CN113019341A - Filtering material for water purification and preparation method thereof - Google Patents

Filtering material for water purification and preparation method thereof Download PDF

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Publication number
CN113019341A
CN113019341A CN202110254973.8A CN202110254973A CN113019341A CN 113019341 A CN113019341 A CN 113019341A CN 202110254973 A CN202110254973 A CN 202110254973A CN 113019341 A CN113019341 A CN 113019341A
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parts
filter material
weight
water purification
fine powder
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曾淑华
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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
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
    • 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
    • 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
    • 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
    • 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
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
    • 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
    • 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
    • B01J20/261—Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
    • 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
    • B01J20/262—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
    • 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

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (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 discloses a filtering material for water purification and a preparation method thereof, relating to the field of water purification filtering materials; in order to improve the water quality; the filtering material comprises 10-16 parts of quartz sand, 8-12 parts of manganese sand, 14-18 parts of ceramsite, 16-20 parts of carborundum, 12-15 parts of garnet, 10-14 parts of kaolinite, 10-16 parts of rare earth porcelain sand, 14-18 parts of activated alumina, 15-19 parts of silica micro powder, 24-36 parts of a shell filtering material and 18-26 parts of organic polymer solid micro powder; the preparation method of the filter material comprises the following steps: preparing all the raw materials in parts by weight; and (3) placing the kaolinite and the garnet into a ball mill for ball milling, and sieving by a 40-60-mesh sieve. The filtering material prepared by the invention can further improve the water purification effect by adding garnet, kaolinite and the like, and ensures that the purified water is rich in abundant trace elements and is suitable for people to drink.

Description

Filtering material for water purification and preparation method thereof
Technical Field
The invention relates to the technical field of water purification filter materials, in particular to a filter material for water purification and a preparation method thereof.
Background
The filtering material is a porous object which can enable fluid in the filtering slurry to pass through and the solid-phase particles contained in the filtering slurry to be intercepted so as to achieve the aim of solid-liquid separation; the water purifier is mainly used in the field of water purification and is a key component of the water purifier; the filtering capacity of the filtering material directly influences the water purification quality of the water purifier, although the filtering material of most water purifiers at present can meet certain filtering requirements, in the filtering process, harmful substances to human bodies are only filtered, the water body cannot be made to be rich in beneficial microelements of the human bodies, and the using requirements of people cannot be met.
Through search, the patent with Chinese patent application number CN201910253765.9 discloses a water purification filter material and a manufacturing process thereof, the water purification filter material is manufactured by the following processing processes, (1) impurities are firstly screened: screening and impurity removing are carried out on raw materials of walnut shells, apricot shells and coconut shells by using a screening and impurity removing machine, and (2) crushing is carried out: primarily crushing walnut shells, apricot shells and coconut shells after impurity removal by using a circular crusher until the particle size is 10-30 meshes; (3) after screening again, grinding the mixture by a middle-grade grinder until the particle size is 50-100 meshes; (4) carrying out micro-powder processing treatment on the sorted walnut shells, the apricot shells and the coconut shells by a refiner, and processing the walnut shells, the apricot shells and the coconut shells into micro powder with the particle size of 100 meshes-200 meshes; (5) the water purification filter material in the patent can meet certain filter requirements, but in the filtering process, only harmful substances to human bodies are filtered, so that the water body cannot be made to be rich in trace elements beneficial to the human bodies, and the use requirements of people cannot be met.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a filter material for water purification and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a filtering material for water purification comprises 10-16 parts of quartz sand, 8-12 parts of manganese sand, 14-18 parts of ceramsite, 16-20 parts of carborundum, 12-15 parts of garnet, 10-14 parts of kaolinite, 10-16 parts of rare earth porcelain sand, 14-18 parts of activated alumina, 15-19 parts of silica micropowder, 24-36 parts of a shell filtering material and 18-26 parts of organic polymer solid micropowder.
Preferably: the shell filter material comprises 12-16 parts of coconut shells, 8-14 parts of pecan shells and 4-6 parts of macadamia nut shells.
Preferably: the organic polymer solid micro powder comprises 10-14 parts by weight of polyolefin micro powder or polyamide micro powder, 6-8 parts by weight of methacrylate homopolymer micro powder and 2-4 parts by weight of polyester micro powder.
Preferably: the raw material components of the filter material for water purification are further defined as follows: 12-14 parts of quartz sand, 10-12 parts of manganese sand, 15-16 parts of ceramsite, 16-18 parts of carborundum, 12-13 parts of garnet, 10-12 parts of kaolinite, 12-14 parts of rare earth porcelain sand, 15-16 parts of activated alumina, 16-18 parts of silica micro powder, 26-32 parts of a shell filter material and 20-24 parts of organic polymer solid micro powder.
Preferably: the shell filter material comprises 13-15 parts of coconut shells, 9-12 parts of pecan shells and 4-5 parts of macadamia nut shells.
Preferably: the organic polymer solid micro powder comprises 11-13 parts by weight of polyolefin micro powder or polyamide micro powder, 6-7 parts by weight of methacrylate homopolymer micro powder and 3-4 parts by weight of polyester micro powder.
A preparation method of a filter material for purifying water comprises the following steps:
s1: preparing all the raw materials in parts by weight;
s2: placing kaolinite and garnet into a ball mill for ball milling, and sieving by a 40-60-mesh sieve;
s3: calcining the screened kaolinite and garnet at high temperature for 20-45 min, and controlling the temperature at 1000-1140 ℃;
s4: crushing the fruit shell filter material in a crusher, sieving the crushed fruit shell filter material with a 60-80-mesh sieve, and performing secondary treatment on the fruit shell filter material;
s5: mixing the raw materials, placing the mixture in a coarse grinding machine for coarse grinding, and performing coarse grinding until the coarse grinding reaches 100-140 meshes;
s6: then placing the raw material after coarse grinding into a refiner for fine grinding;
s7: and (4) sieving the finely ground material with a 240-mesh sieve to obtain the filtering material for water purification.
Preferably: in the step S3, the high-temperature calcination time is further controlled to be 25-35 min; the temperature is further controlled to be 1060-1080 ℃.
Preferably: in the step S5, the rotating speed of a rough grinding machine is controlled to be 300-360 r/min, and the rough grinding time is controlled to be 40-80 min; in the step S6, the rotating speed of the refiner is controlled to be 600-800 r/min, and the coarse grinding time is controlled to be 20-40 min.
Preferably: in the step S4, the secondary treatment of the shell filter material specifically comprises: and (3) sequentially carbonizing and activating the crushed filter material, and then treating the filter material by using superheated steam for later use.
The invention has the beneficial effects that:
1. the filtering material prepared by the invention can further improve the water purification effect by adding garnet, kaolinite and the like, and ensures that the purified water is rich in abundant trace elements and is suitable for people to drink.
2. The filtering material prepared by the invention has high mechanical strength and strong hygroscopicity, particularly has strong adsorbability to fluorine in water and ensures the purification effect by adding the activated alumina and the like.
3. The filter material prepared by the invention is added with the coconut shells, the pecan shells and the macadamia shells which are carbonized and activated and then treated by superheated steam, and has the advantages of developed pore structures, large specific surface area, strong adsorption capacity, high mechanical strength, good chemical stability, durability and the like.
Drawings
Fig. 1 is a flow chart of a preparation method of a filter material for water purification according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1:
the filtering material for water purification comprises, by weight, 10-16 parts of quartz sand, 8-12 parts of manganese sand, 14-18 parts of ceramsite, 16-20 parts of carborundum, 12-15 parts of garnet, 10-14 parts of kaolinite, 10-16 parts of rare earth porcelain sand, 14-18 parts of activated alumina, 15-19 parts of silica micropowder, 24-36 parts of a shell filter material and 18-26 parts of organic polymer solid micropowder.
The shell filter material comprises 12-16 parts of coconut shells, 8-14 parts of pecan shells and 4-6 parts of macadamia nut shells by weight.
The organic polymer solid micro powder comprises 10-14 parts of polyolefin micro powder or polyamide micro powder, 6-8 parts of methacrylate homopolymer micro powder and 2-4 parts of polyester micro powder in parts by weight.
Wherein the raw material components of the filter material for water purification are further defined as: 12-14 parts of quartz sand, 10-12 parts of manganese sand, 15-16 parts of ceramsite, 16-18 parts of carborundum, 12-13 parts of garnet, 10-12 parts of kaolinite, 12-14 parts of rare earth porcelain sand, 15-16 parts of activated alumina, 16-18 parts of silica micro powder, 26-32 parts of a shell filter material and 20-24 parts of organic polymer solid micro powder.
The shell filter material comprises 13-15 parts of coconut shells, 9-12 parts of pecan shells and 4-5 parts of macadamia nut shells by weight.
The organic polymer solid micro powder comprises 11-13 parts by weight of polyolefin micro powder or polyamide micro powder, 6-7 parts by weight of methacrylate homopolymer micro powder and 3-4 parts by weight of polyester micro powder.
Example 2:
a preparation method of a filtering material for water purification sequentially comprises the following steps:
s1: preparing all the raw materials in parts by weight;
s2: placing kaolinite and garnet into a ball mill for ball milling, and sieving by a 40-60-mesh sieve;
s3: calcining the screened kaolinite and garnet at high temperature for 20-45 min, and controlling the temperature at 1000-1140 ℃;
s4: crushing the fruit shell filter material in a crusher, sieving the crushed fruit shell filter material with a 60-80-mesh sieve, performing secondary treatment on the fruit shell filter material, and performing secondary treatment on the fruit shell filter material;
s5: mixing the raw materials, placing the mixture in a coarse grinding machine for coarse grinding, and performing coarse grinding until the coarse grinding reaches 100-140 meshes;
s6: then placing the raw material after coarse grinding into a refiner for fine grinding;
s7: and (4) sieving the finely ground material with a 240-mesh sieve to obtain the filtering material for water purification.
In the step S3, the high-temperature calcination time is further controlled to be 25-35 min; the temperature is further controlled to be 1060-1080 ℃.
In the step S5, the rotating speed of a rough grinding machine is controlled to be 300-360 r/min, and the rough grinding time is controlled to be 40-80 min; in the step S6, the rotating speed of the refiner is controlled to be 600-800 r/min, and the coarse grinding time is controlled to be 20-40 min.
In the step S4, the secondary treatment of the shell filter material specifically includes: and (3) sequentially carbonizing and activating the crushed filter material, and then treating the filter material by using superheated steam for later use.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. The filtering material for water purification is characterized by comprising 10-16 parts of quartz sand, 8-12 parts of manganese sand, 14-18 parts of ceramsite, 16-20 parts of carborundum, 12-15 parts of garnet, 10-14 parts of kaolinite, 10-16 parts of rare earth porcelain sand, 14-18 parts of activated alumina, 15-19 parts of silica micropowder, 24-36 parts of a shell filtering material and 18-26 parts of organic polymer solid micropowder.
2. The water purification filter material as claimed in claim 1, wherein the nutshell filter material comprises 12 to 16 parts by weight of coconut shells, 8 to 14 parts by weight of pecan shells and 4 to 6 parts by weight of macadamia shells.
3. The water purification filter material as claimed in claim 1, wherein the organic polymer fine solid powder comprises 10 to 14 parts by weight of polyolefin fine powder or polyamide fine powder, 6 to 8 parts by weight of methacrylate homopolymer fine powder, and 2 to 4 parts by weight of polyester fine powder.
4. The water purifying filter material as set forth in claim 1, further defined as: 12-14 parts of quartz sand, 10-12 parts of manganese sand, 15-16 parts of ceramsite, 16-18 parts of carborundum, 12-13 parts of garnet, 10-12 parts of kaolinite, 12-14 parts of rare earth porcelain sand, 15-16 parts of activated alumina, 16-18 parts of silica micro powder, 26-32 parts of a shell filter material and 20-24 parts of organic polymer solid micro powder.
5. The water purification filter material as claimed in claim 4, wherein the nutshell filter material comprises 13 to 15 parts by weight of coconut shells, 9 to 12 parts by weight of pecan shells and 4 to 5 parts by weight of macadamia shells.
6. The water purification filter material as claimed in claim 4, wherein the organic polymer solid fine powder comprises 11 to 13 parts by weight of polyolefin fine powder or polyamide fine powder, 6 to 7 parts by weight of methacrylate homopolymer fine powder, and 3 to 4 parts by weight of polyester fine powder.
7. A method for preparing a filter material for water purification according to any one of claims 1 to 6, comprising the steps of:
s1: preparing all the raw materials in parts by weight;
s2: placing kaolinite and garnet into a ball mill for ball milling, and sieving by a 40-60-mesh sieve;
s3: calcining the screened kaolinite and garnet at high temperature for 20-45 min, and controlling the temperature at 1000-1140 ℃;
s4: crushing the fruit shell filter material in a crusher, sieving the crushed fruit shell filter material with a 60-80-mesh sieve, and performing secondary treatment on the fruit shell filter material;
s5: mixing the raw materials, placing the mixture in a coarse grinding machine for coarse grinding, and performing coarse grinding until the coarse grinding reaches 100-140 meshes;
s6: then placing the raw material after coarse grinding into a refiner for fine grinding;
s7: and (4) sieving the finely ground material with a 240-mesh sieve to obtain the filtering material for water purification.
8. The method for preparing a filter material for water purification according to claim 7, wherein in the step S3, the high-temperature calcination time is further controlled to be 25-35 min; the temperature is further controlled to be 1060-1080 ℃.
9. The method of claim 8, wherein in the step S5, the rotation speed of the rough grinding machine is controlled to be 300-360 r/min, and the rough grinding time is controlled to be 40-80 min; in the step S6, the rotating speed of the refiner is controlled to be 600-800 r/min, and the coarse grinding time is controlled to be 20-40 min.
10. The method for preparing a filter material for water purification according to claim 9, wherein in the step S4, the secondary treatment of the nutshell filter material is specifically as follows: and (3) sequentially carbonizing and activating the crushed filter material, and then treating the filter material by using superheated steam for later use.
CN202110254973.8A 2021-03-09 2021-03-09 Filtering material for water purification and preparation method thereof Withdrawn CN113019341A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115367832A (en) * 2022-07-11 2022-11-22 中南大学 Application of calcium iron garnet As As (III) adsorption material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115367832A (en) * 2022-07-11 2022-11-22 中南大学 Application of calcium iron garnet As As (III) adsorption material
CN115367832B (en) * 2022-07-11 2023-09-01 中南大学 Application of lime garnet As As (III) adsorption material

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