CN111714963A - Fiber filter material applied to cyclone filter and preparation method thereof - Google Patents
Fiber filter material applied to cyclone filter and preparation method thereof Download PDFInfo
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- CN111714963A CN111714963A CN202010746664.8A CN202010746664A CN111714963A CN 111714963 A CN111714963 A CN 111714963A CN 202010746664 A CN202010746664 A CN 202010746664A CN 111714963 A CN111714963 A CN 111714963A
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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
- B01D39/02—Loose filtering material, e.g. loose fibres
- B01D39/04—Organic material, e.g. cellulose, cotton
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- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
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Abstract
The invention discloses a fiber filter material applied to a cyclone filter and a preparation method thereof, wherein the fiber filter material comprises the following raw materials in percentage by mass: benzoic acid, H3BTC, copper nitrate, fiber balls, acetic acid, ethanol and a modifier, wherein the ratio of benzoic acid: h3 BTC: copper nitrate: the mass ratio of the fiber balls to the modifier is 1: 1. According to the fiber filter material applied to the cyclone filter and the preparation method thereof, the modified fiber ball filtering and adsorbing material can filter and adsorb SS suspended matters and larger particulate matters in nuclear wastewater, and can achieve a good removing effect on nuclide uranium in the nuclear wastewater, so that the subsequent step of specially arranging an ion exchange column to remove nuclides is omitted, the nuclear wastewater treatment process is simplified, and the nuclear wastewater treatment cost is reduced.
Description
Technical Field
The invention relates to the technical field of filtering and adsorbing materials, in particular to a fiber filtering material applied to a cyclone filter and a preparation method thereof.
Background
At present, a fiber ball filter is needed in a wastewater treatment process, the purpose of the fiber ball filter is to filter and remove large-particle impurities, SS suspended matters and the like in wastewater, most of the internal filter materials adopt fiber ball filter materials, but the existing fiber ball filter materials have single functions and only play a role in filtering. In the nuclear wastewater treatment process, after the fiber ball filter is used for filtering, the nuclide uranium in the nuclear wastewater still needs to be removed by adopting an ion exchange column, and the use of the ion exchange resin has great defects, such as aging, poisoning, difficult subsequent treatment, great secondary pollution and the like.
In recent years, MOFs (metal organic frameworks) are porous network structure materials which are concerned about and have development prospects, are formed by metal ions or clusters and organic ligands through coordination or self-assembly, have the characteristics of large specific surface area, high porosity, easy adjustment and modification of structural functions and the like, are widely applied, and can effectively remove various pollutants in wastewater. HST is a typical MOFs compound material, has good chemical, water and thermal stability, and is generally prepared by reacting 1,3, 5-trimesic acid (H3BTC) serving as a ligand with copper salt.
Disclosure of Invention
The invention aims to provide a fiber filter material applied to a cyclone filter and a preparation method thereof, the modified fiber ball filtering and adsorbing material not only can filter and adsorb SS suspended matters and larger particulate matters in nuclear wastewater, but also can achieve a better removal effect on nuclide uranium in the nuclear wastewater, so that the subsequent step of specially arranging an ion exchange column to remove nuclide is omitted, the nuclear wastewater treatment process is simplified, and the nuclear wastewater treatment cost is reduced.
In order to achieve the purpose, the invention provides a fiber filter material applied to a cyclone filter, which comprises the following raw materials in percentage by mass: benzoic acid, H3BTC, copper nitrate, fiber balls, acetic acid, ethanol and a modifier, wherein the ratio of benzoic acid: h3 BTC: copper nitrate: the mass ratio of the fiber balls to the modifier is 1: 1.
Preferably, the modifier is prepared from polyvinyl alcohol, methacrylic acid, sodium perfluorocarboxylate, sulfate, polyhydroxy fatty acid amide, polyethylene glycol and deionized water in a mass ratio of 1: 2-5: 1-2: 2-4: 0.5-3: 1-4:1-2: 14.
Preferably, the concentration of the acetic acid is 30%.
A preparation method of a fiber filter material applied to a cyclone filter comprises the following steps:
(1) modified fiber balls: soaking the fiber balls in an acetic acid solution with the mass concentration of 30% for heating treatment for 1 hour, wherein the heating treatment temperature is 70 ℃, cleaning the treated fiber balls with water, putting the cleaned fiber balls into a modifier solution for heating impregnation for 2 hours, and the heating temperature is 50 ℃ to obtain modified fiber balls;
(2) and carrying out hydrothermal reaction on the mixture of benzoic acid and H3BTC, copper nitrate and modified fiber balls, and filtering, washing and drying the product to obtain the fiber filter material applied to the cyclone filter.
Preferably, the preparation of the modifier solution in the step (1) is specifically as follows: polyvinyl alcohol, methacrylic acid, sodium perfluorocarboxylate, sulfate, polyhydroxy fatty amide, polyethylene glycol and deionized water are mixed according to a mass ratio of 1: 2-5: 1-2: 2-4: 0.5-3: 1-4:1-2:14, and preparing into modifier solution.
Preferably, the benzoic acid and the H3BTC used in the step (2) are dissolved in ethanol to obtain a mixture of benzoic acid and H3 BTC.
Preferably, the temperature of the hydrothermal reaction in the step (2) is 100-120 ℃, and the time is 24-36 h.
Therefore, the fiber filter material applied to the cyclone filter and the preparation method thereof are adopted, the modified fiber ball filtering and adsorbing material can filter and adsorb SS suspended matters and larger particulate matters in nuclear wastewater, and can achieve a good removing effect on nuclide uranium in the nuclear wastewater, so that the subsequent step of specially arranging an ion exchange column to remove nuclides is omitted, the nuclear wastewater treatment process is simplified, the nuclear wastewater treatment cost is reduced, and meanwhile, the obtained fiber filter material has hydrophilic and oleophobic effects.
The technical solution of the present invention is further described in detail by the following examples.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
The invention provides a fiber filter material applied to a cyclone filter, which comprises the following raw materials in percentage by mass: benzoic acid, H3BTC, copper nitrate, fiber balls, acetic acid, ethanol and a modifier, wherein the ratio of benzoic acid: h3 BTC: copper nitrate: the mass ratio of the fiber balls to the modifier is 1: 1. The modifier is prepared from polyvinyl alcohol, methacrylic acid, sodium perfluorocarboxylate, sulfate, polyhydroxy fatty acid amide, polyethylene glycol and deionized water in a mass ratio of 1: 2-5: 1-2: 2-4: 0.5-3: 1-4:1-2: 14. The concentration of acetic acid is 30%.
A preparation method of a fiber filter material applied to a cyclone filter comprises the following steps:
(1) modified fiber balls: soaking the fiber balls in an acetic acid solution with the mass concentration of 30% for heating treatment for 1 hour, wherein the heating treatment temperature is 70 ℃, washing the treated fiber balls with water, putting the fiber balls into a modifier solution for heating impregnation for 2 hours, and the heating temperature is 50 ℃, so as to obtain the modified fiber balls. The preparation of the modifier solution comprises the following steps: polyvinyl alcohol, methacrylic acid, sodium perfluorocarboxylate, sulfate, polyhydroxy fatty amide, polyethylene glycol and deionized water are mixed according to a mass ratio of 1: 2-5: 1-2: 2-4: 0.5-3: 1-4:1-2:14, and preparing into modifier solution.
(2) And carrying out hydrothermal reaction on the mixture of the benzoic acid and the H3BTC, copper nitrate and the modified fiber balls at the temperature of 100-120 ℃ for 24-36H, filtering, washing and drying the product to obtain the fiber filter material applied to the cyclone filter, wherein the benzoic acid and the H3BTC are dissolved in ethanol to obtain the mixture of the benzoic acid and the H3 BTC.
The fiber ball is dipped in an acetic acid solution with the mass concentration of 30 percent, and the purpose is to remove impurities in the fiber ball, so that a modifier prepared from polyvinyl alcohol, methacrylic acid, sodium perfluorocarboxylate, sulfate, polyhydroxy fatty acid amide, polyethylene glycol and deionized water can more easily introduce hydrophilic oleophobic groups on the surface of the fiber ball. The fiber balls after the heat treatment of the acid liquor are washed by water, and the purpose is to clean the acid liquor on the surface and avoid the influence on the modification effect caused by the reaction with the components in the modifier. And (2) after the fiber balls are washed by water, putting the fiber balls into a modifier solution, heating and soaking for 2-10 hours, wherein the heating and soaking time is too long, the time is too long and meaningless because the groups are completely connected on the fiber balls, and if the heating and soaking time is too short, the fiber balls are not completely modified, so that the modified fiber balls do not have good hydrophilic and oleophobic properties, and the modification fails. The hydrophilic and oleophobic groups are introduced to the surface of the fiber ball under the action of a modifier prepared from polyvinyl alcohol, methacrylic acid, sodium perfluorocarboxylate, sulfate, polyhydroxy fatty acid amide, polyethylene glycol and deionized water, so that the fiber ball filter material has hydrophilic and oleophobic properties. When the oily sewage is treated, a layer of water film is formed on the surface of the fiber balls to separate oil from the fiber balls, so that oil-water separation is realized. Because of the water film, the oil on the surface of the filter material can be well cleaned during backwashing, and the oil stain removal rate is higher after multiple backwashing cycles. The polyvinyl alcohol is white flocculent solid or flaky solid, is nontoxic and tasteless, is the most widely used synthetic water-soluble polymer, and has excellent mechanical property and adjustable surface activity.
Perfluorocarboxylic acidsSodium is derived from carboxylic acids (RCO)2H) The hydrogen atoms in R are replaced by fluorine, and the sodium perfluorocarboxylate can be used as a fluorine-containing surfactant or an intermediate of a fluorine-containing hydrophobic agent and an oleophobic agent. The polydiallyldimethylammonium chloride is a chemical substance with a molecular formula of (C)8H16NCl)n。
The embodiment of the invention provides a fiber filter material applied to a cyclone filter, which comprises the following raw materials in percentage by mass: benzoic acid, H3BTC, copper nitrate, fiber balls, acetic acid, ethanol and a modifier, wherein the ratio of benzoic acid: h3 BTC: copper nitrate: the mass ratio of the fiber balls to the modifier is 1: 1. The modifier is prepared from polyvinyl alcohol, methacrylic acid, sodium perfluorocarboxylate, sulfate, polyhydroxy fatty acid amide, polyethylene glycol and deionized water in a mass ratio of 1: 2: :2: 3: 3:2: 14. The concentration of acetic acid is 30%.
A preparation method of a fiber filter material applied to a cyclone filter comprises the following steps:
(1) modified fiber balls: soaking the fiber balls in an acetic acid solution with the mass concentration of 30% for heating treatment for 1 hour, wherein the heating treatment temperature is 70 ℃, washing the treated fiber balls with water, putting the fiber balls into a modifier solution for heating impregnation for 2 hours, and the heating temperature is 50 ℃, so as to obtain the modified fiber balls. The preparation of the modifier solution comprises the following steps: polyvinyl alcohol, methacrylic acid, sodium perfluorocarboxylate, sulfate, polyhydroxy fatty amide, polyethylene glycol and deionized water are mixed according to a mass ratio of 1: 2: :2: 3: mixing the mixture in a ratio of 3:2:14 to prepare a modifier solution.
(2) And carrying out hydrothermal reaction on the mixture of the benzoic acid and the H3BTC, copper nitrate and the modified fiber balls at 100 ℃ for 24 hours, filtering, washing and drying the product to obtain a fiber filter material applied to a cyclone filter, wherein the benzoic acid and the H3BTC are dissolved in ethanol to obtain the mixture of the benzoic acid and the H3 BTC.
Therefore, the fiber filter material applied to the cyclone filter and the preparation method thereof are adopted, the modified fiber ball filtering and adsorbing material can filter and adsorb SS suspended matters and larger particulate matters in the nuclear wastewater, and can achieve a good removing effect on the nuclide uranium in the nuclear wastewater, so that the subsequent step of specially arranging an ion exchange column to remove the nuclide is omitted, the nuclear wastewater treatment process is simplified, and the nuclear wastewater treatment cost is reduced.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (7)
1. The fiber filter material applied to the cyclone filter is characterized by comprising the following raw materials in percentage by mass: benzoic acid, H3BTC, copper nitrate, fiber balls, acetic acid, ethanol and a modifier, wherein the ratio of benzoic acid: h3 BTC: copper nitrate: the mass ratio of the fiber balls to the modifier is 1: 1.
2. The fiber filter material applied to the cyclone filter as claimed in claim 1, wherein: the modifier is prepared from polyvinyl alcohol, methacrylic acid, sodium perfluorocarboxylate, sulfate, polyhydroxy fatty acid amide, polyethylene glycol and deionized water in a mass ratio of 1: 2-5: 1-2: 2-4: 0.5-3: 1-4:1-2: 14.
3. The fiber filter material applied to the cyclone filter as claimed in claim 1, wherein: the concentration of the acetic acid is 30%.
4. A method of making a fibrous filter material for use in a cyclone filter according to any of claims 1-3 comprising the steps of:
(1) modified fiber balls: soaking the fiber balls in an acetic acid solution with the mass concentration of 30% for heating treatment for 1 hour, wherein the heating treatment temperature is 70 ℃, cleaning the treated fiber balls with water, putting the cleaned fiber balls into a modifier solution for heating impregnation for 2 hours, and the heating temperature is 50 ℃ to obtain modified fiber balls;
(2) and carrying out hydrothermal reaction on the mixture of benzoic acid and H3BTC, copper nitrate and modified fiber balls, and filtering, washing and drying the product to obtain the fiber filter material applied to the cyclone filter.
5. The method for preparing the fiber filter material applied to the cyclone filter, according to claim 4, wherein the preparation of the modifier solution in the step (1) is specifically as follows: polyvinyl alcohol, methacrylic acid, sodium perfluorocarboxylate, sulfate, polyhydroxy fatty amide, polyethylene glycol and deionized water are mixed according to a mass ratio of 1: 2-5: 1-2: 2-4: 0.5-3: 1-4:1-2:14, and preparing into modifier solution.
6. The method for preparing the fiber filter material applied to the cyclone filter, according to claim 4, is characterized in that: the benzoic acid and the H3BTC used in the step (2) are dissolved in ethanol to obtain a mixture of the benzoic acid and the H3 BTC.
7. The method for preparing the fiber filter material applied to the cyclone filter, according to claim 4, is characterized in that: the temperature of the hydrothermal reaction in the step (2) is 100-120 ℃, and the time is 24-36 h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010746664.8A CN111714963A (en) | 2020-07-29 | 2020-07-29 | Fiber filter material applied to cyclone filter and preparation method thereof |
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| CN202010746664.8A CN111714963A (en) | 2020-07-29 | 2020-07-29 | Fiber filter material applied to cyclone filter and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115845493A (en) * | 2023-03-03 | 2023-03-28 | 江苏恒顺醋业股份有限公司 | Impurity filtering device for brewing vinegar |
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| CN104645943A (en) * | 2014-12-26 | 2015-05-27 | 张红梅 | Method for preparing renewable anti-bacteria fiber for adsorbing heavy metal motes |
| CN105056626A (en) * | 2015-08-31 | 2015-11-18 | 曾金华 | Hydrophilic oleophobic filter material and preparation method thereof |
| CN109224638A (en) * | 2018-10-29 | 2019-01-18 | 成都新柯力化工科技有限公司 | A kind of sewage treatment hydrophilic and oleophobic modified fibrous globule filtering material and preparation method |
| CN110182923A (en) * | 2019-06-13 | 2019-08-30 | 朱柳宾 | A kind of functional filter material and preparation method thereof |
| CN110787778A (en) * | 2019-11-01 | 2020-02-14 | 中国工程物理研究院材料研究所 | Modified fiber ball filtering and adsorbing material and preparation method and application thereof |
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2020
- 2020-07-29 CN CN202010746664.8A patent/CN111714963A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645943A (en) * | 2014-12-26 | 2015-05-27 | 张红梅 | Method for preparing renewable anti-bacteria fiber for adsorbing heavy metal motes |
| CN105056626A (en) * | 2015-08-31 | 2015-11-18 | 曾金华 | Hydrophilic oleophobic filter material and preparation method thereof |
| CN109224638A (en) * | 2018-10-29 | 2019-01-18 | 成都新柯力化工科技有限公司 | A kind of sewage treatment hydrophilic and oleophobic modified fibrous globule filtering material and preparation method |
| CN110182923A (en) * | 2019-06-13 | 2019-08-30 | 朱柳宾 | A kind of functional filter material and preparation method thereof |
| CN110787778A (en) * | 2019-11-01 | 2020-02-14 | 中国工程物理研究院材料研究所 | Modified fiber ball filtering and adsorbing material and preparation method and application thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115845493A (en) * | 2023-03-03 | 2023-03-28 | 江苏恒顺醋业股份有限公司 | Impurity filtering device for brewing vinegar |
| CN115845493B (en) * | 2023-03-03 | 2023-05-05 | 江苏恒顺醋业股份有限公司 | Impurity filtering device for brewing vinegar |
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Application publication date: 20200929 |