CN106186296A - Oxidation ditch sewage purification system and using method thereof - Google Patents
Oxidation ditch sewage purification system and using method thereof Download PDFInfo
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- CN106186296A CN106186296A CN201610763779.1A CN201610763779A CN106186296A CN 106186296 A CN106186296 A CN 106186296A CN 201610763779 A CN201610763779 A CN 201610763779A CN 106186296 A CN106186296 A CN 106186296A
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- Prior art keywords
- oxidation ditch
- immobilized microorganism
- microorganism ball
- magnetic field
- magnetizing mediums
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1257—Oxidation ditches
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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
- C02F3/02—Aerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/484—Treatment of water, waste water, or sewage with magnetic or electric fields using electromagnets
-
- 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
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses oxidation ditch sewage purification system and using method thereof, including thickness grid, oxidation ditch and membrane cisterna；It is first turned on container, make in immobilized microorganism ball inflow system, then the immobilized microorganism ball using time length is collected, finally the immobilized microorganism ball of collection is made again, regulate the compression of membrane module indirect and the cycle recovered and size further according to the water flow velocity in membrane cisterna；Immobilized microorganism ball used in oxidation ditch sewage purification system and using method thereof can maintain the activity of microorganism, will not block fenestra；The effect in magnetic field can make immobilized microorganism ball be in suspended state, additionally it is possible to improves microbial activity；Immobilized microorganism ball can recycle, so that the microorganism in immobilized microorganism ball is in high activity state all the time；During the compression of membrane module indirect and recovering, make mud be difficult to be attached to film surface, and the mud having attached to membrane module surface can be removed.
Description
Technical field
The present invention relates to sewage treatment area, specially oxidation ditch sewage purification system and using method thereof.
Background technology
China is the most unbalanced country of distribution of water resources, and the water resource that each place has is the most unbalanced, totally
On be a hydropenia country, the whole nation has the city of 70% to be in exsiccosis；China or a with serious pollution state of water simultaneously
Family, annual because water pollutes the loss caused accounts for the 2% of GDP, water pollution condition is constantly aggravated so that sewage disposal and regeneration
Industry is by unprecedented concern.
Oxidation ditch utilizes continuous ring type reaction tank to make biological reaction pool, and mixed liquor is a Guan Bi aeration ditch in this reaction tank
Road circulates continuously, and oxidation ditch generally uses under the conditions of extended aeration.Oxidation ditch uses the aeration of a kind of band direction controlling
And agitating device, the material transmission horizontal velocity in reaction tank, so that the liquid being stirred circulates in closed type channel.
Oxidation ditch combines plug-flow and the feature being thoroughly mixed, and is conducive to overcoming short stream and improving buffer capacity, and oxidation ditch has significantly
Dissolved oxygen concentration gradient, is particularly well-suited to nitrification-denitrification biological treatment.Oxidation ditch ditch internal power density uneven
It is equipped with, the beneficially mass transfer of oxygen, liquid mixing and sludge flocculation.The overall power density of oxidation ditch is relatively low, can save the energy.
In sewage treatment area, film plays the biggest effect, how to improve the filter efficiency of film, and film purifies sewage
It is all to need to consider with urgently to be resolved hurrily that the of long duration mud occurred is attached to the solution on film surface, and that commonly uses uses high pressure
Gas or current impact inside film, and the harm causing film is relatively big, use different cycles to make electricity with the alternating current of size
Magnet produces intermittent magnetic, can more efficiently make mud be difficult to be attached to film surface, and can remove the most attached
In the mud on film surface.
Summary of the invention
It is an object of the invention to provide oxidation ditch sewage purification system and using method thereof, to solve above-mentioned background technology
The problem of middle proposition.
For achieving the above object, the present invention provides following technical scheme: oxidation ditch sewage purification system, including thickness lattice
Grid, oxidation ditch and membrane cisterna；Sewage, through the filtration of thickness grid, enters oxidation ditch, then discharges after membrane cisterna purifies, described
The immobilized microorganism ball of a part can be back to oxidation ditch by membrane cisterna, and another part is expelled in collection device；
Described oxidation ditch includes that container and magnetic field generator, described membrane cisterna include that water inlet pipe, outlet pipe, aeration fill
Put, collection device, return duct and membrane module；
The described container in oxidation ditch is used for containing immobilized microorganism ball；Membrane module in described membrane cisterna connects water outlet
Pipe；The bottom of described membrane cisterna is provided with collection device, is used for collecting immobilized microorganism ball；The bottom of described membrane cisterna connects back to
Flow tube, for being back to a part of immobilized microorganism ball in oxidation ditch；
Described immobilized microorganism bag includes magnetizing mediums and activated sludge, described magnetizing mediums without magnetic, but can
Magnetizing under the influence of a magnetic field, described activated sludge is rich in microorganism；Described activated sludge is wrapped in magnetizing mediums, shape
Glomeration；Described magnetic field generator produces magnetic field, and then makes immobilized microorganism ball be in suspended state in oxidation ditch；
Described membrane module includes membrane body, top cover, base and spring；Described membrane body includes water-supply-pipe, outlet and film；
Being provided with electric magnet and Flow speed measurer in described top cover, described electric magnet is hollow ring structure, middle through water delivery
Pipe, described electric magnet connects wire, and wire connects alternating-current power supply, so that electric magnet produces intermittent magnetic, attracts
Being positioned at the magnetizing mediums of base, described magnetizing mediums can be attracted by electric magnet；Described Flow speed measurer is used for measuring sewage water
Stream flow velocity；Described spring is positioned at film, the surrounding of water-supply-pipe, and described spring connects top cover and base, in described top cover
The attraction of electric magnet indirect be positioned at the magnetizing mediums of base, compression spring during attracting, make film also produce indirectly
Property compression, by the intermittent compression of film with restore to the original state during, make mud be difficult to be attached to film surface, and can
Remove the mud having attached to film surface；
By, in the case of different flow rate of water flow with alternating voltage, detecting the preferable scavenging effect of the alternating current of different cycles,
Draw equation below:
As 0≤v ＜ 0.5m/s, T=900s；
As 0.5≤v ＜ 1.0m/s, T=600s；
As 1.0≤v ＜ 1.5m/s, T=300s；
I=600v；Wherein
T is ac period, and unit is s；
I is alternating current size, and unit is mA；
V is sewage water velocity, and unit is m/s.
Preferably, the preparation of the described immobilized microorganism ball in oxidation ditch sewage purification system and recovery are by inciting somebody to action
Rich in microorganism activated sludge by solvent be dissolved into thick after be sufficiently mixed with magnetizing mediums, then mixture is passed through mould
Be fabricated to bead go forward side by side sector-style do；Bead after air-drying again is placed among magnetic field, under the active force in magnetic field, internal containing magnetic
The bead of medium does not contains the bead of magnetizing mediums and separates with inside, and the internal bead containing magnetizing mediums is immobilized microorganism
Ball；Immobilized microorganism ball is used in described oxidation ditch sewage purification system, and by arranging magnetic field around oxidation ditch
Generator produces magnetic field, makes immobilized microorganism ball be in suspended state in oxidation ditch；Immobilized microorganism ball is for a long time
In using, the activated sludge on surface loses activity gradually, is flowed into the micro-life of immobilization being around not provided with in the membrane cisterna in magnetic field
Thing ball sinks to bottom by the gravity of self and reclaims, and finally passes through to soak by the immobilized microorganism ball reclaimed, rolls,
Centrifugal mode reclaims magnetizing mediums；Again the magnetizing mediums being recovered to and activated sludge are sufficiently mixed and again make immobilized microorganism
Ball.
Preferably, a diameter of 10 ~ 20mm of described immobilized microorganism ball.
Preferably, described magnetizing mediums is metallic nickel.
Preferably, described metallic nickel is the metallic nickel after Passivation Treatment.
Preferably, a diameter of 1 ~ 4mm of described magnetizing mediums.
Described oxidation ditch sewage purification system, its using method is:
The first step, open container, make immobilized microorganism ball be flowed in oxidation ditch；
Second step, open magnetic field generator and aerator, make that oxidation ditch is internal produces magnetic field, and then make immobilized microorganism ball
Suspended state it is in oxidation ditch；
3rd step, the outlet pipe in membrane cisterna is connected the outlet of upper water-supply-pipe one end；
4th step, opening conduits valve, sewage is flowed in oxidation ditch after thickness grid filtration, then flows in membrane cisterna；
5th step, being positioned in membrane cisterna by described membrane module, the flow velocity tachymeter being positioned at top cover is capable of detecting when water flow velocity
Degree；
6th step, the wire connected by electric magnet connect upper alternating current power supply, and are capable of detecting when water flow velocity by flow velocity tachymeter
Degree size, in conjunction with cycle and the size of formula regulation alternating current, makes electric magnet under the effect of alternating current, produces intermittent magnetic
Property, attract magnetizing mediums, compression spring during attracting, make film also produce the compression of indirect, by the intermittent pressure of film
During contracting and reinstatement, make mud be difficult to be attached to film surface, and the dirt having attached to film surface can be removed
Mud；
7th step, sewage are discharged after the membrane cisterna in described oxidation ditch sewage purification system filters；Immobilized microorganism ball
It is not provided with in the membrane cisterna in magnetic field around being flowed into after using a period of time in described oxidation ditch sewage purification system, passes through
The gravity of self sinks to bottom membrane cisterna, and enters in collection device, and part immobilized microorganism ball is back to by return duct
In oxidation ditch.
Compared with prior art, the invention has the beneficial effects as follows: described oxidation ditch sewage purification system and user thereof
Immobilized microorganism ball used in method uses immobilized mode can make Microorganism incubation, and this mode can not only
Enough maintain the activity of microorganism, preferably purify water, and can preferably make mud-water separation；Immobilized microorganism ball
A diameter of 10 ~ 20mm, will not block fenestra, and can reduce fouling membrane, and the diameter of immobilized microorganism ball will not be because of too
Needing bigger magnetic field that immobilized microorganism ball just can be made to suspend greatly, sewage also will not be because of the diameter of immobilized microorganism ball
Being difficult to touch the microorganism inside immobilized microorganism ball too greatly, immobilized microorganism ball also will not be because diameter be the least
It is difficult to prepare and reclaim；Two, immobilized microorganism bag includes magnetizing mediums and activated sludge, and magnetizing mediums can be at the work of externally-applied magnetic field
Make magnetizing mediums magnetize under with, enable immobilized microorganism ball to be in suspended state under the influence of a magnetic field, thus favorably
In promoting the circulation of microorganism and improving microbial activity, can preferably purify water；Immobilization is controlled micro-by magnetic field
The mode of biological ball also will not make immobilized microorganism ball be damaged；Three, immobilized microorganism ball can recycle, a side
Face is due to the bacteria metabolism in immobilized microorganism ball and processes sewage for a long time, causes immobilized microorganism ball
In microorganism slowly old dead, use the mode reclaimed periodically discharge and supplement immobilized microorganism ball, immobilization can be made micro-
Microorganism in biological ball is in high activity state all the time；On the other hand in water, flocculence or floating microorganism can be along with solid
Surely changing microorganism ball to discharge together, be possible to prevent microorganism to block fenestra, the microorganism of discharge is also used as preparing immobilization
The raw material of microorganism ball；Four, described membrane module is by being internally provided with electric magnet at top cover, and chassis interior is provided with magnetic and is situated between
Matter, is provided with spring between top cover and base, according to different sewage water flow velocities, electric magnet is passed to scavenging effect and preferably hand over
Stream electricity cycle and size make membrane module produce intermittent contraction, and then make mud be difficult to be attached to film surface, and can go
Removing the mud having attached to membrane module surface, simple to operate, effect is obvious.
Accompanying drawing explanation
Fig. 1 is the system structure schematic diagram of the present invention；
Fig. 2 is the structural representation of membrane cisterna of the present invention；
Fig. 3 is the structural representation of the immobilized microorganism ball of the present invention；
The structural representation of Fig. 4 position inventive film assembly；
Fig. 5 is schematic diagram under working condition of the present invention；
Fig. 6 is the top view of the present invention.
In figure: 1, thickness grid, 2, oxidation ditch, 3, membrane cisterna, 4, water inlet pipe, 5, outlet pipe, 6, aerator, 7, collect dress
Put, 8, immobilized microorganism ball, 9, magnetizing mediums, 10, activated sludge, 11, return duct, 12, membrane module, 13, membrane body, 14, defeated
Water pipe, 15, outlet, 16, film, 17, top cover, 18, electric magnet, 19, Flow speed measurer, 20, base, 21, magnetizing mediums, 22, bullet
Spring.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Embodiment 1:
Referring to Fig. 1-6, the present invention provides a kind of technical scheme: oxidation ditch sewage purification system, including thickness grid 1, oxidation
Ditch 2 and membrane cisterna 3；Sewage, through the filtration of thickness grid 1, enters oxidation ditch 2, then discharges after membrane cisterna 3 purifies, membrane cisterna 3 energy
Enough immobilized microorganism balls 8 by a part are back to oxidation ditch 2, and another part is expelled in collection device 7；
Oxidation ditch 2 includes that container and magnetic field generator, membrane cisterna 3 include water inlet pipe 4, outlet pipe 5, aerator 6, collect dress
Put 7, return duct 11 and membrane module 12；
Container in oxidation ditch 2 is used for containing immobilized microorganism ball 4；Membrane module 12 in membrane cisterna 3 connects outlet pipe 7；Membrane cisterna 3
Bottom be provided with collection device 7, be used for collecting immobilized microorganism ball 8；The bottom of membrane cisterna 3 connects back to flow tube 11, for by one
Part immobilized microorganism ball 8 is back in oxidation ditch 2；
Immobilized microorganism ball 8 includes magnetizing mediums 9 and activated sludge 10, a diameter of 10mm of immobilized microorganism ball 8；Magnetizing mediums
9 is the metallic nickel after Passivation Treatment；A diameter of 1mm of magnetizing mediums 9, magnetizing mediums 9 without magnetic, but can be in magnetic field
Effect issue magnetisation, activated sludge 10 is rich in microorganism；Activated sludge 10 is wrapped in magnetizing mediums 9, is formed spherical；Magnetic field is sent out
Raw device produces magnetic field, and then makes immobilized microorganism ball 8 be in suspended state in oxidation ditch；
Membrane module 12 includes membrane body 13, top cover 17, base 20 and spring 22；Membrane body 13 includes water-supply-pipe 14, outlet 15
With film 16；Being provided with electric magnet 18 and Flow speed measurer 19 in top cover 17, electric magnet 18 is hollow ring structure, middle through defeated
Water pipe 14, electric magnet 18 connects wire, and wire connects alternating-current power supply, so that electric magnet 18 produces intermittent magnetic, inhales
Drawing the magnetizing mediums 21 being positioned at base 20, magnetizing mediums 21 can be attracted by electric magnet 18；Flow speed measurer 19 is used for measuring sewage water
Stream flow velocity；Spring 22 is positioned at film 16, the surrounding of water-supply-pipe 14, and spring 22 connects top cover 17 and base 20, the electricity in top cover 17
The attraction of Magnet 18 indirect is positioned at the magnetizing mediums 21 of base 20, compression spring 22 during attracting, and makes film 16 also produce
The compression of raw indirect, during the intermittent compression of film 16 and restoring to the original state, makes mud be difficult to be attached to film 16 table
Face, and the mud having attached to film 16 surface can be removed；
By, in the case of different flow rate of water flow with alternating voltage, detecting the preferable scavenging effect of the alternating current of different cycles,
Draw equation below:
As 0≤v ＜ 0.5m/s, T=900s；
As 0.5≤v ＜ 1.0m/s, T=600s；
As 1.0≤v ＜ 1.5m/s, T=300s；
I=600v；Wherein
T is ac period, and unit is s；
I is alternating current size, and unit is mA；
V is sewage water velocity, and unit is m/s.
The preparation of the immobilized microorganism ball 8 in oxidation ditch sewage purification system and recovery are by will be enriched in microorganism
Activated sludge 10 by solvent be dissolved into thick after be sufficiently mixed with magnetizing mediums 9, then mixture is become little by Mold Making
Ball go forward side by side sector-style do；Bead after air-drying again is placed among magnetic field, and under the active force in magnetic field, inside is containing magnetizing mediums 9
Bead does not contains the bead of magnetizing mediums 9 and separates with inside, and the internal bead containing magnetizing mediums 9 is immobilized microorganism ball 8；Will
Immobilized microorganism ball 8 is used in oxidation ditch sewage purification system, and by arranging magnetic field generator generation around oxidation ditch 2
Magnetic field, makes immobilized microorganism ball 8 be in suspended state in oxidation ditch；Immobilized microorganism ball 8 in long-time use, table
The activated sludge 10 in face loses activity gradually, is flowed into the immobilized microorganism ball 7 being around not provided with in the membrane cisterna 3 in magnetic field and leads to
Cross self gravity to sink to bottom and reclaim, finally by the immobilized microorganism ball 8 that reclaims by soaking, roll, centrifugal
Mode reclaim magnetizing mediums 9；Again the magnetizing mediums 9 being recovered to is sufficiently mixed with activated sludge 10 and again makes immobilized microorganism
Ball 8.
Oxidation ditch sewage purification system, its using method is:
The first step, open container, make immobilized microorganism ball 8 be flowed in oxidation ditch 2；
Second step, open magnetic field generator and aerator 6, make that oxidation ditch 2 is internal produces magnetic field, and then make immobilized microorganism
Ball 8 is in suspended state in oxidation ditch 2；
3rd step, the outlet pipe 5 in membrane cisterna 3 is connected the outlet 15 of upper water-supply-pipe 14 one end；
4th step, opening conduits valve, sewage is flowed in oxidation ditch 2 after thickness grid 1 filters, then flows in membrane cisterna 3；
5th step, being positioned in membrane cisterna 3 by membrane module 15, the flow velocity tachymeter 19 being positioned at top cover 17 is capable of detecting when water flow velocity
Degree is 0.1m/s；
6th step, the wire connected by electric magnet 18 connect upper alternating current power supply, and are capable of detecting when water by flow velocity tachymeter 19
Flow Velocity size, the cycle in conjunction with formula regulation alternating current is 900s, and alternating current size I=600v=600*0.1=60mA makes electricity
Magnet 18, under the effect of alternating current, produces intermittent magnetic, attracts magnetizing mediums 21, compression spring during attracting
22, make film 16 also produce the compression of indirect, during the intermittent compression of film 16 and restoring to the original state, make mud be difficult to
It is attached to film 16 surface, and the mud having attached to film 16 surface can be removed；
7th step, sewage are discharged after the membrane cisterna 3 in oxidation ditch sewage purification system filters；Immobilized microorganism ball 8 is at oxygen
Change to be flowed into after ditch sewage purification system uses a period of time and be around not provided with in the membrane cisterna 3 in magnetic field, by the weight of self
Power sinks to bottom membrane cisterna 3, and enters in collection device 7, and part immobilized microorganism ball is back to oxidation by return duct 11
In ditch 2.
Although the size increasing alternating current can strengthen scavenging effect with the cycle reducing alternating current, but hands over for increasing
The size of stream electricity or reduce cycle of alternating current and the scavenging effect that brings increase degree unconspicuous in the case of, then it is assumed that increase
After alternating current size with increase after alternating current size be not optimal.
Embodiment 2:
Referring to Fig. 1-6, the present invention provides a kind of technical scheme: oxidation ditch sewage purification system, including thickness grid 1, oxidation
Ditch 2 and membrane cisterna 3；Sewage, through the filtration of thickness grid 1, enters oxidation ditch 2, then discharges after membrane cisterna 3 purifies, membrane cisterna 3 energy
Enough immobilized microorganism balls 8 by a part are back to oxidation ditch 2, and another part is expelled in collection device 7；
Oxidation ditch 2 includes that container and magnetic field generator, membrane cisterna 3 include water inlet pipe 4, outlet pipe 5, aerator 6, collect dress
Put 7, return duct 11 and membrane module 12；
Container in oxidation ditch 2 is used for containing immobilized microorganism ball 4；Membrane module 12 in membrane cisterna 3 connects outlet pipe 7；Membrane cisterna 3
Bottom be provided with collection device 7, be used for collecting immobilized microorganism ball 8；The bottom of membrane cisterna 3 connects back to flow tube 11, for by one
Part immobilized microorganism ball 8 is back in oxidation ditch 2；
Immobilized microorganism ball 8 includes magnetizing mediums 9 and activated sludge 10, a diameter of 20mm of immobilized microorganism ball 8；Magnetizing mediums
9 is the metallic nickel after Passivation Treatment；A diameter of 4mm of magnetizing mediums 9, magnetizing mediums 9 without magnetic, but can be in magnetic field
Effect issue magnetisation, activated sludge 10 is rich in microorganism；Activated sludge 10 is wrapped in magnetizing mediums 9, is formed spherical；Magnetic field is sent out
Raw device produces magnetic field, and then makes immobilized microorganism ball 8 be in suspended state in oxidation ditch；
Membrane module 12 includes membrane body 13, top cover 17, base 20 and spring 22；Membrane body 13 includes water-supply-pipe 14, outlet 15
With film 16；Being provided with electric magnet 18 and Flow speed measurer 19 in top cover 17, electric magnet 18 is hollow ring structure, middle through defeated
Water pipe 14, electric magnet 18 connects wire, and wire connects alternating-current power supply, so that electric magnet 18 produces intermittent magnetic, inhales
Drawing the magnetizing mediums 21 being positioned at base 20, magnetizing mediums 21 can be attracted by electric magnet 18；Flow speed measurer 19 is used for measuring sewage water
Stream flow velocity；Spring 22 is positioned at film 16, the surrounding of water-supply-pipe 14, and spring 22 connects top cover 17 and base 20, the electricity in top cover 17
The attraction of Magnet 18 indirect is positioned at the magnetizing mediums 21 of base 20, compression spring 22 during attracting, and makes film 16 also produce
The compression of raw indirect, during the intermittent compression of film 16 and restoring to the original state, makes mud be difficult to be attached to film 16 table
Face, and the mud having attached to film 16 surface can be removed；
By, in the case of different flow rate of water flow with alternating voltage, detecting the preferable scavenging effect of the alternating current of different cycles,
Draw equation below:
As 0≤v ＜ 0.5m/s, T=900s；
As 0.5≤v ＜ 1.0m/s, T=600s；
As 1.0≤v ＜ 1.5m/s, T=300s；
I=600v；Wherein
T is ac period, and unit is s；
I is alternating current size, and unit is mA；
V is sewage water velocity, and unit is m/s.
The preparation of the immobilized microorganism ball 8 in oxidation ditch sewage purification system and recovery are by will be enriched in microorganism
Activated sludge 10 by solvent be dissolved into thick after be sufficiently mixed with magnetizing mediums 9, then mixture is become little by Mold Making
Ball go forward side by side sector-style do；Bead after air-drying again is placed among magnetic field, and under the active force in magnetic field, inside is containing magnetizing mediums 9
Bead does not contains the bead of magnetizing mediums 9 and separates with inside, and the internal bead containing magnetizing mediums 9 is immobilized microorganism ball 8；Will
Immobilized microorganism ball 8 is used in oxidation ditch sewage purification system, and by arranging magnetic field generator generation around oxidation ditch 2
Magnetic field, makes immobilized microorganism ball 8 be in suspended state in oxidation ditch；Immobilized microorganism ball 8 in long-time use, table
The activated sludge 10 in face loses activity gradually, is flowed into the immobilized microorganism ball 7 being around not provided with in the membrane cisterna 3 in magnetic field and leads to
Cross self gravity to sink to bottom and reclaim, finally by the immobilized microorganism ball 8 that reclaims by soaking, roll, centrifugal
Mode reclaim magnetizing mediums 9；Again the magnetizing mediums 9 being recovered to is sufficiently mixed with activated sludge 10 and again makes immobilized microorganism
Ball 8.
Oxidation ditch sewage purification system, its using method is:
The first step, open container, make immobilized microorganism ball 8 be flowed in oxidation ditch 2；
Second step, open magnetic field generator and aerator 6, make that oxidation ditch 2 is internal produces magnetic field, and then make immobilized microorganism
Ball 8 is in suspended state in oxidation ditch 2；
3rd step, the outlet pipe 5 in membrane cisterna 3 is connected the outlet 15 of upper water-supply-pipe 14 one end；
4th step, opening conduits valve, sewage is flowed in oxidation ditch 2 after thickness grid 1 filters, then flows in membrane cisterna 3；
5th step, being positioned in membrane cisterna 3 by membrane module 15, the flow velocity tachymeter 19 being positioned at top cover 17 is capable of detecting when water flow velocity
Degree is 0.7m/s；
6th step, the wire connected by electric magnet 18 connect upper alternating current power supply, and are capable of detecting when water by flow velocity tachymeter 19
Flow Velocity size, the cycle in conjunction with formula regulation alternating current is 600s, and alternating current size I=600v=600*0.7=420mA makes electricity
Magnet 18, under the effect of alternating current, produces intermittent magnetic, attracts magnetizing mediums 21, compression spring during attracting
22, make film 16 also produce the compression of indirect, during the intermittent compression of film 16 and restoring to the original state, make mud be difficult to
It is attached to film 16 surface, and the mud having attached to film 16 surface can be removed；
7th step, sewage are discharged after the membrane cisterna 3 in oxidation ditch sewage purification system filters；Immobilized microorganism ball 8 is at oxygen
Change to be flowed into after ditch sewage purification system uses a period of time and be around not provided with in the membrane cisterna 3 in magnetic field, by the weight of self
Power sinks to bottom membrane cisterna 3, and enters in collection device 7, and part immobilized microorganism ball is back to oxidation by return duct 11
In ditch 2.
Although the size increasing alternating current can strengthen scavenging effect with the cycle reducing alternating current, but hands over for increasing
The size of stream electricity or reduce cycle of alternating current and the scavenging effect that brings increase degree unconspicuous in the case of, then it is assumed that increase
After alternating current size with increase after alternating current size be not optimal.
Embodiment 3:
Referring to Fig. 1-6, the present invention provides a kind of technical scheme: oxidation ditch sewage purification system, including thickness grid 1, oxidation
Ditch 2 and membrane cisterna 3；Sewage, through the filtration of thickness grid 1, enters oxidation ditch 2, then discharges after membrane cisterna 3 purifies, membrane cisterna 3 energy
Enough immobilized microorganism balls 8 by a part are back to oxidation ditch 2, and another part is expelled in collection device 7；
Oxidation ditch 2 includes that container and magnetic field generator, membrane cisterna 3 include water inlet pipe 4, outlet pipe 5, aerator 6, collect dress
Put 7, return duct 11 and membrane module 12；
Container in oxidation ditch 2 is used for containing immobilized microorganism ball 4；Membrane module 12 in membrane cisterna 3 connects outlet pipe 7；Membrane cisterna 3
Bottom be provided with collection device 7, be used for collecting immobilized microorganism ball 8；The bottom of membrane cisterna 3 connects back to flow tube 11, for by one
Part immobilized microorganism ball 8 is back in oxidation ditch 2；
Immobilized microorganism ball 8 includes magnetizing mediums 9 and activated sludge 10, a diameter of 15mm of immobilized microorganism ball 8；Magnetizing mediums
9 is the metallic nickel after Passivation Treatment；A diameter of 3mm of magnetizing mediums 9, magnetizing mediums 9 without magnetic, but can be in magnetic field
Effect issue magnetisation, activated sludge 10 is rich in microorganism；Activated sludge 10 is wrapped in magnetizing mediums 9, is formed spherical；Magnetic field is sent out
Raw device produces magnetic field, and then makes immobilized microorganism ball 8 be in suspended state in oxidation ditch；
Membrane module 12 includes membrane body 13, top cover 17, base 20 and spring 22；Membrane body 13 includes water-supply-pipe 14, outlet 15
With film 16；Being provided with electric magnet 18 and Flow speed measurer 19 in top cover 17, electric magnet 18 is hollow ring structure, middle through defeated
Water pipe 14, electric magnet 18 connects wire, and wire connects alternating-current power supply, so that electric magnet 18 produces intermittent magnetic, inhales
Drawing the magnetizing mediums 21 being positioned at base 20, magnetizing mediums 21 can be attracted by electric magnet 18；Flow speed measurer 19 is used for measuring sewage water
Stream flow velocity；Spring 22 is positioned at film 16, the surrounding of water-supply-pipe 14, and spring 22 connects top cover 17 and base 20, the electricity in top cover 17
The attraction of Magnet 18 indirect is positioned at the magnetizing mediums 21 of base 20, compression spring 22 during attracting, and makes film 16 also produce
The compression of raw indirect, during the intermittent compression of film 16 and restoring to the original state, makes mud be difficult to be attached to film 16 table
Face, and the mud having attached to film 16 surface can be removed；
By, in the case of different flow rate of water flow with alternating voltage, detecting the preferable scavenging effect of the alternating current of different cycles,
Draw equation below:
As 0≤v ＜ 0.5m/s, T=900s；
As 0.5≤v ＜ 1.0m/s, T=600s；
As 1.0≤v ＜ 1.5m/s, T=300s；
I=600v；Wherein
T is ac period, and unit is s；
I is alternating current size, and unit is mA；
V is sewage water velocity, and unit is m/s.
The preparation of the immobilized microorganism ball 8 in oxidation ditch sewage purification system and recovery are by will be enriched in microorganism
Activated sludge 10 by solvent be dissolved into thick after be sufficiently mixed with magnetizing mediums 9, then mixture is become little by Mold Making
Ball go forward side by side sector-style do；Bead after air-drying again is placed among magnetic field, and under the active force in magnetic field, inside is containing magnetizing mediums 9
Bead does not contains the bead of magnetizing mediums 9 and separates with inside, and the internal bead containing magnetizing mediums 9 is immobilized microorganism ball 8；Will
Immobilized microorganism ball 8 is used in oxidation ditch sewage purification system, and by arranging magnetic field generator generation around oxidation ditch 2
Magnetic field, makes immobilized microorganism ball 8 be in suspended state in oxidation ditch；Immobilized microorganism ball 8 in long-time use, table
The activated sludge 10 in face loses activity gradually, is flowed into the immobilized microorganism ball 7 being around not provided with in the membrane cisterna 3 in magnetic field and leads to
Cross self gravity to sink to bottom and reclaim, finally by the immobilized microorganism ball 8 that reclaims by soaking, roll, centrifugal
Mode reclaim magnetizing mediums 9；Again the magnetizing mediums 9 being recovered to is sufficiently mixed with activated sludge 10 and again makes immobilized microorganism
Ball 8.
Oxidation ditch sewage purification system, its using method is:
The first step, open container, make immobilized microorganism ball 8 be flowed in oxidation ditch 2；
Second step, open magnetic field generator and aerator 6, make that oxidation ditch 2 is internal produces magnetic field, and then make immobilized microorganism
Ball 8 is in suspended state in oxidation ditch 2；
3rd step, the outlet pipe 5 in membrane cisterna 3 is connected the outlet 15 of upper water-supply-pipe 14 one end；
4th step, opening conduits valve, sewage is flowed in oxidation ditch 2 after thickness grid 1 filters, then flows in membrane cisterna 3；
5th step, being positioned in membrane cisterna 3 by membrane module 15, the flow velocity tachymeter 19 being positioned at top cover 17 is capable of detecting when water flow velocity
Degree is 1.2m/s；
6th step, the wire connected by electric magnet 18 connect upper alternating current power supply, and are capable of detecting when water by flow velocity tachymeter 19
Flow Velocity size, the cycle in conjunction with formula regulation alternating current is 300s, and alternating current size I=600v=600*1.2=720mA makes electricity
Magnet 18, under the effect of alternating current, produces intermittent magnetic, attracts magnetizing mediums 21, compression spring during attracting
22, make film 16 also produce the compression of indirect, during the intermittent compression of film 16 and restoring to the original state, make mud be difficult to
It is attached to film 16 surface, and the mud having attached to film 16 surface can be removed；
7th step, sewage are discharged after the membrane cisterna 3 in oxidation ditch sewage purification system filters；Immobilized microorganism ball 8 is at oxygen
Change to be flowed into after ditch sewage purification system uses a period of time and be around not provided with in the membrane cisterna 3 in magnetic field, by the weight of self
Power sinks to bottom membrane cisterna 3, and enters in collection device 7, and part immobilized microorganism ball is back to oxidation by return duct 11
In ditch 2.
Although the size increasing alternating current can strengthen scavenging effect with the cycle reducing alternating current, but hands over for increasing
The size of stream electricity or reduce cycle of alternating current and the scavenging effect that brings increase degree unconspicuous in the case of, then it is assumed that increase
After alternating current size with increase after alternating current size be not optimal.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
In addition equivalent or change are conceived in improvement, all should contain within the scope of the present invention.
Claims (7)
1. oxidation ditch sewage purification system, it is characterised in that: include thickness grid (1), oxidation ditch (2) and membrane cisterna (3)；Sewage warp
Cross the filtration of thickness grid (1), enter oxidation ditch (2), then discharge after membrane cisterna (3) purifies, described membrane cisterna (3) can be by
The immobilized microorganism ball (8) of a part is back to oxidation ditch (2), and another part is expelled in collection device (7)；
Described oxidation ditch (2) includes that container and magnetic field generator, described membrane cisterna (3) include water inlet pipe (4), outlet pipe
(5), aerator (6), collection device (7), return duct (11) and membrane module (12)；
The described container in oxidation ditch (2) is used for containing immobilized microorganism ball (4)；The described membrane module in membrane cisterna (3)
(12) outlet pipe (7) is connected；The bottom of described membrane cisterna (3) is provided with collection device (7), is used for collecting immobilized microorganism ball
(8)；The bottom of described membrane cisterna (3) connects back to flow tube (11), for a part of immobilized microorganism ball (8) is back to oxidation
In ditch (2)；
Described immobilized microorganism ball (8) includes magnetizing mediums (9) and activated sludge (10), described magnetizing mediums (9) without
Magnetic, but can magnetize under the influence of a magnetic field, and described activated sludge (10) is rich in microorganism；Described activity is dirty
Mud (10) is wrapped in magnetizing mediums (9), is formed spherical；Described magnetic field generator produces magnetic field, and then makes immobilized microorganism ball
(8) in oxidation ditch, suspended state it is in；
Described membrane module (12) includes membrane body (13), top cover (17), base (20) and spring (22)；Described membrane body
(13) water-supply-pipe (14), outlet (15) and film (16) are included；It is provided with electric magnet (18) and flow velocity in described top cover (17)
Measuring instrument (19), described electric magnet (18) is hollow ring structure, middle through water-supply-pipe (14), described electric magnet (18)
Connecting wire, wire connects alternating-current power supply, so that electric magnet (18) produces intermittent magnetic, attracts to be positioned at base (20)
Magnetizing mediums (21), described magnetizing mediums (21) can be attracted by electric magnet (18)；Described Flow speed measurer (19) is used for surveying
Amount sewage flow rate of water flow；Described spring (22) is positioned at film (16), the surrounding of water-supply-pipe (14), and described spring (22) connects
Top cover (17) and base (20), the attraction of described electric magnet (18) indirect in top cover (17) is positioned at the magnetic of base (20)
Medium (21), compression spring (22) during attracting, make film (16) also produce the compression of indirect, by film (16) intermittently
Property compression with restore to the original state during, make mud be difficult to be attached to film (16) surface, and can remove and have attached to
The mud on film (16) surface；
By, in the case of different flow rate of water flow with alternating voltage, detecting the preferable scavenging effect of the alternating current of different cycles,
Draw equation below:
As 0≤v ＜ 0.5m/s, T=900s；
As 0.5≤v ＜ 1.0m/s, T=600s；
As 1.0≤v ＜ 1.5m/s, T=300s；
I=600v；Wherein
T is ac period, and unit is s；
I is alternating current size, and unit is mA；
V is sewage water velocity, and unit is m/s.
Oxidation ditch sewage purification system the most according to claim 1, it is characterised in that: described oxidation ditch sewage purification system
The preparation of the immobilized microorganism ball (8) in system and recovery are molten by solvent by will be enriched in the activated sludge of microorganism (10)
Solution become thick after be sufficiently mixed with magnetizing mediums (9), then become bead sector-style of going forward side by side to do by Mold Making in mixture；Again by wind
Bead after Gan is placed among magnetic field, and under the active force in magnetic field, the internal bead containing magnetizing mediums (9) does not contains magnetic with inside
The bead of medium (9) separates, and the internal bead containing magnetizing mediums (9) is immobilized microorganism ball (8)；By immobilized microorganism
Ball (8) is used in described oxidation ditch sewage purification system, and by arranging magnetic field generator generation magnetic around oxidation ditch (2)
, make immobilized microorganism ball (8) be in suspended state in oxidation ditch；Immobilized microorganism ball (8) in long-time use,
The activated sludge (10) on surface loses activity gradually, is flowed into the micro-life of immobilization being around not provided with in the membrane cisterna (3) in magnetic field
Thing ball (7) sinks to bottom by the gravity of self and reclaims, finally by the immobilized microorganism ball (8) reclaimed by soaking
Bubble, rolls, and centrifugal mode reclaims magnetizing mediums (9)；Again the magnetizing mediums (9) being recovered to and activated sludge (10) are sufficiently mixed weight
Newly formed immobilized microorganism ball (8).
Oxidation ditch sewage purification system the most according to claim 2, it is characterised in that: described immobilized microorganism ball
(8) a diameter of 10 ~ 20mm.
Oxidation ditch sewage purification system the most according to claim 1, it is characterised in that: described magnetizing mediums (9) is metal
Nickel.
Oxidation ditch sewage purification system the most according to claim 4, it is characterised in that: described metallic nickel is through transpassivation
Metallic nickel after process.
Oxidation ditch sewage purification system the most according to claim 4, it is characterised in that: the diameter of described magnetizing mediums (9)
It is 1 ~ 4mm.
Oxidation ditch sewage purification system the most according to claim 1, its using method is:
The first step, open container, make immobilized microorganism ball (8) be flowed in oxidation ditch (2)；
Second step, open magnetic field generator and aerator (6), make that oxidation ditch (2) is internal produces magnetic field, and then make immobilization micro-
Biological ball (8) is in suspended state in oxidation ditch (2)；
3rd step, by the outlet (15) of water-supply-pipe (14) one end in outlet pipe (5) connection in membrane cisterna (3)；
4th step, opening conduits valve, sewage is flowed in oxidation ditch (2) after thickness grid (1) filters, then flows into membrane cisterna
(3) in；
5th step, described membrane module (15) is positioned in membrane cisterna (3), is positioned at flow velocity tachymeter (19) energy of top cover (17)
Enough detect water velocity；
6th step, the wire connected by electric magnet (18) connect upper alternating current power supply, and can be detected by flow velocity tachymeter (19)
Water discharge flow speed degree size, in conjunction with cycle and the size of formula regulation alternating current, makes electric magnet (18) under the effect of alternating current, produces
Raw intermittent magnetic, attracts magnetizing mediums (21), and compression spring (22) during attracting makes film (16) also produce indirect
Compression, by film (16) intermittent compression with restore to the original state during, make mud be difficult to be attached to film (16) surface, and
And the mud having attached to film (16) surface can be removed；
7th step, sewage are discharged after the membrane cisterna (3) in described oxidation ditch sewage purification system filters；Immobilized microorganism
Ball (8) is not provided with the membrane cisterna in magnetic field around being flowed into after using a period of time in described oxidation ditch sewage purification system
(3), in, sink to membrane cisterna (3) bottom by the gravity of self, and enter in collection device (7), part immobilized microorganism ball
It is back in oxidation ditch (2) by return duct (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610763779.1A CN106186296A (en) | 2016-08-30 | 2016-08-30 | Oxidation ditch sewage purification system and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610763779.1A CN106186296A (en) | 2016-08-30 | 2016-08-30 | Oxidation ditch sewage purification system and using method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN106186296A true CN106186296A (en) | 2016-12-07 |
Family
ID=58089624
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1204625A (en) * | 1997-07-02 | 1999-01-13 | 科学技术振兴事业团 | Microorganisms-immobilized magnetic carriers, process for producing carriers and method of treating waste water |
| CN102010062A (en) * | 2010-12-28 | 2011-04-13 | 北京碧水源科技股份有限公司 | MBR wastewater treating system with double circular grooves |
| CN102228796A (en) * | 2011-05-13 | 2011-11-02 | 叶茂盛 | Pollution resistant membrane module and use method thereof |
| KR20140027793A (en) * | 2012-08-27 | 2014-03-07 | 한국과학기술연구원 | Apparatus and method for cultivating micro-algae with anaerobic digestion vessel and membrane bio-reactor |
| CN104787991A (en) * | 2015-05-11 | 2015-07-22 | 北京碧水源科技股份有限公司 | Composite CAS (conventional activated sludge process)-MBR (membrane bioreactor) sewage treatment system |
-
2016
- 2016-08-30 CN CN201610763779.1A patent/CN106186296A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1204625A (en) * | 1997-07-02 | 1999-01-13 | 科学技术振兴事业团 | Microorganisms-immobilized magnetic carriers, process for producing carriers and method of treating waste water |
| CN102010062A (en) * | 2010-12-28 | 2011-04-13 | 北京碧水源科技股份有限公司 | MBR wastewater treating system with double circular grooves |
| CN102228796A (en) * | 2011-05-13 | 2011-11-02 | 叶茂盛 | Pollution resistant membrane module and use method thereof |
| KR20140027793A (en) * | 2012-08-27 | 2014-03-07 | 한국과학기술연구원 | Apparatus and method for cultivating micro-algae with anaerobic digestion vessel and membrane bio-reactor |
| CN104787991A (en) * | 2015-05-11 | 2015-07-22 | 北京碧水源科技股份有限公司 | Composite CAS (conventional activated sludge process)-MBR (membrane bioreactor) sewage treatment system |
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