CN105289550A - Filtering medium for removing antibiotic-sulfamethoxazole in drinking water, filtering element and preparation method of filtering medium for removing antibiotic-sulfamethoxazole in drinking water - Google Patents
Filtering medium for removing antibiotic-sulfamethoxazole in drinking water, filtering element and preparation method of filtering medium for removing antibiotic-sulfamethoxazole in drinking water Download PDFInfo
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Abstract
The invention provides a preparation method of a filtering medium for removing an antibiotic-sulfamethoxazole in drinking water. The method comprises the following steps: (a) mixing ultra high molecular weight polyethylene powder, activated carbon powder, micron molecular sieve powder, nanometer molecular sieve powder and a foaming hole agent to obtain a mixture, wherein the weight ratio of the ultra high molecular weight polyethylene powder to the activated carbon powder to the micron molecular sieve powder to the nanometer molecular sieve powder to the foaming hole agent is (200-300) to (100-200) to (50-100) to (50-100) to (50-100); and (b) putting the mixture obtained in (a) into a mold, pressing, sintering, and cooling, wherein the pressing pressure is 0.4-1MPa, the sintering temperature is 200-240 DEG C, the sintering time is 90-150min, and the cooling temperature is 40-60DEG C. In the invention, the filtering medium prepared by a synergistic effect of the raw materials and matching with special sintering temperature, pressure and cooling temperature has high removal rate for the antibiotic-sulfamethoxazole in the drinking water. The method is simple, and proved by tests, the filtering medium has a removal rate up to 98.0% and above for the antibiotic-sulfamethoxazole in the drinking water.
Description
Technical field
The present invention relates to and a kind ofly remove filter medium of antibiotic sulfamethoxazole in drinking water and preparation method thereof, the filter core be made up of this filter medium, water purifying plant and drinking Fountains.
Background technology
Institute of Micro-biology of the Chinese Academy of Sciences and Shenzhen graduate research institute of Hua Da fund find: the ratio of human body intestinal canal microorganism drug resistant gene is the highest, maximum containing 70 drug resistant gene relative populations in Chinese's enteron aisle.Spaniard's average out to 49, Dane 45 is minimum.In fact, Denmark is a country strictly controlling antibiotic usage, the prescription medicine of strict restriction doctor, simultaneously also from 1998, forbid antibiotic animal being used to all non-therapeutics, then release again stricter regulation, control people and antibiotic is used to animal.Equally, also there is strict control in the U.S. for antibiotic.
But it is commonplace in the phenomenon of Chinese abuse of antibiotics.The World Health Organization data display, the antibiotic utilization rate of Chinese inpatient up to 80%, the world level far above 30%.More seriously, the antibiotic usage almost no supervision in livestock and poultry farm, fishing ground, drug-resistant bacteria can pass to the mankind by animal easily.
In China river and lake, in 20 kinds of PPcPs, antibiotic occupies top 10.2007, United Nations Environment Programme warned in assessment report, and antibiotic has become a kind of newborn pollutant, had to pass through the ecological risk paying attention to causing.
Sulfamethoxazole (SMX) is commonly called as radonil, and chemical name is N-4-aminopropan sulfonamide, is conventional broad-spectrum antibiotic.The traditional removal effect of water treatment technology to SMX in waterworks is not obvious; Although high-level oxidation technology, photocatalysis technology removal effect are better, complex operation; RO film removal effect is good, but waste water takes electricity, and cost is high, and the concentrate of discharge not easily processes, and easily causes secondary pollution.
Summary of the invention
In view of this, the technical problem that the present invention solves is to provide a kind of filter medium and preparation method thereof, and the clearance of this filter medium to the sulfamethoxazole in drinking water is high, and method is simple.Additionally provide the filter core, purifier and the water dispenser that are made up of this filter medium.
The invention provides a kind of preparation method removing the filter medium of sulfamethoxazole in drinking water, it is characterized in that, comprise the following steps:
A) ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent are mixed, obtain mixture, the weight ratio of described ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent is 200 ~ 300:100 ~ 200:50 ~ 100:50 ~ 100:50 ~ 100;
B) mixture of step a) gained is suppressed in a mold, sinters, cooled;
Described pressing pressure is 0.4MPa ~ 1Mpa; Described sintering temperature is 200 DEG C ~ 240 DEG C; Described sintering time is 90 ~ 150min; Described chilling temperature is 40 DEG C ~ 60 DEG C.
Preferably, the aperture of described microsized zeolite is 1 ~ 5 μm; The aperture of described nano molecular sieve is 0.5 ~ 5nm.
Preferably, modified alta-mud powder is also comprised.
Preferably, described modified alta-mud powder is the composite modified bentonite of softex kw and ethylenediamine.
Preferably, expansion chlorite is also comprised.
Preferably, the weight ratio of described expansion chlorite and described ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent is 50 ~ 90:200 ~ 300:100 ~ 200:50 ~ 100:50 ~ 100:50 ~ 100.
The filter medium for removing sulfamethoxazole in drinking water that the preparation method that the invention provides according to the claims obtains.
The invention provides a kind of filter core, be made up of the filter medium described in the claims.
The invention provides a kind of purifier, comprise the filter medium described in the claims or the filter core described in the claims.
The invention provides a kind of water dispenser, comprise the purifier described in the claims.
Compared with prior art, the invention provides a kind of preparation method removing the filter medium of sulfamethoxazole in drinking water, comprise the following steps: a) ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent are mixed, obtain mixture, the weight ratio of described ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent is 200 ~ 300:100 ~ 200:50 ~ 100:50 ~ 100:50 ~ 100; B) mixture of step a) gained is suppressed in a mold, sinters, cooled; Described pressing pressure is 0.4MPa ~ 1Mpa; Described sintering temperature is 200 DEG C ~ 240 DEG C; Described sintering time is 90 ~ 150min; Described chilling temperature is 40 ~ 60 DEG C.The present invention is under above-mentioned raw materials synergy, coordinate specific sintering temperature, pressure and chilling temperature, the filter medium prepared is high to the clearance of sulfamethoxazole in water, and method is simple, be applicable to the drinking water polluted by it, exempt the injury that sulfamethoxazole produces human body, easy to use, cost is low, in addition owing to using filter core, not powder, so without the need to subsequent treatment, be applicable to the process of home terminal drinking-water.After testing this filter medium to the clearance of sulfamethoxazole in drinking water more than 98.0%.
Detailed description of the invention
The invention provides a kind of preparation method removing the filter medium of sulfamethoxazole in drinking water, it is characterized in that, comprise the following steps:
A) ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent are mixed, obtain mixture, the weight ratio of described ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent is 200 ~ 300:100 ~ 200:50 ~ 100:50 ~ 100:50 ~ 100;
B) mixture of step a) gained is suppressed in a mold, sinters, cooled;
Described pressing pressure is 0.4MPa ~ 1Mpa; Described sintering temperature is 200 DEG C ~ 240 DEG C; Described sintering time is 90 ~ 150min; Described chilling temperature is 40 ~ 60 DEG C.
First ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent mix by the present invention, obtain mixture, the weight ratio of described ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent is 200 ~ 300:100 ~ 200:50 ~ 100:50 ~ 100:50 ~ 100; Be preferably 210 ~ 290:110 ~ 190:60 ~ 90:60 ~ 90:60 ~ 90; Be more preferably 220 ~ 280:120 ~ 180:65 ~ 85:65 ~ 85:65 ~ 85.
In the present invention, the weight average molecular weight of described ultra-high molecular weight polyethylene is preferably 1,000,000 ~ 7,000,000, is more preferably 2,000,000 ~ 6,000,000, most preferably is 2,500,000 ~ 4,000,000.Ultra-high molecular weight polyethylene can obtain from domestic production producer, as Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be can provide the product of M-I type (molecular weight is 150 ± 500,000), M-II type (molecular weight is 250 ± 500,000), M-III type (molecular weight is 350 ± 500,000), M-IV type (molecular weight is for being greater than 4,000,000) equal-specification.An effect of ultra-high molecular weight polyethylene is bonding and the effect forming filter medium skeleton, because the molecular weight of ultra-high molecular weight polyethylene is large, melt viscosity is very high, can not flow after melting, so utilize ultra-high molecular weight polyethylene to pass through compacting, sinter the filter medium obtained, easily form micropore, the effect of sulfamethoxazole in adsorbed water can be played.The present invention preferably adopts particle diameter to be the ultra-high molecular weight polyethylene of 74 ~ 89 μm.
In the present invention, active carbon is a kind of porous material, has cellular pore structure, larger specific area, special surface functional group, stable process based prediction model, is excellent adsorbent, catalyst or catalyst carrier.According to the active carbon etc. that the different activities charcoal of raw material sources is preferably divided into wood activated charcoal, mineral raw material active carbon and other raw materials to make.Wherein, described wood activated charcoal preferably includes cocoanut active charcoal, apricot shell active carbon, wooden burgy; It is the active carbon that raw material is made that described mineral raw material active carbon preferably includes various coal and oil and elaboration products thereof; The active carbon that the active carbon that other raw materials are made preferably includes scrap rubber, waste plastics is made.The present invention preferably uses with the active carbon of coconut husk material for source, and its intensity is higher, absorption property good, is more preferably with the medical activated carbon of coconut husk material for source.In the present invention, the specific area of described active carbon is preferably not less than 500m
2/ g, is more preferably not less than 1000m
2/ g.Active carbon can organic matter, especially medical activated carbon efficiently in adsorbed water, as the product by excessively national relevant drug surveilance standard, impurity content is low, and surface area is larger, adsorption effect is also better, and filter medium is directly used in the process of drinking water to select medical activated carbon to ensure.
The present invention preferably adopts particle diameter to be the medical activated carbon of 38 ~ 250 μm.
Molecular sieve is a kind of aluminosilicate of crystal type, has structure and the feature of crystal, and surface is solid skeletal, and the effect of binding molecule can be played in internal cavity.Have duct to be connected to each other between hole, molecule has duct to pass through.Molecular sieve powder is by the physical absorption to the Van der Waals force of material, and there are very strong polarity and Coulomb field in its geode inside, goes out strong adsorption capacity to polar molecule and unsaturated molecule displays.And the pore-size distribution of molecular sieve is very homogeneous, it is inner that the material only having molecular diameter to be less than hole diameter just may enter molecular sieve bug hole.
In the present invention, the particle diameter of described microsized zeolite is micron level, has larger specific area and higher surface energy, and absorption property is stronger than conventional molecular sieve.Nano molecular sieve is also superfine molecular sieves, and usual particle diameter is less than hundreds of nanometer, and particle diameter is much smaller than conventional molecular sieve, and duct is short, and molecule diffusion velocity is wherein fast, and intracrystalline diffusion resistance is little, and carbon accumulation resisting ability is strong; More than conventional molecular sieve at the structure cell number of outer exposed, cause nano molecular sieve to have and more pass in and out aperture; Have larger external surface area, pore volume and porosity all comparatively large, surface energy is high, and the character of outer surface is active, and high adsorption capacity, has larger superiority; And the heat endurance of microsized zeolite is stronger than nano molecular sieve, therefore microsized zeolite and nano molecular sieve are combined by the present invention has good adsorption effect as filter medium to the sulfamethoxazole in water.
In the present invention, the aperture of described microsized zeolite is preferably 1 ~ 5 μm, is more preferably 2 ~ 4 μm; The aperture of described nano molecular sieve is preferably 0.5 ~ 5nm, is more preferably 1 ~ 4nm.
Gas generation agent of the present invention is that a class is easily decomposed a large amount of gas of generation and causes the material of hair engaging aperture effect, and wherein azo compound, sodium acid carbonate, carbonic hydroammonium, ammonium carbonate, sulphonyl nitrile compounds, oxalic acid etc. are that it typically represents.As preferably, gas generation agent is at least one in Celogen Az, food grade ammonium bicarbonate, oxalic acid.Wherein, food grade ammonium bicarbonate also claims AMMONIUM BICARBONATE FOOD GRADE, distinguishes with technical grade carbonic hydroammonium.Although technical grade carbonic hydroammonium also has the effect of hair engaging aperture, it may contain the impurity of insalubrity, should not be used as the raw materials for production of Drinking Water Filtration medium.
After ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent sintering, the netted knot of formation and charge property enhance the suction-operated to sulfamethoxazole.Cooperatively interacting and mutually acting synergistically by these five kinds of raw materials, makes the clearance for the sulfamethoxazole in drinking water high, effective jointly.
In the present invention, preferably also comprise modified alta-mud powder, described modified alta-mud powder is preferably softex kw and the composite modified bentonite of ethylenediamine.
In the present invention, described method for preparation of modified bentonite is preferably:
Dry, the rear bentonite original soil crossing 200 mesh sieves of grinding are poured in the cationic surfactant solution containing softex kw, after stirring, adds ethylenediamine solution.Deionized water is spent, until use AgNO in the solution washed out after centrifugal
3detect without Br.Dry at 60 DEG C, ground 200 mesh sieves, are placed in drier under room temperature for subsequent use.The composite modified bentonite prepared.
In the present invention, the weight ratio of described modified alta-mud and ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent is preferably 50 ~ 90:200 ~ 300:100 ~ 200:50 ~ 100:50 ~ 100:50 ~ 100, is more preferably 65 ~ 85:210 ~ 290:110 ~ 190:60 ~ 90:60 ~ 90:60 ~ 90.
The creationary discovery of the present inventor, through above-mentioned modified alta-mud and ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent after sintering, form synergy mutually, enhance the suction-operated to sulfamethoxazole.
In the present invention, preferably expansion chlorite is also comprised.The weight ratio of described expansion chlorite and described ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent is preferably 50 ~ 90:200 ~ 300:100 ~ 200:50 ~ 100:50 ~ 100:50 ~ 100, is more preferably 65 ~ 85:210 ~ 290:110 ~ 190:60 ~ 90:60 ~ 90:60 ~ 90.
Expansion chlorite be containing (OH)-magnesium, iron, aluminium aluminium silicate mineral.The creationary discovery of the present inventor, above-mentioned expansion chlorite and ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent are after sintering, form synergy mutually, further enhancing the suction-operated to sulfamethoxazole.
In the present invention, the source of above-mentioned raw materials and purity are not particularly limited, preferably commercially available.
The present invention for step in above-mentioned preparation method a) in several raw materials used carried out comparatively detailed description, under the collaborative adduction of this several raw material, the sulfamethoxazole in water can fully be adsorbed.
In the present invention, for the mixing of above-mentioned raw materials without any restriction, can be any low sheraing blender or agitator that significantly can not change diameter of particle and size distribution, can be preferably the agitator, drum-type blender, spiral agitator etc. of blunt impeller blade.Rotating speed for above-mentioned mixer and agitator depending on the type of blender, will not limit this, preferably avoids dust of kicking up.
After above-mentioned raw materials is mixed, the mixture of step a) gained is suppressed in a mold, sinters, cooled.
Be specially, be filled into by mixed powder in pre-designed mould, by pressurization by its compacting, pressure is preferably not more than 2MPa, is more preferably 0.4 ~ 1.0MPa, and adapts with the material of mould therefor; Mould can by sulfamethoxazole, cast iron, steel or any material manufacture bearing relevant pressure and temperature suitably.In mould inner surface release agent application, can select silicone oil or any other the commercially available releasing agent be adsorbed onto hardly on filter medium, also can use processing release paper.Sintering temperature is 200 DEG C ~ 240 DEG C, is more preferably 220 DEG C ~ 230 DEG C; Sintering time is 90 minutes ~ 120 minutes, is cooled to 40 DEG C ~ 60 DEG C demouldings after sintering.In this manufacturing process, after inventor's test many times, draw the filter medium produced in 220 DEG C ~ 230 DEG C in sintering range, filter effect is better.
Present invention also offers following technical scheme: the filter core of sulfamethoxazole in a kind of removal drinking water be made up of above-mentioned filter medium.
Present invention also offers following technical scheme: a kind of purifier, comprise above-mentioned filter medium or filter core.
Present invention also offers a kind of water dispenser comprising above-mentioned purifier.
The present invention is under the synergy of above-mentioned raw materials, the filter medium prepared is high to the clearance of sulfamethoxazole in water, method is simple, is applicable to the drinking water polluted by it, exempts the injury that sulfamethoxazole produces human body, easy to use, cost is low, in addition owing to using filter core, is not powder, so without the need to subsequent treatment, be applicable to the process of home terminal drinking-water.After testing this filter medium to the clearance of sulfamethoxazole in drinking water more than 99.7%.
In order to further illustrate the present invention, be described in detail below in conjunction with the filter medium of embodiment to removal drinking water sulfamethoxazole provided by the invention.
Embodiment 1
(1) taking particle diameter is 80 μm of ultra-high molecular weight polyethylene powder 200g, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) take the medicinal active powdered carbon 100g that particle diameter is 100 μm, the specific area of described medical activated carbon is 800m
2/ g;
(3) taking particle diameter is 2 μm of microsized zeolite 50g;
(4) taking particle diameter is 1nm nano molecular sieve 50g;
(5) gas generation agent 50g is taken;
(6) above-mentioned five kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(7) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 120 minutes;
(8) naturally cool to 50 DEG C and then use the demoulding of siloxanes uranium releasing agent, obtain filter core.
Embodiment 2
(1) take ultra-high molecular weight polyethylene powder 250g, described ultra-high molecular weight polyethylene is the M-III type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 3,500,000;
(2) take medicinal active powdered carbon 150g, the specific area of described medical activated carbon is 1500m
2/ g;
(3) taking particle diameter is 3 μm of microsized zeolite 75g;
(4) taking particle diameter is 2nm nano molecular sieve 75g;
(5) gas generation agent 75g is taken;
(6) above-mentioned five kinds of powder are put into spiral agitator stirring to mix for 10 minutes;
(7) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.6MPa, at 230 DEG C of temperature, sinter 100 minutes;
(8) naturally cool to 50 DEG C and then use the demoulding of siloxanes uranium releasing agent, obtain filter core.
Embodiment 3
(1) take ultra-high molecular weight polyethylene powder 300g, described ultra-high molecular weight polyethylene is the M-IV type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 4,500,000;
(2) take medicinal active powdered carbon 200g, the specific area of described medical activated carbon is 1200m
2/ g;
(3) taking particle diameter is 4 μm of microsized zeolite 100g;
(4) taking particle diameter is 4nm nano molecular sieve 100g;
(5) gas generation agent 100g is taken;
(6) above-mentioned five kinds of powder are put into spiral agitator stirring to mix for 10 minutes;
(7) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.9MPa, at 230 DEG C of temperature, sinter 90 minutes;
(8) naturally cool to 40 DEG C and then use the release paper demoulding, obtain filter core.
Embodiment 4
(1) take ultra-high molecular weight polyethylene powder 250g, described ultra-high molecular weight polyethylene is the M-III type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 3,500,000;
(2) take medicinal active powdered carbon 150g, the specific area of described medical activated carbon is 1500m
2/ g;
(3) taking particle diameter is 3 μm of microsized zeolite 75g;
(4) taking particle diameter is 2nm nano molecular sieve 75g;
(5) gas generation agent 75g is taken;
(6) the rear Inner Mongol bentonite original soil crossing 200 mesh sieves of 60g is dry, grinding pours 600mL into containing in the cationic surfactant solution of 30g softex kw, adds the ethylenediamine solution of 600mL containing certain proportioning at room temperature 25 DEG C after stirring 24h.Deionized water is spent repeatedly, until detect without Br with AgN03 in the solution washed out after centrifugal.Dry at 60 DEG C, ground 200 mesh sieves, are placed in drier under room temperature for subsequent use.
Take the above-mentioned softex kw for preparing and the composite modified bentonite in powder 60g of ethylenediamine;
(7) above-mentioned six kinds of powder are put into spiral agitator stirring to mix for 10 minutes;
(8) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.6MPa, at 230 DEG C of temperature, sinter 100 minutes;
(9) naturally cool to 50 DEG C and then use the demoulding of siloxanes uranium releasing agent, obtain filter core.
Embodiment 5
(1) take ultra-high molecular weight polyethylene powder 250g, described ultra-high molecular weight polyethylene is the M-III type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 3,500,000;
(2) take medicinal active powdered carbon 150g, the specific area of described medical activated carbon is 1500m
2/ g;
(3) taking particle diameter is 3 μm of microsized zeolite 75g;
(4) taking particle diameter is 2nm nano molecular sieve 75g;
(5) gas generation agent 75g is taken;
(6) expansion green mud stone flour 70g is taken;
(7) above-mentioned six kinds of powder are put into spiral agitator stirring to mix for 10 minutes;
(8) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.6MPa, at 230 DEG C of temperature, sinter 100 minutes;
(9) naturally cool to 50 DEG C and then use the demoulding of siloxanes uranium releasing agent, obtain filter core.
Comparative example 1
(1) take ultra-high molecular weight polyethylene powder 250g, described ultra-high molecular weight polyethylene is the M-III type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 3,500,000;
(2) take medicinal active powdered carbon 150g, the specific area of described medical activated carbon is 1500m
2/ g;
(3) taking particle diameter is 3 μm of microsized zeolite 75g;
(4) gas generation agent 75g is taken;
(5) above-mentioned four kinds of powder are put into spiral agitator stirring to mix for 10 minutes;
(6) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.6MPa, at 230 DEG C of temperature, sinter 100 minutes;
(7) naturally cool to 50 DEG C and then use the demoulding of siloxanes uranium releasing agent, obtain filter core.
Comparative example 2
(1) take ultra-high molecular weight polyethylene powder 250g, described ultra-high molecular weight polyethylene is the M-III type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 3,500,000;
(2) take medicinal active powdered carbon 150g, the specific area of described medical activated carbon is 1500m
2/ g;
(3) taking particle diameter is 2nm nano molecular sieve 75g;
(4) gas generation agent 75g is taken;
(5) above-mentioned five kinds of powder are put into spiral agitator stirring to mix for 10 minutes;
(6) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.6MPa, at 230 DEG C of temperature, sinter 100 minutes;
(7) naturally cool to 50 DEG C and then use the demoulding of siloxanes uranium releasing agent, obtain filter core.
Embodiment 6
The filter core of Example 1 ~ 5 and comparative example 1 ~ 2 gained, liner two-layer nonwoven, outsourcing two-layer nonwoven, polypropylene porous web is wrapped again at skin, the bonding upper connection end cap in filter core two ends, is positioned in stainless steel or plastic casing, for the treatment of drinking water, after testing, this filter core is good to the removal effect of the sulfamethoxazole in drinking water.As shown in table 1, the filter core provided for adopting enforcement 1 ~ 6 and comparative example 1 ~ 2 is to the content of the sulfamethoxazole before and after drinking water treatment.
Table 1 uses the sulfamethoxazole content before and after filter core process in water, unit: μ g/L
As can be seen from Table 1, the sulfamethoxazole utilizing filter core of the present invention to remove in water achieves good effect, and clearance is more than 98.0%, and this filter core is applicable to the needs of home terminal drinking water treatment very much.
Above filter medium for removing sulfamethoxazole in drinking water provided by the present invention and preparation method thereof and the filter core that is made up of this filter medium are described in detail.The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. remove a preparation method for the filter medium of sulfamethoxazole in drinking water, it is characterized in that, comprise the following steps:
A) ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent are mixed, obtain mixture, the weight ratio of described ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent is 200 ~ 300:100 ~ 200:50 ~ 100:50 ~ 100:50 ~ 100;
B) mixture of step a) gained is suppressed in a mold, sinters, cooled;
Described pressing pressure is 0.4MPa ~ 1Mpa; Described sintering temperature is 200 DEG C ~ 240 DEG C; Described sintering time is 90 ~ 150min; Described chilling temperature is 40 DEG C ~ 60 DEG C.
2. preparation method according to claim 1, is characterized in that, the aperture of described microsized zeolite is 1 ~ 5 μm; The aperture of described nano molecular sieve is 0.5 ~ 5nm.
3. preparation method according to claim 1, is characterized in that, also comprises modified alta-mud powder.
4. preparation method according to claim 3, is characterized in that, described modified alta-mud powder is the composite modified bentonite of softex kw and ethylenediamine.
5. preparation method according to claim 1, is characterized in that, also comprises expansion chlorite.
6. preparation method according to claim 4, it is characterized in that, the weight ratio of described expansion chlorite and described ultra-high molecular weight polyethylene powder, activated carbon powder, microsized zeolite powder, nano molecular sieve powder and gas generation agent is 50 ~ 90:200 ~ 300:100 ~ 200:50 ~ 100:50 ~ 100:50 ~ 100.
7. the filter medium for removing sulfamethoxazole in drinking water that obtains of preparation method according to any one of claim 1 to 6.
8. a filter core, is characterized in that, is made up of filter medium according to claim 7.
9. a purifier, is characterized in that, comprises filter medium according to claim 7 or filter core according to claim 8.
10. a water dispenser, is characterized in that, comprises purifier according to claim 9.
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| CN106007029A (en) * | 2016-06-28 | 2016-10-12 | 广州市康水科技有限责任公司 | Filter medium for removing ethylenediamine tetraacetic acid (EDTA) from drinking water, filter core and preparation method |
| CN106007030A (en) * | 2016-06-28 | 2016-10-12 | 广州市康水科技有限责任公司 | Filter medium for removing trichloroacetic acid from drinking water, filter core and preparation method |
| CN106186164A (en) * | 2016-08-16 | 2016-12-07 | 成都华津时代科技股份有限公司 | For removing the filter medium of Perchlorate in Drinking Water, filter element and preparation method |
| CN108855083A (en) * | 2018-07-05 | 2018-11-23 | 西南交通大学 | A method of sulfa drugs in water removal is removed with modified zeolite activation Peracetic acid |
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| CN102294147A (en) * | 2011-06-16 | 2011-12-28 | 奇迪电器集团有限公司 | Filtering medium and preparation method used for removing acrylamide in drinking water, and preparation method thereof |
| CN102350130A (en) * | 2011-07-14 | 2012-02-15 | 周奇迪 | Filter medium used for removing epoxy chloropropane in water |
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| JPS58216106A (en) * | 1982-06-09 | 1983-12-15 | Nasa:Kk | Fungicidal composition |
| CN102294147A (en) * | 2011-06-16 | 2011-12-28 | 奇迪电器集团有限公司 | Filtering medium and preparation method used for removing acrylamide in drinking water, and preparation method thereof |
| CN102350130A (en) * | 2011-07-14 | 2012-02-15 | 周奇迪 | Filter medium used for removing epoxy chloropropane in water |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007029A (en) * | 2016-06-28 | 2016-10-12 | 广州市康水科技有限责任公司 | Filter medium for removing ethylenediamine tetraacetic acid (EDTA) from drinking water, filter core and preparation method |
| CN106007030A (en) * | 2016-06-28 | 2016-10-12 | 广州市康水科技有限责任公司 | Filter medium for removing trichloroacetic acid from drinking water, filter core and preparation method |
| CN106186164A (en) * | 2016-08-16 | 2016-12-07 | 成都华津时代科技股份有限公司 | For removing the filter medium of Perchlorate in Drinking Water, filter element and preparation method |
| CN108855083A (en) * | 2018-07-05 | 2018-11-23 | 西南交通大学 | A method of sulfa drugs in water removal is removed with modified zeolite activation Peracetic acid |
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