CN106915822A - A kind of composite magnetic particle based on aluminium nickel cobalt and preparation method thereof - Google Patents
A kind of composite magnetic particle based on aluminium nickel cobalt and preparation method thereof Download PDFInfo
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- CN106915822A CN106915822A CN201710092221.XA CN201710092221A CN106915822A CN 106915822 A CN106915822 A CN 106915822A CN 201710092221 A CN201710092221 A CN 201710092221A CN 106915822 A CN106915822 A CN 106915822A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2806—Anaerobic processes using solid supports for microorganisms
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/481—Treatment of water, waste water, or sewage with magnetic or electric fields using permanent magnets
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- Environmental & Geological Engineering (AREA)
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- Water Treatment By Electricity Or Magnetism (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
A kind of composite magnetic particle based on aluminium nickel cobalt and preparation method thereof, magnetic-particle is used to overcome magnetic induced uneven from nutrition denitrification reactor Distribution of Magnetic Field in the prior art, the problems such as being easy to run off with magnetic, its component is in percentage by weight, be 78% 88% including aluminium-nickel-cobalt magnetic powder, ferroferric oxide powder be 5% 17%, adhesive be 1% 2%, coupling agent 2% 4%, grain diameter is 1 4mm；Extra-granular has clad, and coating thickness is not more than 0.5mm.A kind of composite magnetic particle based on aluminium nickel cobalt that the present invention is provided, moderate in grain size, density is smaller, can be suspended in reaction unit under certain hydraulics, it is advantageously implemented being uniformly distributed for magnetic field in reactor, the magnetic-particle is provided simultaneously with preferable settling property, is difficult to be lost in the draining of reactor.The preparation method of the composite magnetic particle based on aluminium nickel cobalt that the present invention is provided is not required to high-temperature firing, and preparation method is simple and easy to apply, energy saving, and the requirement to process equipment is relatively low.
Description
Technical field
The invention belongs to wastewater treatment field of material technology, it is related to a kind of composite magnetic particle based on aluminium nickel cobalt and its system
Preparation Method.
Background technology
Conventional waste water denitrification organisms treatment technology, frequently with AO（Anaerobic-aerobic）Or AAO（Anaerobic/anoxic is aerobic）Technique,
The removal of nitrogen needs to be removed from water body by aminating reaction, nitration reaction and anti-nitration reaction are final.Wherein aminating reaction can
Carried out under anaerobism or aerobic condition, and nitration reaction can only be carried out under aerobic condition, anti-nitration reaction can only be in anaerobism bar
Carried out under part.In order to ensure the removal effect of nitrogen, nitration reaction and anti-nitration reaction are generally carried out in different reactors, nitre
Change process needs aeration to ensure the dissolved oxygen of abundance, and denitrification process needs to add carbon source to ensure carbon-nitrogen ratio, above aeration
And its add the operating cost that carbon source link improves denitrification process, also cause traditional biological denitrification process floor space compared with
Greatly.
Principle from nutrition denitrification process is that mineralized nitrogen is nitrous state using dissolved oxygen a small amount of in water by ammonia oxidation bacteria
Nitrogen, then anaerobic ammonia oxidizing bacteria using nitrite nitrogen and ammonia nitrogen carry out Anammox reaction generation nitrogen by nitrogen from water
Remove.Relative to traditional AO and AAO techniques, can be completed in same reactor from nutrition denitrification process, be not required to additional carbon,
Demand to dissolved oxygen is low, such that it is able to greatly reduce floor space, reduces operating cost.From in nutrition denitrification process,
Anammox reaction is the key link for influenceing reactor denitrification efficiency, and the anaerobic ammonia oxidizing bacteria generation cycle is long, and enrichment is tired
Difficulty, this is caused from nutrition denitrification process slower development.
Research has shown that the atom of constitutive enzyme is presented paramagnetic properties under most conditions, and magnetic field is by the effect to paramagnetic atoms
Enzymatic activity can indirectly be influenceed.Magnetic field can effectively lift the activity from anaerobic ammonia oxidizing bacteria in nutrition denitrification reactor, have
Beneficial to its fast enriching.
Wang Xiang is published in for third 2000《Environmental science and technology》" biological effects of magnetization in sewage treatment "
Found in text, magnetic field can promote the increase of aerobic respiration place mitochondria number, therefore microbial activity also to get a promotion.Korea Spro
Auspicious being equal to 2002 is celebrated to be published in《Fusun PetroleumCollege's journal》In " magnetic field is made by the reinforcing of Wastewater Treated by Activated Sludge Process waste water
With " one the article pointed out, the activity of enzyme can be stimulated to improve when magnetic field intensity is less than 0.05T, and the treatment effeciency of waste water is also carried
It is high by 11%.Wang Qiang was in Harbin Institute of Technology Ph.D. Dissertation in 2010《The biological denitrificaion mechanism of magnetic strength aerobic denitrifying bacteria
With efficiency》In point out when applied field strengths are 150 mT that the clearance of nitrate nitrogen improves 7.2 %, and dehydrogenase
Activity also improves 2.38 times；The removal of ammonia nitrogen is promoted when magnetic field intensity is between 30~90 mT, and works as magnetic field intensity
The ammonia nitrogen removal best results in 60mT.The above results are conducted a research work, but externally-applied magnetic field by the way of externally-applied magnetic field
Magnetic field intensity in water increases and rapid decay with the distance apart from magnetic field sources, it is difficult to ensure that magnetic field intensity in reactor
It is uniformly distributed.
In order to solve the problems, such as that above-mentioned Distribution of Magnetic Field is uneven, Dai Kelin etc. 2010 is published in《Resources conservation and environmental protection》's
Proposed to the side that magnetic is added in sewage in " mechanism of action and its application of the magnetic effect to Wastewater Treated by Activated Sludge Process sewage " text
Formula improves Distribution of Magnetic Field.Recorded according to this article, when magnetic dosage increases to 1.5g by 0.0g, the activity of dehydrogenase is in improve
Trend, if the active increase rate for being further added by magnetic dosage dehydrogenase on this basis can be declined slightly on the contrary.
In sum, magnetic field is applied in the reactor, the activity of anaerobic ammonia oxidizing bacteria in reactor is favorably improved, from
And improve reactor NH_3-N treating efficiency；Applying the mode of magnetic field sources in reactor helps to improve the magnetic field intensity in reactor
The uniformity of distribution.But the mode of magnetic is directly added in reactor, magnetic is easily along with reaction in actual moving process
The drainage procedure of device and be lost in.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of composite magnetic particle, to overcome magnetic in the prior art to lure
Lead uneven from nutrition denitrification reactor Distribution of Magnetic Field, and magnetic is the problems such as be easy to run off.
A kind of composite magnetic particle based on aluminium nickel cobalt, in percentage by weight, aluminium-nickel-cobalt magnetic powder is its component
78%-88%, ferroferric oxide powder are 5%-17%, adhesive is 1%-2%, coupling agent 2%-4%, and grain diameter is 1-4mm.
Preferably, extra-granular has clad, and coating thickness is not more than 0.5mm.
Described adhesive is the mixture of polyvinyl alcohol and sodium alginate, and mixed weight compares polyvinyl alcohol：Sodium alginate etc.
In 5：3.
The coupling agent is silane KH550.
The coupling agent is Aluminate.
A kind of preparation method of the composite magnetic particle based on aluminium nickel cobalt, comprises the following steps:
（1）By aluminium-nickel-cobalt magnetic powder sieving mesh screen choosing, screen cloth specification be 200 mesh between 400 mesh, be placed in 80-100 in baking oven
Dry for standby at DEG C, by ferroferric oxide powder sieving mesh screen choosing, screen cloth specification be 200 mesh between 400 mesh, be placed in baking oven
Dry for standby at 80-100 DEG C；
（2）By step（1）Middle acquisition dries aluminium-nickel-cobalt magnetic powder, dries ferroferric oxide powder and coupling agent according to following
Percentage by weight, is mixed and stirred for uniform, standing 20-40min in absolute ethyl alcohol, in being dried at 80-100 DEG C in baking oven, takes
Dried powder is standby；Described percentage by weight is：Dry aluminium-nickel-cobalt magnetic powder and account for 80%-92%, dry ferroso-ferric oxide and account for
6%-17%, coupling agent accounts for 2%-5%；
（3）By step（2）Dry powder mixture is obtained to be mixed according to following percentage by weight with adhesive：Dried powder
Mixture accounts for 84%-90%, and binder solution accounts for 10%-16%, after being well mixed, in interior apertured footpath under the spherical module of 1-4mm
It is squeezed into raw material ball；
（4）By step（3）The raw material ball of acquisition is placed in baking oven at 60-80 DEG C and dries, and obtains finished product.
Preferably, by step（3）The raw material ball of acquisition, is dipped in covering, in the k Hz of supersonic frequency 35, ultrasound intensity
5-15min is coated under conditions of 0.6 W/m L, coating thickness is not more than 0.5mm, then carries out step（4）.
Preferably, described adhesive solution be 5% polyvinyl alcohol water solution and 3% sodium alginate aqueous solution by volume
1：1 mixed liquor.
Preferably, described coupling agent is silane KH550.
Preferably, described coupling agent is Aluminate.
Preferably, the covering, by weight percentage, it is 18%, dimethylacetamide to dry Kynoar (PVDF)
Amine is 72%, and pore former Nacl is 10%.
A kind of composite magnetic particle based on aluminium nickel cobalt that the present invention is provided, moderate in grain size, density is smaller, in certain water
Can be suspended in reaction unit under the conditions of power.Can be applied to from nutrition denitrification reactor, be favorably improved in reactor and detest
The activity of anaerobic ammonium oxidation bacterium, is conducive to the attachment and growth of microorganism in reactor, reduces the loss of microorganism, improves reactor
Interior biomass, while also contributing to the quick startup from nutrition denitrification reaction system.The magnetic-particle is added to waste water
In processing unit, magnetic-particle can be in suspended state with the hydraulic mixing in reactor, be advantageously implemented magnetic field in reactor
Be uniformly distributed, magnetic field intensity is weak in solving magnetic biological coupling technology, and Distribution of Magnetic Field is uneven and Granular sludge formation slow
Slow problem.The magnetic-particle is provided simultaneously with preferable settling property, is difficult to be lost in the draining of reactor.
Composite magnetic particle prepared by the composite magnetic particle preparation method based on aluminium nickel cobalt that the present invention is provided, takes magnetic
Powder, adhesive are primary raw material, after being fabricated to magnetic-particle raw material ball, coat one layer of covering, it is to avoid rolled into a ball between raw material ball
The group of being polymerized to, and with certain antisepsis.Contain pore former in covering, the big specific surface area of particle surface is to useless after cladding
Pollutant in water has preferable suction-operated, beneficial to microorganism in its surface enrichment, accelerates the formation of granule sludge.The magnetic
Property particle carry out Neural stem cell steady in a long-term to microorganism in reactor, big specific surface area is more attached for microorganism provides
A little, as the kernel of granule sludge, accelerate the formation of granule sludge, improve contaminant removal efficiency.The base that the present invention is provided
Prepared in the composite magnetic particle preparation method of aluminium nickel cobalt, be not required to high-temperature firing, preparation method is simple and easy to apply, and energy saving is right
The requirement of process equipment is relatively low.
Specific embodiment
The present invention is described in detail with reference to embodiment.
Embodiment one：
Based on the composite magnetic particle of aluminium nickel cobalt, in percentage by weight, aluminium-nickel-cobalt magnetic powder is 78%, four oxygen to its component
Change three iron powders for 17%, adhesive 2%, silane KH550 account for 3%, grain diameter is 1mm, and extra-granular has clad, clad
Thickness is 0.1mm, and adhesive is the mixture of polyvinyl alcohol and sodium alginate, and mixed weight compares polyvinyl alcohol：Sodium alginate etc.
In 5：3.
Embodiment two：
Based on the composite magnetic particle of aluminium nickel cobalt, in percentage by weight, aluminium-nickel-cobalt magnetic powder is 88%, four oxygen to its component
Change three iron powders for 7%, adhesive is 1%, Aluminate 4%, grain diameter is 4mm, and extra-granular has clad, coating thickness
It is 0.5mm, described adhesive is the mixture of polyvinyl alcohol and sodium alginate, and mixed weight compares polyvinyl alcohol：Sodium alginate etc.
In 5：3.
Embodiment three：
A kind of preparation method of the composite magnetic particle based on aluminium nickel cobalt, comprises the following steps：
（1）Aluminium-nickel-cobalt magnetic powder is crossed into 400 mesh sieves, dry for standby at 100 DEG C is placed in baking oven, by ferroferric oxide powder mistake
400 mesh sieves, are placed in baking oven dry for standby at 100 DEG C；
（2）By step（1）Middle acquisition dry aluminium-nickel-cobalt magnetic powder, dry ferroferric oxide powder and silane KH550 according to
Following weight percentage, is mixed and stirred for uniform, standing 30min in absolute ethyl alcohol, in being dried in baking oven 100 DEG C, takes dry
Dry powder is standby；Described percentage by weight is：Dry aluminium-nickel-cobalt magnetic powder and account for 80%, dry ferroso-ferric oxide and account for 15%, silicon
Alkane KH550 accounts for 5%；
（3）By step（2）Dry powder mixture is obtained to be mixed according to following percentage by weight with adhesive：Dried powder
Mixture accounts for 84%, and binder solution accounts for 16%, after being well mixed, raw material ball, the life is squeezed under the interior mould for setting ball-type
Pellet particle diameter is 1mm；Described adhesive solution be 5% polyvinyl alcohol water solution and 3% sodium alginate aqueous solution by volume
1：1 mixed liquor；
（4）By step（3）It is dipped in covering, is coated under conditions of the k Hz of supersonic frequency 35, the W/m L of ultrasound intensity 0.6
10min, coating thickness is 0.3mm, is subsequently placed in baking oven at 60 DEG C and dries, and the covering by weight percentage, is done
Dry Kynoar (PVDF) is 18%, and dimethylacetylamide is 72%, and pore former Nacl is 10%.
The composite magnetic particle based on aluminium nickel cobalt prepared in above-described embodiment one is taken, is filled in reactor, addition
It is 20g/L, the magnetic field intensity of 0.78mT can be formed.Measured during magnetic-particle is added to activated sludge after 1d by counting method,
Total heterotrophic bacteria count reaches 8 × 105 Individual ml-1。
Example IV：
A kind of preparation method of the composite magnetic particle based on aluminium nickel cobalt, comprises the following steps：
（1）Aluminium-nickel-cobalt magnetic powder is crossed into 200 mesh sieves, dry for standby at 90 DEG C is placed in baking oven, by ferroferric oxide powder mistake
400 mesh sieves, are placed in baking oven dry for standby at 90 DEG C；
（2）By step（1）Middle acquisition dries aluminium-nickel-cobalt magnetic powder, dries ferroferric oxide powder and Aluminate according to following
Percentage by weight, is mixed and stirred for uniform, standing 30min in absolute ethyl alcohol, in being dried in baking oven 90 DEG C, takes dried powder
It is standby；Described percentage by weight is：Dry aluminium-nickel-cobalt magnetic powder and account for 90%, dry ferroso-ferric oxide and account for 6%, Aluminate is accounted for
4%；
（3）By step（2）Dry powder mixture is obtained to be mixed according to following percentage by weight with adhesive：Dried powder
Mixture accounts for 88%, and binder solution accounts for 12%, after being well mixed, raw material ball, the life is squeezed under the interior mould for setting ball-type
Pellet particle diameter is 2mm；Described adhesive solution be 5% polyvinyl alcohol water solution and 3% sodium alginate aqueous solution by volume
1：1 mixed liquor；
（4）By step（3）It is dipped in covering, is coated under conditions of the k Hz of supersonic frequency 35, the W/m L of ultrasound intensity 0.6
8min, coating thickness is 0.2mm, is subsequently placed in baking oven at 60 DEG C and dries, and the covering by weight percentage, is done
Dry Kynoar (PVDF) is 18%, and dimethylacetylamide is 72%, and pore former Nacl is 10%.
The composite magnetic particle prepared in above-described embodiment is taken, is filled in reactor, addition is 20g/L, being capable of shape
Into the magnetic field intensity of 0.8mT.Measured during magnetic-particle is added to activated sludge after 1d by counting method, total heterotrophic bacteria count reaches
8.5×105 Individual ml-1。
Claims (10)
1. a kind of composite magnetic particle based on aluminium nickel cobalt, it is characterised in that its component in percentage by weight, aluminium-nickel-cobalt magnetic
Property powder be 78%-88%, ferroferric oxide powder be 5%-17%, adhesive be 1%-2%, coupling agent 2%-4%, grain diameter is 1-
4mm。
2. the composite magnetic particle based on aluminium nickel cobalt according to claim 1, it is characterised in that extra-granular has cladding
Layer, coating thickness is not more than 0.5mm.
3. the composite magnetic particle based on aluminium nickel cobalt according to claim 2, it is characterised in that described adhesive is poly- second
The mixture of enol and sodium alginate, mixed weight compares polyvinyl alcohol：Sodium alginate is equal to 5：3.
4. the composite magnetic particle based on aluminium nickel cobalt according to claim 3, it is characterised in that the coupling agent is silane
KH550 or Aluminate.
5. a kind of preparation method of the composite magnetic particle based on aluminium nickel cobalt, it is characterised in that comprise the following steps:
（1）By aluminium-nickel-cobalt magnetic powder sieving mesh screen choosing, screen cloth specification be 200 mesh between 400 mesh, be placed in 80-100 in baking oven
Dry for standby at DEG C, by ferroferric oxide powder sieving mesh screen choosing, screen cloth specification be 200 mesh between 400 mesh, be placed in baking oven
Dry for standby at 80-100 DEG C；
（2）By step（1）Middle acquisition dries aluminium-nickel-cobalt magnetic powder, dries ferroferric oxide powder and coupling agent according to following
Percentage by weight, is mixed and stirred for uniform, standing 20-40min in absolute ethyl alcohol, in being dried at 80-100 DEG C in baking oven, takes
Dried powder is standby；Described percentage by weight is：Dry aluminium-nickel-cobalt magnetic powder and account for 80%-92%, dry ferroso-ferric oxide and account for
6%-17%, coupling agent accounts for 2%-5%；
（3）By step（2）Dry powder mixture is obtained to be mixed according to following percentage by weight with adhesive：Dried powder
Mixture accounts for 84%-90%, and binder solution accounts for 10%-16%, after being well mixed, in interior apertured footpath under the spherical module of 1-4mm
It is squeezed into raw material ball；
（4）By step（3）The raw material ball of acquisition is placed in baking oven at 60-80 DEG C and dries, and obtains finished product.
6. the preparation method of a kind of composite magnetic particle based on aluminium nickel cobalt according to claim 5, it is characterised in that will
Step（3）The raw material ball of acquisition, is dipped in covering, under conditions of the k Hz of supersonic frequency 35, the W/m L of ultrasound intensity 0.6
Cladding 5-15min, coating thickness is not more than 0.5mm, then carries out step（4）.
7. a kind of preparation method of composite magnetic particle based on aluminium nickel cobalt according to claim 6, it is characterised in that institute
State polyvinyl alcohol water solution and 3% sodium alginate aqueous solution by volume 1 that binder solution is 5%：1 mixed liquor.
8. a kind of preparation method of composite magnetic particle based on aluminium nickel cobalt according to claim 7, it is characterised in that institute
The coupling agent stated is silane KH550.
9. a kind of preparation method of composite magnetic particle based on aluminium nickel cobalt according to claim 7, it is characterised in that institute
The coupling agent stated is Aluminate.
10. the preparation method of a kind of composite magnetic particle based on aluminium nickel cobalt according to any one in claim 6-9,
Characterized in that, the covering, by weight percentage, it is 18% to dry Kynoar (PVDF), and dimethylacetylamide is
72%, pore former Nacl are 10%.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320899A (en) * | 2018-03-30 | 2018-07-24 | 赵紫彤 | A kind of chemical treatment method on magnetic powder surface |
| CN109545492A (en) * | 2018-10-25 | 2019-03-29 | 无锡斯贝尔磁性材料有限公司 | A kind of composition being used to prepare flexible magnetic sheet and preparation method |
| CN114541687A (en) * | 2020-11-26 | 2022-05-27 | 和也健康科技有限公司 | Healthy bamboo floor structure for house |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244884A (en) * | 2008-03-28 | 2008-08-20 | 北京科技大学 | Wastewater treatment method using magnetism biological carrier and magnetic separation technique |
| CN101597105A (en) * | 2009-06-11 | 2009-12-09 | 浙江省环境保护科学设计研究院 | A kind of preparation method who is used for the magnetic carrier of processing technique of sewage biological fluidized bed |
| CN104998623A (en) * | 2015-03-24 | 2015-10-28 | 浙江工商大学 | Composite magnetic nano-particle adsorbent and preparation method and application thereof |
| CN106219731A (en) * | 2016-09-27 | 2016-12-14 | 四川环能德美科技股份有限公司 | A kind of MBBR magnetic suspension biologic packing material and preparation method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3839136B2 (en) * | 1997-07-02 | 2006-11-01 | 独立行政法人科学技術振興機構 | Microorganism-immobilized magnetic carrier, production method thereof and wastewater treatment method |
| CN1546660B (en) * | 2003-12-01 | 2010-12-01 | 四川大学 | Microcapsule carrier with membrane hole for fixing microorganism and its preparation method |
| CN100361739C (en) * | 2004-10-13 | 2008-01-16 | 中国科学院大连化学物理研究所 | Method for molding and film coating powder of cupric iodide |
| CN102311262B (en) * | 2011-08-18 | 2013-04-17 | 河北工业大学 | Method for preparing MnZn ferrite with adding silane coupling agent |
| CN102827410A (en) * | 2012-08-17 | 2012-12-19 | 四川亿思通科技工程有限公司 | Bioaffinity hydrophilic magnetic suspended filler and preparation method thereof |
| CN102982961B (en) * | 2012-12-14 | 2015-08-05 | 北京科技大学 | Pressurize curing process is adopted to prepare the method for anisotropic bonded magnet |
| CN103545076A (en) * | 2013-10-30 | 2014-01-29 | 华南理工大学 | Method for preparing neodymium-iron-boron-ferrite laminated composite bonded magnet by in-situ polymerization bonding agents |
| CN104673777B (en) * | 2014-12-31 | 2017-09-01 | 浙江至美环境科技有限公司 | Microbe microsphere and its preparation method and application |
| CN105602408B (en) * | 2016-02-29 | 2017-12-29 | 东北大学 | A kind of Fe-B rare-earth permanent magnet fluorine-contained surface metal coating and preparation method thereof |
-
2017
- 2017-02-21 CN CN201911084456.XA patent/CN110776095B/en active Active
- 2017-02-21 CN CN201710092221.XA patent/CN106915822B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244884A (en) * | 2008-03-28 | 2008-08-20 | 北京科技大学 | Wastewater treatment method using magnetism biological carrier and magnetic separation technique |
| CN101597105A (en) * | 2009-06-11 | 2009-12-09 | 浙江省环境保护科学设计研究院 | A kind of preparation method who is used for the magnetic carrier of processing technique of sewage biological fluidized bed |
| CN104998623A (en) * | 2015-03-24 | 2015-10-28 | 浙江工商大学 | Composite magnetic nano-particle adsorbent and preparation method and application thereof |
| CN106219731A (en) * | 2016-09-27 | 2016-12-14 | 四川环能德美科技股份有限公司 | A kind of MBBR magnetic suspension biologic packing material and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320899A (en) * | 2018-03-30 | 2018-07-24 | 赵紫彤 | A kind of chemical treatment method on magnetic powder surface |
| CN109545492A (en) * | 2018-10-25 | 2019-03-29 | 无锡斯贝尔磁性材料有限公司 | A kind of composition being used to prepare flexible magnetic sheet and preparation method |
| CN114541687A (en) * | 2020-11-26 | 2022-05-27 | 和也健康科技有限公司 | Healthy bamboo floor structure for house |
| CN114541687B (en) * | 2020-11-26 | 2023-10-13 | 和也健康科技有限公司 | Bamboo floor structure for healthy house |
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| CN106915822B (en) | 2020-02-07 |
| CN110776095B (en) | 2021-10-26 |
| CN110776095A (en) | 2020-02-11 |
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