CN106745705A - A kind of preparation method and application of nano-silicon fungi type magnetic aerobic particle mud - Google Patents
A kind of preparation method and application of nano-silicon fungi type magnetic aerobic particle mud Download PDFInfo
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Abstract
The present invention provides a kind of preparation method and application of nano-silicon fungi type magnetic aerobic particle mud, and preparation method is：Ferriferrous oxide nano sphere is diluted in ultrasound in the mixed liquor of distilled water, absolute ethyl alcohol and concentrated ammonia liquor, tetraethyl orthosilicate, magnetic nano-balls ferroso-ferric oxide/silica is added dropwise；In sequencing batch activated sludge reactor, magnetic nano-balls ferroso-ferric oxide/silica and fungi are added in activated Sludge System, prepare and form modified aerobic particle mud；During modified aerobic particle mud impregnated in into the modified solution of ferric trichloride, constant temperature oscillation is cleaned repeatedly with deionized water, obtains nano-silicon fungi type magnetic aerobic particle mud.Application method is：By waste water after grid filtration, regulation pH value to neutrality adds nano-silicon fungi type magnetic aerobic particle mud, precipitation.Nano-silicon fungi type magnetic aerobic grain formation efficiency prepared by the present invention is high, and the ability of denitrogenation of waste water dephosphorization is good.
Description
Technical field
The invention belongs to aerobic particle mud field of material technology, and in particular to a kind of aerobic of nano-silicon fungi type magnetic
The preparation method and application of grain sludge.
Background technology
Granular sludge refer to microorganism in biological treatment of waste water system under appropriate environmental condition, mutually assemble shape
Into a kind of density it is larger, volume is larger, the preferable microbial aggregate of constitution.Granule sludge has good settling property, close
The ability of real structure, the biomass of higher concentration and stronger impact load and resistance poisonous and harmful substance.Granule sludge is pressed
According to the difference of electron acceptor in microbial metabolism, it is divided into aerobic particle mud and anaerobic grain sludge, wherein, aerobic grain
Sludge is that Mishima etc. had found in 1991, and aerobic particle mud is to come from microorganism under the effect of certain hydraulic shear
A kind of aggregate particle, have well-regulated profile, closely knit structure, excellent settling property and anti impulsion load high etc. excellent
Point, therefore, have wide practical use at aspects such as treatment high concentrated organic wastewater, poisonous and harmful waste water.
Aerobic particle mud is compared than anaerobic grain sludge, and the starting period is short, can at normal temperatures cultivate operation, dirty to city
Water, high concentrated organic wastewater and denitrogenation dephosphorizing all have clearance very high, however, during one section of aerobic particle mud stable operation
Between after be susceptible to filamentary discharges, microbial activity reduction, in particle the problems such as nuclear disruption, ultimately result in granule sludge unstability
Disintegrate, therefore improve the stability and high efficiency of aerobic particle mud system and seem particularly significant.
Research shows that some inert carriers can increase aerobic particle mud as the nucleation material of aerobic particle mud
Capacity of resisting impact load, improve aerobic particle mud steadily in the long term operation performance.Wherein nano ferriferrous oxide is a kind of
Good nucleation carrier, can not only improve sludge organism activity, moreover it is possible to induce the secretion of extracellular polymeric, promote sludge coagulating,
Be conducive to granular sludge, but easily there is chemical change and reunion in water in unmodified magnetic nanoparticle ferroso-ferric oxide
Effect.A kind of cultural method of induction type aerobic particle mud disclosed in Chinese patent CN 106115908A, by diatomite, battalion
Salt, Polyferric Sulfate, liquid engineering strain are supported as additive, activated sludge reactor weight is added to, through intaking, being aerated, stand, strain water
Circular treatment, obtains oxygen-containing granule sludge, and the method promotes the precipitation of aerobic particle mud, tubbiness aerobic grain by additive
The cultivation cycle of sludge, but the material shape heterogeneity of additive, easily cause aerobic particle mud size it is uneven not
Rule, and the Long-Term Properties of aerobic particle mud for preparing also remain to be discussed.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of preparation side of nano-silicon fungi type magnetic aerobic particle mud
Method and application, by nano ferriferrous oxide/silica and fungi be added to aerobic particle mud it is modified in, improve aerobic
The use scope and using effect of grain sludge.
In order to solve the above technical problems, the technical scheme is that：
A kind of nano-silicon fungi type magnetic aerobic particle mud, wraps in the nano-silicon fungi type magnetic aerobic particle mud
Fungi and nanosphere ferroso-ferric oxide/silica are included, the nanosphere ferroso-ferric oxide/silica is core-shell structure, institute
Stating core-shell structure includes sandwich layer and shell, and the sandwich layer is nanosphere ferroso-ferric oxide, and the shell is nano silicon.
Used as the preferred of above-mentioned technical proposal, the main component of the fungi is microbial cells.
The present invention also provides a kind of preparation method of nano-silicon fungi type magnetic aerobic particle mud, comprises the following steps：
(1) ferriferrous oxide nano sphere is diluted in the mixed liquor of distilled water, absolute ethyl alcohol and concentrated ammonia liquor, stirring is equal
It is even, through ultrasonic vibration 3h in Water Tank with Temp.-controlled, tetraethyl orthosilicate is added dropwise, continue magnetic agitation 12h, separated using magnet, obtain
Magnetic-particle, by magnetic-particle absolute ethanol washing 3 times, dries and simultaneously dries, and obtains magnetic nano-balls ferroso-ferric oxide/dioxy
SiClx；
(2) in sequencing batch activated sludge reactor, magnetic nano-balls ferroso-ferric oxide/dioxy prepared by step (1)
SiClx and fungi are added in activated Sludge System, at 15-30 DEG C, under dissolved oxygen DO >=3.0mg/L, are circulated 2-3 weeks daily
Phase, each cycle is 480-720min, wherein, the flooding time in each cycle is 5-10min, and aeration time is 240-
700min, the sedimentation time is 1-10min, and remaining time leaves unused, and prepares and forms modified aerobic particle mud；
(3) in modified aerobic particle mud prepared by step (2) impregnated in into the modified solution of ferric trichloride, constant temperature oscillation
18-20h, is cleaned repeatedly with deionized water, obtains nano-silicon fungi type magnetic aerobic particle mud, is placed in running water, and 4 DEG C are treated
With.
Used as the preferred of above-mentioned technical proposal, in the step (1), the preparation method of ferriferrous oxide nano sphere is：Will
The ferrous chloride of 0.02mol ferric trichlorides and 0.01mol is dissolved in 100ml distilled water as raw material, is stirred under nitrogen atmosphere
1h, is slowly added to 10ml concentrated ammonia liquors and adjusts pH value to 8.5-10, is cooled to room temperature, and magnet is obtained after separating with distilled water cyclic washing
To ferriferrous oxide nano sphere.
As the preferred of above-mentioned technical proposal, in the step (1), distilled water, absolute ethyl alcohol and concentrated ammonia liquor in mixed liquor
Volume ratio be 20:60:1.5.
As the preferred of above-mentioned technical proposal, in the step (1), the mass ratio of ferriferrous oxide nano sphere and mixed liquor
It is 1g:81.5ml.
Used as the preferred of above-mentioned technical proposal, in the step (1), tetraethyl orthosilicate is 4.5- with the volume ratio of total system
5:81.5ml。
As the preferred of above-mentioned technical proposal, in the step (2), the common work of inoculation in the activated sludge reactor
Property sludge bulk index SVI be 202mL/g, sludge concentration MLSS be 4280mg/L.
As the preferred of above-mentioned technical proposal, in the step (2), the common work of inoculation in the activated sludge reactor
Property sludge volume be the volume of the activated sludge reactor for 40-60%, the consumption of the nanosphere is 0.3-1.0g/L.
The present invention also provides a kind of application process of nano-silicon fungi type magnetic aerobic particle mud, it is characterised in that bag
Include following steps：By waste water after grid filtration, regulation pH value to neutrality adds nano-silicon fungi type magnetic aerobic grain dirty
Mud, precipitation.
Compared with prior art, the invention has the advantages that：
(1) by the surface of ferriferrous oxide nano sphere in nano-silicon fungi type magnetic aerobic particle mud prepared by the present invention
Coated silica, solves magnetic ferroferric oxide and chemical change and reuniting effect, and magnetic nano-balls easily occurs in water
The particle size of ferroso-ferric oxide/silica is small, specific surface area is big, surface atom number is more, surface can and surface tension it is big, have
There are quantum size effect, bulk effect, skin effect and macro quanta tunnel effect, nano silicon is received in ferroso-ferric oxide
The surfaces cross-link of rice ball, forms network structure, with certain hydrophobicity, can prevent to reunite, and improves magnetic Nano
The dispersiveness of ball ferroso-ferric oxide/silica.
(2) fungi is contained in nano-silicon fungi type magnetic aerobic particle mud prepared by the present invention, by magnetic nano-balls four
Fe 3 O/silica, together as nucleation material, treatment is modified to aerobic particle mud with fungi, can be led to first
Cross strong magnetic force, magnetic force, Loulun magnetism and magnetic and refer to that cavity effect etc. is acted on, promotion sludge gathers through magnetic, suction-operated is enriched to nanometer
Surface just, accelerates granular sludge, and retain and compound using the slow biology of biological speed, it is to avoid because resistance to mass tranfer causes
Interior nuclear disruption, and suitable magnetics effect can also balance the growth of microorganism in sludge, effectively suppress sludge bulking, improve steady
It is qualitative, and prepare magnetic aerobic particle mud can be recycled using magnetic field, utilization rate is high.
(3) fast, the efficiency high, in magnetic for preparing small speed of nano-silicon fungi type magnetic aerobic particle mud prepared by the present invention
Property nanosphere ferroso-ferric oxide/silica and the collective effect of fungi under, aerobic particle mud can be formed quickly, and system
Standby magnetic nano-balls ferroso-ferric oxide/silica is with fungi to the denitrogenation dephosphorizing and the clearance of stibate in waste water
Height, quickly can carry out removal of impurities to waste water, have wide range of applications, and the nano-silicon fungi type magnetic aerobic particle mud of preparation is reclaimed
It is convenient, can run steadily in the long term, utilization rate is high.
Specific embodiment
Describe the present invention in detail below in conjunction with specific embodiment, herein illustrative examples of the invention and explanation
It is for explaining the present invention but not as a limitation of the invention.
Embodiment 1：
(1) using the ferrous chloride of 0.02mol ferric trichlorides and 0.01mol as raw material, it is dissolved in 100ml distilled water,
1h is stirred under nitrogen atmosphere, 10ml concentrated ammonia liquors is slowly added to and is adjusted pH value to 8.5-10, be cooled to room temperature, magnet is used after separating and steamed
Distilled water cyclic washing obtains ferriferrous oxide nano sphere.
(2) 1g ferriferrous oxide nano spheres are diluted in the dense ammonia of the distilled water of 20ml, the absolute ethyl alcohol of 60ml and 1.5ml
In the mixed liquor of water, stir, through ultrasonic vibration 3h in Water Tank with Temp.-controlled, the tetraethyl orthosilicate of 4.5-5ml is added dropwise, continue magnetic
Power stirs 12h, is separated using magnet, obtains magnetic-particle, by magnetic-particle absolute ethanol washing 3 times, dries and simultaneously dries, and obtains
To magnetic nano-balls ferroso-ferric oxide/silica.
(3) in sequencing batch activated sludge reactor, the bulk index SVI from the ordinary activated sludge of inoculation is
202mL/g, sludge concentration MLSS are 4280mg/L, and the volume of the ordinary activated sludge of inoculation accounts for the volume of activated sludge reactor
It is 40%, the magnetic nano-balls ferroso-ferric oxide/silica and microbial cells of 0.3g/L is added to activated Sludge System
In, at 15 DEG C, under dissolved oxygen DO >=3.0mg/L, daily 2 cycles of circulation, each cycle is 480min, wherein, each week
Flooding time in phase is 5min, and aeration time is 240min, and the sedimentation time is 1min, and remaining time leaves unused, and prepares formation and changes
Property aerobic particle mud.
(4) during modified aerobic particle mud impregnated in the modified solution of ferric trichloride of 0.25g/ml, constant temperature oscillation
18h, is cleaned repeatedly with deionized water, obtains nano-silicon fungi type magnetic aerobic particle mud, is placed in running water, and 4 DEG C stand-by.
(5) by waste water after grid filtration, regulation pH value to neutrality adds nano-silicon fungi type magnetic aerobic grain dirty
Mud, precipitation.
Embodiment 2：
(1) using the ferrous chloride of 0.02mol ferric trichlorides and 0.01mol as raw material, it is dissolved in 100ml distilled water,
1h is stirred under nitrogen atmosphere, 10ml concentrated ammonia liquors is slowly added to and is adjusted pH value to 8.5-10, be cooled to room temperature, magnet is used after separating and steamed
Distilled water cyclic washing obtains ferriferrous oxide nano sphere.
(2) 1g ferriferrous oxide nano spheres are diluted in the dense ammonia of the distilled water of 20ml, the absolute ethyl alcohol of 60ml and 1.5ml
In the mixed liquor of water, stir, through ultrasonic vibration 3h in Water Tank with Temp.-controlled, the tetraethyl orthosilicate of 4.5-5ml is added dropwise, continue magnetic
Power stirs 12h, is separated using magnet, obtains magnetic-particle, by magnetic-particle absolute ethanol washing 3 times, dries and simultaneously dries, and obtains
To magnetic nano-balls ferroso-ferric oxide/silica.
(3) in sequencing batch activated sludge reactor, the bulk index SVI from the ordinary activated sludge of inoculation is
202mL/g, sludge concentration MLSS are 4280mg/L, and the volume of the ordinary activated sludge of inoculation accounts for the volume of activated sludge reactor
It is 60%, the magnetic nano-balls ferroso-ferric oxide/silica and microbial cells of 1.0g/L is added to activated Sludge System
In, at 30 DEG C, under dissolved oxygen DO >=3.0mg/L, daily 3 cycles of circulation, each cycle is 720min, wherein, each week
Flooding time in phase is 10min, and aeration time is 700min, and the sedimentation time is 10min, and remaining time leaves unused, and prepares and is formed
Modified aerobic particle mud.
(4) during modified aerobic particle mud impregnated in the modified solution of ferric trichloride of 0.5g/ml, constant temperature oscillation 20h,
Cleaned repeatedly with deionized water, obtain nano-silicon fungi type magnetic aerobic particle mud, be placed in running water, 4 DEG C stand-by.
(5) by waste water after grid filtration, regulation pH value to neutrality adds nano-silicon fungi type magnetic aerobic grain dirty
Mud, precipitation.
Embodiment 3：
(1) using the ferrous chloride of 0.02mol ferric trichlorides and 0.01mol as raw material, it is dissolved in 100ml distilled water,
1h is stirred under nitrogen atmosphere, 10ml concentrated ammonia liquors is slowly added to and is adjusted pH value to 8.5-10, be cooled to room temperature, magnet is used after separating and steamed
Distilled water cyclic washing obtains ferriferrous oxide nano sphere.
(2) 1g ferriferrous oxide nano spheres are diluted in the dense ammonia of the distilled water of 20ml, the absolute ethyl alcohol of 60ml and 1.5ml
In the mixed liquor of water, stir, through ultrasonic vibration 3h in Water Tank with Temp.-controlled, the tetraethyl orthosilicate of 4.5-5ml is added dropwise, continue magnetic
Power stirs 12h, is separated using magnet, obtains magnetic-particle, by magnetic-particle absolute ethanol washing 3 times, dries and simultaneously dries, and obtains
To magnetic nano-balls ferroso-ferric oxide/silica.
(3) in sequencing batch activated sludge reactor, the bulk index SVI from the ordinary activated sludge of inoculation is
202mL/g, sludge concentration MLSS are 4280mg/L, and the volume of the ordinary activated sludge of inoculation accounts for the volume of activated sludge reactor
It is 50%, the magnetic nano-balls ferroso-ferric oxide/silica and microbial cells of 0.5g/L is added to activated Sludge System
In, at 25 DEG C, under dissolved oxygen DO >=3.0mg/L, daily 2 cycles of circulation, each cycle is 600min, wherein, each week
Flooding time in phase is 8min, and aeration time is 360min, and the sedimentation time is 5min, and remaining time leaves unused, and prepares formation and changes
Property aerobic particle mud.
(4) during modified aerobic particle mud impregnated in the modified solution of ferric trichloride of 0.3g/ml, constant temperature oscillation 19h,
Cleaned repeatedly with deionized water, obtain nano-silicon fungi type magnetic aerobic particle mud, be placed in running water, 4 DEG C stand-by.
(5) by waste water after grid filtration, regulation pH value to neutrality adds nano-silicon fungi type magnetic aerobic grain dirty
Mud, precipitation.
Embodiment 4：
(1) using the ferrous chloride of 0.02mol ferric trichlorides and 0.01mol as raw material, it is dissolved in 100ml distilled water,
1h is stirred under nitrogen atmosphere, 10ml concentrated ammonia liquors is slowly added to and is adjusted pH value to 8.5-10, be cooled to room temperature, magnet is used after separating and steamed
Distilled water cyclic washing obtains ferriferrous oxide nano sphere.
(2) 1g ferriferrous oxide nano spheres are diluted in the dense ammonia of the distilled water of 20ml, the absolute ethyl alcohol of 60ml and 1.5ml
In the mixed liquor of water, stir, through ultrasonic vibration 3h in Water Tank with Temp.-controlled, the tetraethyl orthosilicate of 4.5-5ml is added dropwise, continue magnetic
Power stirs 12h, is separated using magnet, obtains magnetic-particle, by magnetic-particle absolute ethanol washing 3 times, dries and simultaneously dries, and obtains
To magnetic nano-balls ferroso-ferric oxide/silica.
(3) in sequencing batch activated sludge reactor, the bulk index SVI from the ordinary activated sludge of inoculation is
202mL/g, sludge concentration MLSS are 4280mg/L, and the volume of the ordinary activated sludge of inoculation accounts for the volume of activated sludge reactor
It is 55%, the magnetic nano-balls ferroso-ferric oxide/silica and microbial cells of 0.6g/L is added to activated Sludge System
In, at 25 DEG C, under dissolved oxygen DO >=3.0mg/L, daily 2 cycles of circulation, each cycle is 720min, wherein, each week
Flooding time in phase is 6min, and aeration time is 600min, and the sedimentation time is 7min, and remaining time leaves unused, and prepares formation and changes
Property aerobic particle mud.
(4) during modified aerobic particle mud impregnated in the modified solution of ferric trichloride of 0.45g/ml, constant temperature oscillation
18h, is cleaned repeatedly with deionized water, obtains nano-silicon fungi type magnetic aerobic particle mud, is placed in running water, and 4 DEG C stand-by.
(5) by waste water after grid filtration, regulation pH value to neutrality adds nano-silicon fungi type magnetic aerobic grain dirty
Mud, precipitation.
Embodiment 5：
(1) using the ferrous chloride of 0.02mol ferric trichlorides and 0.01mol as raw material, it is dissolved in 100ml distilled water,
1h is stirred under nitrogen atmosphere, 10ml concentrated ammonia liquors is slowly added to and is adjusted pH value to 9.3, be cooled to room temperature, magnet uses distillation after separating
Water cyclic washing obtains ferriferrous oxide nano sphere.
(2) 1g ferriferrous oxide nano spheres are diluted in the dense ammonia of the distilled water of 20ml, the absolute ethyl alcohol of 60ml and 1.5ml
In the mixed liquor of water, stir, through ultrasonic vibration 3h in Water Tank with Temp.-controlled, the tetraethyl orthosilicate of 4.7ml is added dropwise, continue magnetic force
Stirring 12h, is separated using magnet, obtains magnetic-particle, by magnetic-particle absolute ethanol washing 3 times, is dried and is simultaneously dried, and is obtained
Magnetic nano-balls ferroso-ferric oxide/silica.
(3) in sequencing batch activated sludge reactor, the bulk index SVI from the ordinary activated sludge of inoculation is
202mL/g, sludge concentration MLSS are 4280mg/L, and the volume of the ordinary activated sludge of inoculation accounts for the volume of activated sludge reactor
It is 45%, the magnetic nano-balls ferroso-ferric oxide/silica and microbial cells of 0.7g/L is added to activated Sludge System
In, at 20 DEG C, under dissolved oxygen DO >=3.0mg/L, daily 3 cycles of circulation, each cycle is 520min, wherein, each week
Flooding time in phase is 10min, and aeration time is 240min, and the sedimentation time is 10min, and remaining time leaves unused, and prepares and is formed
Modified aerobic particle mud.
(4) during modified aerobic particle mud impregnated in the modified solution of ferric trichloride of 0.5g/ml, constant temperature oscillation 18h,
Cleaned repeatedly with deionized water, obtain nano-silicon fungi type magnetic aerobic particle mud, be placed in running water, 4 DEG C stand-by.
(5) by waste water after grid filtration, regulation pH value to neutrality adds nano-silicon fungi type magnetic aerobic grain dirty
Mud, precipitation.
Embodiment 6：
(1) using the ferrous chloride of 0.02mol ferric trichlorides and 0.01mol as raw material, it is dissolved in 100ml distilled water,
1h is stirred under nitrogen atmosphere, 10ml concentrated ammonia liquors is slowly added to and is adjusted pH value to 8.8, be cooled to room temperature, magnet uses distillation after separating
Water cyclic washing obtains ferriferrous oxide nano sphere.
(2) 1g ferriferrous oxide nano spheres are diluted in the dense ammonia of the distilled water of 20ml, the absolute ethyl alcohol of 60ml and 1.5ml
In the mixed liquor of water, stir, through ultrasonic vibration 3h in Water Tank with Temp.-controlled, the tetraethyl orthosilicate of 4.5ml is added dropwise, continue magnetic force
Stirring 12h, is separated using magnet, obtains magnetic-particle, by magnetic-particle absolute ethanol washing 3 times, is dried and is simultaneously dried, and is obtained
Magnetic nano-balls ferroso-ferric oxide/silica.
(3) in sequencing batch activated sludge reactor, the bulk index SVI from the ordinary activated sludge of inoculation is
202mL/g, sludge concentration MLSS are 4280mg/L, and the volume of the ordinary activated sludge of inoculation accounts for the volume of activated sludge reactor
It is 52%, the magnetic nano-balls ferroso-ferric oxide/silica and microbial cells of 0.9g/L is added to activated Sludge System
In, at 25 DEG C, under dissolved oxygen DO >=3.0mg/L, daily 2 cycles of circulation, each cycle is 720min, wherein, each week
Flooding time in phase is 5-10min, and aeration time is 480min, and the sedimentation time is 6min, and remaining time leaves unused, and prepares and is formed
Modified aerobic particle mud.
(4) during modified aerobic particle mud impregnated in the modified solution of ferric trichloride of 0.35g/ml, constant temperature oscillation
18h, is cleaned repeatedly with deionized water, obtains nano-silicon fungi type magnetic aerobic particle mud, is placed in running water, and 4 DEG C stand-by.
(5) by waste water after grid filtration, regulation pH value to neutrality adds nano-silicon fungi type magnetic aerobic grain dirty
Mud, precipitation.
Comparative example 1：Step (2) in embodiment 1 is removed, other conditions are constant.
Comparative example 2：By the microorganism fungus kind removal in embodiment step (2), other conditions are constant.
After testing, the particle situation of nano-silicon fungi type magnetic aerobic particle mud prepared by embodiment 1-6 and comparative example,
Except the result of waste water situation is as follows：
As seen from the above table, the nano-silicon fungi type magnetic aerobic particle mud grain forming situation that prepared by the present invention is good, right
TN, TP, Sb have good clearance, and the rate of recovery is good, is kept using particle shape for a long time.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under without prejudice to spirit and scope of the invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as
Into all equivalent modifications or change, should be covered by claim of the invention.
Claims (10)
1. a kind of nano-silicon fungi type magnetic aerobic particle mud, it is characterised in that：Aerobic of the nano-silicon fungi type magnetic
Grain sludge includes fungi and nanosphere ferroso-ferric oxide/silica, and the nanosphere ferroso-ferric oxide/silica is shell
Nuclear structure, the core-shell structure includes sandwich layer and shell, and the sandwich layer is nanosphere ferroso-ferric oxide, and the shell is nanometer two
Silica.
2. a kind of nano-silicon fungi type magnetic aerobic particle mud according to claim 1, it is characterised in that：The fungi
Main component be microbial cells.
3. a kind of preparation method of nano-silicon fungi type magnetic aerobic particle mud, it is characterised in that comprise the following steps：
(1) ferriferrous oxide nano sphere is diluted in the mixed liquor of distilled water, absolute ethyl alcohol and concentrated ammonia liquor, is stirred,
Through ultrasonic vibration 3h in Water Tank with Temp.-controlled, tetraethyl orthosilicate is added dropwise, continues magnetic agitation 12h, separated using magnet, obtain magnetic
Grain, by magnetic-particle absolute ethanol washing 3 times, dries and simultaneously dries, and obtains magnetic nano-balls ferroso-ferric oxide/silica；
(2) in sequencing batch activated sludge reactor, magnetic nano-balls ferroso-ferric oxide/silica prepared by step (1)
It is added in activated Sludge System with fungi, at 15-30 DEG C, under dissolved oxygen DO >=3.0mg/L, the 2-3 cycles is circulated daily, often
The individual cycle is 480-720min, wherein, the flooding time in each cycle is 5-10min, and aeration time is 240-700min,
Sedimentation time is 1-10min, and remaining time leaves unused, and prepares and forms modified aerobic particle mud；
(3) in modified aerobic particle mud prepared by step (2) impregnated in into the modified solution of ferric trichloride, constant temperature oscillation 18-
20h, is cleaned repeatedly with deionized water, obtains nano-silicon fungi type magnetic aerobic particle mud, is placed in running water, and 4 DEG C stand-by.
4. a kind of preparation method of nano-silicon fungi type magnetic aerobic particle mud according to claim 3, its feature exists
In：In the step (1), the preparation method of ferriferrous oxide nano sphere is：By the two of 0.02mol ferric trichlorides and 0.01mol
Iron chloride is dissolved in 100ml distilled water as raw material, and 1h is stirred under nitrogen atmosphere, is slowly added to 10ml concentrated ammonia liquors regulation pH
Value is cooled to room temperature to 8.5-10, and magnet obtains ferriferrous oxide nano sphere after separating with distilled water cyclic washing.
5. a kind of preparation method of nano-silicon fungi type magnetic aerobic particle mud according to claim 3, its feature exists
In：In the step (1), the volume ratio of distilled water, absolute ethyl alcohol and concentrated ammonia liquor is 20 in mixed liquor:60:1.5.
6. a kind of preparation method of nano-silicon fungi type magnetic aerobic particle mud according to claim 3, its feature exists
In：In the step (1), ferriferrous oxide nano sphere is 1g with the mass ratio of mixed liquor:81.5ml.
7. a kind of preparation method of nano-silicon fungi type magnetic aerobic particle mud according to claim 3, its feature exists
In：In the step (1), tetraethyl orthosilicate is 4.5-5 with the volume ratio of total system:81.5ml.
8. a kind of preparation method of nano-silicon fungi type magnetic aerobic particle mud according to claim 3, its feature exists
In：In the step (2), the volume of the ordinary activated sludge of inoculation is that the activated sludge is anti-in the activated sludge reactor
The volume of device is answered for 40-60%, the consumption of the nanosphere is 0.3-1.0g/L.
9. a kind of preparation method of nano-silicon fungi type magnetic aerobic particle mud according to claim 3, its feature exists
In：In the step (2), the bulk index SVI of the ordinary activated sludge of inoculation is 202mL/ in the activated sludge reactor
G, sludge concentration MLSS are 4280mg/L.
10. a kind of application process of nano-silicon fungi type magnetic aerobic particle mud, it is characterised in that comprise the following steps：Will
After grid filtration, regulation pH value to neutrality adds nano-silicon fungi type magnetic aerobic particle mud, precipitation to waste water.
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| CN108703417A (en) * | 2018-06-08 | 2018-10-26 | 佛山市南海区佳妍内衣有限公司 | Anti-bacterial briefs based on far-infrared physiotherapy |
| CN112007644A (en) * | 2020-09-09 | 2020-12-01 | 佛山经纬纳科环境科技有限公司 | Salt template method-based two-dimensional Fe/Fe preparation method by recovering Fenton sludge3O4Method for preparing photocatalyst |
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| CN108703417A (en) * | 2018-06-08 | 2018-10-26 | 佛山市南海区佳妍内衣有限公司 | Anti-bacterial briefs based on far-infrared physiotherapy |
| CN112007644A (en) * | 2020-09-09 | 2020-12-01 | 佛山经纬纳科环境科技有限公司 | Salt template method-based two-dimensional Fe/Fe preparation method by recovering Fenton sludge3O4Method for preparing photocatalyst |
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