CN106006971A - Biological denitrifying and dephosphorizing sewage treatment system and using method thereof - Google Patents

Biological denitrifying and dephosphorizing sewage treatment system and using method thereof Download PDF

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Publication number
CN106006971A
CN106006971A CN201610563842.7A CN201610563842A CN106006971A CN 106006971 A CN106006971 A CN 106006971A CN 201610563842 A CN201610563842 A CN 201610563842A CN 106006971 A CN106006971 A CN 106006971A
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immobilized microorganism
bio
microorganism ball
magnetic
dephosphorization treatment
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CN201610563842.7A
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江超
王伟
赵鹏
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江超
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    • 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
    • C02F1/48Treatment of water, waste water, or sewage with magnetic or electric fields
    • 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
    • C02F3/30Aerobic and anaerobic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/105Phosphorus compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia

Abstract

The invention discloses a biological denitrifying and dephosphorizing sewage treatment system and a using method thereof. The biological denitrifying and dephosphorizing sewage treatment system comprises a water inlet, an anaerobic tank, an anoxic tank, an aerobic tank, a settling tank and a water outlet. The using method comprises the following steps: firstly, opening a container to enable immobilized microorganism balls to enter the system; secondly, collecting the immobilized microorganism balls used for a long time; and finally, reproducing the collected immobilized microbial balls. The immobilized microorganism balls used in the biological denitrifying and dephosphorizing sewage treatment system and the using method thereof not only can keep activities of microorganisms to purify water, but also can separate sludge from water, with good settling performance; the immobilized microorganism balls have proper diameters; under the action of a magnetic field, the immobilized microorganism balls are in a suspended state, and the activities of the microorganisms can be improved; and the immobilized microorganism balls can be recycled, so that the microorganisms in the immobilized microorganism balls are always in a high-activity state.

Description

A kind of bio-denitrifying sewage dephosphorization treatment system and using method thereof
Technical field
The present invention relates to sewage treatment area, be specially a kind of bio-denitrifying sewage dephosphorization treatment 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, generally one hydropenia country, and the whole nation has the city of 70% to be in exsiccosis;China or a with serious pollution country of water simultaneously, 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 are by unprecedented concern.
Being mainly used in anaerobic pond discharging phosphorus, partial organic substances carries out ammonification simultaneously, also can remove the COD in water, can be by the mixed-liquor return of anoxic pond to anaerobic pond by interior circulation;Being mainly used in denitrogenation in anoxic pond, nitrate nitrogen is back to anoxic pond by interior circulation by Aerobic Pond, and the part immobilized microorganism ball in anoxic pond is come by sedimentation tank backflow;Aerobic Pond is used for removing BOD in water, ammonia and nitrogen organic and nitrification and absorption phosphorus, and Organic substance in water is decomposed into inorganic matter;Sedimentation tank is used for purifying water, and the water after sedimentation tank precipitates can be expelled directly out.
The effect of detention tank is mainly mud-water separation, and the method that routine uses is free sedimentation, flocculation sediment, group's precipitation and compression precipitating, but method of each precipitation has respective shortcoming, or the sedimentation time is oversize, or mud-water separation is not thorough, settleability is bad.
Summary of the invention
It is an object of the invention to provide a kind of bio-denitrifying sewage dephosphorization treatment system and using method thereof, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme: a kind of bio-denitrifying sewage dephosphorization treatment system, including water inlet, anaerobic pond, anoxic pond, Aerobic Pond, sedimentation tank and outlet;Sewage enters from water inlet, pass sequentially through anaerobic pond, anoxic pond, Aerobic Pond, sedimentation tank, finally discharge from outlet, the described mixed liquor in Aerobic Pond can be back to anoxic pond, mixed liquor in anoxic pond can be back to anaerobic pond, an immobilized microorganism ball part in described sedimentation tank is back to anoxic pond, and another part is discharged;
Described anaerobic pond includes outlet pipe, water inlet pipe, container and magnetic field generator;Described anoxic pond and Aerobic Pond include outlet pipe, water inlet pipe, magnetic field generator, return duct and aerator;Described sedimentation tank includes outlet pipe, water inlet pipe, return duct and collection device;
Described container is used for containing immobilized microorganism ball;The bottom of described sedimentation tank is provided with collection device, is used for collecting immobilized microorganism ball;The bottom of described sedimentation tank connects back to flow tube, for being back in anoxic pond by the immobilized microorganism ball of a part;
Described immobilized microorganism bag includes magnetizing mediums and activated sludge, and described magnetizing mediums is without magnetic, but can magnetize under the influence of a magnetic field, and described activated sludge is rich in microorganism;Described activated sludge is wrapped in magnetizing mediums, is formed spherical;Described magnetic field generator produces magnetic field, and then makes immobilized microorganism ball be in suspended state in described a kind of bio-denitrifying sewage dephosphorization treatment system.
Preferably, the preparation of the described immobilized microorganism ball in a kind of bio-denitrifying sewage dephosphorization treatment system and to reclaim be to be dissolved into by solvent and thick be sufficiently mixed with magnetizing mediums afterwards by will be enriched in the activated sludge of microorganism, then become bead sector-style of going forward side by side to do by Mold Making in mixture;Bead after air-drying again is placed among magnetic field, and under the active force in magnetic field, the bead that the internal bead containing magnetizing mediums does not contains magnetizing mediums with inside separates, and the internal bead containing magnetizing mediums is immobilized microorganism ball;Immobilized microorganism ball is used in described a kind of bio-denitrifying sewage dephosphorization treatment system, and by arranging magnetic field generator generation magnetic field around described a kind of bio-denitrifying sewage dephosphorization treatment system, make immobilized microorganism ball be in suspended state in described a kind of bio-denitrifying sewage dephosphorization treatment system;Immobilized microorganism ball is in long-time use, the activated sludge on surface loses activity gradually, the immobilized microorganism ball being not provided with in the sedimentation tank in magnetic field around being flowed into sinks to bottom by the gravity of self and reclaims, finally by the immobilized microorganism ball reclaimed by soaking, rolling, 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 0.3 ~ 0.9mm 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 0.1 ~ 0.3mm of described magnetizing mediums.
Described a kind of bio-denitrifying sewage dephosphorization treatment system, its using method is:
The first step, open container, make immobilized microorganism ball be flowed in described a kind of bio-denitrifying sewage dephosphorization treatment system;
Second step, open magnetic field generator and aerator, make that described a kind of bio-denitrifying sewage dephosphorization treatment system is internal produces magnetic field, and then make immobilized microorganism ball be in suspended state in described a kind of bio-denitrifying sewage dephosphorization treatment system;
3rd step, opening conduits valve, sewage is flowed into described a kind of bio-denitrifying sewage dephosphorization treatment system from water inlet;
4th step, sewage are discharged after the sedimentation tank in described a kind of bio-denitrifying sewage dephosphorization treatment system precipitates;Immobilized microorganism ball is not provided with in the sedimentation tank in magnetic field around being flowed into after using a period of time in described a kind of bio-denitrifying sewage dephosphorization treatment system, sink to bottom sedimentation tank by the gravity of self, and entering in collection device, part immobilized microorganism ball is back in anoxic pond by return duct.
Compared with prior art, the invention has the beneficial effects as follows: the immobilized microorganism ball that described a kind of bio-denitrifying sewage dephosphorization treatment system and using method thereof are used uses immobilized mode can make Microorganism incubation, this mode can not only maintain the activity of microorganism, preferably purify water, and can preferably make mud-water separation, settleability is good;A diameter of 0.3 ~ 0.9mm of immobilized microorganism ball, the diameter of immobilized microorganism ball will need bigger magnetic field that immobilized microorganism ball just can be made to suspend because of too big, sewage also will not be difficult to touch the microorganism inside immobilized microorganism ball because the diameter of immobilized microorganism ball is too big, and immobilized microorganism ball also will not be difficult to because diameter is the least prepare and reclaim;Two, immobilized microorganism bag includes magnetizing mediums and activated sludge, magnetizing mediums can make magnetizing mediums magnetize under the effect of externally-applied magnetic field, immobilized microorganism ball is enable to be in suspended state under the influence of a magnetic field, thus may advantageously facilitate the circulation of microorganism and improve microbial activity, can preferably purify water;Immobilized microorganism ball also will not be made to be damaged by the way of magnetic field controls immobilized microorganism ball;Three, immobilized microorganism ball can recycle, one side is due to the bacteria metabolism in immobilized microorganism ball and processes sewage for a long time, cause the microorganism in immobilized microorganism ball slowly old dead, use the mode reclaimed periodically discharge and supplement immobilized microorganism ball, the microorganism in immobilized microorganism ball can be made to be in high activity state all the time;On the other hand in water, flocculence or floating microorganism can be discharged together along with immobilized microorganism ball, and the microorganism of discharge is also used as preparing the raw material of immobilized microorganism ball.
Accompanying drawing explanation
Fig. 1 is the system structure schematic diagram of the present invention;
Fig. 2 is the structural representation of anaerobic pond of the present invention;
Fig. 3 is the structural representation of anoxic pond of the present invention;
Fig. 4 is the structural representation of sedimentation tank of the present invention;
Fig. 5 is the structural representation of the immobilized microorganism ball of the present invention.
In figure: 1, water inlet, 2, anaerobic pond, 3, anoxic pond, 4, Aerobic Pond, 5, sedimentation tank, 6, outlet, 7, immobilized microorganism ball, 8, outlet pipe, 9, water inlet pipe, 10, container, 11, magnetic field generator, 12, return duct, 13, aerator, 14, collection device, 15, magnetizing mediums, 16, activated sludge.
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 clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment 1:
Referring to Fig. 1-5, the present invention provides a kind of technical scheme: a kind of bio-denitrifying sewage dephosphorization treatment system, including water inlet 1, anaerobic pond 2, anoxic pond 3, Aerobic Pond 4, sedimentation tank 5 and outlet 6;Sewage enters from water inlet 1, pass sequentially through anaerobic pond 2, anoxic pond 3, Aerobic Pond 4, sedimentation tank 5, finally discharge from outlet 6, mixed liquor in Aerobic Pond 4 can be back to anoxic pond 3, mixed liquor in anoxic pond 3 can be back to anaerobic pond 2, immobilized microorganism ball 7 part in sedimentation tank 5 is back to anoxic pond 3, and another part is discharged;
Anaerobic pond 2 includes outlet pipe 8, water inlet pipe 9, container 10 and magnetic field generator 11;Anoxic pond 3 and Aerobic Pond 4 include outlet pipe 8, water inlet pipe 9, magnetic field generator 11, return duct 12 and aerator 13;Sedimentation tank 5 includes outlet pipe 8, water inlet pipe 9, return duct 12 and collection device 14;
Container 10 is used for containing immobilized microorganism ball 7;The bottom of sedimentation tank 5 is provided with collection device 14, is used for collecting immobilized microorganism ball 7;The bottom of sedimentation tank 5 connects back to flow tube 12, for being back in anoxic pond 3 by the immobilized microorganism ball 7 of a part;
Immobilized microorganism ball 7 includes magnetizing mediums 15 and activated sludge 16, a diameter of 0.3mm of immobilized microorganism ball 7, magnetizing mediums 15 is the metallic nickel after Passivation Treatment, a diameter of 0.1mm of magnetizing mediums 15, magnetizing mediums 15 is without magnetic, but can magnetize under the influence of a magnetic field, activated sludge 16 is rich in microorganism;Activated sludge 16 is wrapped in magnetizing mediums 15, is formed spherical;Magnetic field generator 11 produces magnetic field, and then makes immobilized microorganism ball 7 be in suspended state in a kind of bio-denitrifying sewage dephosphorization treatment system.
The preparation of the immobilized microorganism ball 7 in a kind of bio-denitrifying sewage dephosphorization treatment system and to reclaim be to be dissolved into by solvent and thick be sufficiently mixed with magnetizing mediums 15 afterwards by will be enriched in the activated sludge 16 of microorganism, then become bead sector-style of going forward side by side to do by Mold Making in mixture;Bead after air-drying again is placed among magnetic field, and under the active force in magnetic field, the bead that the internal bead containing magnetizing mediums 15 does not contains magnetizing mediums 15 with inside separates, and the internal bead containing magnetizing mediums 15 is immobilized microorganism ball 7;Immobilized microorganism ball 7 is used in a kind of bio-denitrifying sewage dephosphorization treatment system, and produce magnetic field by arranging magnetic field generator 11 around a kind of bio-denitrifying sewage dephosphorization treatment system, make immobilized microorganism ball 7 be in suspended state in a kind of bio-denitrifying sewage dephosphorization treatment system;Immobilized microorganism ball 7 is in long-time use, the activated sludge 16 on surface loses activity gradually, the immobilized microorganism ball 7 being not provided with in the sedimentation tank 5 in magnetic field around being flowed into sinks to bottom by the gravity of self and reclaims, finally by the immobilized microorganism ball 7 reclaimed by soaking, rolling, centrifugal mode reclaims magnetizing mediums 15;Again the magnetizing mediums 15 being recovered to is sufficiently mixed with activated sludge 16 and again makes immobilized microorganism ball 7.
A kind of bio-denitrifying sewage dephosphorization treatment system, its using method is:
The first step, open container 10, make immobilized microorganism ball 7 be flowed in a kind of bio-denitrifying sewage dephosphorization treatment system;
Second step, open magnetic field generator 11 and aerator 13, make the internal magnetic field that produces of a kind of bio-denitrifying sewage dephosphorization treatment system, and then make immobilized microorganism ball 7 be in suspended state in a kind of bio-denitrifying sewage dephosphorization treatment system;
3rd step, opening conduits valve, sewage is flowed into a kind of bio-denitrifying sewage dephosphorization treatment system from water inlet 1;
4th step, sewage are discharged after the sedimentation tank 5 in a kind of bio-denitrifying sewage dephosphorization treatment system precipitates;Immobilized microorganism ball 7 is not provided with in the sedimentation tank 5 in magnetic field around being flowed into after using a period of time in a kind of bio-denitrifying sewage dephosphorization treatment system, sink to bottom sedimentation tank 5 by the gravity of self, and entering in collection device 14, part immobilized microorganism ball 7 is back in anoxic pond 3 by return duct 12.
Embodiment 2:
Referring to Fig. 1-5, the present invention provides a kind of technical scheme: a kind of bio-denitrifying sewage dephosphorization treatment system, including water inlet 1, anaerobic pond 2, anoxic pond 3, Aerobic Pond 4, sedimentation tank 5 and outlet 6;Sewage enters from water inlet 1, pass sequentially through anaerobic pond 2, anoxic pond 3, Aerobic Pond 4, sedimentation tank 5, finally discharge from outlet 6, mixed liquor in Aerobic Pond 4 can be back to anoxic pond 3, mixed liquor in anoxic pond 3 can be back to anaerobic pond 2, immobilized microorganism ball 7 part in sedimentation tank 5 is back to anoxic pond 3, and another part is discharged;
Anaerobic pond 2 includes outlet pipe 8, water inlet pipe 9, container 10 and magnetic field generator 11;Anoxic pond 3 and Aerobic Pond 4 include outlet pipe 8, water inlet pipe 9, magnetic field generator 11, return duct 12 and aerator 13;Sedimentation tank 5 includes outlet pipe 8, water inlet pipe 9, return duct 12 and collection device 14;
Container 10 is used for containing immobilized microorganism ball 7;The bottom of sedimentation tank 5 is provided with collection device 14, is used for collecting immobilized microorganism ball 7;The bottom of sedimentation tank 5 connects back to flow tube 12, for being back in anoxic pond 3 by the immobilized microorganism ball 7 of a part;
Immobilized microorganism ball 7 includes magnetizing mediums 15 and activated sludge 16, a diameter of 0.9mm of immobilized microorganism ball 7, magnetizing mediums 15 is the metallic nickel after Passivation Treatment, a diameter of 0.3mm of magnetizing mediums 15, magnetizing mediums 15 is without magnetic, but can magnetize under the influence of a magnetic field, activated sludge 16 is rich in microorganism;Activated sludge 16 is wrapped in magnetizing mediums 15, is formed spherical;Magnetic field generator 11 produces magnetic field, and then makes immobilized microorganism ball 7 be in suspended state in a kind of bio-denitrifying sewage dephosphorization treatment system.
The preparation of the immobilized microorganism ball 7 in a kind of bio-denitrifying sewage dephosphorization treatment system and to reclaim be to be dissolved into by solvent and thick be sufficiently mixed with magnetizing mediums 15 afterwards by will be enriched in the activated sludge 16 of microorganism, then become bead sector-style of going forward side by side to do by Mold Making in mixture;Bead after air-drying again is placed among magnetic field, and under the active force in magnetic field, the bead that the internal bead containing magnetizing mediums 15 does not contains magnetizing mediums 15 with inside separates, and the internal bead containing magnetizing mediums 15 is immobilized microorganism ball 7;Immobilized microorganism ball 7 is used in a kind of bio-denitrifying sewage dephosphorization treatment system, and produce magnetic field by arranging magnetic field generator 11 around a kind of bio-denitrifying sewage dephosphorization treatment system, make immobilized microorganism ball 7 be in suspended state in a kind of bio-denitrifying sewage dephosphorization treatment system;Immobilized microorganism ball 7 is in long-time use, the activated sludge 16 on surface loses activity gradually, the immobilized microorganism ball 7 being not provided with in the sedimentation tank 5 in magnetic field around being flowed into sinks to bottom by the gravity of self and reclaims, finally by the immobilized microorganism ball 7 reclaimed by soaking, rolling, centrifugal mode reclaims magnetizing mediums 15;Again the magnetizing mediums 15 being recovered to is sufficiently mixed with activated sludge 16 and again makes immobilized microorganism ball 7.
A kind of bio-denitrifying sewage dephosphorization treatment system, its using method is:
The first step, open container 10, make immobilized microorganism ball 7 be flowed in a kind of bio-denitrifying sewage dephosphorization treatment system;
Second step, open magnetic field generator 11 and aerator 13, make the internal magnetic field that produces of a kind of bio-denitrifying sewage dephosphorization treatment system, and then make immobilized microorganism ball 7 be in suspended state in a kind of bio-denitrifying sewage dephosphorization treatment system;
3rd step, opening conduits valve, sewage is flowed into a kind of bio-denitrifying sewage dephosphorization treatment system from water inlet 1;
4th step, sewage are discharged after the sedimentation tank 5 in a kind of bio-denitrifying sewage dephosphorization treatment system precipitates;Immobilized microorganism ball 7 is not provided with in the sedimentation tank 5 in magnetic field around being flowed into after using a period of time in a kind of bio-denitrifying sewage dephosphorization treatment system, sink to bottom sedimentation tank 5 by the gravity of self, and entering in collection device 14, part immobilized microorganism ball 7 is back in anoxic pond 3 by return duct 12.
Embodiment 3:
Referring to Fig. 1-5, the present invention provides a kind of technical scheme: a kind of bio-denitrifying sewage dephosphorization treatment system, including water inlet 1, anaerobic pond 2, anoxic pond 3, Aerobic Pond 4, sedimentation tank 5 and outlet 6;Sewage enters from water inlet 1, pass sequentially through anaerobic pond 2, anoxic pond 3, Aerobic Pond 4, sedimentation tank 5, finally discharge from outlet 6, mixed liquor in Aerobic Pond 4 can be back to anoxic pond 3, mixed liquor in anoxic pond 3 can be back to anaerobic pond 2, immobilized microorganism ball 7 part in sedimentation tank 5 is back to anoxic pond 3, and another part is discharged;
Anaerobic pond 2 includes outlet pipe 8, water inlet pipe 9, container 10 and magnetic field generator 11;Anoxic pond 3 and Aerobic Pond 4 include outlet pipe 8, water inlet pipe 9, magnetic field generator 11, return duct 12 and aerator 13;Sedimentation tank 5 includes outlet pipe 8, water inlet pipe 9, return duct 12 and collection device 14;
Container 10 is used for containing immobilized microorganism ball 7;The bottom of sedimentation tank 5 is provided with collection device 14, is used for collecting immobilized microorganism ball 7;The bottom of sedimentation tank 5 connects back to flow tube 12, for being back in anoxic pond 3 by the immobilized microorganism ball 7 of a part;
Immobilized microorganism ball 7 includes magnetizing mediums 15 and activated sludge 16, a diameter of 0.6mm of immobilized microorganism ball 7, magnetizing mediums 15 is the metallic nickel after Passivation Treatment, a diameter of 0.2mm of magnetizing mediums 15, magnetizing mediums 15 is without magnetic, but can magnetize under the influence of a magnetic field, activated sludge 16 is rich in microorganism;Activated sludge 16 is wrapped in magnetizing mediums 15, is formed spherical;Magnetic field generator 11 produces magnetic field, and then makes immobilized microorganism ball 7 be in suspended state in a kind of bio-denitrifying sewage dephosphorization treatment system.
The preparation of the immobilized microorganism ball 7 in a kind of bio-denitrifying sewage dephosphorization treatment system and to reclaim be to be dissolved into by solvent and thick be sufficiently mixed with magnetizing mediums 15 afterwards by will be enriched in the activated sludge 16 of microorganism, then become bead sector-style of going forward side by side to do by Mold Making in mixture;Bead after air-drying again is placed among magnetic field, and under the active force in magnetic field, the bead that the internal bead containing magnetizing mediums 15 does not contains magnetizing mediums 15 with inside separates, and the internal bead containing magnetizing mediums 15 is immobilized microorganism ball 7;Immobilized microorganism ball 7 is used in a kind of bio-denitrifying sewage dephosphorization treatment system, and produce magnetic field by arranging magnetic field generator 11 around a kind of bio-denitrifying sewage dephosphorization treatment system, make immobilized microorganism ball 7 be in suspended state in a kind of bio-denitrifying sewage dephosphorization treatment system;Immobilized microorganism ball 7 is in long-time use, the activated sludge 16 on surface loses activity gradually, the immobilized microorganism ball 7 being not provided with in the sedimentation tank 5 in magnetic field around being flowed into sinks to bottom by the gravity of self and reclaims, finally by the immobilized microorganism ball 7 reclaimed by soaking, rolling, centrifugal mode reclaims magnetizing mediums 15;Again the magnetizing mediums 15 being recovered to is sufficiently mixed with activated sludge 16 and again makes immobilized microorganism ball 7.
A kind of bio-denitrifying sewage dephosphorization treatment system, its using method is:
The first step, open container 10, make immobilized microorganism ball 7 be flowed in a kind of bio-denitrifying sewage dephosphorization treatment system;
Second step, open magnetic field generator 11 and aerator 13, make the internal magnetic field that produces of a kind of bio-denitrifying sewage dephosphorization treatment system, and then make immobilized microorganism ball 7 be in suspended state in a kind of bio-denitrifying sewage dephosphorization treatment system;
3rd step, opening conduits valve, sewage is flowed into a kind of bio-denitrifying sewage dephosphorization treatment system from water inlet 1;
4th step, sewage are discharged after the sedimentation tank 5 in a kind of bio-denitrifying sewage dephosphorization treatment system precipitates;Immobilized microorganism ball 7 is not provided with in the sedimentation tank 5 in magnetic field around being flowed into after using a period of time in a kind of bio-denitrifying sewage dephosphorization treatment system, sink to bottom sedimentation tank 5 by the gravity of self, and entering in collection device 14, part immobilized microorganism ball 7 is back in anoxic pond 3 by return duct 12.
The above; it is only the 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 is in the technical scope that the invention discloses; conceive in addition equivalent or change according to technical scheme and improvement thereof, all should contain within the scope of the present invention.

Claims (7)

1. a bio-denitrifying sewage dephosphorization treatment system, it is characterised in that: include water inlet (1), anaerobic pond (2), anoxic pond (3), Aerobic Pond (4), sedimentation tank (5) and outlet (6);Sewage enters from water inlet (1), pass sequentially through anaerobic pond (2), anoxic pond (3), Aerobic Pond (4), sedimentation tank (5), finally discharge from outlet (6), the described mixed liquor in Aerobic Pond (4) can be back to anoxic pond (3), mixed liquor in anoxic pond (3) can be back to anaerobic pond (2), described immobilized microorganism ball (7) part in sedimentation tank (5) is back to anoxic pond (3), and another part is discharged;
Described anaerobic pond (2) includes outlet pipe (8), water inlet pipe (9), container (10) and magnetic field generator (11);Described anoxic pond (3) and Aerobic Pond (4) include outlet pipe (8), water inlet pipe (9), magnetic field generator (11), return duct (12) and aerator (13);Described sedimentation tank (5) includes outlet pipe (8), water inlet pipe (9), return duct (12) and collection device (14);
Described container (10) is used for containing immobilized microorganism ball (7);The bottom of described sedimentation tank (5) is provided with collection device (14), is used for collecting immobilized microorganism ball (7);The bottom of described sedimentation tank (5) connects back to flow tube (12), for being back in anoxic pond (3) by the immobilized microorganism ball (7) of a part;
Described immobilized microorganism ball (7) includes magnetizing mediums (15) and activated sludge (16), and described magnetizing mediums (15) is without magnetic, but can magnetize under the influence of a magnetic field, and described activated sludge (16) is rich in microorganism;Described activated sludge (16) is wrapped in magnetizing mediums (15), is formed spherical;Described magnetic field generator (11) produces magnetic field, and then makes immobilized microorganism ball (7) be in suspended state in described a kind of bio-denitrifying sewage dephosphorization treatment system.
A kind of bio-denitrifying sewage dephosphorization treatment system the most according to claim 1, it is characterized in that: the preparation of the described immobilized microorganism ball (7) in a kind of bio-denitrifying sewage dephosphorization treatment system and to reclaim be to be dissolved into by solvent and thick be sufficiently mixed with magnetizing mediums (15) afterwards by will be enriched in the activated sludge of microorganism (16), then become bead sector-style of going forward side by side to do by Mold Making in mixture;Bead after air-drying again is placed among magnetic field, and under the active force in magnetic field, the bead that the internal bead containing magnetizing mediums (15) does not contains magnetizing mediums (15) with inside separates, and the internal bead containing magnetizing mediums (15) is immobilized microorganism ball (7);By immobilized microorganism ball (7) in described a kind of bio-denitrifying sewage dephosphorization treatment system, and by arranging magnetic field generator (11) generation magnetic field around described a kind of bio-denitrifying sewage dephosphorization treatment system, make immobilized microorganism ball (7) be in suspended state in described a kind of bio-denitrifying sewage dephosphorization treatment system;Immobilized microorganism ball (7) is in long-time use, the activated sludge (16) on surface loses activity gradually, the immobilized microorganism ball (7) being not provided with in the sedimentation tank (5) in magnetic field around being flowed into sinks to bottom by the gravity of self and reclaims, finally by the immobilized microorganism ball (7) reclaimed by soaking, rolling, centrifugal mode reclaims magnetizing mediums (15);Again the magnetizing mediums (15) being recovered to and activated sludge (16) are sufficiently mixed and again make immobilized microorganism ball (7).
A kind of bio-denitrifying sewage dephosphorization treatment system the most according to claim 2, it is characterised in that: a diameter of 0.3 ~ 0.9mm of described immobilized microorganism ball (7).
A kind of bio-denitrifying sewage dephosphorization treatment system the most according to claim 1, it is characterised in that: described magnetizing mediums (15) is metallic nickel.
A kind of bio-denitrifying sewage dephosphorization treatment system the most according to claim 4, it is characterised in that: described metallic nickel is the metallic nickel after Passivation Treatment.
A kind of bio-denitrifying sewage dephosphorization treatment system the most according to claim 4, it is characterised in that: a diameter of 0.1 ~ 0.3mm of described magnetizing mediums (15).
A kind of bio-denitrifying sewage dephosphorization treatment system the most according to claim 6, its using method is:
The first step, open container (10), make immobilized microorganism ball (7) be flowed in described a kind of bio-denitrifying sewage dephosphorization treatment system;
Second step, open magnetic field generator (11) and aerator (13), make described a kind of bio-denitrifying sewage dephosphorization treatment system internal generation magnetic field, and then make immobilized microorganism ball (7) be in suspended state in described a kind of bio-denitrifying sewage dephosphorization treatment system;
3rd step, opening conduits valve, sewage is flowed into described a kind of bio-denitrifying sewage dephosphorization treatment system from water inlet (1);
4th step, sewage are discharged after the sedimentation tank (5) in described a kind of bio-denitrifying sewage dephosphorization treatment system precipitates;Immobilized microorganism ball (7) is not provided with in the sedimentation tank (5) in magnetic field around being flowed into after using a period of time in described a kind of bio-denitrifying sewage dephosphorization treatment system, sedimentation tank (5) bottom is sunk to by the gravity of self, and entering in collection device (14), part immobilized microorganism ball (7) is back in anoxic pond (3) by return duct (12).
CN201610563842.7A 2016-07-18 2016-07-18 Biological denitrifying and dephosphorizing sewage treatment system and using method thereof Withdrawn CN106006971A (en)

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