CN107185309A - A kind of water process composite filtering material and preparation method thereof - Google Patents
A kind of water process composite filtering material and preparation method thereof Download PDFInfo
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- CN107185309A CN107185309A CN201710499319.7A CN201710499319A CN107185309A CN 107185309 A CN107185309 A CN 107185309A CN 201710499319 A CN201710499319 A CN 201710499319A CN 107185309 A CN107185309 A CN 107185309A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
- D04H1/544—Olefin series
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/76—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres otherwise than in a plane, e.g. in a tubular way
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
- B01D2239/0208—Single-component fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1208—Porosity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1275—Stiffness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1291—Other parameters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention relates to a kind of water process composite filtering material and preparation method thereof, the composite filtering material includes the tridimensional network being made up of polypropylene fibre, and the hud typed water purification particle being scattered in the tridimensional network；The hud typed water purification particle includes kernel and shell, and the kernel includes porous particle, and the shell includes ormolu layer.Composite filtering material grammes per square metre of the present invention is 200g/m2Hereinafter, porosity is more than 80%, and elongation at break is more than 800%, and fracture strength is more than 50MPa, and wear rate is less than 0.2%, and product is to ammonia nitrogen in sewage removal rate up to more than 95%, COD removal rate up to more than 98%, and heavy metal removal rate is up to more than 95%.
Description
Technical field
The present invention relates to water treatment field, especially technical field of water treatment, and in particular to a kind of water process composite filter
Material and preparation method thereof.
Background technology
During the last ten years, China's economic development is rapid, but environmental pollution is increasingly serious for reform and opening-up three, and especially drinking water is dirty
Dye is especially prominent.Show according to the World Health Organization (WHO) investigation, due to digestive disease, infection caused by drinking water undesired water
The kind up to more than 50 such as sick, various skin diseases, diabetes, cancer, lithiasis, cardiovascular disease, the disease in the whole world 80% and 50%
Death of child it is all bad relevant with drinking water quality.To ensure national people's drinking water safety, the Chinese government was sent out in 2007
Cloth simultaneously implements mandatory country《Standards for drinking water quality》(GB5749-2006).
In general, in drinking water impurity and pollutant that may be present mainly include some suspensions, colloidal substance and
Dissolved matter, wherein with the heavy metal ion such as bacterium, virus, chlorine residue and arsenic, lead, cadmium, chromium to the harm of health most
Greatly.Therefore, in water treatment procedure, it is crucial to remove above-mentioned all kinds of harmful substances.At present, the water-purifying material being widely adopted is main
Active charcoal is porous material, molecular sieve type materials and KDF class materials of representative etc..
Activated carbon polyporous materials typically have flourishing pore structure, specific surface area big, active high, and this kind of material is general
All there is very strong suction-operated, its drainage principle is mainly physical absorption, there is application widely in drainage field.Energy
Free chlorine, phenol, sulphur, oil, colloid, pesticide residue and other organic contaminations and organic solvent effectively in absorption water, have very
Strong decolouring, deodorization go peculiar smell to act on.But, the easy breed bacteria of organic matter adsorbed in activated carbon surface causes in water outlet
Bacterium is exceeded, and the adsorption effect of heavy metal ion is general.
Molecular sieve refers to the natural or artificial synthesized chemical substance with network structure.Such as cross-link dextran, zeolite,
When as chromatography media, classification separation can be carried out to mixture by molecular size.Such material also has more micro- than more rich
Hole, with certain physical absorption ability, while also there is the ability of ion exchange, the most of metal that can effectively go in water removal
Ion.This kind of material biggest advantage is reproducible utilization, still, also easy breed bacteria, causes bacterium in water outlet exceeded, and
And its adsorption capacity is poor.
KDF materials are a kind of Copper-zinc alloy materials of high-purity, are had by electrochemical oxidation-reduction (electro transfer) reaction
Effect ground reduces or removes the chlorine and heavy metal in water, and suppresses the growth and breeding of microorganism in water, while being also effectively reduced ore deposit
Thing fouling, is one of method for treating water ideal at present.But KDF materials in drainage and water contact surface it is smaller, it is uncomfortable
Close and applied under high flow rate, simultaneously because its material therefor is high purity copper and zinc, cost is very high, and significantly limit popularization makes
With.
At present, the patent document on water process water-purifying material also has much.For example：Application No. 02136614.4 is sent out
A kind of patent of invention of bright entitled " high-strength ceramic granule filter material and its manufacture method for water process ", the patent of invention is public
Open a kind of any one or two or more materials with kaolin, medical stone, montmorillonite, shale etc. to mix, be aided with additive burning
The ceramic granule filter material of system.The invention mainly uses the suction-operated of the materials such as kaolin, medical stone to reach water purification mesh
, it is disadvantageous in that after filtrate top layer absorption organic matter easily breed bacteria, causes bacterium in water outlet exceeded, and
The removal effect of the filtrate heavy metal ion is not obvious.CN1544352A, CN1544343A and CN1544342A are public respectively
Opened one kind by filler of high polymer material, nanometer filtrate be filtering bodies, the net of stratiform circular, curling tubular and sheet is made
Water material, for going heavy metal, organic matter, virus and bacterium in water removal etc., this water-purifying material function is more, purifying water effect ratio
Preferably, it is poor under long-term stability in use in water but due to largely using high polymer material as filler, its water purification can be influenceed
Effect.CN100369826C discloses one kind by porous silica, atlapulgite, Woelm Alumina, molecular sieve, activated carbon, silicon
Any of diatomaceous earth is a variety of, the multi-element metal being made with reference to two or more the metal in silver, copper, zinc, rare earth
Cluster water-purifying material, high adsorption capacity, water purification ability comprehensively, be a kind of excellent water-purifying material, its be disadvantageous in that cost compared with
Height, and particle size, pore size can not adjust freely, application is smaller.
The content of the invention
In view of problems of the prior art, an object of the present invention is to provide a kind of water process composite filter
Material, the composite filtering material includes the tridimensional network being made up of polypropylene fibre, and is scattered in the tridimensional network
In hud typed water purification particle；The hud typed water purification particle includes kernel and shell, and the kernel includes porous particle, described
Shell includes ormolu layer.
The porous particle is including any one in activated carbon, Woelm Alumina, diatomite and porous ceramics or at least
Two kinds of combination, wherein typical but non-limiting be combined as：Combination, diatomite and the porous pottery of activated carbon and Woelm Alumina
Combination, activated carbon and the combination with porous ceramics of porcelain；It is preferred that activated carbon, Woelm Alumina and it is diatomaceous any one or extremely
Few two kinds combination.Porous material mainly plays physisorption.Wherein activated carbon is the good conductor of electricity, can improve ormolu
Chemical reaction rate, Woelm Alumina improve ormolu oxidation resistance, stability and corrosion resistance, diatomite with
Ormolu is cooperateed with, and can reduce the scale formation in water.
Ormolu layer of the present invention preferably includes ormolu and rare earth metal.Rare earth metal and ormolu and many
Porous materials are cooperateed with, and abundant oxidation-reduction potential area is formed in water purification particle surface, filtrate chemical adsorption capacity is favorably improved
With the efficiency of purification and impurity removal.
Preferably, the mass ratio of the rare earth metal and ormolu is (0.5~15):100, such as 0.5:100、0.8:
100、1:100、2:100、3:100、4:100、5:100、6:100、7:100、8:100、9:100、10:100、12:100 or 15:
100 etc., preferably (2~8):100.The thickness of ormolu of the present invention layer is preferably 1~10nm, such as 1nm, 2nm, 3nm,
4nm, 5nm, 6nm, 7nm, 8nm, 9nm or 10nm etc., preferably 1~5nm.The absorption of the too thick then water purification particle of ormolu layer compared with
Difference, cleaning water reduction.
The median particle diameter of hud typed water purification particle of the present invention is preferably 1~20 μm, such as 1 μm, 2 μm, 3 μm, 4 μm, 5
μm, 6 μm, 8 μm, 10 μm, 12 μm, 14 μm, 15 μm, 18 μm or 20 μm etc., preferably 1~5 μm.
The diameter of polypropylene fibre of the present invention is preferably 50~100 μm, such as 50 μm, 55 μm, 60 μm, 62 μm, 65 μ
M, 68 μm, 69 μm, 70 μm, 75 μm, 80 μm, 85 μm, 90 μm, 95 μm or 100 μm etc., preferably 60~70 μm.The diameter of fiber is too
The small network structure for being difficult to be formed certain three-dimensional conformation also easily occurs tackness and reunites, and is unfavorable for water purification particle wherein
It is scattered, bad mechanical property；The diameter of fiber is too big then to have plasticity, and service life is short.
Also include nano-aluminum hydroxide and/or polyether modified silicon oil in polypropylene fibre of the present invention.Polypropylene fibre
It is the skeletal substance for constituting filtrate of the present invention, adds nano-aluminum hydroxide and/or polyether modified silicon oil can further improve its machine
Tool intensity and durability, in addition, aluminium hydroxide can also produce cooperative effect as metal oxide with ormolu, improve filtrate
To the redox reaction ability of harmful substance in water.
Preferably, nano-aluminum hydroxide and polyacrylic mass ratio are (1~5) in the polypropylene fibre:(30~50),
Such as 1:30、2:35、2:40、3:40、3:35、2.5:38、5:50、5:30、1:50 or 4:45 etc., preferably (2~3):(35~
40)。
Preferably, polyether modified silicon oil and polyacrylic mass ratio are (1~5) in the polypropylene fibre:(30~50),
Such as 1:30、2:35、2:40、3:40、3:35、2.5:38、5:50、5:30、1:50 or 4:45 etc., preferably (2~3):(35~
40)。
The mass ratio of hud typed water purification particle of the present invention and the polypropylene fibre is (3~10):(1~4), for example
3:1、3:4、10:1、10:4、5:1、5:2、8:1、6:2、7:1、8:2、9:2 or 4:3 etc., preferably (5~8):(1~2).
The second object of the present invention is to provide the preparation method of the composite filtering material as described in the first purpose, including following step
Suddenly：
(1) porous particle is immersed in 80~100 DEG C of copper, the zinc source metal aqueous solution, isolated solid phase, done
It is dry to after constant weight in reducing atmosphere 600~780 DEG C of 2~10h of calcining, obtain water purification particle；
(2) polypropylene is put into melt-blown non-woven former, melt is 200~220 DEG C of meltblown beam through temperature
Spinneret orifice sprays, and the filament of ejection enters reception device, the height after being stretched under 230~250 DEG C of stream of hot air effect
Speed heat air stream includes the water purification particle obtained by step (1), and filament to be composite assembles shaping on the reception device, completely cold
But obtain afterwards.
Wherein, for example, step (1) described dipping temperature be 80 DEG C, 81 DEG C, 82 DEG C, 85 DEG C, 87 DEG C, 88 DEG C, 90 DEG C, 93
DEG C, 95 DEG C, 98 DEG C or 100 DEG C etc., calcining heat is 600 DEG C, 620 DEG C, 650 DEG C, 680 DEG C, 700 DEG C, 720 DEG C, 750 DEG C, 760
DEG C, 770 DEG C or 780 DEG C etc., calcination time is 2h, 3h, 4h, 5h, 6h, 7h, 8h, 9h or 10h etc.；Step (2) described melt blown die
Head temperature is 200 DEG C, 202 DEG C, 205 DEG C, 208 DEG C, 210 DEG C, 213 DEG C, 215 DEG C, 218 DEG C or 220 DEG C etc., high velocity, hot air stream
Temperature is 230 DEG C, 232 DEG C, 235 DEG C, 238 DEG C, 240 DEG C, 243 DEG C, 245 DEG C, 248 DEG C or 250 DEG C etc., the stream of hot air
As long as water purification particle can uniformly be attached in polypropylene filaments and can be dried to polypropylene filaments without obvious by flow velocity
Tackness is reunited.
Compared to directly before melt-blown by the method for co-extrusion in water purification particle and pp material, preparation method of the present invention
Water purification particle is attached to polypropylene fibre online, it is to avoid the water purification particle active surface caused by co-extrusion is covered by polypropylene
And be difficult to contact pretreated water the problem of, improve crown_interception and purification efficiency of the filtrate to water, and save ormolu
Consumption so as to saving the bulk density and cost of filtrate.
Step (1) the of the present invention calcining heat is 700~780 DEG C.
Preferably, step (1) described calcination time is 3~6h.
Preferably, a diameter of 50~100 μm of step (2) described spinneret orifice, such as 50 μm, 55 μm, 60 μm, 62 μm, 65 μ
M, 68 μm, 69 μm, 70 μm, 75 μm, 80 μm, 85 μm, 90 μm, 95 μm or 100 μm etc., preferably 60~70 μm.
Relative to prior art, the present invention at least has the advantages that：
The present invention constitutes tridimensional network using polypropylene fibre with low cost, with stronger retaining power, power
Learn excellent performance, form and size flexibly, the hud typed water purification aggregates the being dispersed therein physical absorption of porous material
With the chemisorbed and respond of ormolu, cooperate with each other, efficient water purification, performance is stable, service life is long, it is recyclable to make
With.Composite filtering material grammes per square metre of the present invention is 200g/m2Hereinafter, porosity is more than 80%, and elongation at break is more than 800%, is broken
Resistance to spalling is more than 50MPa, and wear rate is less than 0.2%, and product is removed to ammonia nitrogen in sewage removal rate up to more than 95%, COD
Rate is up to more than 98%, and heavy metal removal rate is up to more than 95%.
Embodiment
Technical scheme is further illustrated below by embodiment.
For the present invention is better described, technical scheme is readily appreciated, it is as follows that the present invention enumerates embodiment.Ability
Understanding is of the invention it will be clearly understood that the embodiment is only to aid in by field technique personnel, is not construed as the concrete restriction to the present invention.
Embodiment 1
A kind of water process composite filtering material, including the tridimensional network being made up of a diameter of 50 μm of polypropylene fibre,
And disperse the hud typed water purification particle that median particle diameter therein is 20 μm, the quality of hud typed water purification particle and polypropylene fibre
Than for 3:4, the kernel of hud typed water purification particle is activated carbon, and shell is the ormolu layer that thickness is 10nm.
The preparation of this water process composite filtering material comprises the following steps：
1) activated carbon is immersed in 80 DEG C of copper, the zinc source metal aqueous solution, isolated solid phase, dried to constant weight
780 DEG C of calcining 2h, obtain water purification particle in hydrogen atmosphere；
2) polypropylene is put into melt-blown non-woven former, melt is 200 DEG C of meltblown beam spinneret orifice through temperature
Spray, a diameter of 50 μm of spinneret orifice, the filament of ejection enters after being stretched under 230 DEG C of stream of hot air effect receives dress
Put, the high velocity, hot air stream includes step 1) obtained by water purification particle, filament to be composite is gathered on the reception device
Obtained after shape, completely cooling.
This composite filtering material grammes per square metre is 190g/m2, porosity is 85%, and elongation at break is 850%, and fracture strength is
52MPa, wear rate is 0.18%, and product is to ammonia nitrogen in sewage removal rate up to 95.8%, COD removal rate up to 98.7%, heavy metal
Removal rate is up to 95.6%.
Comparative example 1-1
With differing only in for embodiment 1：Preparation process is different, specifically, step 2) be：By polypropylene and step 1) institute
Screw extruder extruding pelletization is used after the water purification particle blending obtained, then is put into melt-blown non-woven former, melt is through temperature
Sprayed for 200 DEG C of meltblown beam spinneret orifices, a diameter of 50 μm of spinneret orifice, the stream of hot air of the filament of ejection at 230 DEG C
Effect is lower stretch after enter do not include step 1 in reception device, the high velocity, hot air stream) obtained by water purification particle, it is to be composite
Filament assembles shaping on the reception device, is obtained completely after cooling.
This composite filtering material grammes per square metre is 250g/m2, porosity is 70%, and elongation at break is 700%, and fracture strength is
38MPa, wear rate is 0.3%, and product is to ammonia nitrogen in sewage removal rate up to 91%, COD removal rate up to 90%, heavy metal removal rate
Up to 92%.
Comparative example 1-2
With differing only in for embodiment 1：The diameter of spinneret orifice and polypropylene fibre is 10 μm.
This composite filtering material grammes per square metre is 200g/m2, porosity is 80%, and elongation at break is 800%, and fracture strength is
50MPa, wear rate is 0.2%, and product is to ammonia nitrogen in sewage removal rate up to 95%, COD removal rate up to 98.1%, and heavy metal is removed
Rate is up to 95%.
Embodiment 2
A kind of water process composite filtering material, including the tridimensional network being made up of a diameter of 100 μm of polypropylene fibre,
And disperse the hud typed water purification particle that median particle diameter therein is 10 μm, the quality of hud typed water purification particle and polypropylene fibre
Than for 10:1, the kernel of hud typed water purification particle is porous ceramics, and shell is the ormolu that thickness is 7nm.
The preparation of this water process composite filtering material comprises the following steps：
1) porous ceramics is immersed in 100 DEG C of copper, the zinc source metal aqueous solution, isolated solid phase, dried to constant weight
780 DEG C of calcining 10h in carbon monoxide atmosphere, obtain water purification particle afterwards；
2) polypropylene is put into melt-blown non-woven former, melt is 220 DEG C of meltblown beam spinneret orifice through temperature
Spray, a diameter of 100 μm of spinneret orifice, the filament of ejection enters after being stretched under 250 DEG C of stream of hot air effect receives dress
Put, the high velocity, hot air stream includes step 1) obtained by water purification particle, filament to be composite is gathered on the reception device
Obtained after shape, completely cooling.
This composite filtering material grammes per square metre is 195g/m2, porosity is 83%, and elongation at break is 860%, and fracture strength is
53MPa, wear rate is 0.16%, and product is to ammonia nitrogen in sewage removal rate up to 95.9%, COD removal rate up to 98.5%, heavy metal
Removal rate is up to 95.3%.
Comparative example 2
With differing only in for embodiment 2：The diameter of spinneret orifice and polypropylene fibre is 300 μm.
This composite filtering material grammes per square metre is 199g/m2, porosity is 80.5%, and elongation at break is 805%, and fracture strength is
50MPa, wear rate is 0.17%, and product is to ammonia nitrogen in sewage removal rate up to 95.1%, COD removal rate up to 98.2%, heavy metal
Removal rate is up to 95%.
Embodiment 3
A kind of water process composite filtering material, including the tridimensional network being made up of a diameter of 60 μm of polypropylene fibre,
And disperse the hud typed water purification particle that median particle diameter therein is 1 μm, the quality of hud typed water purification particle and polypropylene fibre
Than for 5:2, nano-aluminum hydroxide and polyether modified silicon oil, nano-aluminum hydroxide and polyacrylic quality are contained in polypropylene fibre
Than for 2:40, polyether modified silicon oil and polyacrylic mass ratio 3:35, the kernel of hud typed water purification particle is activated carbon, and shell is
Containing rare earth metal scandium in the ormolu layer that thickness is 1nm, ormolu layer, the mass ratio of scandium and ormolu is 0.5:
100。
The preparation of this water process composite filtering material comprises the following steps：
1) activated carbon is immersed in 85 DEG C of copper, zinc, the scandium source metal aqueous solution, isolated solid phase, dried to constant weight
Afterwards 700 DEG C in hydrogen atmosphere；3h is calcined, water purification particle is obtained；
2) polypropylene is put into melt-blown non-woven former, melt is 205 DEG C of meltblown beam spinneret orifice through temperature
Spray, a diameter of 60 μm of spinneret orifice.The filament of ejection enters after being stretched under 235 DEG C of stream of hot air effect receives dress
Put, the high velocity, hot air stream includes step 1) obtained by water purification particle, filament to be composite is gathered on the reception device
Obtained after shape, completely cooling.
This composite filtering material grammes per square metre is 130g/m2, porosity is 88%, and elongation at break is 1000%, and fracture strength is
58MPa, wear rate is 0.15%, and product is to ammonia nitrogen in sewage removal rate up to 96.5%, COD removal rate up to 99%, and heavy metal is removed
Rate is gone up to 97%.
Embodiment 4
A kind of water process composite filtering material, including the tridimensional network being made up of a diameter of 70 μm of polypropylene fibre,
And disperse the hud typed water purification particle that median particle diameter therein is 5 μm, the quality of hud typed water purification particle and polypropylene fibre
Than for 8:2, nano-aluminum hydroxide and polyether modified silicon oil, nano-aluminum hydroxide and polyacrylic quality are contained in polypropylene fibre
Than for 3:35；Polyether modified silicon oil is 2 with polyacrylic mass ratio:40, the kernel of hud typed water purification particle is diatomite, shell
Contain rare earth metal cerium in the ormolu layer for being 5nm for thickness, ormolu layer, the mass ratio of cerium and ormolu is 8:
100。
The preparation of this water process composite filtering material comprises the following steps：
1) diatomite is immersed in 95 DEG C of copper, zinc, the ce metal source aqueous solution, isolated solid phase, dried to constant weight
Afterwards 780 DEG C in hydrogen atmosphere；6h is calcined, water purification particle is obtained；
2) polypropylene is put into melt-blown non-woven former, melt is 215 DEG C of meltblown beam spinneret orifice through temperature
Spray, a diameter of 70 μm of spinneret orifice, the filament of ejection enters after being stretched under 245 DEG C of stream of hot air effect receives dress
Put, the high velocity, hot air stream includes step 1) obtained by water purification particle, filament to be composite is gathered on the reception device
Obtained after shape, completely cooling.
This composite filtering material grammes per square metre is 140g/m2, porosity is 89%, and elongation at break is 980%, and fracture strength is
60MPa, wear rate is 0.14%, and product is to ammonia nitrogen in sewage removal rate up to 97%, COD removal rate up to 99.2%, and heavy metal is removed
Rate is gone up to 98%.
Embodiment 5
A kind of water process composite filtering material, including the tridimensional network being made up of a diameter of 65 μm of polypropylene fibre,
And disperse the hud typed water purification particle that median particle diameter therein is 3 μm, the quality of hud typed water purification particle and polypropylene fibre
Than for 7:1.5, nano-aluminum hydroxide and polyether modified silicon oil, nano-aluminum hydroxide and polyacrylic matter are contained in polypropylene fibre
Amount is than being 2:37；Polyether modified silicon oil is 3 with polyacrylic mass ratio:38, the kernel of hud typed water purification particle is porous oxidation
Contain rare earth metal scandium, cerium, lanthanum in aluminium, the ormolu layer that shell is thickness 3nm, ormolu layer, scandium, cerium, lanthanum and copper zinc are closed
The mass ratio of gold is 1:2:2:100.
The preparation of this water process composite filtering material comprises the following steps：
1) Woelm Alumina is immersed in 90 DEG C of copper, zinc, scandium, cerium, the lanthanum source aqueous solution, isolated solid phase,
Dry to constant weight 750 DEG C in hydrogen atmosphere；4h is calcined, water purification particle is obtained；
2) polypropylene is put into melt-blown non-woven former, melt is 210 DEG C of meltblown beam spinneret orifice through temperature
Spray, a diameter of 65 μm of spinneret orifice.The filament of ejection enters after being stretched under 240 DEG C of stream of hot air effect receives dress
Put, the high velocity, hot air stream includes step 1) obtained by water purification particle, filament to be composite is gathered on the reception device
Obtained after shape, completely cooling.
This composite filtering material grammes per square metre is 100g/m2, porosity is 89%, and elongation at break is 1200%, and fracture strength is
63MPa, wear rate is 0.12%, and product is to ammonia nitrogen in sewage removal rate up to 99.5%, COD removal rate up to 99.5%, heavy metal
Removal rate is up to 99.6%.
The preferred embodiment of the present invention described in detail above, but the present invention is not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, can carry out a variety of simple variants to technical scheme, these
Simple variant belongs to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of water process composite filtering material, it is characterised in that the composite filtering material includes the three-dimensional being made up of polypropylene fibre
Network structure, and the hud typed water purification particle being scattered in the tridimensional network；
The hud typed water purification particle includes kernel and shell, and the kernel includes porous particle, and the shell is closed including copper zinc
Layer gold.
2. composite filtering material as claimed in claim 1, it is characterised in that the porous particle include activated carbon, Woelm Alumina,
In diatomite and porous ceramics any one or at least two combination, preferably activated carbon, Woelm Alumina and diatomaceous
Any one or at least two combination.
3. composite filtering material as claimed in claim 1 or 2, it is characterised in that the ormolu layer includes ormolu and dilute
Earth metal；
Preferably, the mass ratio of the rare earth metal and ormolu is (0.5~15):100, preferably (2~8):100.
4. the composite filtering material as described in any one of claims 1 to 3, it is characterised in that the thickness of the ormolu layer for 1~
10nm, preferably 1~5nm.
5. the composite filtering material as described in any one of Claims 1 to 4, it is characterised in that the intermediate value of the hud typed water purification particle
Particle diameter is 1~20 μm, preferably 1~5 μm.
6. the composite filtering material as described in any one of Claims 1 to 5, it is characterised in that a diameter of the 50 of the polypropylene fibre
~100 μm, preferably 60~70 μm.
7. the composite filtering material as described in any one of claim 1~6, it is characterised in that also include receiving in the polypropylene fibre
Rice aluminium hydroxide and/or polyether modified silicon oil；
Preferably, nano-aluminum hydroxide and polyacrylic mass ratio are (1~5) in the polypropylene fibre:(30~50), preferably
(2~3):(35~40)；
Preferably, polyether modified silicon oil and polyacrylic mass ratio are (1~5) in the polypropylene fibre:(30~50), preferably
(2~3):(35~40).
8. the composite filtering material as described in any one of claim 1~7, it is characterised in that the hud typed water purification particle with it is described
The mass ratio of polypropylene fibre is (3~10):(1~4), preferably (5~8):(1~2).
9. the preparation method of composite filtering material as described in any one of claim 1~8, it is characterised in that comprise the following steps：
(1) porous particle is immersed in 80~100 DEG C of copper, the zinc source metal aqueous solution, isolated solid phase, dried extremely
After constant weight in reducing atmosphere 600~780 DEG C calcining 2~10h, obtain water purification particle；
(2) polypropylene is put into melt-blown non-woven former, melt is 200~220 DEG C of meltblown beam spinneret through temperature
Hole sprays, and the filament of ejection enters reception device, the high speed heat after being stretched under 230~250 DEG C of stream of hot air effect
Air stream includes the water purification particle obtained by step (1), and filament to be composite assembles shaping on the reception device, completely after cooling
Obtain.
10. the preparation method of composite filtering material as claimed in claim 9, it is characterised in that step (1) described calcining heat is 700
~780 DEG C；
Preferably, step (1) described calcination time is 3~6h；
Preferably, a diameter of 50~100 μm of step (2) described spinneret orifice, preferably 60~70 μm.
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| CN201710499319.7A CN107185309A (en) | 2017-06-27 | 2017-06-27 | A kind of water process composite filtering material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109893910A (en) * | 2017-12-08 | 2019-06-18 | 江苏赛尔亚环保科技有限公司 | A kind of deodorizing device high-performance filtrate |
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| CN101029433A (en) * | 2007-03-06 | 2007-09-05 | 天津工业大学 | Production and producer for functional modified microgranular melt-jetting non-woven cloth |
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Application publication date: 20170922 |