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CN105498722A - Filtering medium for removing lead in drinking water, filter element and preparation method - Google Patents

Filtering medium for removing lead in drinking water, filter element and preparation method Download PDF

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Publication number
CN105498722A
CN105498722A CN201510874698.4A CN201510874698A CN105498722A CN 105498722 A CN105498722 A CN 105498722A CN 201510874698 A CN201510874698 A CN 201510874698A CN 105498722 A CN105498722 A CN 105498722A
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powder
molecular weight
preparation
ultra
high molecular
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周羿
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Guangzhou Kang Water Science And Technology Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
    • B01J20/041—Oxides or hydroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/12—Naturally occurring clays or bleaching earth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/14—Diatomaceous earth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/46—Materials comprising a mixture of inorganic and organic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Dispersion Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The invention provides a preparation method of a filtering medium for removing lead in drinking water. The preparation method comprises steps as follows: a), UHMWPE (ultra-high molecular weight polyethylene) powder, activated carbon powder, diatomite, attapulgite powder, and a pore forming agent are mixed in the weight ratio being (200-300):(50-100):(50-100):(50-100):(50-100), and a mixture is obtained; b), the mixture obtained in the step a) is pressed, sintered and cooled in a die, wherein the pressing pressure is 0.4 MPa-1MPa, the sintering temperature ranges from 200 DEG C to 240 DEG C, the sintering time lasts for 90-120 min, and the cooling temperature ranges from 40 DEG C to 60 DEG C. The filtering medium prepared at a specific sintering temperature and cooling temperature under specific pressure has a high removal rate for lead under the synthetic function of the raw materials, the method is simple, and a detection result shows that with the adoption of the filtering medium, the removal rate of lead in the drinking water is higher than 99.8%.

Description

For removing the filter medium of Pb in Drinking Water, filter core and preparation method
Technical field
The present invention relates to a kind of filter medium removing Pb 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
Metallic lead is blue and white heavy metal, and matter is soft, and ductility is weak, and malleability is strong.In air, surface is oxidizable and tarnish, dimmed.Lead is common industrial poison.The industry that contact is plumbous and work post have printing, battery, glass, pottery, plastics, paint, chemical industry, shipbuilding, electric welding etc.; The exploitation of lead ore also contacts a large amount of lead with smelting.Plumbous and compound mainly enters human body with the form of dust, cigarette or steam through respiratory tract, is secondly alimentary canal, sucks a large amount of plumbous steams or fine dust if long-term aborning, and in blood, lead content will overrun, causes lead poisoning.
Except above-mentioned situation, the lead contamination in water is also very general: dialysis can go out lead in the water supply network in running water; Can stripping lead in water meter, tap.Blood in human body in content that is plumbous and lead in urine can reflect the absorption to lead in body.Lead mainly damages medulla hematopoietic system and nervous system, and also has certain infringement to the gonad of the male sex.The brain of infant is responsive for the damage ratio adult of lead.The plumbous growth to children's intelligence and behavior have harmful effect.Also can cause damage to growing of children's marrow.
According to investigations, the Shenzhen of China, the children in Nanjing, 70% blood lead all exceeds standard.
The treatment effect of traditional water treatment technology to lead is bad, effectively can not remove lead; Ion-exchange process is loaded down with trivial details, replace saturated after flushing water be difficult to process; Hyperfiltration uses trouble, and water wasting expense electricity, 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 lead 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 Pb in Drinking Water, it is characterized in that, comprise the following steps:
A) ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent are mixed, obtain mixture, the weight ratio of described ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent is 200 ~ 300:50 ~ 100:50 ~ 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 ~ 120min; Described chilling temperature is 40 DEG C ~ 60 DEG C.
Preferably, described concave convex rod stone flour is the concave convex rod stone flour of acid activation.
Preferably, also comprise calcined hydrotalcite powder, the weight ratio of described calcined hydrotalcite powder and ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent is 50 ~ 100:200 ~ 300:50 ~ 100:50 ~ 100:50 ~ 100:50 ~ 100.
Preferably, modified alta-mud powder is also comprised.
Preferably, the weight ratio of described modified alta-mud powder and ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent is 50 ~ 100:200 ~ 300:50 ~ 100:50 ~ 100:50 ~ 100:50 ~ 100.
Preferably, perlite slag is also comprised.
The filter medium for removing Pb 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 Pb in Drinking Water, comprise the following steps: a) ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent are mixed, obtain mixture, the weight ratio of described ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent is 200 ~ 300:50 ~ 100:50 ~ 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 ~ 120min; Described chilling temperature is 40 DEG C ~ 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 clearance plumbous in water, and method is simple, be applicable to the drinking water polluted by it, exempt the plumbous injury produced 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 Pb in Drinking Water more than 99.8%.
Detailed description of the invention
The invention provides a kind of preparation method removing the filter medium of Pb in Drinking Water, it is characterized in that, comprise the following steps:
A) ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent are mixed, obtain mixture, the weight ratio of described ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent is 200 ~ 300:50 ~ 100:50 ~ 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 ~ 120min; Described chilling temperature is 40 DEG C ~ 60 DEG C.
First ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour 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, diatomite, concave convex rod stone flour and gas generation agent is 200 ~ 300:50 ~ 100:50 ~ 100:50 ~ 100:50 ~ 100; Be preferably 210 ~ 290:60 ~ 90:60 ~ 90:60 ~ 90:60 ~ 90; Be more preferably 220 ~ 280:65 ~ 85:65 ~ 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, effect plumbous 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 74 ~ 104 μm.
Active carbon, except having the undefined structure in two-dimentional effective crystallite district and irregular crosslinked carbon hexangle type space lattice, has multiple oxygen-containing functional group on the surface.Can with good Adsorption of Lead.
Diatomite is preferably modification infusorial earth.Diatomite is the remains composition of diatom that oxycompound is very high, radiolitid or sponge, silica type in diatom skeletal is similar to opal or moisture silica, primarily of silica composition, and containing a small amount of di-iron trioxide, calcium oxide, magnesia and aluminium oxide and organic impurities.Diatomite is usually in light yellow or light grey, and matter is soft, porous and lighter.Jilin, Tengchong In Yunnan Province and Shengzhou, Zhejiang Province is mainly originated in China.
Diatomite has absorption, drainage and Coagulation aiding concurrently and makes the treatment effect for lead good.
In the present invention, described attapulgite is monoclinic system, and its desirable chemical formula is for being Mg 5(H 20) 4[Si 4o 10] 2(OH) 2, chemical composition theoretical value is MgO23.83%, SiO 256.96%, H 2o19.21%; The attapulgite of occurring in nature often has Al 3+, Fe 3+deng isomorphous replacement, be rich in Al 3+, Fe 3+mutation is called aluminium attapulgite and iron attapulgite.As being called for MgO12.10%, SiO of aluminium attapulgite of Xuyi County of Jiangsu Province Dragon King mountain products 258.38%, Al 2o 39.5%, CaO0.4%, TiO 20.56%, MnO0.05%, Fe 2o 3+ FeO5.26%, Na 2o1.1%, K 2o1.24%.Because attapulgite is similar to the major path of zeolite powder in the structure, therefore there is good absorption and decoloration performance, have good absorption property to the organic and hydrogen sulfide decomposed etc., SiO in the absorption property of concave convex rod stone flour and mineral 2content relevant, content more high absorption capacity is stronger.
Concave-convex clay rod has chain layer structure, there is a series of crystal duct in crystal structure, and specific area is large, has very strong physical absorption ability.Due to isomorphous replacement in crystal, there is crystal defect and room, make attapulgite with aspect negative electrical charge, and rely on the cation of Inter layer adsorption to make charge balance.Because the cation of crystal Inter layer adsorption has interchangeability.Concave-convex clay rod has stronger ion-exchange absorption ability, and the absorption of heavy metal ion is mainly effective by above-mentioned adsorption mechanism.The present inventor finds, concave convex rod stone flour has the absorption of ion-exchange well ability to lead.
In the present invention, preferably to concave convex rod stone flour through acid activation.The method of acid activation preferably includes sulfuric acid process, hydrochloric acid method, sulfuric acid-mixed in hydrochloric acid method.The present invention preferably uses the concave convex rod stone flour of hydrochloric acid activation modification, more preferably uses following method: comprise the volume moon 0.5 ~ 100cm of fritter 3attapulgite silty clay soil raw ore, soak 2 ~ 100 hours with the inorganic acid solution (as sulfuric acid, hydrochloric acid solution etc.) that concentration is 1 ~ 15wt%, filter extruding in flakes, at 280 DEG C ~ 350 DEG C, activate 30 ~ 50 minutes with revolving drier, the decolorizing ability being ground into 50 μm ~ 100 μm is the active attapulgite stone flour of 250 ± 5.
In the present invention, preferably, the particle diameter of concave convex rod stone flour after acid activation process is 74 μm ~ 104 μm, is more preferably 80 μm ~ 100 μm.The concave convex rod stone flour of acid activation process has larger specific area, and for multiple suction types such as the absorption of uranium outer surface, colloid absorption and its inner surfaces of pores absorption, adsorption capacity is stronger.
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, diatomite, concave convex rod stone flour and gas generation agent sintering, the netted knot of formation and charge property enhance the suction-operated to lead.Cooperatively interacting and interacting by these five kinds of raw materials, makes the clearance for the lead in drinking water high, effective jointly.
In the present invention, preferably also comprise calcined hydrotalcite powder, the weight ratio of described calcined hydrotalcite powder and ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent is preferably 50 ~ 100:200 ~ 300:50 ~ 100:50 ~ 100:50 ~ 100:50 ~ 100, is more preferably 60 ~ 90:210 ~ 290:60 ~ 90:60 ~ 90:60 ~ 90:60 ~ 90.
Hydrotalcite powder of the present invention is preferably prepared in accordance with the following methods:
With analytically pure Mg (NO 3) 26H 2o, Al (NO 3) 39H 2o and urea are raw material, and Mg/Al mol ratio is respectively 1,4 and 6, and being made into metal ion total amount is 0.5mol, urea/NO 3– mol ratio is 3, loads and fills in the there-necked flask of 500mL deionized water, strong stirring in 105 DEG C of oil baths, isothermal reaction 10h, 80 DEG C of static crystallization 18h, suction filtration, and washing is dry, and grinding, obtains magnalium hydrotalcite sample, be designated as MgAl-LDH.
Get the MgAl-LDH that Mg/Al mol ratio is 4, at 500 DEG C, calcine 5h, obtain composite metal oxide, be designated as LDO-C.
The creationary discovery of the present inventor, described calcined hydrotalcite powder and ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent, after sintering, are formed and mutually act synergistically, greatly strengthen the suction-operated to lead further.
In the present invention, preferably modified alta-mud powder is also comprised.The weight ratio of described modified alta-mud powder and ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent is preferably 50 ~ 100:200 ~ 300:50 ~ 100:50 ~ 100:50 ~ 100:50 ~ 100, is more preferably 60 ~ 90:210 ~ 290:60 ~ 90:60 ~ 90:60 ~ 90:60 ~ 90.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.
The creationary discovery of the present inventor, described modified alta-mud powder and ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent, after sintering, are formed and mutually act synergistically, greatly strengthen the suction-operated to lead further.
In the present invention, preferably perlite slag is also comprised.The weight ratio of described perlite slag and ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent is preferably 50 ~ 100:200 ~ 300:50 ~ 100:50 ~ 100:50 ~ 100:50 ~ 100, is more preferably 60 ~ 90:210 ~ 290:60 ~ 90:60 ~ 90:60 ~ 90:60 ~ 90.
The creationary discovery of the present inventor, described perlite slag and ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent, after sintering, are formed and mutually act synergistically, greatly strengthen the suction-operated to lead further.
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 lead 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 lead, 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: a kind of filter core of the removal Pb in 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 clearance plumbous in water, method is simple, is applicable to the drinking water polluted by it, exempts the plumbous injury produced 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 Pb in Drinking Water more than 99.8%.
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 lead 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 50g that particle diameter is 100 μm, the specific area of described medical activated carbon is 800m 2/ g;
(3) diatomite in powder 50g is taken;
(4) the acid activation concave convex rod stone flour 50g that the particle diameter carrying out activating according to acid activation mode of the present invention is 90 μm is taken;
(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) taking particle diameter is 80 μm of medicinal active powdered carbon 75g, and the specific area of described medical activated carbon is 1500m 2/ g;
(3) diatomite in powder 75g is taken;
(4) the acid activation concave convex rod stone flour 75g that the particle diameter carrying out activating according to acid activation mode of the present invention is 80 μm is taken;
(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) taking particle diameter is 100 μm of medicinal active powdered carbon 100g, and the specific area of described medical activated carbon is 1200m 2/ g;
(3) diatomite in powder 100g is taken;
(4) the acid activation concave convex rod stone flour 100g that the particle diameter carrying out activating according to acid activation mode of the present invention is 90 μm is taken;
(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) taking particle diameter is 80 μm of medicinal active powdered carbon 75g, and the specific area of described medical activated carbon is 1500m 2/ g;
(3) diatomite in powder 75g is taken;
(4) the acid activation concave convex rod stone flour 75g that the particle diameter carrying out activating according to acid activation mode of the present invention is 80 μm is taken;
(5) gas generation agent 75g is taken;
(6) take and carry out according to calcining manners of the present invention the hydrotalcite powder 80g that calcines;
(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) taking particle diameter is 80 μm of medicinal active powdered carbon 75g, and the specific area of described medical activated carbon is 1500m 2/ g;
(3) diatomite in powder 75g is taken;
(4) the acid activation concave convex rod stone flour 75g that the particle diameter carrying out activating according to acid activation mode of the present invention is 80 μm is taken;
(5) gas generation agent 75g is taken;
(6) the modified alta-mud powder 80g carrying out modification according to modification mode of the present invention 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.
Embodiment 6
(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) taking particle diameter is 80 μm of medicinal active powdered carbon 75g, and the specific area of described medical activated carbon is 1500m 2/ g;
(3) diatomite in powder 75g is taken;
(4) the acid activation concave convex rod stone flour 75g that the particle diameter carrying out activating according to acid activation mode of the present invention is 80 μm is taken;
(5) gas generation agent 75g is taken;
(6) perlite slag 80g 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;
(10) 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) taking particle diameter is 80 μm of medicinal active powdered carbon 75g, and the specific area of described medical activated carbon is 1500m 2/ g;
(3) the acid activation concave convex rod stone flour 75g that the particle diameter carrying out activating according to acid activation mode of the present invention is 80 μm is taken;
(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) taking particle diameter is 80 μm of medicinal active powdered carbon 75g, and the specific area of described medical activated carbon is 1500m 2/ g;
(3) diatomite in powder 75g is taken;
(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 7
The filter core of Example 1 ~ 6 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 lead 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 lead before and after drinking water treatment.
Table 1 uses the lead content before and after filter core process in water, unit: μ g/L
As can be seen from Table 1, the lead utilizing filter core of the present invention to remove in water achieves good effect, and clearance is more than 99.8%, and this filter core is applicable to the needs of home terminal drinking water treatment very much.
Be described in detail for filter medium removing Pb in Drinking Water and preparation method thereof and the filter core that is made up of this filter medium provided by the present invention above.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 Pb in Drinking Water, it is characterized in that, comprise the following steps:
A) ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent are mixed, obtain mixture, the weight ratio of described ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent is 200 ~ 300:50 ~ 100:50 ~ 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 ~ 120min; Described chilling temperature is 40 DEG C ~ 60 DEG C.
2. preparation method according to claim 1, is characterized in that, described concave convex rod stone flour is the concave convex rod stone flour of acid activation.
3. preparation method according to claim 1, it is characterized in that, also comprise calcined hydrotalcite powder, the weight ratio of described calcined hydrotalcite powder and ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent is 50 ~ 100:200 ~ 300:50 ~ 100:50 ~ 100:50 ~ 100:50 ~ 100.
4. preparation method according to claim 1, is characterized in that, also comprises modified alta-mud powder.
5. preparation method according to claim 4, it is characterized in that, the weight ratio of described modified alta-mud powder and ultra-high molecular weight polyethylene powder, activated carbon powder, diatomite, concave convex rod stone flour and gas generation agent is 50 ~ 100:200 ~ 300:50 ~ 100:50 ~ 100:50 ~ 100:50 ~ 100.
6. preparation method according to claim 1, is characterized in that, also comprises perlite slag.
7. the filter medium for removing Pb 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.
CN201510874698.4A 2015-12-01 2015-12-01 Filtering medium for removing lead in drinking water, filter element and preparation method Pending CN105498722A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106042245A (en) * 2016-06-28 2016-10-26 广州市康水科技有限责任公司 Preparation method of material composition for effectively relieving noise pollution
CN106215900A (en) * 2016-08-28 2016-12-14 桂林新艺制冷设备有限责任公司 A kind of sewage treating material and preparation method thereof
CN106345179A (en) * 2016-08-29 2017-01-25 山东胜伟园林科技有限公司 Multi-functional compound filter materials and preparing method thereof
CN107159160A (en) * 2017-05-31 2017-09-15 广州市拓沃卫浴科技有限公司 Incretion interferent bis-phenol E filter medium, filter core and preparation method in a kind of removal drinking water
CN107469790A (en) * 2017-09-07 2017-12-15 广州尊卓环保科技有限公司 Remove filter medium, filter core and the preparation method of aflatoxin in edible oil
WO2018139941A1 (en) * 2017-01-26 2018-08-02 Ryan Francis Limited Sorbent composition and related system and method
CN109081395A (en) * 2018-09-12 2018-12-25 江苏超捷催化剂有限公司 A kind of drinking water composition silicate and preparation method thereof
CN111233487A (en) * 2020-01-18 2020-06-05 丽江永胜瓷业有限责任公司 Lead filtering method for ceramic material preparation equipment

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101569856A (en) * 2008-04-30 2009-11-04 周奇迪 Filtering medium for removing metallic lead in water and preparation method thereof
CN104028248A (en) * 2014-05-19 2014-09-10 梁晓 Filtering medium for removing lead in water and preparation method thereof
CN104028250A (en) * 2014-06-24 2014-09-10 潘峰 Filtering medium for removing aluminum in drinking water, filter element and method for preparing filtering medium
CN104083944A (en) * 2014-06-24 2014-10-08 潘峰 Filtering medium for removing lead from drinking water, filter core and preparation method
CN104587959A (en) * 2015-01-29 2015-05-06 慈溪市天泉电器科技有限公司 Filter medium for removing endosulfan from water as well as filter element and preparation method of filter medium
CN104667632A (en) * 2015-01-29 2015-06-03 佛山市农业总公司 Filtering medium for removing lead in drinking water, filter core and preparation method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101569856A (en) * 2008-04-30 2009-11-04 周奇迪 Filtering medium for removing metallic lead in water and preparation method thereof
CN104028248A (en) * 2014-05-19 2014-09-10 梁晓 Filtering medium for removing lead in water and preparation method thereof
CN104028250A (en) * 2014-06-24 2014-09-10 潘峰 Filtering medium for removing aluminum in drinking water, filter element and method for preparing filtering medium
CN104083944A (en) * 2014-06-24 2014-10-08 潘峰 Filtering medium for removing lead from drinking water, filter core and preparation method
CN104587959A (en) * 2015-01-29 2015-05-06 慈溪市天泉电器科技有限公司 Filter medium for removing endosulfan from water as well as filter element and preparation method of filter medium
CN104667632A (en) * 2015-01-29 2015-06-03 佛山市农业总公司 Filtering medium for removing lead in drinking water, filter core and preparation method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张帆等: "处理含铅废水的现状及研究进展", 《化学通报》 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106042245A (en) * 2016-06-28 2016-10-26 广州市康水科技有限责任公司 Preparation method of material composition for effectively relieving noise pollution
CN106215900A (en) * 2016-08-28 2016-12-14 桂林新艺制冷设备有限责任公司 A kind of sewage treating material and preparation method thereof
CN106345179A (en) * 2016-08-29 2017-01-25 山东胜伟园林科技有限公司 Multi-functional compound filter materials and preparing method thereof
WO2018139941A1 (en) * 2017-01-26 2018-08-02 Ryan Francis Limited Sorbent composition and related system and method
AU2018212308B2 (en) * 2017-01-26 2023-11-23 Ryan Francis Limited Sorbent composition and related system and method
CN107159160A (en) * 2017-05-31 2017-09-15 广州市拓沃卫浴科技有限公司 Incretion interferent bis-phenol E filter medium, filter core and preparation method in a kind of removal drinking water
CN107469790A (en) * 2017-09-07 2017-12-15 广州尊卓环保科技有限公司 Remove filter medium, filter core and the preparation method of aflatoxin in edible oil
CN109081395A (en) * 2018-09-12 2018-12-25 江苏超捷催化剂有限公司 A kind of drinking water composition silicate and preparation method thereof
CN111233487A (en) * 2020-01-18 2020-06-05 丽江永胜瓷业有限责任公司 Lead filtering method for ceramic material preparation equipment

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