CN108892241A - Integrated rural sewage-treatment plant associated with a kind of AAO and SBR technique - Google Patents
Integrated rural sewage-treatment plant associated with a kind of AAO and SBR technique Download PDFInfo
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- CN108892241A CN108892241A CN201810994005.9A CN201810994005A CN108892241A CN 108892241 A CN108892241 A CN 108892241A CN 201810994005 A CN201810994005 A CN 201810994005A CN 108892241 A CN108892241 A CN 108892241A
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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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Abstract
This application involves integrated rural sewage-treatment plant, the application associated with technical field of sewage more particularly to a kind of AAO and SBR technique effectively to be combined AAO system with SBR system, so that the denitrogenation dephosphorizing efficiency of device is substantially improved；In the case where preposition AAO system continuous operation, two oxygen compatibility pool alternate runs not only realize continuous effluent, but also oxygen compatibility pool can be allowed to be conserved, and ensure the processing capacity of oxygen compatibility pool；It is provided with flow-disturbing partition in oxygen compatibility pool, sewage mixes in oxygen compatibility pool more uniform with sludge, significantly improves the uniformity that material mixes in each reaction tank, increases the MLSS value of each reaction tank, improve the rate of each reaction tank especially nitration reaction；The high-efficiency intensifying processing that country sewage takes up an area less is realized, integrated degree is high, is convenient for large-scale promotion.
Description
Technical field
It is dirty that this application involves integrated rurals associated with technical field of sewage more particularly to a kind of AAO and SBR technique
Water treatment facilities.
Background technique
Currently, China's country sewage discharge amount is big, but treatment effeciency is very low, and 96% village does not have discharge conduit and sewage
Processing system, most unprocessed direct emissions of sewage, causes serious pollution to environment, since country sewage pollutes
The features such as source is wide, hardly possible is collected, source is more, complicated component, high concentration of suspension, is restricted, city by geographical conditions and economic factor
The centralized sewage treatment mode in town is not suitable for rural sewage treatment, therefore proposes to be suitble to country sewage decentralized processing
Technology and technique are the key points for solving the problems, such as Rural Water Pollution.Currently used sewage treatment process has AAO (" anaerobism-
The sewage treatment process of anaerobic-aerobic ", Anaerobic-Anoxic-Oxic), oxidation ditch and SBR (sequencing batch active sludge,
Sequencing Batch Reactor Activated Sludge Process) technology, oxidation ditch process is due to its technology spy
Point, more suitable for the sewage plant of extensive centralization, the prospect that then there is AAO and SBR technique small-scaleization to apply is traditional
AAO technique is generally divided into primary sedimentation tank, anaerobic pond, anoxic pond, aerobic tank and secondary settling tank, and total hrt is less than other works
Skill, but its Nitrogen/Phosphorus Removal is difficult to further increase there are certain limit, while occupied area is also difficult to further reduce；
SBR technique is a kind of processing technique run by intermittent aerating mode, and the core of SBR technology is sbr reactor pond, the Chi Jijun
Change, be just heavy, biodegrade, two functions such as heavy in a pond, be particularly suitable for intermittent discharge and the biggish occasion of changes in flow rate, the work
Skill bothers less compared to other simple processes, excess sludge disposition, investment reduction, takes up an area less, operating cost is low, resistance to organic negative
Lotus and toxic load impact, the method for operation are flexible.
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
Integrated rural sewage-treatment plant associated with AAO and SBR technique.
This application provides integrated rural sewage-treatment plants associated with a kind of AAO and SBR technique, including along sewage stream
What dynamic direction was set gradually：Main water inlet tube, anaerobic pond, anoxic pond, aerobic tank, the first oxygen compatibility pool/second oxygen compatibility pool, sedimentation basin,
Water outlet, the upstream of the anaerobic pond are equipped with preposition anoxic pond, and the upstream of the preposition anoxic pond is equipped with sludge concentration tank；It is described
Sludge in sedimentation basin is delivered in the sludge concentration tank, the partial reflux liquid point of first oxygen compatibility pool and the second oxygen compatibility pool
The sludge concentration tank is not introduced, and the supernatant of the sludge concentration tank introduces the anoxic pond, the dirt of the sludge concentration tank
Mud enters the anaerobic pond through the preposition anoxic pond；First oxygen compatibility pool and the second oxygen compatibility pool alternate run；
First oxygen compatibility pool and the second oxygen compatibility pool are equipped with flow-disturbing partition.
Optionally, the both ends of the flow-disturbing partition are connected with the side wall of corresponding oxygen compatibility pool, the flow-disturbing partition and oxygen compatibility pool
Bottom plate between there are the gaps passed through for fluid.
Optionally, the flow-disturbing partition is vertically arranged.
Optionally, on drainage flow direction, the flow-disturbing partition is obliquely installed.
Optionally, the bottom end of the flow-disturbing partition is tilted to the downstream in drainage flow direction.
It optionally, further include tank body, it is the main water inlet tube, anaerobic pond, anoxic pond, aerobic tank, the first oxygen compatibility pool, second simultaneous
Oxygen pond, sedimentation basin, water outlet, preposition anoxic pond, sludge concentration tank are arranged in the tank body.
Optionally, one end of the tank body is arranged in the aerobic tank, and the sedimentation basin and water outlet are arranged in the tank
The other end of body, first oxygen compatibility pool and the second oxygen compatibility pool are arranged side by side, and the one of first oxygen compatibility pool and the second oxygen compatibility pool
End connects with the aerobic tank, and first oxygen compatibility pool connects with the sedimentation basin with the other end of the second oxygen compatibility pool, institute
Anoxic pond, anaerobic pond, preposition anoxic pond, sludge concentration tank is stated to be sequentially arranged between first oxygen compatibility pool and the second oxygen compatibility pool
Region, the anoxic pond connects with the aerobic tank, and the preposition anoxic pond connects with the sedimentation basin.
It optionally, further include Rinsing Area, the Rinsing Area is arranged between the sedimentation basin and water outlet, the sedimentation basin
Supernatant through the Rinsing Area enter the water outlet.
Above-mentioned technical proposal provided by the embodiments of the present application has the following advantages that compared with prior art：The application is by AAO
System is effectively combined with SBR system, so that the denitrogenation dephosphorizing efficiency of device is substantially improved；In preposition AAO system continuous operation
In the case of, two oxygen compatibility pool alternate runs not only realize continuous effluent, but also oxygen compatibility pool can be allowed to be conserved, and ensure oxygen compatibility pool
Processing capacity；It is provided with flow-disturbing partition in oxygen compatibility pool, sewage mixes in oxygen compatibility pool more uniform with sludge, significantly improves each
The uniformity that material mixes in reaction tank, increases the MLSS value of each reaction tank, improves each reaction tank especially nitration reaction
Rate；The high-efficiency intensifying processing that country sewage takes up an area less is realized, integrated degree is high, is convenient for large-scale promotion.
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 of integrated rural sewage-treatment plant associated with AAO and SBR technique described in the embodiment of the present application
Figure；
Fig. 2 is the workflow of integrated rural sewage-treatment plant associated with AAO and SBR technique described in the embodiment of the present application
Cheng Tu.
Wherein, 1, aerobic tank；3, anoxic pond；4, anaerobic pond；5, the first oxygen compatibility pool；6, the second oxygen compatibility pool；7, main water inlet tube；
8, supernatant return pipe；9, preposition anoxic pond；10, sludge concentration tank；11, sedimentation basin；12, Rinsing Area；13, water outlet.
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.
Fig. 1 is the structural representation of integrated rural sewage-treatment plant associated with a kind of herein described AAO and SBR technique
Figure, the application includes setting gradually along drainage flow direction：Main water inlet tube 7, anaerobic pond 4, anoxic pond 3, aerobic tank 1, first
The upstream of 5/ second oxygen compatibility pool 6 of oxygen compatibility pool, sedimentation basin 11, water outlet 13, the anaerobic pond 4 is equipped with preposition anoxic pond 9, before described
The upstream for setting anoxic pond 9 is equipped with sludge concentration tank 10；Sludge in the sedimentation basin 11 is delivered in the sludge concentration tank 10,
The partial reflux liquid of first oxygen compatibility pool 5 and the second oxygen compatibility pool 6 introduces the sludge concentration tank 10, the sludge condensation respectively
The supernatant in pond 10 introduces the anoxic pond 3, and the sludge of the sludge concentration tank 10 described in the preposition entrance of anoxic pond 9 through detesting
Oxygen pond 4；6 alternate run of first oxygen compatibility pool 5 and the second oxygen compatibility pool；
First oxygen compatibility pool 5 and the second oxygen compatibility pool 6 are equipped with flow-disturbing partition.
AAO system generally comprises：Main water inlet tube 7, anaerobic pond 4, anoxic pond 3, aerobic tank 1, sedimentation basin 11, sludge concentration tank
10, have the function of synchronous denitrification dephosphorizing；SBR system generally comprises：Sedimentation basin 11, multiple oxygen compatibility pools are suitable for intermittent discharge
With the biggish occasion of changes in flow rate；The application is provided with two oxygen compatibility pools, is equivalent in AAO system postposition SBR system, so that
The denitrogenation dephosphorizing efficiency of device is substantially improved, and two oxygen compatibility pool alternate runs can effectively adjust entire integrated rural sewage
The reservoir storage of processing unit adapts to the sewage treatment environment that the discharge of sewage changes greatly；In the feelings of preposition AAO system continuous operation
Under condition, two oxygen compatibility pool alternate runs not only realize continuous effluent, but also oxygen compatibility pool can be allowed to be conserved, and ensure oxygen compatibility pool
Processing capacity；It is provided with flow-disturbing partition in oxygen compatibility pool, sewage mixes in oxygen compatibility pool more uniform with sludge, significantly improves each anti-
The uniformity that material mixes in Ying Chi, increases MLSS (mixed genetic-neural network, the Mixed Liquid of each reaction tank
Suspended Solids) value, improve the rate of each reaction tank especially nitration reaction.The application is by AAO technique and SBR work
Skill combines, while flow-disturbing partition is arranged with improving material mixing uniformity in oxygen compatibility pool, effectively improves existing sewage treatment
The efficiency of denitrogenation dephosphorizing in the process realizes the high-efficiency intensifying processing that country sewage takes up an area less, and integrated degree is high, is convenient for
Large-scale promotion.
Optionally, the both ends of the flow-disturbing partition are connected with the side wall of corresponding oxygen compatibility pool, the flow-disturbing partition and oxygen compatibility pool
Bottom plate between there are the gaps passed through for fluid.I.e. flow-disturbing partition can be set to integrated hanging, both ends and oxygen compatibility pool side wall
The structure being fixedly connected, such sewage and sludge can only all pass through below flow-disturbing partition, and path of the fluid in oxygen compatibility pool is not
It is unalterable advection state again, but becomes the S type path of " high-low-high ", effectively facilitates being sufficiently mixed for fluid, change
The homogeneity of kind fluid mixing, increases the MLSS value of each reaction tank, improves the rate of each reaction tank especially nitration reaction；
Meanwhile the setting of flow-disturbing partition, so that oxygen compatibility pool can also play the filtration of suspended sludge bed in water outlet.
Optionally, the flow-disturbing partition is vertically arranged.Flow-disturbing partition is vertically arranged, larger to the resistance of fluid, Ke Yiyou
Effect slows down the flow velocity of fluid, extends residence time and the incorporation time of fluid, the homogeneity of further lifting fluid mixing.
Optionally, on drainage flow direction, the flow-disturbing partition is obliquely installed.Flow-disturbing partition is obliquely installed, fluid pair
The active force of flow-disturbing partition is smaller, and the service life of flow-disturbing partition further extends；Flow-disturbing partition makees the obstruction of fluid simultaneously
With smaller, change in flow of the fluid in oxygen compatibility pool is smaller, facilitates the control of whole device inner fluid speed.
Optionally, the bottom end of the flow-disturbing partition is tilted to the downstream in drainage flow direction.Entrance can thus be formed
Greatly, small turbulence structure is exported, can effectively guide fluid quickly through when fluid passes through flow-disturbing partition bottom end, due to circulation
Sectional area is smaller, and the layering of sludge and sewage is disturbed, and sludge is forced to be sufficiently mixed with sewage, promotes oxygen compatibility pool and subsequent
The MLSS value of reaction tank, improves the rate of each reaction tank especially nitration reaction.
Optionally, the main water inlet tube 7, anaerobic pond 4, anoxic pond 3, aerobic as shown in Figure 1, the application further includes tank body
Pond 1, the first oxygen compatibility pool 5, the second oxygen compatibility pool 6, sedimentation basin 11, water outlet 13, preposition anoxic pond 9, sludge concentration tank 10 are respectively provided with
In the tank body.Will integrated rural sewage-treatment plant associated with entire AAO and SBR technique be arranged in a tank body
Interior, the volume of tank body can be designed according to sewage treatment capacity；Sewage-treatment plant is provided entirely in tank body, overall structure
It is compact, facilitate whole Transporting and installation.
Optionally, one end of the tank body is arranged in the aerobic tank 1, and the sedimentation basin 11 is arranged with water outlet 13 in institute
The other end of tank body is stated, first oxygen compatibility pool 5 and the second oxygen compatibility pool 6 are arranged side by side, first oxygen compatibility pool 5 and second and oxygen
The one end in pond 6 connects with the aerobic tank 1, the other end of first oxygen compatibility pool 5 and the second oxygen compatibility pool 6 with the precipitating
Pond 11 connects, and the anoxic pond 3, anaerobic pond 4, preposition anoxic pond 9, sludge concentration tank 10 are sequentially arranged in first oxygen compatibility pool
5 and the second region between oxygen compatibility pool 6, the anoxic pond 3 connect with the aerobic tank 1, the preposition anoxic pond 9 with it is described heavy
Shallow lake pond 11 connects.Two oxygen compatibility pools are arranged in two sides, so that entire sewage-treatment plant topology layout is reasonable, occupy little space,
Convenient transportation, installation occupy little space, stronger to the adaptability of installation environment, convenient to promote the use of in vast rural area region.
It optionally, further include Rinsing Area 12, the Rinsing Area 12 is arranged between the sedimentation basin 11 and water outlet 13, institute
The supernatant for stating sedimentation basin 11 enters the water outlet 13 through the Rinsing Area 12.Supernatant after i.e. sedimentation basin 11 precipitates is advanced
Enter Rinsing Area 12, is then discharged again by Rinsing Area 12 into water outlet 13, Rinsing Area 12 can play certain buffer function, put
The sludge set in sedimentation basin 11 is discharged.
For convenience of the application is understood, referring to the main working process for shown in Fig. 2, introducing the application：Sewage from
After main water inlet tube 7 enters, fraction sewage respectively enters 9, two oxygen compatibility pools of preposition anoxic pond, and most of sewage, which is directly entered, to be detested
Then 4 bottom of oxygen pond sequentially enters anoxic pond 3, aerobic tank 1, the first oxygen compatibility pool 5 or the second oxygen compatibility pool 6, sedimentation basin 11, clear water
Slot 12, water outlet 13 see which oxygen compatibility pool is in operating status, which oxygen compatibility pool are entered after the water in aerobic tank 1 comes out；
The supernatant of oxygen compatibility pool enters sedimentation basin 11, and the partial reflux liquid of oxygen compatibility pool enters sludge concentration tank 10；The supernatant of sedimentation basin 11
Liquid enters Rinsing Area 12, and the returned sludge after precipitating enters sludge concentration tank 10；The supernatant of sludge concentration tank 10 passes through supernatant
Liquid return pipe 8 is sent to anoxic pond 3, and the sludge after concentration is sent to preposition anoxic pond 9, then enters anaerobism from preposition anoxic pond 9 again
Pond 4.In this way, denitrification on the one hand can be carried out, dissolved oxygen and nitric acid in reflux thickened sludge on the other hand can be first consumed
Salt, the anoxic then to carry out put phosphorus and provide more favorable condition.Sewage is after above-mentioned process from 13 row of water outlet
Out, sludge, phegma etc. continue to participate in subsequent sewage disposal process；This process is directed to the biggish feelings of sewage inlet
Condition, when sewage inlet is smaller, most sewage is directly entered that oxygen compatibility pool being currently running, oxygen compatibility pool after treatment
It is discharged into sedimentation basin 11, Rinsing Area 12, through water outlet 13, preposition anoxic pond 9, anaerobic pond 4, another oxygen compatibility pool are then only few
It measures sewage to enter, conserves the stage into small flow.
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 (8)
1. integrated rural sewage-treatment plant associated with a kind of AAO and SBR technique, which is characterized in that including along drainage flow
What direction was set gradually：Main water inlet tube, anaerobic pond, anoxic pond, aerobic tank, the first oxygen compatibility pool/second oxygen compatibility pool, go out sedimentation basin
The mouth of a river, the upstream of the anaerobic pond are equipped with preposition anoxic pond, and the upstream of the preposition anoxic pond is equipped with sludge concentration tank；It is described heavy
Sludge in the pond of shallow lake is delivered in the sludge concentration tank, the partial reflux liquid difference of first oxygen compatibility pool and the second oxygen compatibility pool
The sludge concentration tank is introduced, the supernatant of the sludge concentration tank introduces the anoxic pond, the sludge of the sludge concentration tank
Enter the anaerobic pond through the preposition anoxic pond；First oxygen compatibility pool and the second oxygen compatibility pool alternate run；
First oxygen compatibility pool and the second oxygen compatibility pool are equipped with flow-disturbing partition.
2. integrated rural sewage-treatment plant according to claim 1, which is characterized in that the both ends of the flow-disturbing partition
It is connected with the side wall of corresponding oxygen compatibility pool, there are the gaps passed through for fluid between the flow-disturbing partition and the bottom plate of oxygen compatibility pool.
3. integrated rural sewage-treatment plant according to claim 2, which is characterized in that the flow-disturbing partition is vertically set
It sets.
4. integrated rural sewage-treatment plant according to claim 2, which is characterized in that on drainage flow direction,
The flow-disturbing partition is obliquely installed.
5. integrated rural sewage-treatment plant according to claim 4, which is characterized in that the bottom end of the flow-disturbing partition
It is tilted to the downstream in drainage flow direction.
6. integrated rural sewage-treatment plant according to claim 1-5, which is characterized in that further include tank
Body, it is the main water inlet tube, anaerobic pond, anoxic pond, aerobic tank, the first oxygen compatibility pool, the second oxygen compatibility pool, sedimentation basin, water outlet, preposition
Anoxic pond, sludge concentration tank are arranged in the tank body.
7. integrated rural sewage-treatment plant according to claim 6, which is characterized in that the aerobic tank is arranged in institute
State one end of tank body, the sedimentation basin and water outlet are arranged in the other end of the tank body, first oxygen compatibility pool and second simultaneous
Oxygen pond is arranged side by side, and first oxygen compatibility pool connects with the aerobic tank with one end of the second oxygen compatibility pool, the described first simultaneous oxygen
Pond connects with the sedimentation basin with the other end of the second oxygen compatibility pool, and the anoxic pond, anaerobic pond, preposition anoxic pond, sludge are dense
Contracting pond is sequentially arranged the region between first oxygen compatibility pool and the second oxygen compatibility pool, the anoxic pond and the aerobic tank phase
It connects, the preposition anoxic pond connects with the sedimentation basin.
8. integrated rural sewage-treatment plant according to claim 1, which is characterized in that it further include Rinsing Area, it is described
Rinsing Area is arranged between the sedimentation basin and water outlet, and the supernatant of the sedimentation basin enters the water outlet through the Rinsing Area
Mouthful.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810994005.9A CN108892241A (en) | 2018-08-29 | 2018-08-29 | Integrated rural sewage-treatment plant associated with a kind of AAO and SBR technique |
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Cited By (2)
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| CN112093901A (en) * | 2020-09-14 | 2020-12-18 | 陕西新泓水艺环境科技有限公司 | Sewage treatment device and sewage treatment method thereof |
| CN112592001A (en) * | 2020-12-28 | 2021-04-02 | 马鞍山奥柯环保科技发展有限公司 | Treatment facility suitable for rural domestic sewage |
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| CN112592001A (en) * | 2020-12-28 | 2021-04-02 | 马鞍山奥柯环保科技发展有限公司 | Treatment facility suitable for rural domestic sewage |
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