CN108483661A - Sewage disposal system - Google Patents
Sewage disposal system Download PDFInfo
- Publication number
- CN108483661A CN108483661A CN201810622183.9A CN201810622183A CN108483661A CN 108483661 A CN108483661 A CN 108483661A CN 201810622183 A CN201810622183 A CN 201810622183A CN 108483661 A CN108483661 A CN 108483661A
- Authority
- CN
- China
- Prior art keywords
- area
- anoxic
- aerobic
- zone
- conveying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- 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
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses sewage disposal systems, are related to technical field of sewage.Including pre- anoxic zone, anaerobic zone, one area of anoxic, an aerobic area, 2nd area of anoxic, aerobic 2nd area, settling zone, the first conveying assembly, the second conveying assembly, the first reflux assembly and the second reflux assembly；It is equipped with agitating device in pre- anoxic zone, 2nd area of anaerobic zone, one area of anoxic and anoxic, aerator is equipped in an aerobic area and aerobic 2nd area, the second reflux assembly includes the first sub- reflux assembly and the second sub- reflux assembly；First conveying assembly is connected to pre- anoxic zone, one area of anoxic and 2nd area of anoxic；Second conveying assembly is connected to the aerator in an aerobic area and the aerator in aerobic 2nd area respectively；First reflux assembly is connected to settling zone and one area of anoxic；First sub- reflux assembly is connected to one area of anoxic and pre- anoxic zone；Second sub- reflux assembly is connected to aerobic 2nd area and 2nd area of anoxic；The sewage disposal system can improve the removal efficiency to nitrogen phosphorus in sewage.
Description
Technical field
The present invention relates to technical field of sewage, more particularly, to sewage disposal system.
Background technology
Currently, common villages and small towns sewage disposal technology is divided into two classes, i.e. eco-treatment technology and biological treatment in principle
Technology, wherein eco-treatment technology is using the function of soil-plant system purification sewage, and purification mechanism includes soil
Filtering retention, physics and the works such as chemisorption, chemical breakdown, plant and microorganism panning, the decomposition and inversion of microorganism, evaporation
With based on artificial swamp, land treatment system and stabilization pond, although eco-treatment technology capital cost and operating cost are opposite
It is relatively low, but it takes up a large area, climate influence is big, sense organ is poor, therefore limit its large-scale application；Biologic treating technique
It is so that it is stablized, innoxious processing method, packet by the nutriments such as microbial degradation and conversion organic pollution, nitrogen phosphorus
Include aerobic and Anaerobic biotreatment method；Wherein, Aerobic biological process due to its reaction speed it is very fast, efficient and more advantage,
The common technique of Aerobic biological process mainly active sludge and biofilm two major classes, but biofilm due to its aeration,
The processes such as backwash are both needed to electrical equipment, and power consumption is larger；Filler easily blocks and needs to backwash, and otherwise can influence effluent quality,
And backwash duration, water consumption is big, and initial stage effluent quality can not ensure after backwash；The environment such as easy raw mosquitos and flies, easy stink
Hygienic issues, it is unsatisfactory for the sewage disposal in villages and small towns.
Rule of thumb, villages and small towns wastewater influent low ratio of carbon to ammonium phenomenon is very universal, traditional handicraft due to itself limitation and into
Water carbon source lacks the efficient stable removal for being difficult to realize nitrogen phosphorus；At present frequently with method be additional carbon, such as methanol, sodium acetate
Deng there is complicated for operation, cost is higher, easily causes the shortcomings of secondary pollution for additional carbon so that the efficiency of denitrogenation dephosphorizing is simultaneously
It is not high.
Invention content
The purpose of the present invention is to provide sewage disposal system, which can improve to nitrogen phosphorus in sewage
Removal efficiency.
To achieve the above object, the present invention provides following technical scheme：
According to an aspect of the present invention, sewage disposal system is provided, including pre- anoxic zone, anaerobic zone, one area of anoxic, aerobic
One area, 2nd area of anoxic, aerobic 2nd area, settling zone, the first conveying assembly, the second conveying assembly, the first reflux assembly and second
Reflux assembly；Wherein, the pre- anoxic zone, be equipped in 2nd area of the anaerobic zone, one area of the anoxic and the anoxic and stir
Device is mixed, aerator is equipped in an aerobic area and aerobic 2nd area, second reflux assembly includes the first son
Reflux assembly and the second sub- reflux assembly；
It is the pre- anoxic zone, the anaerobic zone, one area of the anoxic, an aerobic area, 2nd area of the anoxic, described good
2nd area of oxygen and the settling zone are arranged in order setting and adjacent communicate between the two；
First conveying assembly be connected to respectively with the pre- anoxic zone, one area of the anoxic and 2nd area of the anoxic with
Sewage is sent to the pre- anoxic zone, one area of the anoxic and the main conveying fluid path；
Second conveying assembly respectively with the aerator in an aerobic area and the exposure in aerobic 2nd area
Device of air is connected to sending outside air to the aerator；
First reflux assembly is connected to respectively with the settling zone and one area of the anoxic with will be in the settling zone
Sludge reflux to one area of the anoxic in；
The first sub- reflux assembly is connected to respectively with one area of the anoxic and the pre- anoxic zone with by the anoxic
In one area in mixed-liquor return to the pre- anoxic zone；
The second sub- reflux assembly is connected to respectively with aerobic 2nd area and 2nd area of the anoxic with will be described aerobic
In 2nd area in mixed-liquor return to 2nd area of the anoxic.
Further, first conveying assembly include main conveying fluid path, liquid pump, first conveying fluid path, second
It conveys fluid path and third branch conveys fluid path；
The liquid pump is serially connected in the main conveying fluid path；
First conveying fluid path is connected to the pre- anoxic zone and the main conveying fluid path respectively；Described second
Conveying fluid path is connected to one area of the anoxic and the main conveying fluid path respectively；Third branch conveying fluid path respectively with it is described
2nd area of anoxic and the connection of 2nd area of the anoxic.
Further, second conveying assembly includes main conveying gas circuit, air pump, first conveying gas circuit and second
Convey gas circuit；
The air pump is serially connected in the main conveying gas circuit；
It is described first conveying gas circuit one end be plugged in an aerobic area and with the exposure in an aerobic area
Device of air is connected to, and the other end is connected to the main conveying gas circuit；
It is described second conveying gas circuit one end be plugged in aerobic 2nd area and with the exposure in aerobic 2nd area
Device of air is connected to, and the other end is connected to the main conveying gas circuit.
Further, second conveying assembly further includes first gas flowmeter and second gas flowmeter；
The first gas flowmeter is serially connected in first conveying gas circuit, and the second gas flowmeter is serially connected in
In second conveying gas circuit.
Further, the aerator is micro-hole aerator or tube aerator.
Further, first reflux assembly includes return line and sludge reflux pump；
The sludge reflux pump is serially connected on the return line；
The return line is connected to the settling zone and one area of the anoxic respectively.
Further, the described first sub- reflux assembly includes the first reflux fluid path and first circulation liquid pump, and described second
Sub- reflux assembly includes the second reflux fluid path and second circulation liquid pump；
The first circulation liquid pump is serially connected in first phegma road, and the second circulation liquid pump is serially connected in described the
Two phegmas road；
The first reflux fluid path is connected to one area of the anoxic and the pre- anoxic zone respectively；Second phegma
Road is connected to aerobic 2nd area and 2nd area of the anoxic respectively.
Further, training wall and effluent weir are equipped in the settling zone.
Further, the pre- anoxic zone and the anaerobic zone are disposed adjacent, and are equipped with share common sidewalls therebetween,
In, offer the cave of debouchure in the share common sidewalls；
The pre- anoxic zone is connected to by the cave of debouchure with the anaerobic zone.
Further, the agitating device is rotary-cut vortex blender or diving mixer.
Compared with prior art, beneficial effects of the present invention are：
Sewage disposal system according to the present invention, for the sewage disposal system, the first conveying assembly is by regulating reservoir
Or the sewage in sump is sent respectively in 2nd area of pre- anoxic zone, one area of anoxic and anoxic, pre- anoxic zone, one area of anoxic with
And agitated device stirring in 2nd area of anoxic；Sewage in pre- anoxic zone enters the degradation that anaerobic zone carries out organic matter, simultaneously
PolyP bacteria accumulates poly-hydroxy fatty acid and discharges phosphate；Sewage in anaerobic zone enters one area of anoxic, while the first reflux
Component is by the sludge reflux in settling zone to one area of anoxic, and sewage mixes in one area of anoxic with the returned sludge of settling zone, micro-
Using the nitrate nitrogen in the organic matter and phegma in water inlet under the action of biology, carries out denitrification and go to denitrogenate, while degradation portion
Divide organic matter；After the sewage in one area of anoxic enters an aerobic area, the aerator in an aerobic area supplies oxygen, in activated sludge
Microorganism is under aerobic environment, and the organic matter in sewage is aoxidized, ammonia nitrogen is nitrified, phosphorus is absorbed by polyP bacteria excess；It is at this
It is provided with two-stage anaerobic-aerobic in system to replace, the sewage in an aerobic area is directly entered 2nd area of anoxic, while the second son reflux
Component by mixed-liquor return to 2nd area of anoxic in aerobic 2nd area, the sewage in 2nd area of anoxic sequentially enter aerobic 2nd area and
Settling zone is precipitated in settling zone；In the process, the first sub- reflux assembly is by the mixed-liquor return in one area of anoxic to pre- anoxic zone, by
Contain more dissolubility biochemical oxygen demand (BOD) (BOD) in the mixed liquor of reflux, and nitrate is seldom, by being carried out in anaerobism section
Hydrolysis of organic matter reaction provide optimal condition, from the foregoing, it will be observed that the sewage disposal system is by segmental influent mode and UCT works
Skill couples, and improves system utilization of carbon source rate, it is ensured that more carbon sources are utilized by denitrification denitrogenation and polyP bacteria anaerobic phosphorus release, together
When prevent nitrate nitrogen from entering anaerobic pond and influence system phosphor-removing effect, to improve to the removal efficiency of nitrogen phosphorus in sewage.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the flow chart of sewage disposal system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of aerator in sewage disposal system provided in an embodiment of the present invention；
Fig. 3 is the schematic cross-sectional view of Fig. 2.
Icon：The pre- anoxic zones 10-；The anaerobic zones 20-；One area of 30- anoxics；The aerobic areas 40-；2nd area of 50- anoxics；60- is good
2nd area of oxygen；The settling zones 70-；701- training walls；702- effluent weirs；The first conveying assemblies of 80-；The main conveying fluid path of 801-；802-
One conveying fluid path；Second conveying fluid path of 803-；804- third branch conveys fluid path；The second conveying assemblies of 90-；901- master is defeated
It supplies gas road；902- air pumps；First conveying gas circuit of 903-；Second conveying gas circuit of 904-；905- first gas flowmeters；
906- second gas flowmeters；The first reflux assemblies of 100-；1001- return lines；1002- sludge reflux pumps；The first sons of 110-
Reflux assembly；The reflux fluid path of 1101- first；1102- first circulation liquid pumps；The second sub- reflux assemblies of 120-；1201- second flows back
Fluid path；1202- second circulation liquid pumps；130- agitating devices；140- aerators；1401- aerator ontologies；1402- diaphragms；
1403- air storing cavities；1404- micropores；1405- air inlet pipe；1406- rubber non-return bodies；1407- non-returns lower end body；150- common sides
Wall；The 1501- caves of debouchure.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment
According to an aspect of the present invention, sewage disposal system is provided, as shown in Figure 1, including pre- anoxic zone 10, anaerobic zone
20, one area 30 of anoxic, an aerobic area 40, two area 50 of anoxic, aerobic 2nd area 60, settling zone 70, the first conveying assembly 80, second
Conveying assembly 90, the first reflux assembly 100 and the second reflux assembly；Wherein, pre- anoxic zone 10, anaerobic zone 20, one area of anoxic
30 and two area 50 of anoxic in be equipped with agitating device 130, aerator is equipped in an aerobic area 40 and aerobic 2nd area 60
140, the second reflux assembly includes the first sub- reflux assembly 110 and the second sub- reflux assembly 120；
Pre- anoxic zone 10, anaerobic zone 20, one area 30 of anoxic, an aerobic area 40, two area 50 of anoxic, aerobic 2nd area 60 and heavy
Shallow lake area 70 is arranged in order setting and adjacent communicates between the two；
First conveying assembly 80 is connected to pre- anoxic zone 10, one area 30 of anoxic and two area 50 of anoxic to send sewage respectively
To two area 50 of pre- anoxic zone 10, one area 30 of anoxic and anoxic；
Second conveying assembly 90 respectively with the aerator 140 in an aerobic area 40 and the aeration in aerobic 2nd area 60
Device 140 is connected to sending outside air to aerator 140；
First reflux assembly 100 is connected to respectively with settling zone 70 and one area 30 of anoxic with by the sludge in settling zone 70
It is back in one area 30 of anoxic；
First sub- reflux assembly 110 is connected to respectively with one area 30 of anoxic and pre- anoxic zone 10 will be mixed in one area 30 of anoxic
Liquid is closed to be back in pre- anoxic zone 10；
Second sub- reflux assembly 120 is connected to respectively with aerobic 2nd area 60 and two area 50 of anoxic will be mixed in aerobic 2nd area 60
Liquid is closed to be back in two area 50 of anoxic.
Sewage disposal system according to the present invention, for the sewage disposal system, the first conveying assembly is by regulating reservoir
Or the sewage in sump is sent respectively in two area 50 of pre- anoxic zone 10, one area 30 of anoxic and anoxic, in pre- anoxic zone 10, is lacked
Agitated device 130 stirs in two area 50 of one area 30 of oxygen and anoxic；Sewage in pre- anoxic zone 10 enter anaerobic zone 20 into
The degradation of row organic matter, while polyP bacteria accumulates poly-hydroxy fatty acid and discharges phosphate；Sewage in anaerobic zone 20 enters
One area 30 of anoxic, at the same the first reflux assembly 100 by the sludge reflux in settling zone 70 to one area 30 of anoxic, sewage is in anoxic one
Area 30 is mixed with the returned sludge of settling zone 70, and the nitre in the organic matter and phegma in water inlet is utilized under the action of microorganism
State nitrogen carries out denitrification and goes to denitrogenate, while partial organic substances of degrading；After the sewage in one area 30 of anoxic enters an aerobic area 40,
Aerator 140 in an aerobic area 40 supplies oxygen, and the microorganism in activated sludge is under aerobic environment, the organic matter quilt in sewage
Oxidation, ammonia nitrogen is nitrified, phosphorus is absorbed by polyP bacteria excess；It is provided with two-stage anaerobic-aerobic within the system to replace, aerobic one
Sewage in area 40 is directly entered two area 50 of anoxic, while the second sub- reflux assembly 120 is by mixed-liquor return in aerobic 2nd area 60
To two area 50 of anoxic, the sewage in two area 50 of anoxic sequentially enters aerobic 2nd area 60 and settling zone 70, in settling zone 70
Precipitation；Meanwhile first sub- reflux assembly 110 by the mixed-liquor return in one area 30 of anoxic to pre- anoxic zone 10, it is mixed due to reflux
It closes and contains more dissolubility biochemical oxygen demand (BOD) (BOD) in liquid, and nitrate is seldom, by the organic matter water carried out in anaerobism section
Solution reaction provides optimal condition, from the foregoing, it will be observed that the sewage disposal system couples segmental influent mode and UCT techniques, carries
High system utilization of carbon source rate, it is ensured that more carbon sources are utilized by denitrification denitrogenation and polyP bacteria anaerobic phosphorus release, while preventing nitre
Hydrochlorate nitrogen enters anaerobic pond and influences system phosphor-removing effect, to improve the removal efficiency to nitrogen phosphorus in sewage；
It should be noted that without additionally adding any chemical drugs during the sewage disposal system treated sewage
Agent will not cause secondary pollution；
Wherein, agitating device 130 is rotary-cut vortex blender or diving mixer.
According to a kind of embodiment of sewage disposal system of the present invention, as shown in Figure 1, the first conveying assembly 80 includes that master is defeated
Liquor charging road 801, liquid pump, first conveying fluid path, 802, second conveying fluid path 803 and third branch convey fluid path 804；
Liquid pump is serially connected in main conveying fluid path 801；
First conveying fluid path 802 is connected to pre- anoxic zone 10 and main conveying fluid path 801 respectively；Second conveying fluid path
803 are connected to one area 30 of anoxic and main conveying fluid path 801 respectively；Third branch convey fluid path 804 respectively with two area 50 of anoxic with
And main conveying fluid path 801 is connected to.
Sewage disposal system according to the present invention, specifically, start liquid pump, and conveying fluid path 801 conveys based on liquid pump
Sewage provides power, main conveying fluid path 801 by sewage transport to first conveying fluid path 802, second convey fluid path 803 and
Third branch conveys fluid path 804, and sewage is delivered to by main conveying fluid path 801 in pre- anoxic zone 10 by first conveying fluid path 802,
Sewage is delivered to by main conveying fluid path 801 in one area 30 of anoxic by second conveying fluid path 803, and third branch conveys fluid path 804 will
Sewage is delivered to by main conveying fluid path 801 in two area 50 of anoxic；
It should be noted that since sewage itself has gravity, convenient for flowing down from high to low, therefore, first conveying liquid
Road 802 is connected to 10 top of pre- anoxic zone, and second conveying fluid path 803 is connected to one area of anoxic, 30 top, and third branch conveys liquid
Road 804 is connected to 2nd area of anoxic, 50 top.
According to a kind of embodiment of sewage disposal system of the present invention, as shown in Figure 1, the second conveying assembly 90 includes that master is defeated
It supplies gas road 901, the conveying gas circuits 903 of air pump 902, first and second conveying gas circuit 904；
Air pump 902 is serially connected in main conveying gas circuit 901；
The one end of first conveying gas circuit 903 is plugged in an aerobic area 40 and is filled with the aeration in an aerobic area 40
140 connections are set, the other end is connected to main conveying gas circuit 901；
The one end of second conveying gas circuit 904 is plugged in aerobic 2nd area 60 and is filled with the aeration in aerobic 2nd area 60
140 connections are set, the other end is connected to main conveying gas circuit 901.
Sewage disposal system according to the present invention, specifically, booster air pump 902, conveying gas circuit 901 is defeated based on air pump 902
Body of supplying gas provides power, and outside air is delivered to first conveying gas circuit 903 and second conveying gas by main conveying gas circuit 901
Outside air is delivered to the aerator in an aerobic area 40 by road 904, first conveying gas circuit 903 by main conveying gas circuit 901
In 140, outside air is delivered to the aeration in main conveying gas circuit 901 by second conveying gas circuit 904 by main conveying gas circuit 901
In device 140.
Preferably, the second conveying assembly 90 further includes first gas flowmeter 905 and second gas flowmeter 906, and
One gas flowmeter 905 is serially connected in first conveying gas circuit 903, and second gas flowmeter 906 is serially connected in second conveying gas
On road 904；First gas flowmeter 905 is able to record the gas flow showed access into the aerator 140 in an aerobic area 40,
Second gas flowmeter 906 is able to record the gas flow showed access into the aerator 140 in aerobic 2nd area 60, so as to
Preferably control enters the gas flow in the aerator 140 in an aerobic area 40 and enters the aeration in aerobic 2nd area 60
Gas flow in device 140 so that the aerator 140 in aerator 140 and aerobic 2nd area 60 in an aerobic area 40
Aeration effect, further increase the removal efficiency to nitrogen phosphorus in sewage.
According to a kind of embodiment of sewage disposal system of the present invention, as shown in FIG. 2 and 3, aerator 140 is micro-
Hole aerator or tube aerator.
Sewage disposal system according to the present invention, when aerator 140 is micro-hole aerator, specifically, micro-pore aeration
Device includes the diaphragm 1402 that aerator ontology 1401 and periphery are tightly connected with aerator ontology 1401, diaphragm 1402 and exposure
Constitute air storing cavity 1403 between gas device ontology 1401, diaphragm 1402 is equipped with through thereon, lower face and connects air storing cavity 1403
Micropore 1404, aerator ontology 1401 are equipped with the air inlet pipe 1405 for connecting air storing cavity 1403, air inlet pipe 1405 and first conveying
Gas circuit 903 or second conveying gas circuit 904 are connected to；Wherein, check device is equipped in air storing cavity 1403, check device includes rubber
Glue non-return body 1406, and connect the non-return lower end body 1407 of air-flow between air storing cavity 1403 and air inlet pipe 1405, rubber non-return
1406 upper end of body is tightly connected with diaphragm 1402, and lower end and the upper end sealing of non-return lower end body 1407 touch, non-return lower end body
1407 match with 1405 size of air inlet pipe, and its lower end is connect with air inlet pipe 1405；
The 140 specific course of work of aerator is as follows：
First conveying gas circuit 903 conveys air to air inlet pipe 1405, and air enters non-return lower end by air inlet pipe 1405
In body 1407, the gas pressure in non-return lower end body 1407 makes rubber non-return body 1406 and non-return in rubber non-return body 1406
No longer sealing touches between lower end body 1407, and air then enters in air storing cavity 1403, with the sky in input air storing cavity 1403
Gas increases, and the air pressure for acting on diaphragm 1402 increases, to keep diaphragm 1402 convex and rubber non-return body 1406 is driven to move up, film
Micropore 1404 on piece 1402 is opened, and air is entered by micropore 1404 in sewage；First conveying gas circuit 903 stops to air inlet
Pipe 1405 conveys air, with the discharge of air in air storing cavity 1403, the air pressure in air storing cavity 1403 and non-return lower end body 1407
It reduces, under the drive of diaphragm 1402, rubber non-return body 1406 moves downward, rubber non-return body 1406 and non-return lower end body
1407, which restore sealing, touches, and can effectively prevent sewage and flows backward in aerator 140, avoids sewage and enter aerator and first
Branch conveys in gas circuit 903.
According to a kind of embodiment of sewage disposal system of the present invention, as shown in Figure 1, the first reflux assembly includes return duct
Road 1001 and sludge reflux pump 1002；
Sludge reflux pump 1002 is serially connected on return line 1001；
Return line 1001 is connected to settling zone 70 and one area 30 of anoxic respectively.
Sewage disposal system according to the present invention specifically starts sludge reflux pump 1002, and sludge reflux pump 1002 is back
Flow tube road 1001 conveys sludge and provides power, return line 1001 by the sludge reflux in settling zone 70 to one area 30 of anoxic,
The sludge concentration of raising system, provides nitrate nitrogen；
It should be noted that since sludgd deposition is in the bottom of settling zone 70, for the ease of sludge from settling zone 70
It is back to one area 30 of anoxic, return line 1001 is connected to 70 bottom of settling zone and one area of anoxic, 30 bottom respectively.
According to a kind of embodiment of sewage disposal system of the present invention, as shown in Figure 1, the first sub- reflux assembly includes first
The fluid path 1101 that flows back and first circulation liquid pump 1102, the second sub- reflux assembly include that the second reflux fluid path 1201 and second follow
Ring liquid pump 1202；
First circulation liquid pump 1102 is serially connected in the first reflux fluid path 1101, and second circulation liquid pump 1202 is serially connected in second
In the fluid path 1201 that flows back；
First reflux fluid path 1101 is connected to one area 30 of anoxic and pre- anoxic zone 10 respectively；Second reflux fluid path 1201 is divided
It is not connected to aerobic 2nd area 60 and two area 50 of anoxic.
Sewage disposal system according to the present invention specifically starts first circulation liquid pump 1102, and first circulation liquid pump is the
One reflux fluid path 1101 convey mixed liquor provide power, first reflux fluid path 1101 by the mixed-liquor return in one area 30 of anoxic extremely
In pre- anoxic zone 10；Start second circulation liquid pump 1202, second circulation liquid pump 1202 is the second reflux conveying mixing of fluid path 1201
Liquid provides power, and the second reflux fluid path 1201 will be in the mixed-liquor return in aerobic 2nd area 60 to two area 50 of anoxic.
It should be noted that since mixed liquor itself has gravity, convenient for flowing down from high to low, therefore, the first phegma
Road 1101 is connected to one area of anoxic, 30 bottom and 10 bottom of pre- anoxic zone respectively；Second reflux fluid path 1201 is respectively with aerobic two
60 bottom of area and the connection of 2nd area of anoxic, 50 bottom.
According to a kind of embodiment of sewage disposal system of the present invention, as shown in Figure 1, being equipped with training wall in settling zone 70
701 and effluent weir 702.
Sewage disposal system according to the present invention, the training wall 701 in settling zone 70 can reduce flowing in settling zone 70
The dead angle of field and the main function of the effluent weir 702 in settling zone 70 not only control the elevation of precipitation pool inner water, also to precipitation
Pool inner water stream has been uniformly distributed direct influence.
According to a kind of embodiment of sewage disposal system of the present invention, as shown in Figure 1, pre- anoxic zone 10 and anaerobic zone
20 are disposed adjacent, and are equipped with share common sidewalls 150 therebetween, wherein the cave of debouchure 1501 is offered in share common sidewalls 150；
Pre- anoxic zone 10 is connected to by the cave of debouchure 1501 with anaerobic zone 20.
Sewage disposal system according to the present invention, for the sewage disposal system, pre- anoxic zone 10 and anaerobic zone 20
It is disposed adjacent, is equipped with share common sidewalls 150 therebetween, offers the cave of debouchure 1501 in share common sidewalls 150, the cave of debouchure 1501
In 150 bottom of share common sidewalls；Anaerobic zone 20 is disposed adjacent with one area 30 of anoxic, is equipped with share common sidewalls, share common sidewalls therebetween
On offer the cave of debouchure, which is located at the top of share common sidewalls；One area 30 of anoxic is disposed adjacent with an aerobic area 40, the two it
Between be equipped with share common sidewalls, offer the cave of debouchure in share common sidewalls, which is located at share common sidewalls bottom；An aerobic area 40 with lack
Two area 50 of oxygen is disposed adjacent, and is equipped with share common sidewalls therebetween, the cave of debouchure is offered in share common sidewalls, which, which is located at, shares
Top side wall；Two area 50 of anoxic is disposed adjacent with aerobic 2nd area 60, is equipped with share common sidewalls therebetween, is opened up in share common sidewalls
There is the cave of debouchure, which is located at share common sidewalls bottom；Aerobic 2nd area 60 is disposed adjacent with settling zone 70, is equipped with therebetween altogether
With side wall, the cave of debouchure is offered in share common sidewalls, which is located at the top of share common sidewalls.
For the sewage disposal system, the detailed process of treated sewage is as follows in actual scene：
Certain domestic sewage of villages and small towns be averaged carbon-nitrogen ratio be 5.2, equipment day output be 30t；Sanitary sewage by sump or
After regulating reservoir, 4 are pressed by liquid pump:3:3 distribution ratio of liquid flow respectively enters in pre- anoxic zone 10, is in one area 30 of anoxic and scarce
In two area 50 of oxygen；Enter the degradation that anaerobic zone 20 carries out organic matter into the sewage of pre- anoxic zone 10 from the cave of debouchure of bottom, together
When polyP bacteria accumulation poly-hydroxy fatty acid and discharge phosphate, subsequently enter one area 30 of anoxic and the returned sludge of settling zone 70 be mixed
It closes, using the nitrate nitrogen in the organic matter and phegma in water inlet under the action of microorganism, carries out denitrification and go to denitrogenate, simultaneously
Degradation partial organic substances；Into after an aerobic area 40, the microorganism in activated sludge is under aerobic environment, the organic matter in sewage
It is aoxidized, ammonia nitrogen is nitrified, phosphorus is absorbed by polyP bacteria excess；It is provided with two-stage anaerobic-aerobic within the system to replace, aerobic one
The water outlet in area 40 is directly entered two area 50 of anoxic, and it is not necessary that mixed-liquor return is arranged, aerobic 2nd areas, 60 mixed-liquor return is only arranged extremely
Two area 50 of anoxic；Sewage in two area 50 of anoxic sequentially enters aerobic 2nd area 60 and settling zone 70, heavy in settling zone 70
It forms sediment；Meanwhile the mixed liquor in one area 30 of anoxic is back to pre- anoxic zone 10 by first circulation liquid pump 1102, due to the mixing of reflux
Contain more dissolubility BOD in liquid, and nitrate is seldom, is provided most by the hydrolysis of organic matter reaction carried out in anaerobism section
Excellent condition；Wherein,
The volume ratio of anaerobic/anoxic/aerobic zone is 2:4:4,10 volume of pre- anoxic zone is 1m, 20 volume of anaerobic zone be 2m,
One area of anoxic, 30 volume is 1.5m, aerobic 40 volume of an area is 2m, 2nd area of anoxic, 50 volume is 1.5m, aerobic 2nd areas, 60 volume is
2m；Total hrt is 8h；
Control the oxygen parameter (DO) of anaerobism and the DO of anoxic zone maintains 0.1-0.15mg/L, and the DO of aerobic zone is maintained
In 1.5-3.5mg/L；
The return sludge ratio in settling zone 70 to one area 30 of anoxic is 100%, the reflux in one area 30 of anoxic to pre- anoxic zone 10
Than being 75%, the reflux ratio in aerobic 2nd area 60 to two area 50 of anoxic is 100%, and the sludge age of equipment can maintain 25d or so；
After the system continuous operation, it is obtaining the result shows that, whole system sludge concentration is stably maintained at 3000-
Between 3500mg/L, effluent quality COD (COD), nitrogen pool (TN), total phosphorus content (TP) reach GB18918-2002 level-ones A
Discharge standard.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：It is still
Either which part or all technical features can be carried out so that technical scheme described in the above embodiments is modified
Equivalent replacement；And these modifications or replacements, it does not separate the essence of the corresponding technical solution various embodiments of the present invention technical side
The range of case.
Claims (10)
1. sewage disposal system, which is characterized in that including pre- anoxic zone, anaerobic zone, one area of anoxic, an aerobic area, 2nd area of anoxic,
Aerobic 2nd area, settling zone, the first conveying assembly, the second conveying assembly, the first reflux assembly and the second reflux assembly；Wherein,
The pre- anoxic zone, the anaerobic zone, one area of the anoxic and the anoxic are equipped with agitating device in 2nd areas, described aerobic
Aerator is equipped in one area and aerobic 2nd area, second reflux assembly includes the first sub- reflux assembly and second
Sub- reflux assembly；
The pre- anoxic zone, the anaerobic zone, one area of the anoxic, an aerobic area, 2nd area of the anoxic, described aerobic two
Area and the settling zone are arranged in order setting and adjacent communicate between the two；
First conveying assembly is connected to respectively with the pre- anoxic zone, one area of the anoxic and 2nd area of the anoxic with will be dirty
Water is sent to 2nd area of the pre- anoxic zone, one area of the anoxic and the anoxic；
Second conveying assembly is filled with the aerator in an aerobic area and the aeration in aerobic 2nd area respectively
Connection is set sending outside air to the aerator；
First reflux assembly is connected to respectively with the settling zone and one area of the anoxic with by the dirt in the settling zone
Mud is back in one area of the anoxic；
The first sub- reflux assembly is connected to respectively with one area of the anoxic and the pre- anoxic zone with by one area of the anoxic
In interior mixed-liquor return to the pre- anoxic zone；
The second sub- reflux assembly is connected to respectively with aerobic 2nd area and 2nd area of the anoxic with by aerobic 2nd area
In interior mixed-liquor return to 2nd area of the anoxic.
2. sewage disposal system according to claim 1, which is characterized in that first conveying assembly includes main conveying liquid
Road, liquid pump, first conveying fluid path, second conveying fluid path and third branch convey fluid path；
The liquid pump is serially connected in the main conveying fluid path；
First conveying fluid path is connected to the pre- anoxic zone and the main conveying fluid path respectively；Second conveying
Fluid path is connected to one area of the anoxic and the main conveying fluid path respectively；Third branch conveying fluid path respectively with the anoxic
2nd area and the main conveying fluid path connection.
3. sewage disposal system according to claim 1, which is characterized in that second conveying assembly includes main conveying gas
Road, air pump, first conveying gas circuit and second conveying gas circuit；
The air pump is serially connected in the main conveying gas circuit；
The one end of first conveying gas circuit is plugged in an aerobic area and is filled with the aeration in an aerobic area
Connection is set, the other end is connected to the main conveying gas circuit；
The one end of second conveying gas circuit is plugged in aerobic 2nd area and is filled with the aeration in aerobic 2nd area
Connection is set, the other end is connected to the main conveying gas circuit.
4. sewage disposal system according to claim 3, which is characterized in that second conveying assembly further includes the first gas
Flowmeter body and second gas flowmeter；
The first gas flowmeter is serially connected in first conveying gas circuit, and the second gas flowmeter is serially connected in described
In second conveying gas circuit.
5. sewage disposal system according to claim 3, which is characterized in that the aerator is micro-hole aerator or pipe
Formula aerator.
6. sewage disposal system according to claim 1, which is characterized in that first reflux assembly includes return line
And sludge reflux pump；
The sludge reflux pump is serially connected on the return line；
The return line is connected to the settling zone and one area of the anoxic respectively.
7. sewage disposal system according to claim 1, which is characterized in that the first sub- reflux assembly includes first time
Flow liquid road and first circulation liquid pump, second group of sub- reflux assembly include the second reflux fluid path and second circulation liquid pump；
The first circulation liquid pump is serially connected in the first phegma road, and the second circulation liquid pump is serially connected in described second time
Flow liquid road；
The first reflux fluid path is connected to one area of the anoxic and the pre- anoxic zone respectively；The second reflux fluid path point
It is not connected to aerobic 2nd area and 2nd area of the anoxic.
8. sewage disposal system according to claim 1, which is characterized in that be equipped with training wall and water outlet in the settling zone
Weir.
9. sewage disposal system according to claim 1, which is characterized in that the pre- anoxic zone and the anaerobic zone phase
Neighbour's setting, and it is equipped with share common sidewalls therebetween, wherein offer the cave of debouchure in the share common sidewalls；
The pre- anoxic zone is connected to by the cave of debouchure with the anaerobic zone.
10. sewage disposal system according to claim 1, which is characterized in that the agitating device is rotary-cut vortex stirring
Machine or diving mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810622183.9A CN108483661A (en) | 2018-06-15 | 2018-06-15 | Sewage disposal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810622183.9A CN108483661A (en) | 2018-06-15 | 2018-06-15 | Sewage disposal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108483661A true CN108483661A (en) | 2018-09-04 |
Family
ID=63342677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810622183.9A Pending CN108483661A (en) | 2018-06-15 | 2018-06-15 | Sewage disposal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108483661A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114988639A (en) * | 2022-06-01 | 2022-09-02 | 云南合续环境科技股份有限公司 | Sewage treatment system and method for improving biological phosphorus removal efficiency |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201077805Y (en) * | 2007-06-15 | 2008-06-25 | 北京工业大学 | A2O+A/O process seprobia denitrification phosphorus removal experiment teaching device |
| CN105461061A (en) * | 2015-12-31 | 2016-04-06 | 华南理工大学 | A<2>/O-biology synchronous nitrogen and phosphorus removal device and method for urban sewage |
| CN105753153A (en) * | 2016-03-17 | 2016-07-13 | 北京工业大学 | DEAMOX (denitrifying ammonium oxidation) based efficient biological nitrogen and phosphors removal device adopting improved A/O (anoxic/oxic) four-point step-feeding as well as application method |
| CN105906055A (en) * | 2016-06-13 | 2016-08-31 | 扬州市洁源排水有限公司 | Low-energy-consumption AAO denitrification process |
| CN208716948U (en) * | 2018-06-15 | 2019-04-09 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Sewage disposal system |
-
2018
- 2018-06-15 CN CN201810622183.9A patent/CN108483661A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201077805Y (en) * | 2007-06-15 | 2008-06-25 | 北京工业大学 | A2O+A/O process seprobia denitrification phosphorus removal experiment teaching device |
| CN105461061A (en) * | 2015-12-31 | 2016-04-06 | 华南理工大学 | A<2>/O-biology synchronous nitrogen and phosphorus removal device and method for urban sewage |
| CN105753153A (en) * | 2016-03-17 | 2016-07-13 | 北京工业大学 | DEAMOX (denitrifying ammonium oxidation) based efficient biological nitrogen and phosphors removal device adopting improved A/O (anoxic/oxic) four-point step-feeding as well as application method |
| CN105906055A (en) * | 2016-06-13 | 2016-08-31 | 扬州市洁源排水有限公司 | Low-energy-consumption AAO denitrification process |
| CN208716948U (en) * | 2018-06-15 | 2019-04-09 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Sewage disposal system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114988639A (en) * | 2022-06-01 | 2022-09-02 | 云南合续环境科技股份有限公司 | Sewage treatment system and method for improving biological phosphorus removal efficiency |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106565017B (en) | A kind of bicirculating denitrogenation dephosphorizing waste water treatment system and its method | |
| CN105330018B (en) | It is a kind of that the quick urban sewage treating device and method for realizing short distance nitration is suppressed based on free nitrous acid | |
| CN104761107A (en) | Irrigated area domestic wastewater activated iron-anaerobe coupling strengthening and nitrogen and phosphorus removal device | |
| CN105330108B (en) | Utilize anaerobism-catalytic oxidation biofilm reactor processing sanitary sewage method and processing unit | |
| CN204897650U (en) | Chemistry pharmacy effluent disposal system | |
| CN105217786B (en) | Based on DEAMOX reinforcing improvement subsection water inflow As2The apparatus and method of/O technique biological carbon and phosphorous removals | |
| CN105060598B (en) | Chemical pharmacy waste water pretreatment system | |
| CN207608464U (en) | The device of inversion A AO+MBR integrated sewage disposals | |
| CN105502826A (en) | Efficient nitrogen and phosphorus removal waste water treatment process and device | |
| CN105060627A (en) | Chemical pharmacy wastewater comprehensive treatment system | |
| CN114291964B (en) | Sewage treatment system and method for denitrification and phosphorus recovery | |
| CN105967435A (en) | Double-circulation nitrogen and phosphorus removal wastewater treatment system and process | |
| CN207986809U (en) | The AAO biochemical treatment tanks of treated sewage | |
| CN107445295A (en) | Improve oxidation ditch circulation dynode system | |
| CN110590077A (en) | Compact MBBR and super-efficient separation coupled deep nitrogen and phosphorus removal treatment system | |
| CN110171904A (en) | Based on continuous flow AAO dephosphorization and part denitrogenation series hybrid fixed biofilm activated sludge autotrophic denitrification device and method | |
| CN109970194A (en) | It is a kind of integrate Ao Baoer, biological multiplication, MBBR, MBR diversification technique sewage treatment pot | |
| CN103508635A (en) | Efficient nitrogen and phosphorus removal wastewater treatment system and process | |
| CN206970300U (en) | Nitrification liquid reflux and biological reaction pool for biological reaction pool | |
| CN105293701A (en) | Carbon source reserve type immobilized bioreactor (IBR) | |
| CN201942599U (en) | Integrated sewage treatment device adopting A/A/O micro-aerating oxidation ditch process | |
| CN208716948U (en) | Sewage disposal system | |
| CN108483661A (en) | Sewage disposal system | |
| CN108569817A (en) | A kind of coal chemical industrial waste water biochemical system processing unit | |
| CN213623764U (en) | Municipal administration sewage degree of depth nitrogen and phosphorus removal processing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |