CN103351062B - Magnetic microbial carrier - Google Patents
Magnetic microbial carrier Download PDFInfo
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- CN103351062B CN103351062B CN201310284367.6A CN201310284367A CN103351062B CN 103351062 B CN103351062 B CN 103351062B CN 201310284367 A CN201310284367 A CN 201310284367A CN 103351062 B CN103351062 B CN 103351062B
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 57
- 230000000813 microbial effect Effects 0.000 title claims abstract description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 25
- 239000002131 composite material Substances 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920000642 polymer Polymers 0.000 claims abstract description 10
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 239000010703 silicon Substances 0.000 claims abstract description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 7
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000005728 strengthening Methods 0.000 claims description 20
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 19
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 18
- 239000006249 magnetic particle Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 10
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 9
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 9
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 9
- 229920002472 Starch Polymers 0.000 claims description 7
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 7
- 235000019698 starch Nutrition 0.000 claims description 7
- 239000008107 starch Substances 0.000 claims description 7
- 239000005995 Aluminium silicate Substances 0.000 claims description 4
- 235000012211 aluminium silicate Nutrition 0.000 claims description 4
- 239000010881 fly ash Substances 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 4
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000004132 cross linking Methods 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 12
- 239000006247 magnetic powder Substances 0.000 abstract description 9
- 239000000969 carrier Substances 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract 2
- 239000010883 coal ash Substances 0.000 abstract 1
- 229910052622 kaolinite Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 16
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 12
- 244000005700 microbiome Species 0.000 description 12
- 239000010802 sludge Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000006260 foam Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 239000002351 wastewater Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000009395 breeding Methods 0.000 description 5
- 230000001488 breeding effect Effects 0.000 description 5
- 229960001866 silicon dioxide Drugs 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000005426 magnetic field effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 235000019353 potassium silicate Nutrition 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- 239000003377 acid catalyst Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000012643 polycondensation polymerization Methods 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention provides a magnetic microbial carrier and a preparation method thereof. The magnetic microbial carrier is a macromoleclar polymer with a magnetic cross-linked structure, the macromoleclar polymer is polyvinyl formal, the polyvinyl formal is foamed and modified through a composite enhancing component and comprises silicon packaged magnetic powder, and the composite enhancing component is made of at least one of activated charcoal particles, siliceous marl, kaolinite, coal ash and hydrophilic silicon dioxide. According to the invention, the preparation process is simple, the operation is easy, and the prepared magnetic microbial carrier can solve the problems that a conventional porous carrier can not effectively fix microbes and diversified environments in carriers are hard to be formed.
Description
[technical field]
The present invention relates to a kind of magnetic microbial carrier.
[background technology]
Place using carrier as immobilized microorganism in biomembrance process, active sludge-bio membrane process, has higher biomagnification degree.Conventional bio-carrier has glass material, zeolite, haydite, gac, diatomite, various types of resins, plastics, fiber etc.The shortcomings such as but these carriers can only form microbial film on the surface of carrier, and biomass is relatively less, and microbial environment is relatively single, have insufficient strength simultaneously, wear no resistance, specific surface area is little, biologically stable is poor.
Magnetic field effect can improve the biological degradation efficiency of waste water greatly.The possible mechanism of magnetic field-intensification biological wastewater treatment is: the organic pollutant in reactor, under the effect of low-intensity magnetic field, gathers, adsorbs, is enriched to magnetic biological filling material surface by effects such as magnetic force key, magnetic force, Lorentz force and mangneto cavity effects through magnetic; Oxygen is paramagnetic substance, when aeration, can under the action of a magnetic field, be adsorbed near biologic packing material, increases the oxygen concn of filling surface, promotes the breeding of aerobe.Low-intensity magnetic field is also likely induced microbic activity and enzymic activity in addition.For bacterium and microorganism, during by magnetic field, magnetic field has inhibitions (dead microorganism does not have stronger activity) or excitation to them, can strengthen microbic activity, the effect of raising microbiological treatment waste water.But higher magnetic can suppress the metabolism breeding of microorganism, weakens the treatment effect to sewage.
[summary of the invention]
One of the technical problem to be solved in the present invention, is to provide a kind of magnetic microbial carrier, can solve existing porous support and effectively in fixation of microbe and carrier, be difficult to form the problems such as diversified environment.
The present invention realizes one of above-mentioned technical problem like this:
A kind of magnetic microbial carrier, described magnetic microbial carrier is the high molecular polymer that has the magnetic crosslinking structure of tool with a kind of, described high molecular polymer is polyvinyl formal, described polyvinyl formal is by composite strengthening component foaming modification, and also comprise bag silica magnetic particle, described composite strengthening component is at least one in micro activated carbon particle, diatomite, kaolin, flyash, hydrophilic silicon dioxide.
Further, prepare described magnetic microbial carrier raw material used and content thereof as follows:
PVAC polyvinylalcohol: 3.81～9.62wt.%;
Composite strengthening component: 2.25～17.33wt.%; Composite strengthening component particle diameter: 10-300 μ m;
40% formaldehyde: 3.1～8.21wt.%;
Ethylene glycol: 4.23～10.46wt.%;
Starch: 0.38～0.96wt.%;
Water: 40.30～90.30wt.%;
Bag silica magnetic particle: 1.67%～2.5%;
Described bag silica magnetic particle is silicon coated ferroferric oxide powder.
Further, the magnetic intensity that described magnetic microbial carrier has is 0.15～0.25emu/g.
Two of the technical problem to be solved in the present invention, be to provide a kind of preparation method of magnetic microbial carrier, preparation process is simple to operation, and the magnetic microbial carrier of preparing can solve existing porous support and effectively in fixation of microbe and carrier, be difficult to form the problems such as diversified environment.
The present invention realizes two of above-mentioned technical problem like this:
A preparation method for magnetic microbial carrier, described preparation method's step is as follows:
Step 10, starch, polyvinyl alcohol water solution are placed in to the water-bath of 90 DEG C, mechanical stirring is to dissolving, then adds ethylene glycol, sulfuric acid as acid catalyst;
Step 20, above-mentioned solution is stirred at 65 DEG C, slowly add formaldehyde, and add composite strengthening component, improve rapidly stirring velocity simultaneously, control reaction times 20min, then add bag silica magnetic particle, stir 10min, form foam solution;
Step 30, foam liquid is poured in mould, under 55-75 DEG C of condition, reacts 18-22h left and right, obtain by polyvinyl alcohol and formaldehyde condensation polymer and react the magnetic microbial carrier forming.
Further, prepare described magnetic microbial carrier raw material used and content thereof as follows:
PVAC polyvinylalcohol: 3.81～9.62wt.%;
Composite strengthening component: 2.25～17.33wt.%; Composite strengthening component particle diameter: 10-300 μ m;
40% formaldehyde: 3.1～8.21wt.%;
Ethylene glycol: 4.23～10.46wt.%;
Starch: 0.38～0.96wt.%;
Water: 40.30～90.30wt.%;
Bag silica magnetic particle: 1.67%～2.5%;
Described bag silica magnetic particle is silicon coated ferroferric oxide powder, and described composite strengthening component is at least one in micro activated carbon particle, diatomite, kaolin, flyash, hydrophilic silicon dioxide.
Further, the preparation method of described bag silica magnetic particle powder is as follows: ferroferric oxide powder disperseed under the condition of ultrasonic agitation, slowly adds the water glass of 1mol/L, and with between sulfuric acid adjusting pH=8-10, under the condition of 35-45 DEG C, react after 3-4h, dry to obtain bag silica magnetic particle.
Further, the magnetic intensity that described magnetic microbial carrier has is 0.15～0.25emu/g.Tool of the present invention has the following advantages:
The magnetic field effect that magnetic bio-carrier of the present invention has can stimulate microbial growth, the removal effect of strengthening pollutent, also can greatly improve the biological degradation efficiency of waste water, and magnetic powder plated surface last layer silicon-dioxide, do not affecting under the condition of magnetic powder magneticstrength, can greatly reduce the corrosion of acidic substance to magnetic powder.
Meanwhile, magnetic bio-carrier bioaffinity of the present invention is higher, and its surface free energy is 12～43mNm-1, is conducive to microorganism and solid suspended particle the growth of carrier is adhered to; Magnetic bio-carrier foam structure of the present invention is abundant in addition, and specific area is larger, and a large amount of microorganism that not only can grow, along with continuous growth, the enrichment of microorganism, is conducive to the breeding of variform microorganism, improves treatment efficiency.And because the existence of anaerobism, anoxic and aerobic various environment can promote nitration denitrification effect, promote the minimizing of mud simultaneously.
The concentration that adopts the activated sludge process of magnetic bio-carrier to remove the efficiency of COD, ammonia nitrogen and TN and bear poisonous substance is all better than conventional activated sludge process, and can obviously improve mud flco structure and settling property, overcome sludge bulking, can increase substantially the concentration of active sludge, increase the processing power of unit volume.
[brief description of the drawings]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the figure of magnetic microbial carrier of the present invention surface under electron microscope.
Fig. 2 is the schema that embodiment bis-fills the filter post processing breeding wastewater of carrier.
Fig. 3 is the filter post water outlet concentration map of embodiment phenodiazine element.
[embodiment]
Refer to shown in Fig. 1～3, embodiments of the invention are described in detail.
The present invention relates to a kind of magnetic microbial carrier, described magnetic microbial carrier is the high molecular polymer with the magnetic crosslinking structure of a kind of tool, described high molecular polymer is polyvinyl formal, described polyvinyl formal is by composite strengthening component foaming modification, and also comprise bag silica magnetic particle, described composite strengthening component is at least one in micro activated carbon particle, diatomite, kaolin, flyash, hydrophilic silicon dioxide.
Prepare described magnetic microbial carrier raw material used and content thereof as follows:
PVAC polyvinylalcohol: 3.81～9.62wt.%;
Composite strengthening component: 2.25～17.33wt.%; Composite strengthening component particle diameter: 10-300 μ m;
40% formaldehyde: 3.1～8.21wt.%;
Ethylene glycol: 4.23～10.46wt.%;
Starch: 0.38～0.96wt.%;
Water: 40.30～90.30wt.%;
Bag silica magnetic particle: 1.67%～2.5%;
Described bag silica magnetic particle is silicon coated ferroferric oxide powder.
The invention still further relates to the preparation method of above-mentioned a kind of magnetic microbial carrier, described preparation method's step is as follows:
Step 10, starch, polyvinyl alcohol water solution are placed in to the water-bath of 90 DEG C, mechanical stirring is to dissolving, then adds ethylene glycol, sulfuric acid as acid catalyst;
Step 20, above-mentioned solution is stirred at 55-75 DEG C, slowly add formaldehyde, and add composite strengthening component, improve rapidly stirring velocity simultaneously, control reaction times 20min, then add bag silica magnetic particle, stir 10min, form foam solution;
Step 30, foam liquid is poured in mould, under 55-75 DEG C of condition, reacts 18-22h left and right, obtain by polyvinyl alcohol and formaldehyde condensation polymer and react the magnetic microbial carrier forming.
The preparation method of described bag silica magnetic particle powder is as follows: ferroferric oxide powder is disperseed under the condition of ultrasonic agitation, slowly add the water glass of 1mol/L, and with between sulfuric acid adjusting pH=8-10, under the condition of 35-45 DEG C, react after 3-4h, dry and to obtain bag silica magnetic particle.
The magnetic intensity that described magnetic microbial carrier has is 0.15～0.25emu/g.
The reaction equation of above-mentioned preparation is as follows:
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment mono-
The synthetic of carrier is by polycondensation, and condensation polymerization step is as follows: by 20g starch, 200g PVA heating in water bath to 90 DEG C, stirring and dissolving is in 2000ml distilled water.Wait for the sulfuric acid (4.7M), the composite strengthening component that after component is dissolved completely, add 80ml.After bath temperature is down to 65 DEG C, stablize 10min, stir and add 80ml formaldehyde solution (40wt.%), and at 65 DEG C of reaction 20min, adding massfraction is 1.67%～2.5% bag silicon magnetic powder, stirs 10min.Expanding foam solution is poured in forming mould, and reacted moulding 20h in the blast dry oven of 65 DEG C.By gained carrier, through suitably cutting, (0.002 × 0.002m × m) get product, the state of described magnetic microbial carrier surface under electron microscope as shown in Figure 1.
The preparation method of bag silica magnetic particle powder is as follows: ferroferric oxide powder is disperseed under the condition of ultrasonic agitation, slowly add the water glass of 1mol/L, and regulate between pH=8-10 with the sulfuric acid of 3wt.%, under the condition of 40 DEG C, react after 3h, dry and to obtain bag silicon magnetic powder.
Embodiment bis-
The treatment effect of inspection to sewage:
Design filter post, probed into the treatment effect of carrier to marine culture wastewater.Filter post is that base diameter is 2 × 10
-3the polystyrene tube of m, the packing height of filtrate is 0.228m, the superelevation of 0.1m is arranged at top, as shown in Figure 2.Simulated sewage component, COD
mnconcentration is 108-165mgL
-1, TN concentration 13.9-14.8mgL
-1,nH
4 +-N concentration 4.7-5.1mgL
-1, NO3
--N concentration 9.3-9.5mgL
-1, salinity is 35gL
-1.20ml concentration is 5167mgL
-1active sludge add filter post as biofilm.Water outlet total nitrogen, ammonia nitrogen, nitre nitrogen, the nitrite nitrogen concentration of monitoring filter post, analyze the pollutant removal under different carriers impact.
The filter post of above-described embodiment nitrogen element goes out water concentration as shown in Figure 3, and as seen from Figure 3, under the stress conditions of high salinity, this carrier is better to the marine culture wastewater nitrogen-containing pollutant removal effect that contains salinity.The clearance of TN can reach and exceed 95%, and the clearance of ammonia nitrogen and nitre nitrogen also all exceedes 85%.
The magnetic field effect that magnetic bio-carrier of the present invention has can stimulate microbial growth, the removal effect of strengthening pollutent, also can greatly improve the biological degradation efficiency of waste water, and magnetic powder plated surface last layer silicon-dioxide, do not affecting under the condition of magnetic powder magneticstrength, can greatly reduce the corrosion of acidic substance to magnetic powder.
Meanwhile, magnetic bio-carrier bioaffinity of the present invention is higher, and its surface free energy is 12～43mNm-1, is conducive to microorganism and solid suspended particle the growth of carrier is adhered to; Magnetic bio-carrier foam structure of the present invention is abundant in addition, and specific area is larger, and a large amount of microorganism that not only can grow, along with continuous growth, the enrichment of microorganism, is conducive to the breeding of variform microorganism, improves treatment efficiency.And because the existence of anaerobism, anoxic and aerobic various environment can promote nitration denitrification effect, promote the minimizing of mud simultaneously.
The concentration that adopts the activated sludge process of magnetic bio-carrier to remove the efficiency of COD, ammonia nitrogen and TN and bear poisonous substance is all better than conventional activated sludge process, and can obviously improve mud flco structure and settling property, overcome sludge bulking, can increase substantially the concentration of active sludge, increase the processing power of unit volume.
Although more than described the specific embodiment of the present invention; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; instead of for the restriction to scope of the present invention; those of ordinary skill in the art are in equivalent modification and the variation done according to spirit of the present invention, all should be encompassed in the scope that claim of the present invention protects.
Claims (2)
1. a magnetic microbial carrier, it is characterized in that: the high molecular polymer of the magnetic crosslinking structure of described magnetic microbial carrier tool, described high molecular polymer is polyvinyl formal, described polyvinyl formal is by composite strengthening component foaming modification, and also comprise bag silica magnetic particle, described composite strengthening component is at least one in micro activated carbon particle, diatomite, kaolin, flyash, hydrophilic silicon dioxide;
Prepare described magnetic microbial carrier raw material used and content thereof as follows:
PVAC polyvinylalcohol: 3.81 ~ 9.62wt. %;
Composite strengthening component: 2.25 ~ 17.33 wt. %; Composite strengthening component particle diameter: 10-300 μ m;
The formaldehyde of 40 wt. %: 3.1 ~ 8.21 wt. %;
Ethylene glycol: 4.23 ~ 10.46 wt. %;
Starch: 0.38 ~ 0.96 wt. %;
Water: 40.30 ~ 90.30 wt. %;
Bag silica magnetic particle: 1.67 ~ 2.5 wt. %;
Described bag silica magnetic particle is silicon coated ferroferric oxide powder.
2. a kind of magnetic microbial carrier according to claim 1, is characterized in that: the magnetic intensity that described magnetic microbial carrier has is 0.15 ~ 0.25emu/g.
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| CN201310284367.6A CN103351062B (en) | 2013-07-08 | 2013-07-08 | Magnetic microbial carrier |
| CN201410355209.XA CN104176833B (en) | 2013-07-08 | 2013-07-08 | A kind of preparation method of magnetic microbial carrier |
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| CN104531661A (en) * | 2014-12-22 | 2015-04-22 | 四川环能德美科技股份有限公司 | Magnetic PVA carrier and preparation method thereof |
| CN105565506B (en) * | 2015-12-17 | 2018-03-30 | 苏州大学 | It is a kind of to load Biocomposite material of magnetic nanoparticle with core shell structure and its production and use |
| CN106189565B (en) * | 2016-07-22 | 2018-07-06 | 黄瑞 | One's own physical property coating and its application and one's own physical property floating stuffing and preparation method thereof |
| CN106219741A (en) * | 2016-08-19 | 2016-12-14 | 成都信息工程大学 | Magnetic active carbon base aerobic particle mud and cultural method thereof |
| CN106277607A (en) * | 2016-08-30 | 2017-01-04 | 王超 | A kind of water purification system containing membrane module and using method thereof |
| CN110372330A (en) * | 2019-07-31 | 2019-10-25 | 淮北市菲美得环保科技有限公司 | A kind of porous magnetic haydite and its preparation method and application based on municipal sludge |
| CN111689574B (en) * | 2020-06-23 | 2022-09-02 | 南京乐透思环保科技有限公司 | Preparation of magnetic biological carrier material |
| CN113479990A (en) * | 2021-05-13 | 2021-10-08 | 张翠 | Autotrophic microbial denitrification material |
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