipair
The card slot flows to interval setting along sewage, and the partition is installed therein in a pair of card slot.
Optionally, the ratio between inflow of first water inlet and the second water inlet is 1：9.
Optionally, further include intermediate water tank for storing treatment sewage, the outlet of the intermediate water tank respectively with institute
State the first water inlet, the connection of the second water inlet.
Present invention also provides a kind of sewage water treatment method based on above-mentioned sewage disposal system, the anti-nitre of short distance nitration
Change pond and pass through the operation realization short-cut nitrification and denitrification process for carrying out alternately aerobic/anoxic, and reaction temperature is 30-35 DEG C, pH
Value is 7.0-8.5.
Optionally, the alternating it is aerobic/operation of anoxic is specially：Aerobic reaction 185min-hypoxia response 30min-
Aerobic reaction 95min-hypoxia response 60min.
Above-mentioned technical proposal provided by the embodiments of the present application has the following advantages that compared with prior art：By in anaerobic pond
Upstream is provided with preposition anoxic pond, and the sludge in sludge concentration tank is introduced preposition anoxic pond with part sewage to be processed, is subtracted
The nitrate content into anaerobic pond, the dephosphorization efficiency of lifting system are lacked；It is by the way of being individually aerated that short distance nitration is anti-
Nitrification tank is configured in system, realizes integration operation, compared with prior art, the oxygen consumption of the entire sewage disposal process of the application
Amount has dropped 25%, and system denitrification is to the slump in demand of carbon source 40%；Present applicant proposes a kind of new realization short distance nitre
Change the system of denitrification integrated apparatus, there is extremely strong technical advantage, nitric efficiency is promoted for sewage-treatment plant, is reduced
Energy consumption has important application value.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and together with specification it is used to explain the principle of the application.
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without any creative labor, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the plane signal for the sewage disposal system that induction generates short-cut nitrification and denitrification described in the embodiment of the present application
Figure.
Wherein, the 1, first water inlet；2, the second water inlet；3, preposition anoxic pond；4, anaerobic pond；5, anoxic pond；6, short distance
Nitration denitrification pond；7, aerobic tank；8, interior return pipe；9, mud return line；10, sedimentation basin；11, sludge concentration tank；12, clear water
Pond；13, catch basin；14, pH adjusting agent adds mouth；15, pH detector；16, ammonium salt adds mouth；17, partition；18, card slot.
Specific embodiment
It, below will be in the embodiment of the present application to keep the purposes, technical schemes and advantages of the embodiment of the present application clearer
Technical solution be clearly and completely described, it is clear that described embodiment is a part of the embodiment of the application, without
It is whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work
Under the premise of every other embodiment obtained, shall fall in the protection scope of this application.
Shown in Fig. 1, this application provides the sewage disposal systems that a kind of induction generates short-cut nitrification and denitrification, including by dirt
Water flowing direction is sequentially arranged：Preposition anoxic pond 3, anaerobic pond 4, anoxic pond 5, short-cut nitrification and denitrification pond 6, aerobic tank 7, collection
Sink 13, sedimentation basin 10, clear water reserviors 12, the sedimentation basin 10 are connected with sludge concentration tank 11 by stripping tube, and the sludge is dense
It is connected with mud return line 9 between contracting pond 11 and the preposition anoxic pond 3, is connected between the aerobic tank 7 and anoxic pond 5 interior
Return pipe 8；The preposition anoxic pond 3 offers the first water inlet 1, and the anaerobic pond 4 offers the second water inlet 2；Along sewage
Flow direction, the short-cut nitrification and denitrification pond 6 are individually aerated.Fig. 1 chain lines frame favored area is short-cut nitrification and denitrification pond
6。
The overall operation mode of the application is：Part of contaminated water enters preposition anoxic pond 3 from the first water inlet 1, then flows into
Anaerobic pond 4；Remaining sewage enters anaerobic pond 4 from the second water inlet 2, then in turn through anoxic pond 5, short-cut nitrification and denitrification pond
6, aerobic tank 7, catch basin 13, sedimentation basin 10, the supernatant in sedimentation basin 10 flow into 12 outlet of clear water reserviors, the dirt in sedimentation basin 10
Mud enters sludge concentration tank 11 through stripping tube, and the sludge in sludge concentration tank 11 is back to preposition anoxic pond through mud return line 9
3；Mixed liquor in aerobic tank 7 is back to anoxic pond 5 through interior return pipe 8.After i.e. sewage enters preposition anoxic pond 3, from concentration
The returned sludge in pond completes part denitrification in preposition anoxic pond 3, reduces nitrate concentration, reduces the nitre for entering anaerobic pond 4
Hydrochlorate amount；Sewage in preposition anoxic pond 3 subsequently enters anaerobic pond 4 and completes sufficiently to release phosphorus, and sewage enters anoxic pond through anaerobic pond 4
5, the mixed liquor that aerobic tank 7 flows back completes denitrification herein, and sewage enters short-cut nitrification and denitrification pond 6, when being aerated by control
Machine and duration realize aerobic/anoxic alternation response, further efficient denitrification here；Sewage enters aerobic tank 7 later,
Organic matter sufficiently inhales phosphorus by aerobic degradation, activated sludge, enters sedimentation basin 10 by catch basin 13, subsequent sludge passes through stripping tube
Into sludge concentration tank 11, supernatant enters clear water reserviors 12, then discharges.
The setting of preposition anoxic pond 3 can play the purpose of distribution carbon source, reduce the amount for entering the nitrate of anaerobic pond 4,
The dephosphorization efficiency of lifting system；Short-cut nitrification and denitrification pond 6 is configured in system by the way of being individually aerated, realizes one
Change operation, compared with prior art, the oxygen demand of the entire sewage disposal process of the application has dropped 25%, and system denitrification is to carbon
The slump in demand in source 40%.On the whole, present applicant proposes a kind of new realization short-cut nitrification and denitrification integrated apparatus
System, have extremely strong technical advantage, for sewage-treatment plant promoted nitric efficiency, reduce energy consumption have important application
Meaning.
Optionally, the front end in the short-cut nitrification and denitrification pond 6 is equipped with pH adjusting agent and adds mouth 14, and the short distance nitration is anti-
The rear end of nitrification tank 6 is equipped with pH detector 15.In front end, setting pH adjusting agent adds mouth 14, conveniently adds NaHCO3, and rear
End setting pH detector 15 is detected, so as to by the pH value control of liquid in short-cut nitrification and denitrification pond 6 in 7.0-8.5, it is excellent
Selected control system is between 7.5-8.2；Nitrate is inhibited to grow by controlling environmental parameter, to provide for nitrite growth
Suitable environment.
Optionally, the front end in the short-cut nitrification and denitrification pond 6 is equipped with ammonium salt and adds mouth 16.In front end, setting ammonia salt is added
Mouthful, ammonium salt can be added at any time, can within a certain period of time be controlled the concentration of free ammonia in short-cut nitrification and denitrification pond 6 in 1-
In 10mg/L, realizes and to the inhibiting effect of nitrifier, optimize the dominant bacteria that ammonia oxidation bacteria is activated sludge in a short time to realize
Short distance nitration.
Optionally, the preposition anoxic pond 3, anaerobic pond 4, anoxic pond 5, short-cut nitrification and denitrification pond 6, aerobic tank 7, catchment
Slot 13, sedimentation basin 10, clear water reserviors 12, sludge concentration tank 11 are arranged in same groove body, and the anoxic pond 5, lacks anaerobic pond 4
Oxygen pond 5, short-cut nitrification and denitrification pond 6, aerobic tank 7 are separated by partition, are offered on the partition for drainage flow
Aperture；17 position-adjustable of partition between at least described short-cut nitrification and denitrification pond 6 and aerobic tank 7.The position of partition 17
Can flexible modulation, thus realize change short-cut nitrification and denitrification pond 6 and aerobic tank 7 volume, adjustment sewage it is anti-in short distance nitration
Residence time in nitrification tank 6 and aerobic tank 7, adapt to different influent quality situations.
Terminate from preposition anoxic pond 3 to short-cut nitrification and denitrification pond 6, sewage is flowed along " S " type track, is reached aerobic
Then change streamlined flow into behind pond 7, it can be understood as short-cut nitrification and denitrification pond 6 be after original anoxic pond 5 1/4 with it is original aerobic
The independent region that 1/4 zone isolation comes out before pond 7, sewage realize flow direction switching in short-cut nitrification and denitrification pond 6, favorably
In the abundant progress of reaction.
Optionally, on drainage flow direction, the anaerobic pond 4, anoxic pond 5, aerobic tank 7 are respectively provided with multiple and identical
Reaction tank is continuously arranged.Partition is equipped with aperture, does not influence drainage flow；Sewage flows between differential responses pond, Ke Yijin
Row is sufficiently mixed, while extending the residence time of sewage.
Optionally, the structure for adjusting 17 position of partition specifically includes：Multipair card slot 18 on the groove body is set,
The multipair card slot 18 flows to interval setting along sewage, and the partition 17 is installed therein in a pair of card slot 18.Such as Fig. 1 institute
Show, multipair card slot 18 is respectively set in the upstream and downstream of partition 17, according to actual needs, partition 17 is installed to suitable card slot 18
At position, so that it may realize and be adjusted to the volume in short-cut nitrification and denitrification pond 6 and aerobic tank 7, change sewage in corresponding reaction tank
The interior residence time, the case where to adapt to different influent qualities.
Optionally, the ratio between inflow of first water inlet 1 and the second water inlet 2 is 1：9.Only allow 10% sewage into
Enter preposition anoxic pond 3, realizes the purpose for reducing and entering 4 ammonia density of anaerobic pond, the sewage of residue 90% is through the second water inlet 2
It is directly entered anaerobic pond 4 and participates in reaction；It can realize to reduce using a small amount of sewage to be processed and enter 4 ammonia density of anaerobic pond
Purpose, it is at low cost without being additionally provided raw material or equipment.
Optionally, further include intermediate water tank for storing treatment sewage, the outlet of the intermediate water tank respectively with institute
State the first water inlet 1, the connection of the second water inlet 2.The volume of intermediate water tank is usually that reaction dirt is participated in subsequent all reaction tanks
2-3 times of water volume may be implemented by adjusting the temperature of sewage in intermediate water tank to the subsequent water temperature tune for participating in reaction sewage
Section, the especially adjusting to water temperature in short-cut nitrification and denitrification pond 6 provide optimal environment for nitration denitrification reaction.
In addition, present invention also provides a kind of sewage water treatment method based on above-mentioned sewage disposal system, the short distance nitre
Change denitrification pond 6 and pass through the operation realization short-cut nitrification and denitrification process for carrying out alternately aerobic/anoxic, and reaction temperature is 30-
35 DEG C, pH value 7.0-8.5.After sewage enters short-cut nitrification and denitrification pond 6, by the exposure for adjusting short-cut nitrification and denitrification pond 6
Gas opportunity and duration provide the reaction environment of alternately aerobic/anoxic, and the control of reaction temperature can be by adjusting aforementioned centre
The mode of water tank temperature realizes that the adjusting of pH value then can add NaHCO by adding mouth 14 in pH adjusting agent3Mode realize,
It determines the need for continuing to add NaHCO according to the testing result of pH detector 15 simultaneously3。
Optionally, the alternating it is aerobic/operation of anoxic is specially：Aerobic reaction 185min-hypoxia response 30min-
Aerobic reaction 95min-hypoxia response 60min.Enter during short-cut nitrification and denitrification pond 6 leaves to sewage from sewage, it is first
It is first persistently aerated 185min, then stops aeration 30min, then be persistently aerated 95min, finally stops aeration, waits sewage discharge
Short-cut nitrification and denitrification pond 6.Above-mentioned duration of the reaction is a preferred ageing, can root in actual process
It is aerated the lasting and waiting time according to specific operating condition flexible modulation, to meet the needs of different operating conditions.
The mode of alternately aerobic/anoxic is taken to realize that short-cut nitrification and denitrification process, specific embodiment are, short
In the reaction time in journey nitration denitrification pond 6, sequence carries out aerobic reaction 185min, hypoxia response 30min, aerobic reaction
95min, hypoxia response 60min, while control area mixed liquor temperature is maintained at 30-35 DEG C, pH control is ammonia in 7.5-8.2
The dominant growth of oxidation bacteria creates conditions, and realizes the accumulation of nitrite, and then realize short-cut nitrification and denitrification process.
It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above is only the specific embodiment of the application, is made skilled artisans appreciate that or realizing this Shen
Please.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
These embodiments as described herein are not intended to be limited to, and are to fit to and applied principle and features of novelty phase one herein
The widest scope of cause.
Claims (10)
1. the sewage disposal system that a kind of induction generates short-cut nitrification and denitrification, which is characterized in that including pressing drainage flow direction
It is sequentially arranged：It is preposition anoxic pond, anaerobic pond, anoxic pond, short-cut nitrification and denitrification pond, aerobic tank, catch basin, sedimentation basin, clear
Pond, the sedimentation basin is connected with sludge concentration tank by stripping tube, between the sludge concentration tank and the preposition anoxic pond
It is connected with mud return line, interior return pipe is connected between the aerobic tank and anoxic pond；The preposition anoxic pond offers
One water inlet, the anaerobic pond offer the second water inlet；Along drainage flow direction, the short-cut nitrification and denitrification pond individually exposes
Gas.
2. sewage disposal system according to claim 1, which is characterized in that the front end in the short-cut nitrification and denitrification pond is set
There is pH adjusting agent to add mouth, the rear end in the short-cut nitrification and denitrification pond is equipped with pH detector.
3. sewage disposal system according to claim 1, which is characterized in that the front end in the short-cut nitrification and denitrification pond is set
There is ammonium salt to add mouth.
4. sewage disposal system according to claim 1, which is characterized in that the preposition anoxic pond, anaerobic pond, anoxic
Pond, short-cut nitrification and denitrification pond, aerobic tank, catch basin, sedimentation basin, clear water reserviors, sludge concentration tank are arranged in same groove body,
The anoxic pond, anaerobic pond, anoxic pond, short-cut nitrification and denitrification pond, aerobic tank are separated by partition, on the partition
Offer the aperture for drainage flow；Partition position between at least described short-cut nitrification and denitrification pond and aerobic tank is adjustable.
5. sewage disposal system according to claim 4, which is characterized in that on drainage flow direction, the anaerobic pond,
Anoxic pond, aerobic tank are respectively provided with multiple, and same reaction pond is continuously arranged.
6. sewage disposal system according to claim 4, which is characterized in that the structure for adjusting the partition position is specifically wrapped
It includes：Multipair card slot on the groove body is set, and the multipair card slot flows to interval setting along sewage, and the partition is mounted on it
In middle a pair card slot.
7. sewage disposal system according to claim 1-6, which is characterized in that first water inlet and second
The ratio between inflow of water inlet is 1：9.
8. sewage disposal system according to claim 1-6, which is characterized in that further include to be processed for storing
The intermediate water tank of sewage, the outlet of the intermediate water tank are connected to first water inlet, the second water inlet respectively.
9. the sewage water treatment method based on any one of the claim 1-8 sewage disposal system, which is characterized in that the short distance
Nitration denitrification pond passes through the operation realization short-cut nitrification and denitrification process for carrying out alternately aerobic/anoxic, and reaction temperature is 30-
35 DEG C, pH value 7.0-8.5.
10. sewage water treatment method according to claim 9, which is characterized in that the alternating is aerobic/and the operation of anoxic is specific
For：Aerobic reaction 185min-hypoxia response 30min-aerobic reaction 95min-hypoxia response 60min.
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| CN110240273A (en) * | 2019-06-11 | 2019-09-17 | 西安建筑科技大学 | The alternately device and its control method of hungry culture induction short-cut nitrification and denitrification |
| CN111960541A (en) * | 2020-10-20 | 2020-11-20 | 清之源环保科技有限公司 | Integrated sewage treatment equipment and method |
| CN112811574A (en) * | 2021-01-15 | 2021-05-18 | 北京首创清源环境科技有限公司 | Integrated sewage treatment system with multiple operation modes |
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| 曹贵华: "改良A2/O分段进水工艺处理低C/N市政废水的性能与优化控制", 中国优秀博硕士学位论文全文数据库（博士）工程科技I辑 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110240273A (en) * | 2019-06-11 | 2019-09-17 | 西安建筑科技大学 | The alternately device and its control method of hungry culture induction short-cut nitrification and denitrification |
| CN110240273B (en) * | 2019-06-11 | 2022-11-01 | 西安建筑科技大学 | Device for inducing short-cut nitrification and denitrification by alternate starvation culture and control method thereof |
| CN111960541A (en) * | 2020-10-20 | 2020-11-20 | 清之源环保科技有限公司 | Integrated sewage treatment equipment and method |
| CN111960541B (en) * | 2020-10-20 | 2021-01-08 | 清之源环保科技有限公司 | Integrated sewage treatment equipment and method |
| CN112811574A (en) * | 2021-01-15 | 2021-05-18 | 北京首创清源环境科技有限公司 | Integrated sewage treatment system with multiple operation modes |
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