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CN106186564A - Membrane bioreactor sewage purification system and operational approach thereof - Google Patents

Membrane bioreactor sewage purification system and operational approach thereof Download PDF

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Publication number
CN106186564A
CN106186564A CN201610750991.4A CN201610750991A CN106186564A CN 106186564 A CN106186564 A CN 106186564A CN 201610750991 A CN201610750991 A CN 201610750991A CN 106186564 A CN106186564 A CN 106186564A
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CN
China
Prior art keywords
immobilized microorganism
purification system
sewage purification
membrane bioreactor
microorganism ball
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.)
Withdrawn
Application number
CN201610750991.4A
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Chinese (zh)
Inventor
丁思思
黄骏
梁晓阳
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Guangde Qingyuan Water Treatment Equipment Co Ltd
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Guangde Qingyuan Water Treatment Equipment Co Ltd
Priority date (The priority date 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 date listed.)
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Priority to CN201610750991.4A priority Critical patent/CN106186564A/en
Publication of CN106186564A publication Critical patent/CN106186564A/en
Withdrawn legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/50Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes

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  • Life Sciences & Earth Sciences (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)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention discloses membrane bioreactor sewage purification system and operational approach thereof, including anoxic pond, Aerobic Pond, MBR pond and sterilization pool;It is first turned on container, makes in immobilized microorganism ball inflow system, then the immobilized microorganism ball using time length is collected, the most again makes, 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 membrane bioreactor sewage purification system and operational approach thereof can maintain the activity of microorganism, reduces fouling membrane;The effect in magnetic field makes immobilized microorganism ball be in suspended state, 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

Membrane bioreactor sewage purification system and operational approach thereof
Technical field
The present invention relates to sewage treatment area, specially membrane bioreactor sewage purification system and operational approach 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.
Being mainly used in denitrogenation in anoxic pond, nitrate nitrogen is back to anoxic pond by interior circulation by MBR pond;Aerobic Pond is used for Except BOD, ammonia and nitrogen organic and nitrification and absorption phosphorus in water, Organic substance in water is decomposed into inorganic matter;MBR pond is used for purifying Water, the water after MBR pond is filtered can be expelled directly out through sterilization again.
MBR is membrane bioreactor, carries the key player ensureing high-quality water quality output, is cut by the impurity in sewage Staying through degrading to greatest extent, be achieved dirty water purification, sewage is in the reactor through having carried out a biological disposal upon to organic dirt After the decomposition of dye material and conversion, utilize the high efficiency separation of micro-filtration membrane or ultrafilter membrane to complete the solid-liquid separation of sewage, thus reach The final purification effect of sewage.The membrane module being arranged in reactor can replace the second pond in traditional handicraft and conventional mistake completely Filter, absorbing unit, make hydraulic detention time and sludge age be kept completely separate, and obtains stable, the effluent quality of high-quality.
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 membrane bioreactor sewage purification system and operational approach thereof, to solve the above-mentioned back of the body The problem proposed in scape technology.
For achieving the above object, the present invention provides following technical scheme: membrane bioreactor sewage purification system, including lacking Oxygen pond, Aerobic Pond, MBR pond and sterilization pool;Sewage through filtering sequentially enters anoxic pond, Aerobic Pond and MBR pond, eventually passes Discharging after sterilization pool sterilization, the immobilized microorganism ball of a part can be back to anoxic pond, another part by described MBR pond It is expelled in collection device;
Described anoxic pond includes water inlet pipe, outlet pipe, container, aerator and magnetic field generator;In described Aerobic Pond Including water inlet pipe, outlet pipe, aerator and magnetic field generator;Described MBR pond includes that water inlet pipe, outlet pipe, aeration fill Put, return duct, collection device and membrane module;
Membrane module in described MBR pond connects outlet pipe;Described container is used for containing immobilized microorganism ball;Described The bottom in MBR pond is provided with collection device, is used for collecting immobilized microorganism ball;The bottom in described MBR pond connects back to flow tube, uses In the immobilized microorganism of a part is back to anoxic pond;
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 at described membrane bioreactor sewage Cleaning system is in suspended state;
Described membrane module includes that membrane body, top cover, base and spring, described described membrane body include water-supply-pipe, water outlet Mouth and film, be provided with electric magnet and Flow speed measurer in described top cover, described electric magnet is hollow ring structure, and centre is worn Crossing water-supply-pipe, described electric magnet connects wire, and wire connects alternating-current power supply, so that electric magnet produces intermittent magnetic Property, attracting to be 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 flow rate of water flow;
Described spring is positioned at film, the surrounding of water-supply-pipe, and described spring connects top cover and base, the described electricity in top cover The attraction of Magnet indirect is positioned at the magnetizing mediums of base, compression spring during attracting, and makes film also produce indirect Compression, during the intermittent compression of film and restoring to the original state, makes mud be difficult to be attached to film surface, and can remove Have attached to the mud on 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, 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 membrane bioreactor sewage purification system with recovery is By will be enriched in the activated sludge of microorganism by solvent be dissolved into thick after be sufficiently mixed with magnetizing mediums, then mixture is led to Cross Mold Making become 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 Bead containing magnetizing mediums does not contains the bead of magnetizing mediums and separates with inside, and it is micro-that the internal bead containing magnetizing mediums is immobilization Biological ball;Immobilized microorganism ball is used in described membrane bioreactor sewage purification system, and biological at described film By arranging magnetic field generator generation magnetic field around reactor sewage purification system, make immobilized microorganism ball raw at described film Thing reactor sewage purification system is in suspended state;Immobilized microorganism ball is in long-time use, and the activity on surface is dirty Mud loses activity gradually, by closing magnetic field, makes immobilized microorganism ball sink to bottom by the gravity of self and reclaims, Finally passing through to soak by the immobilized microorganism ball reclaimed, roll, centrifugal mode reclaims magnetizing mediums;Again the magnetic being recovered to is situated between Matter and activated sludge are sufficiently mixed makes immobilized microorganism ball again.
Preferably, a diameter of 7 ~ 13mm 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 ~ 2mm of described magnetizing mediums.
Described membrane bioreactor sewage purification system, its operational approach is:
The first step, open container, make the immobilized microorganism ball of inside be flowed into described membrane bioreactor sewage purification system In system;
Second step, open magnetic field generator and aerator, make that described membrane bioreactor sewage purification system is internal to be produced Magnetic field, and then make immobilized microorganism ball be in suspended state in described membrane bioreactor sewage purification system;
3rd step, the outlet pipe in MBR pond is connected the outlet of upper water-supply-pipe one end;
4th step, opening conduits valve, make sewage be flowed in described membrane bioreactor sewage purification system;
5th step, being positioned in MBR pond 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 described membrane bioreactor sewage purification system processes;Immobilized microorganism ball exists After described membrane bioreactor sewage purification system uses a period of time, it is flowed in the MBR pond not having magnetic field, a part Immobilized microorganism ball be flowed in collection device, another part immobilized microorganism ball be back in anoxic pond circulation makes With.
Compared with prior art, the invention has the beneficial effects as follows: described membrane bioreactor sewage purification system and The immobilized microorganism ball that operational approach is used uses immobilized mode can make Microorganism incubation, and this mode is not It is only capable of the activity maintaining microorganism, preferably purifies water, and can preferably make mud-water separation;Immobilized microorganism A diameter of 7 ~ 13mm of ball, will not block fenestra, and can reduce fouling membrane, and the diameter of immobilized microorganism ball will not be because of Too big and need bigger magnetic field that immobilized microorganism ball just can be made to suspend, sewage also will not straight because of immobilized microorganism ball Footpath is too big and is difficult to touch the microorganism inside immobilized microorganism ball, and immobilized microorganism ball also will not be the least because of diameter And be difficult to prepare and reclaim;Two, immobilized microorganism bag includes magnetizing mediums and activated sludge, and magnetizing mediums can be at externally-applied magnetic field Make magnetizing mediums magnetize under effect, enable immobilized microorganism ball to be in suspended state under the influence of a magnetic field, thus have It is beneficial to promote the circulation of microorganism and improve microbial activity, can preferably purify water;Immobilization is controlled by magnetic field The mode of microorganism ball also will not make immobilized microorganism ball be damaged;Three, immobilized microorganism ball can recycle, and one Aspect is due to the bacteria metabolism in immobilized microorganism ball and processes sewage for a long time, causes immobilized microorganism Microorganism in ball is slowly old dead, uses the mode reclaimed periodically discharge and supplement immobilized microorganism ball, can make immobilization Microorganism in microorganism ball is in high activity state all the time;On the other hand in water, flocculence or floating microorganism can be along with Immobilized microorganism ball is discharged together, is possible to prevent microorganism to block fenestra, and it is fixing that the microorganism of discharge is also used as preparation Change 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 Medium, is provided with spring between top cover and base, according to different sewage water flow velocities, electric magnet is passed to scavenging effect preferably Ac period and size make membrane module produce intermittent contraction, and then make mud be difficult to be attached to film surface, and can 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 anoxic pond of the present invention;
Fig. 3 is the structural representation of Aerobic Pond of the present invention;
Fig. 4 is the structural representation in MBR pond of the present invention;
Fig. 5 is the structural representation of the immobilized microorganism ball of the present invention;
The structural representation of Fig. 6 position inventive film assembly;
Fig. 7 is schematic diagram under working condition of the present invention;
Fig. 8 is the top view of the present invention.
In figure: 1, anoxic pond, 2, Aerobic Pond, 3, MBR pond, 4, sterilization pool, 5, water inlet pipe, 6, outlet pipe, 7, container, 8, expose Device of air, 9, magnetic field generator, 10, return duct, 11, collection device, 12, membrane module, 13, immobilized microorganism ball, 14, magnetic is situated between Matter, 15, activated sludge, 16, membrane body, 17, water-supply-pipe, 18, outlet, 19, film, 20, top cover, 21, electric magnet, 22, flow velocity Measuring instrument, 23, base, 24, magnetizing mediums, 25, 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. 1-8, the present invention provides a kind of technical scheme: membrane bioreactor sewage purification system, including anoxic pond 1, Aerobic Pond 2, MBR pond 3 and sterilization pool 4;Sewage through filtering sequentially enters anoxic pond 1, Aerobic Pond 2 and MBR pond 3, after warp Discharging after crossing sterilization pool 4 sterilization, the immobilized microorganism ball 13 of a part can be back to anoxic pond 1 by MBR pond 3, another portion Divide and be expelled in collection device 11;
Anoxic pond 1 includes water inlet pipe 5, outlet pipe 6, container 7, aerator 8 and magnetic field generator 9;Aerobic Pond 2 include into Water pipe 5, outlet pipe 6, aerator 8 and magnetic field generator 9;MBR pond 3 includes water inlet pipe 5, outlet pipe 6, aerator 8, returns Flow tube 10, collection device 11 and membrane module 12;
Membrane module 12 in MBR pond 3 connects outlet pipe 6;Container 7 is used for containing immobilized microorganism ball 13;The bottom in MBR pond 3 It is provided with collection device 11, is used for collecting immobilized microorganism ball 13;The bottom in MBR pond 3 connects back to flow tube 10, for by a part Immobilized microorganism 13 be back to anoxic pond 1;
Immobilized microorganism ball 13 includes magnetizing mediums 14 and activated sludge 15, a diameter of 7mm of immobilized microorganism ball 13;Magnetic is situated between Matter 14 is to be the metallic nickel after Passivation Treatment, a diameter of 1mm of magnetizing mediums 14, and magnetizing mediums 14 is without magnetic, but energy Enough magnetizing under the influence of a magnetic field, activated sludge 15 is rich in microorganism;Activated sludge 15 is wrapped in magnetizing mediums 14, forms ball Shape;Magnetic field generator 9 produces magnetic field, and then makes immobilized microorganism ball 13 be in membrane bioreactor sewage purification system Suspended state;
Membrane module 12 includes membrane body 16, top cover 20, base 23 and spring 25, and membrane body 16 includes water-supply-pipe 17, outlet 18 With film 19, being provided with electric magnet 21 and Flow speed measurer 22 in top cover 20, electric magnet 21 is hollow ring structure, middle through defeated Water pipe 17, electric magnet 21 connects wire, and wire connects alternating-current power supply, so that electric magnet 21 produces intermittent magnetic, inhales Drawing the magnetizing mediums 24 being positioned at base 23, magnetizing mediums 24 can be attracted by electric magnet 21;Flow speed measurer 22 is used for measuring sewage water Stream flow velocity;
Spring 25 is positioned at film 19, the surrounding of water-supply-pipe 17, and spring 25 connects top cover 20 and base 23, the electric magnet in top cover 20 The attraction of 21 indirect is positioned at the magnetizing mediums 24 of base 23, and compression spring 25 during attracting, between making film 19 also produce The compression of connecing property, during the intermittent compression of film 19 and restoring to the original state, makes mud be difficult to be attached to film 19 surface, and And the mud having attached to film 19 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, 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 13 in membrane bioreactor sewage purification system and recovery are by will be enriched in The activated sludge 15 of microorganism by solvent be dissolved into thick after be sufficiently mixed with magnetizing mediums 14, 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 14 does not contains the bead of magnetizing mediums 14 and separates with inside, and it is micro-that the internal bead containing magnetizing mediums 14 is immobilization Biological ball 13;Immobilized microorganism ball 13 is used in membrane bioreactor sewage purification system, and dirty at membrane bioreactor Produce magnetic field by arranging magnetic field generator 9 around water purification system, make immobilized microorganism ball 13 dirty at membrane bioreactor Water purification system is in suspended state;Immobilized microorganism ball 13 is in long-time use, and the activated sludge 15 on surface is gradually Lose activity, by closing magnetic field, make immobilized microorganism ball 13 sink to bottom by the gravity of self and reclaim, finally Passing through to soak by the immobilized microorganism ball 13 reclaimed, roll, centrifugal mode reclaims magnetizing mediums 14;Again the magnetic being recovered to is situated between Matter 14 and activated sludge 15 are sufficiently mixed makes immobilized microorganism ball 13 again.
Membrane bioreactor sewage purification system, its operational approach is:
The first step, open container 7, make the immobilized microorganism ball 13 of inside be flowed into membrane bioreactor sewage purification system In;
Second step, open magnetic field generator 9 and aerator 8, make that membrane bioreactor sewage purification system is internal produces magnetic field, And then make immobilized microorganism ball 13 be in suspended state in membrane bioreactor sewage purification system;
3rd step, the outlet pipe 6 in MBR pond 3 is connected the outlet 18 of upper water-supply-pipe 17 one end;
4th step, opening conduits valve, make sewage be flowed in membrane bioreactor sewage purification system;
5th step, being positioned in MBR pond 3 by membrane module 12, the flow velocity tachymeter 22 being positioned at top cover 20 is capable of detecting when current Speed is 0.2m/s;
6th step, the wire connected by electric magnet 21 connect upper alternating current power supply, and are capable of detecting when water by flow velocity tachymeter 22 Flow Velocity size, the cycle in conjunction with formula regulation alternating current is 900s, and alternating current size I=600v=600*0.2=120mA makes electricity Magnet 21, under the effect of alternating current, produces intermittent magnetic, attracts magnetizing mediums 24, compression spring during attracting 25, make film 19 also produce the compression of indirect, during the intermittent compression of film 19 and restoring to the original state, make mud be difficult to It is attached to film 19 surface, and the mud having attached to film 19 surface can be removed;
7th step, sewage are discharged after membrane bioreactor sewage purification system processes;Immobilized microorganism ball 13 is raw at film After thing reactor sewage purification system uses a period of time, it is flowed in the MBR pond 3 not having magnetic field, the immobilization of a part Microorganism ball 13 is flowed in collection device 11, and another part immobilized microorganism ball 13 is back in anoxic pond 1 recycle.
Embodiment 2:
Referring to Fig. 1-8, the present invention provides a kind of technical scheme: membrane bioreactor sewage purification system, including anoxic pond 1, Aerobic Pond 2, MBR pond 3 and sterilization pool 4;Sewage through filtering sequentially enters anoxic pond 1, Aerobic Pond 2 and MBR pond 3, after warp Discharging after crossing sterilization pool 4 sterilization, the immobilized microorganism ball 13 of a part can be back to anoxic pond 1 by MBR pond 3, another portion Divide and be expelled in collection device 11;
Anoxic pond 1 includes water inlet pipe 5, outlet pipe 6, container 7, aerator 8 and magnetic field generator 9;Aerobic Pond 2 include into Water pipe 5, outlet pipe 6, aerator 8 and magnetic field generator 9;MBR pond 3 includes water inlet pipe 5, outlet pipe 6, aerator 8, returns Flow tube 10, collection device 11 and membrane module 12;
Membrane module 12 in MBR pond 3 connects outlet pipe 6;Container 7 is used for containing immobilized microorganism ball 13;The bottom in MBR pond 3 It is provided with collection device 11, is used for collecting immobilized microorganism ball 13;The bottom in MBR pond 3 connects back to flow tube 10, for by a part Immobilized microorganism 13 be back to anoxic pond 1;
Immobilized microorganism ball 13 includes magnetizing mediums 14 and activated sludge 15, a diameter of 13mm of immobilized microorganism ball 13;Magnetic Medium 14 is the metallic nickel for after Passivation Treatment, a diameter of 2mm of magnetizing mediums 14, magnetizing mediums 14 without magnetic, but Can magnetize under the influence of a magnetic field, activated sludge 15 is rich in microorganism;Activated sludge 15 is wrapped in magnetizing mediums 14, is formed Spherical;Magnetic field generator 9 produces magnetic field, and then makes immobilized microorganism ball 13 locate in membrane bioreactor sewage purification system In suspended state;
Membrane module 12 includes membrane body 16, top cover 20, base 23 and spring 25, and membrane body 16 includes water-supply-pipe 17, outlet 18 With film 19, being provided with electric magnet 21 and Flow speed measurer 22 in top cover 20, electric magnet 21 is hollow ring structure, middle through defeated Water pipe 17, electric magnet 21 connects wire, and wire connects alternating-current power supply, so that electric magnet 21 produces intermittent magnetic, inhales Drawing the magnetizing mediums 24 being positioned at base 23, magnetizing mediums 24 can be attracted by electric magnet 21;Flow speed measurer 22 is used for measuring sewage water Stream flow velocity;
Spring 25 is positioned at film 19, the surrounding of water-supply-pipe 17, and spring 25 connects top cover 20 and base 23, the electric magnet in top cover 20 The attraction of 21 indirect is positioned at the magnetizing mediums 24 of base 23, and compression spring 25 during attracting, between making film 19 also produce The compression of connecing property, during the intermittent compression of film 19 and restoring to the original state, makes mud be difficult to be attached to film 19 surface, and And the mud having attached to film 19 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, 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 13 in membrane bioreactor sewage purification system and recovery are by will be enriched in The activated sludge 15 of microorganism by solvent be dissolved into thick after be sufficiently mixed with magnetizing mediums 14, 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 14 does not contains the bead of magnetizing mediums 14 and separates with inside, and it is micro-that the internal bead containing magnetizing mediums 14 is immobilization Biological ball 13;Immobilized microorganism ball 13 is used in membrane bioreactor sewage purification system, and dirty at membrane bioreactor Produce magnetic field by arranging magnetic field generator 9 around water purification system, make immobilized microorganism ball 13 dirty at membrane bioreactor Water purification system is in suspended state;Immobilized microorganism ball 13 is in long-time use, and the activated sludge 15 on surface is gradually Lose activity, by closing magnetic field, make immobilized microorganism ball 13 sink to bottom by the gravity of self and reclaim, finally Passing through to soak by the immobilized microorganism ball 13 reclaimed, roll, centrifugal mode reclaims magnetizing mediums 14;Again the magnetic being recovered to is situated between Matter 14 and activated sludge 15 are sufficiently mixed makes immobilized microorganism ball 13 again.
Membrane bioreactor sewage purification system, its operational approach is:
The first step, open container 7, make the immobilized microorganism ball 13 of inside be flowed into membrane bioreactor sewage purification system In;
Second step, open magnetic field generator 9 and aerator 8, make that membrane bioreactor sewage purification system is internal produces magnetic field, And then make immobilized microorganism ball 13 be in suspended state in membrane bioreactor sewage purification system;
3rd step, the outlet pipe 6 in MBR pond 3 is connected the outlet 18 of upper water-supply-pipe 17 one end;
4th step, opening conduits valve, make sewage be flowed in membrane bioreactor sewage purification system;
5th step, being positioned in MBR pond 3 by membrane module 12, the flow velocity tachymeter 22 being positioned at top cover 20 is capable of detecting when current Speed is 0.9m/s;
6th step, the wire connected by electric magnet 21 connect upper alternating current power supply, and are capable of detecting when water by flow velocity tachymeter 22 Flow Velocity size, the cycle in conjunction with formula regulation alternating current is 600s, and alternating current size I=600v=600*0.9=540mA makes electricity Magnet 21, under the effect of alternating current, produces intermittent magnetic, attracts magnetizing mediums 24, compression spring during attracting 25, make film 19 also produce the compression of indirect, during the intermittent compression of film 19 and restoring to the original state, make mud be difficult to It is attached to film 19 surface, and the mud having attached to film 19 surface can be removed;
7th step, sewage are discharged after membrane bioreactor sewage purification system processes;Immobilized microorganism ball 13 is raw at film After thing reactor sewage purification system uses a period of time, it is flowed in the MBR pond 3 not having magnetic field, the immobilization of a part Microorganism ball 13 is flowed in collection device 11, and another part immobilized microorganism ball 13 is back in anoxic pond 1 recycle.
Embodiment 3:
Referring to Fig. 1-8, the present invention provides a kind of technical scheme: membrane bioreactor sewage purification system, including anoxic pond 1, Aerobic Pond 2, MBR pond 3 and sterilization pool 4;Sewage through filtering sequentially enters anoxic pond 1, Aerobic Pond 2 and MBR pond 3, after warp Discharging after crossing sterilization pool 4 sterilization, the immobilized microorganism ball 13 of a part can be back to anoxic pond 1 by MBR pond 3, another portion Divide and be expelled in collection device 11;
Anoxic pond 1 includes water inlet pipe 5, outlet pipe 6, container 7, aerator 8 and magnetic field generator 9;Aerobic Pond 2 include into Water pipe 5, outlet pipe 6, aerator 8 and magnetic field generator 9;MBR pond 3 includes water inlet pipe 5, outlet pipe 6, aerator 8, returns Flow tube 10, collection device 11 and membrane module 12;
Membrane module 12 in MBR pond 3 connects outlet pipe 6;Container 7 is used for containing immobilized microorganism ball 13;The bottom in MBR pond 3 It is provided with collection device 11, is used for collecting immobilized microorganism ball 13;The bottom in MBR pond 3 connects back to flow tube 10, for by a part Immobilized microorganism 13 be back to anoxic pond 1;
Immobilized microorganism ball 13 includes magnetizing mediums 14 and activated sludge 15, a diameter of 10mm of immobilized microorganism ball 13;Magnetic Medium 14 is the metallic nickel for after Passivation Treatment, a diameter of 1.5mm of magnetizing mediums 14, magnetizing mediums 14 without magnetic, but Being to magnetize under the influence of a magnetic field, activated sludge 15 is rich in microorganism;Activated sludge 15 is wrapped in magnetizing mediums 14, shape Glomeration;Magnetic field generator 9 produces magnetic field, and then makes immobilized microorganism ball 13 in membrane bioreactor sewage purification system It is in suspended state;
Membrane module 12 includes membrane body 16, top cover 20, base 23 and spring 25, and membrane body 16 includes water-supply-pipe 17, outlet 18 With film 19, being provided with electric magnet 21 and Flow speed measurer 22 in top cover 20, electric magnet 21 is hollow ring structure, middle through defeated Water pipe 17, electric magnet 21 connects wire, and wire connects alternating-current power supply, so that electric magnet 21 produces intermittent magnetic, inhales Drawing the magnetizing mediums 24 being positioned at base 23, magnetizing mediums 24 can be attracted by electric magnet 21;Flow speed measurer 22 is used for measuring sewage water Stream flow velocity;
Spring 25 is positioned at film 19, the surrounding of water-supply-pipe 17, and spring 25 connects top cover 20 and base 23, the electric magnet in top cover 20 The attraction of 21 indirect is positioned at the magnetizing mediums 24 of base 23, and compression spring 25 during attracting, between making film 19 also produce The compression of connecing property, during the intermittent compression of film 19 and restoring to the original state, makes mud be difficult to be attached to film 19 surface, and And the mud having attached to film 19 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, 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 13 in membrane bioreactor sewage purification system and recovery are by will be enriched in The activated sludge 15 of microorganism by solvent be dissolved into thick after be sufficiently mixed with magnetizing mediums 14, 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 14 does not contains the bead of magnetizing mediums 14 and separates with inside, and it is micro-that the internal bead containing magnetizing mediums 14 is immobilization Biological ball 13;Immobilized microorganism ball 13 is used in membrane bioreactor sewage purification system, and dirty at membrane bioreactor Produce magnetic field by arranging magnetic field generator 9 around water purification system, make immobilized microorganism ball 13 dirty at membrane bioreactor Water purification system is in suspended state;Immobilized microorganism ball 13 is in long-time use, and the activated sludge 15 on surface is gradually Lose activity, by closing magnetic field, make immobilized microorganism ball 13 sink to bottom by the gravity of self and reclaim, finally Passing through to soak by the immobilized microorganism ball 13 reclaimed, roll, centrifugal mode reclaims magnetizing mediums 14;Again the magnetic being recovered to is situated between Matter 14 and activated sludge 15 are sufficiently mixed makes immobilized microorganism ball 13 again.
Membrane bioreactor sewage purification system, its operational approach is:
The first step, open container 7, make the immobilized microorganism ball 13 of inside be flowed into membrane bioreactor sewage purification system In;
Second step, open magnetic field generator 9 and aerator 8, make that membrane bioreactor sewage purification system is internal produces magnetic field, And then make immobilized microorganism ball 13 be in suspended state in membrane bioreactor sewage purification system;
3rd step, the outlet pipe 6 in MBR pond 3 is connected the outlet 18 of upper water-supply-pipe 17 one end;
4th step, opening conduits valve, make sewage be flowed in membrane bioreactor sewage purification system;
5th step, being positioned in MBR pond 3 by membrane module 12, the flow velocity tachymeter 22 being positioned at top cover 20 is capable of detecting when current Speed is 1.4m/s;
6th step, the wire connected by electric magnet 21 connect upper alternating current power supply, and are capable of detecting when water by flow velocity tachymeter 22 Flow Velocity size, the cycle in conjunction with formula regulation alternating current is 300s, and alternating current size I=600v=600*1.4=840mA makes electricity Magnet 21, under the effect of alternating current, produces intermittent magnetic, attracts magnetizing mediums 24, compression spring during attracting 25, make film 19 also produce the compression of indirect, during the intermittent compression of film 19 and restoring to the original state, make mud be difficult to It is attached to film 19 surface, and the mud having attached to film 19 surface can be removed;
7th step, sewage are discharged after membrane bioreactor sewage purification system processes;Immobilized microorganism ball 13 is raw at film After thing reactor sewage purification system uses a period of time, it is flowed in the MBR pond 3 not having magnetic field, the immobilization of a part Microorganism ball 13 is flowed in collection device 11, and another part immobilized microorganism ball 13 is back in anoxic pond 1 recycle.
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. membrane bioreactor sewage purification system, it is characterised in that: include anoxic pond (1), Aerobic Pond (2), MBR pond (3) and Sterilization pool (4);Sewage through filtering sequentially enters anoxic pond (1), Aerobic Pond (2) and MBR pond (3), eventually passes sterilization pool (4) discharging after sterilization, the immobilized microorganism ball (13) of a part can be back to anoxic pond (1) by described MBR pond (3), Another part is expelled in collection device (11);
Described anoxic pond (1) includes water inlet pipe (5), outlet pipe (6), container (7), aerator (8) and magnetic field generator (9);Described Aerobic Pond (2) includes water inlet pipe (5), outlet pipe (6), aerator (8) and magnetic field generator (9);Described MBR pond (3) include water inlet pipe (5), outlet pipe (6), aerator (8), return duct (10), collection device (11) and film group Part (12);
Membrane module (12) in described MBR pond (3) connects outlet pipe (6);Described container (7) is used for containing the micro-life of immobilization Thing ball (13);The bottom in described MBR pond (3) is provided with collection device (11), is used for collecting immobilized microorganism ball (13);Described The bottom in MBR pond (3) connect back to flow tube (10), for the immobilized microorganism (13) of a part is back to anoxic pond (1);
Described immobilized microorganism ball (13) includes magnetizing mediums (14) and activated sludge (15), described magnetizing mediums (14) without Being magnetic, but can magnetize under the influence of a magnetic field, described activated sludge (15) is rich in microorganism;Described activity Mud (15) is wrapped in magnetizing mediums (14), is formed spherical;Described magnetic field generator (9) produces magnetic field, and then makes immobilization micro- Biological ball (13) is in suspended state in described membrane bioreactor sewage purification system;
Described membrane module (12) includes membrane body (16), top cover (20), base (23) and spring (25), described described film Body (16) includes water-supply-pipe (17), outlet (18) and film (19), be provided with in described top cover (20) electric magnet (21) and Flow speed measurer (22), described electric magnet (21) is hollow ring structure, middle through water-supply-pipe (17), described electric magnet (21) connecting wire, wire connects alternating-current power supply, so that electric magnet (21) produces intermittent magnetic, attracts to be positioned at base (23) magnetizing mediums (24), described magnetizing mediums (24) can be attracted by electric magnet (21);Described Flow speed measurer (22) is used In measuring sewage flow rate of water flow;
Described spring (25) is positioned at film (19), the surrounding of water-supply-pipe (17), described spring (25) connect top cover (20) with Base (23), the attraction of described electric magnet (21) indirect in top cover (20) is positioned at the magnetizing mediums (24) of base (23), Compression spring (25) during attracting, makes film (19) also produce the compression of indirect, by film (19) intermittent compression During restoring to the original state, make mud be difficult to be attached to film (19) surface, and can remove and have attached to film (19) table The mud in face;
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, unit is s;
I is alternating current size, and unit is mA;
V is sewage water velocity, and unit is m/s.
Membrane bioreactor sewage purification system the most according to claim 1, it is characterised in that: described membrane biological reaction The preparation of the immobilized microorganism ball (13) in device sewage purification system is the activated sludge by will be enriched in microorganism with recovery (15) by solvent be dissolved into thick after be sufficiently mixed with magnetizing mediums (14), then become bead also by Mold Making in mixture Air-dry;Bead after air-drying again is placed among magnetic field, and under the active force in magnetic field, inside is little containing magnetizing mediums (14) Ball does not contains the bead of magnetizing mediums (14) and separates with inside, and the internal bead containing magnetizing mediums (14) is immobilized microorganism ball (13);By immobilized microorganism ball (13) in described membrane bioreactor sewage purification system and raw at described film By arranging magnetic field generator (9) generation magnetic field around thing reactor sewage purification system, immobilized microorganism ball (13) is made to exist Described membrane bioreactor sewage purification system is in suspended state;Immobilized microorganism ball (13) uses long-time In, the activated sludge (15) on surface loses activity gradually, by closing magnetic field, makes immobilized microorganism ball (13) pass through self Gravity sinks to bottom and reclaims, and finally passes through to soak by the immobilized microorganism ball (13) reclaimed, rolls, centrifugal mode Reclaim magnetizing mediums (14);Again the magnetizing mediums (14) being recovered to and activated sludge (15) are sufficiently mixed and again make the micro-life of immobilization Thing ball (13).
Membrane bioreactor sewage purification system the most according to claim 2, it is characterised in that: the micro-life of described immobilization A diameter of 7 ~ 13mm of thing ball (13).
Membrane bioreactor sewage purification system the most according to claim 1, it is characterised in that: described magnetizing mediums (14) For metallic nickel.
Membrane bioreactor sewage purification system the most according to claim 4, it is characterised in that: described metallic nickel is warp Metallic nickel after transpassivation process.
Membrane bioreactor sewage purification system the most according to claim 4, it is characterised in that: described magnetizing mediums (14) A diameter of 1 ~ 2mm.
Membrane bioreactor sewage purification system the most according to claim 1, its operational approach is:
The first step, open container (7), make the immobilized microorganism ball (13) of inside be flowed into described membrane bioreactor sewage In cleaning system;
Second step, open magnetic field generator (9) and aerator (8), in making described membrane bioreactor sewage purification system Generation magnetic field, portion, and then make immobilized microorganism ball (13) be in suspension in described membrane bioreactor sewage purification system State;
3rd step, by the outlet (18) of water-supply-pipe (17) one end in outlet pipe (6) connection in MBR pond (3);
4th step, opening conduits valve, make sewage be flowed in described membrane bioreactor sewage purification system;
5th step, described membrane module (12) is positioned in MBR pond (3), is positioned at the flow velocity tachymeter (22) of top cover (20) It is capable of detecting when water velocity;
6th step, the wire connected by electric magnet (21) connect upper alternating current power supply, and can be detected by flow velocity tachymeter (22) Water discharge flow speed degree size, in conjunction with cycle and the size of formula regulation alternating current, makes electric magnet (21) under the effect of alternating current, produces Raw intermittent magnetic, attracts magnetizing mediums (24), and compression spring (25) during attracting makes film (19) also produce indirect Compression, by film (19) intermittent compression with restore to the original state during, make mud be difficult to be attached to film (19) surface, and And the mud having attached to film (19) surface can be removed;
7th step, sewage are discharged after described membrane bioreactor sewage purification system processes;Immobilized microorganism ball (13), after using a period of time in described membrane bioreactor sewage purification system, it is flowed into the MBR pond (3) not having magnetic field In, the immobilized microorganism ball (13) of a part is flowed in collection device (11), another part immobilized microorganism ball (13) It is back in anoxic pond (1) recycle.
CN201610750991.4A 2016-08-30 2016-08-30 Membrane bioreactor sewage purification system and operational approach thereof Withdrawn CN106186564A (en)

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CN108892232A (en) * 2018-07-05 2018-11-27 嘉兴市盛翔织造有限公司 A kind of membrane bioreactor cleared up automatically
CN114804336A (en) * 2022-01-20 2022-07-29 辽宁师范大学 Device and method for reducing membrane pollution of membrane bioreactor

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CN102228796A (en) * 2011-05-13 2011-11-02 叶茂盛 Pollution resistant membrane module and use method thereof
CN104030521A (en) * 2014-05-21 2014-09-10 成都振中电气有限公司 Wastewater treatment device
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WO2001005715A1 (en) * 1999-07-20 2001-01-25 Zenon Environmental Inc. Biological process for removing phosphorus involving a membrane filter
CN102228796A (en) * 2011-05-13 2011-11-02 叶茂盛 Pollution resistant membrane module and use method thereof
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CN108892232A (en) * 2018-07-05 2018-11-27 嘉兴市盛翔织造有限公司 A kind of membrane bioreactor cleared up automatically
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Application publication date: 20161207