CN104028246B - Filtering medium for removing tin in water and preparation method thereof - Google Patents
Filtering medium for removing tin in water and preparation method thereof Download PDFInfo
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- CN104028246B CN104028246B CN201410210070.XA CN201410210070A CN104028246B CN 104028246 B CN104028246 B CN 104028246B CN 201410210070 A CN201410210070 A CN 201410210070A CN 104028246 B CN104028246 B CN 104028246B
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 238000001914 filtration Methods 0.000 title abstract description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000004927 clay Substances 0.000 claims abstract description 39
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 24
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 19
- 239000002356 single layer Substances 0.000 claims abstract description 16
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 15
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 230000004048 modification Effects 0.000 claims description 8
- 238000012986 modification Methods 0.000 claims description 8
- 239000005995 Aluminium silicate Substances 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 7
- 235000012211 aluminium silicate Nutrition 0.000 claims 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 description 7
- 238000005245 sintering Methods 0.000 claims description 7
- 238000010792 warming Methods 0.000 claims description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 3
- 229910052624 sepiolite Inorganic materials 0.000 claims description 3
- 235000019355 sepiolite Nutrition 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 2
- 229910052719 titanium Inorganic materials 0.000 claims 2
- 239000010936 titanium Substances 0.000 claims 2
- 229920000642 polymer Polymers 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- 239000001099 ammonium carbonate Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- -1 polyethylene Polymers 0.000 description 6
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 5
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 5
- 239000003651 drinking water Substances 0.000 description 5
- 235000020188 drinking water Nutrition 0.000 description 5
- 239000004156 Azodicarbonamide Substances 0.000 description 4
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 4
- 235000019399 azodicarbonamide Nutrition 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002649 immunization Methods 0.000 description 2
- 230000003053 immunization Effects 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 210000004185 liver Anatomy 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 150000003606 tin compounds Chemical class 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 208000005374 Poisoning Diseases 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 231100000570 acute poisoning Toxicity 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 159000000013 aluminium salts Chemical class 0.000 description 1
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229910001593 boehmite Inorganic materials 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 231100000739 chronic poisoning Toxicity 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001134 stannide Inorganic materials 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Abstract
The invention provides a filtering medium for removing tin in water and a preparation method thereof. Adopted ultrahigh-molecular-weight polyethylene, titanium dioxide, single-layer carbon nanotubes and modified clay all have quite strong adsorption effect on tin, so that under the collaborative addition action of the raw materials, a filter core prepared by utilizing the filtering medium provided by the invention can effectively remove tin in to-be-treated water. Experimental results show that the filter core provided by the invention has higher removal rate on tin, and is suitable for needs of family terminal application water treatment.
Description
Technical field
The present invention relates to water-treatment technology field, more particularly, to a kind of filtration for removing stannum in eliminating water is situated between
Matter and preparation method thereof.
Background technology
Industry and developing rapidly of agricultural lead to water resource to be seriously damaged, and industrial wastewater discharge is to river
In river, lake, pesticide, agrochemical in a large number using and sanitary wastewater, industrial wastewater row wantonly
Put, these all cause the water degradation of subsoil water and surface water, leading to produce in water much has to human body
The material of evil, water pollution increasingly becomes the Tough questions of impact people's life.
Stannum is Heavy Metallic Elements, and its compound excess intake can cause poisoning.The chemical combination owner of stannum
Be divided into inorganic stannide and organic tin compound, wherein organic tin compound mostly have medium to highly poison
Property, acute poisoning, chronic poisoning and mucocutaneous lesions etc. can be caused.Organo-tin compound typically may be used
By respiratory tract, digestive tract and mucocutaneous entrance body.After organotin enters in vivo, main distribution
To blood, liver, kidney, spleen, the heart, brain and the distribution of bone chromium flesh are less.After organotin enters in human body
A series of liver and gall of body, nervous system damage mainly can be caused.Some organo-tin compounds also can
Cellular immunization, humoral immunization and non-specific host defense defect etc. can be caused.
At present, except the method for stannum is a lot, for example, chemical oxidization method, electrolysis and bioanalysises etc..But
Be, method of the prior art remove the stannum in drinking water effect undesirable it is therefore desirable to provide one
Plant the filter medium to the stannum in drinking water with higher clearance.
Content of the invention
Present invention solves the technical problem that be to provide a kind of for go in eliminating water the filter medium of stannum and its
Preparation method, is used for stannum in eliminating water, and clearance is higher.
In view of this, the invention provides a kind of preparation method for removing the filter medium of stannum in eliminating water,
Comprise the following steps：
Mixture is placed in molding device and is molded, then sinter 80～120 minutes at 160～200 DEG C,
Filter medium is obtained, described mixture is made up of following components after cooling, the demoulding：400～500 weight
Part ultra-high molecular weight polyethylene, the titanium dioxide of 100～200 weight portions, 100～200 weight portions
Single-layer carbon nano-tube, the modified clay of 200～300 weight portions, the weight of described ultra-high molecular weight polyethylene
Average molecular weight is 6,000,000～7,000,000；
Described modification clay is prepared as follows：Clay is mixed with alkali compoundss,
At 200～300 DEG C, reaction obtained mixture after 20～25 hours；Described mixture is mixed with gas generation agent,
Control ph is 6～11；It is warming up to 100～180 DEG C, insulation obtained modified clay after 1～10 hour.
Preferably, sintering temperature is 175 DEG C, and sintering time is 95 minutes.
Preferably, the particle diameter of described titanium dioxide is 5～500nm.
Preferably, the particle diameter of described titanium dioxide is 100～150nm.
Preferably, described CNT is processed in accordance with the following methods：
CNT is carried out at 1400～1450 DEG C high-temperature process.
Preferably, described clay is one of Kaolin, bentonite, montmorillonite and meerschaum or several
Kind.
Preferably, described alkali compoundss are sodium carbonate or sodium bicarbonate.
Preferably, described ultra-high molecular weight polyethylene is 450 weight portions；Titanium dioxide is 150 weight
Part；Single-layer carbon nano-tube is 150 weight portions, and modified clay is 250 weight portions.
Accordingly, the present invention also provide a kind of by above-mentioned preparation method prepare for removing stannum in eliminating water
Filter medium.
Accordingly, the present invention also provide a kind of be made up of above-mentioned filter medium for removing stannum in eliminating water
Filter element.
The invention provides a kind of preparation method for removing the filter medium of stannum in eliminating water, walk including following
Suddenly：Mixture is placed in molding device and is molded, sintering, cooling, obtain filter medium after the demoulding, institute
State mixture to be made up of following components：Ultra-high molecular weight polyethylene, titanium dioxide, single-layer carbon nano-tube
With modified clay, described modification clay be prepared as follows：Clay is mixed with alkali compoundss,
At 200～300 DEG C, reaction obtained mixture after 20～25 hours；Described mixture and gas generation agent are mixed
Close, control ph is 6～11；It is warming up to 100～180 DEG C, insulation obtains modified viscous after 1～10 hour
Soil.
The ultra-high molecular weight polyethylene that adopted due to the present invention, titanium dioxide, single-layer carbon nano-tube and change
Property clay all has very strong adsorption to stannum, therefore, under the collaborative adduction of above-mentioned raw materials,
The stannum in accessing pending water can effectively be removed using the filter element that the filter medium that the present invention provides prepares.
Test result indicate that, the filter element that the present invention provides is higher to the clearance of stannum it is adaptable to home terminal should
Needs with water process.
Specific embodiment
For a further understanding of the present invention, with reference to embodiment, the preferred embodiment of the invention is carried out
Describe but it is to be understood that these descriptions are simply to further illustrate the features and advantages of the present invention,
Rather than limiting to the claimed invention.
The embodiment of the invention discloses a kind of preparation method for removing the filter medium of stannum in eliminating water, including
Following steps：Mixture is placed in molding device and is molded, then sinter at 160～200 DEG C
80～120 minutes, obtain filter medium after cooling, the demoulding, described mixture is made up of following components：
The ultra-high molecular weight polyethylene of 400～500 weight portions, the titanium dioxide of 100～200 weight portions,
The single-layer carbon nano-tube of 100～200 weight portions, the modified clay of 200～300 weight portions, described superelevation
The weight average molecular weight of molecular weight polyethylene is 6,000,000～7,000,000；Described modification clay is as follows
Preparation：Clay is mixed with alkali compoundss, reaction at 200～300 DEG C obtained after 20～25 hours
Mixture；Described mixture is mixed with gas generation agent, control ph is 6～11；It is warming up to
100～180 DEG C, insulation obtained modified clay after 1～10 hour.
In the present invention, the density of described ultra-high molecular weight polyethylene (UHMW-PE) is preferably
0.936～0.964g/cm3；Its heat distortion temperature is preferably 85 DEG C；Fusing point is preferably 130～136 DEG C, more
It is preferably 132～135 DEG C, additionally, described ultra-high molecular weight polyethylene (UHMW-PE) wearability
Well.The weight average molecular weight of the ultra-high molecular weight polyethylene that the present invention adopts is preferably 6,300,000～6,700,000,
More preferably 6,600,000.The ultra-high molecular weight polyethylene that the present invention adopts is preferably powder, its particle diameter
It is preferably 100～200 μm, more preferably 120～160 μm, most preferably 120～150 μm.The present invention
Using ultra-high molecular weight polyethylene play bonding and formed filter medium skeleton, vestibule effect.
Compared with low molecular weight polyethylene, ultra-high molecular weight polyethylene has powerful electrostatic adsorption,
Trickle, superfine granule can be adsorbed.The ultra-high molecular weight polyethylene that the present invention adopts can adopt
The ultra-high molecular weight polyethylene of domestic production manufacturer production, such as Beijing Orient petrochemical industry company limited
Second auxiliary factory and the ultra-high molecular weight polyethylene of Nanjing Guo Chen Chemical Co., Ltd. manufacturer production.
In the present invention, the particle diameter of described titanium dioxide is preferably 5～500nm, more preferably
50～300nm, most preferably 100～150nm.The titanium dioxide that the present invention adopts is preferably by sulphuric acid legal system
Standby, described titanium dioxide can be anatase or rutile form exists.
The pretreatment preferably through surfactant for the single-layer carbon nano-tube that the present invention adopts, for described table
Face activator, there is no particular restriction for the present invention, can be lived using surface well known to those skilled in the art
Agent.There is the effect of stannum in absorption water through the single-layer carbon nano-tube of surface activation process, further
Eliminate the stannum in water.Additionally, CNT is further preferably carried out high-temperature process by the present invention, carbon is made to receive
The borehole enlargement of mitron, thus preferably adsorb the stannum in water.Temperature due to high-temperature process is received with carbon
The aperture of mitron is related, and temperature is too high will be excessive for the aperture making CNT, therefore, at described high temperature
The temperature of reason is preferably 1200～1800 DEG C, more preferably 1400～1450 DEG C.
The present invention using modified clay as preparing raw material, preferably make as follows by described modification clay
Standby：Clay is mixed with alkali compoundss, reaction at 250～280 DEG C was mixed after 22～25 hours
Compound；Described mixture is mixed with gas generation agent, control ph is 6～11；It is warming up to
100～180 DEG C, insulation obtained modified clay after 1～10 hour.Wherein, the regulation of described pH value is excellent
Choosing adopts acid compound or alkaline chemical.Described clay be Kaolin, bentonite, montmorillonite and
One or more of meerschaum.The alkali compoundss adopting during the modified clay of preparation are preferably
Sodium carbonate or sodium bicarbonate；Described acid compound is preferably acetic acid.
The present invention, by being modified to clay, has obtained modified clay.Described modification clay achieves
Aluminium salt therein is converted into boehmite, defines high-specific surface area, the dealuminzation of macropore volume glues
The modified clay that soil is combined closely.On the one hand, the modified clay of present invention preparation has high-specific surface area,
The stannum in water can be adsorbed well；On the other hand, the modified clay of preparation and superhigh molecular weight polyethylene
Alkene, titanium dioxide, single-layer carbon nano-tube form synergism, improve the suction to the stannum in water further
Attached rate.
During the modified clay of preparation, described gas generation agent selects azodicarbonamide, food stage carbonic acid
At least one in hydrogen ammonium, oxalic acid.Preferably, gas generation agent is azodicarbonamide or food stage carbon
Sour hydrogen ammonium.Wherein, food grade ammonium bicarbonate is also referred to as AMMONIUM BICARBONATE FOOD GRADE, with technical grade ammonium hydrogen carbonate
Distinguish.Although technical grade ammonium hydrogen carbonate also plays the role of hair engaging aperture, it may contain to health
Harmful impurity, should not be used as the raw materials for production of Drinking Water Filtration medium.Gas generation agent is that a class is easily decomposed
Produce a large amount of gases and cause the material of hair engaging aperture effect, wherein azo compound, sodium bicarbonate, carbon
Sour hydrogen ammonium, ammonium carbonate, sulphonyl nitrile compounds, oxalic acid etc. are that it typically represents.Wherein, preferably
Using food grade ammonium bicarbonate.
Preferably, described ultra-high molecular weight polyethylene is 450 weight portions；Titanium dioxide is
150 weight portions；Single-layer carbon nano-tube is 150 weight portions, and modified clay is 250 weight portions.In system
During standby, described sintering temperature is preferably 170～190 DEG C, more preferably 175 DEG C；Sintering time
It is preferably 95 minutes.
For above-mentioned blend step it is believed that any will not significantly change diameter of particle and particle size distribution
Low shear mixing gas or agitator be all applicable, for example, drum-type mixture, screw mixing
Device etc..
Accordingly, the present invention also provides a kind of filter medium being prepared by above-mentioned preparation method.With
When, a kind of filter element for removing stannum in eliminating water being made up of above-mentioned filter medium is also provided.The present invention carries
For filter element structure be structure well known to those skilled in the art, to this present invention, there is no particular restriction.
For a further understanding of the present invention, enter with reference to the technical scheme that embodiment provides to the present invention
Row describes in detail, and protection scope of the present invention is not limited by the following examples.
Embodiment 1
By 100 grams of Kaolin (production of Chinese kaolin industrial group) and bicarbonate that concentration is 10%
Sodium mix homogeneously, processes 20 hours at 200 DEG C, obtains mixed material；To in described mixed material
Add azodicarbonamide, adjusting pH value is 7～8, then heats to 180 DEG C, is incubated 5 hours,
Material filtering, washing, obtain modified clay after being dried.
The single-layer carbon nano-tube of 200g is warming up at 1450 DEG C and is incubated 5 hours.
Weigh the ultra-high molecular weight polyethylene (UHMW-PE) that 450g molecular weight is 6,500,000,
120g particle diameter is the titanium dioxide of 100nm, the single-layer carbon nano-tube after the above-mentioned process of 200g and
The modified clay of the above-mentioned preparation of 200g is put into after stirring 80 minutes in agitator, removes and is partially loaded pipe
In shape mould, compacting, sinter 95 minutes at 175 DEG C, the demoulding after cooling, obtain filter element.
Embodiment 2
By 100 grams of Kaolin (production of Chinese kaolin industrial group) and bicarbonate that concentration is 10%
Sodium mix homogeneously, processes 20 hours at 200 DEG C, obtains mixed material；To in described mixed material
Add azodicarbonamide, adjusting pH value is 7～8, then heats to 180 DEG C, is incubated 5 hours,
Material filtering, washing, obtain modified clay after being dried.
The single-layer carbon nano-tube of 200g is warming up at 1450 DEG C and is incubated 5 hours.
Weigh the ultra-high molecular weight polyethylene (UHMW-PE) that 500g molecular weight is 6,500,000,
120g particle diameter is the titanium dioxide of 100nm, the single-layer carbon nano-tube after the above-mentioned process of 150g and
The modified clay of the above-mentioned preparation of 220g is put into after stirring 80 minutes in agitator, removes and is partially loaded pipe
In shape mould, compacting, sinter 95 minutes at 175 DEG C, the demoulding after cooling, obtain filter element.
Embodiment 3
The filter element of Example 1～2 preparation, liner two-layer nonwoven, outsourcing two-layer nonwoven, then
Outer layer wraps polypropylene porous web, filter element two ends bonding connects end cap, is then placed into stainless steel case
Internal process drinking water.After testing, this filter element has good removal effect to stannum.Table 1 is employing
The content to stannum before and after drinking water treatment for the filter element that the embodiment of the present invention 1～2 provides.
Table 1 is using the content of the stannum in water after the filter element before processing of embodiment 1～2 preparation
From table 1 it follows that the filter element that the present invention provides can effectively remove stannum in eliminating water it is adaptable to
The needs of home terminal application water process.
The explanation of above example is only intended to help and understands the method for the present invention and its core concept.Should
When pointing out, for those skilled in the art, before without departing from the principle of the invention
Put, the present invention can also be carried out with some improvement and modify, these improve and modification also falls into this
In bright scope of the claims.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or makes
Use the present invention.Multiple modifications to these embodiments will be aobvious for those skilled in the art
And be clear to, generic principles defined herein can be without departing from the spirit or scope of the present invention
In the case of, realize in other embodiments.Therefore, the present invention be not intended to be limited to shown in this article
These embodiments, and it is to fit to consistent with principles disclosed herein and features of novelty the widest
Scope.
Claims (10)
1. a kind of preparation method for removing the filter medium of stannum in eliminating water is it is characterised in that wrap
Include following steps：
Mixture is placed in molding device and is molded, then at 160～200 DEG C, sinter 80～120 points
Clock, obtains filter medium after cooling, the demoulding, described mixture is made up of following components：400～500
The ultra-high molecular weight polyethylene of weight portion, the titanium dioxide of 100～200 weight portions, 100～200
The single-layer carbon nano-tube of weight portion, the modified clay of 200～300 weight portions, described supra polymer
The weight average molecular weight of weight northylen is 6,000,000～7,000,000；
Described modification clay is prepared as follows：Clay is mixed with alkali compoundss,
At 200～300 DEG C, reaction obtained mixture after 20～25 hours；By described mixture and gas generation agent
Mixing, control ph is 6～11；It is warming up to 100～180 DEG C, insulation obtained after 1～10 hour
Modified clay.
2. preparation method according to claim 1 is it is characterised in that sintering temperature is
175 DEG C, sintering time is 95 minutes.
3. preparation method according to claim 1 is it is characterised in that described titanium dioxide
The particle diameter of titanium is 5～500nm.
4. preparation method according to claim 3 is it is characterised in that described titanium dioxide
The particle diameter of titanium is 100～150nm.
5. preparation method according to claim 1 is it is characterised in that described carbon nanometer
Pipe is processed in accordance with the following methods：
CNT is carried out at 1400～1450 DEG C high-temperature process.
6. preparation method according to claim 1 is it is characterised in that described clay is
One or more of Kaolin, bentonite, montmorillonite and meerschaum.
7. preparation method according to claim 1 is it is characterised in that described alkalization
Compound is sodium carbonate or sodium bicarbonate.
8. preparation method according to claim 1 is it is characterised in that described superelevation is divided
Sub- weight northylen is 450 weight portions；Titanium dioxide is 150 weight portions；Single-layer carbon nano-tube is
150 weight portions, modified clay is 250 weight portions.
9. what prepared by the preparation method described in a kind of any one by claim 1～8 is used for
The filter medium of stannum in eliminating water.
10. the filter element for removing stannum in eliminating water being made up of the filter medium described in claim 9.
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| JP2003334544A (en) * | 2002-05-16 | 2003-11-25 | Kuraray Chem Corp | Active carbon molding, cartridge, and water purifier |
| CN101596447A (en) * | 2008-06-03 | 2009-12-09 | 周奇迪 | Be used for filter medium of removing the water N-Nitrosodimethylamine and preparation method thereof |
| CN101844008A (en) * | 2009-03-27 | 2010-09-29 | 周奇迪 | Filter medium and preparation method thereof, filter element and water purification device |
| CN101898120A (en) * | 2009-05-27 | 2010-12-01 | 周奇迪 | Filtering medium for removing organic tin in drinking water and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003334544A (en) * | 2002-05-16 | 2003-11-25 | Kuraray Chem Corp | Active carbon molding, cartridge, and water purifier |
| CN101596447A (en) * | 2008-06-03 | 2009-12-09 | 周奇迪 | Be used for filter medium of removing the water N-Nitrosodimethylamine and preparation method thereof |
| CN101844008A (en) * | 2009-03-27 | 2010-09-29 | 周奇迪 | Filter medium and preparation method thereof, filter element and water purification device |
| CN101898120A (en) * | 2009-05-27 | 2010-12-01 | 周奇迪 | Filtering medium for removing organic tin in drinking water and preparation method thereof |
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