CN111233070A - Water treatment filter material and preparation method thereof - Google Patents
Water treatment filter material and preparation method thereof Download PDFInfo
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- CN111233070A CN111233070A CN202010051696.6A CN202010051696A CN111233070A CN 111233070 A CN111233070 A CN 111233070A CN 202010051696 A CN202010051696 A CN 202010051696A CN 111233070 A CN111233070 A CN 111233070A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000000463 material Substances 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 71
- 238000002156 mixing Methods 0.000 claims abstract description 48
- 239000000203 mixture Substances 0.000 claims abstract description 42
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000003756 stirring Methods 0.000 claims abstract description 25
- 239000000945 filler Substances 0.000 claims abstract description 20
- 239000002893 slag Substances 0.000 claims abstract description 20
- 239000010457 zeolite Substances 0.000 claims abstract description 20
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 19
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 abstract description 5
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 4
- 229910052785 arsenic Inorganic materials 0.000 abstract description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 3
- 239000008394 flocculating agent Substances 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 23
- 238000001179 sorption measurement Methods 0.000 description 16
- 238000001816 cooling Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000004806 packaging method and process Methods 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 7
- 238000007689 inspection Methods 0.000 description 7
- 238000004643 material aging Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 238000011001 backwashing Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical group N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910001579 aluminosilicate mineral Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 125000003636 chemical group Chemical group 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 239000001257 hydrogen Chemical group 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- -1 silicon (aluminum) oxygen Chemical compound 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052717 sulfur Chemical group 0.000 description 1
- 239000011593 sulfur Chemical group 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to a water treatment filter material and a preparation method thereof. The water treatment filter material comprises the following raw materials in parts by weight: 25-35 parts of zeolite, 25-35 parts of activated carbon, 20-30 parts of heavy slag, 8-12 parts of manganese dioxide and 3-7 parts of filler. The preparation method comprises the following steps: crushing activated carbon and zeolite, and stirring and mixing to obtain a mixture a; sequentially adding manganese dioxide and heavy slag into the mixture a in the step, heating, and stirring and mixing to obtain a mixture b; and (4) mixing the filler with the mixture b, and fully mixing under a heating condition to obtain the water treatment filter material. The water treatment filter material has the advantages of large number of internal micropores, high porosity, large development surface area, no need of adding any chemical reagent and flocculating agent, effective removal of suspended matters, solid particle impurities, harmful elements such as manganese, arsenic and the like in water, and long service life; the preparation method is simple and convenient to operate, the process is easy to control, and large-scale production is facilitated.
Description
Technical Field
The invention belongs to the field of water treatment, and particularly relates to a water treatment filter material and a preparation method thereof.
Background
At present, the traditional domestic water treatment method is to treat water by adopting quartz sand, activated carbon, manganese sand and other materials, the process is complex, an active filter membrane needs to be cultured, and when the manganese content is high or iron and manganese coexist, the maturation period of the active filter membrane is as long as months or even more than half a year. And the quartz sand and manganese sand filter material is a particle stone without pores inside, can only be adsorbed on the surface, and can not remove color and smell of water.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a water treatment filter material and a preparation method thereof. The water treatment filter material has the advantages of large number of internal micropores, high porosity, large development surface area, no need of adding any chemical reagent and flocculating agent, effective removal of suspended matters, solid particle impurities, harmful elements such as manganese, arsenic and the like in water, and long service life; the preparation method is simple and convenient to operate, the process is easy to control, and large-scale production is facilitated.
The scheme of the invention is to provide a water treatment filter material, which comprises the following raw materials in parts by weight: 25-35 parts of zeolite, 25-35 parts of activated carbon, 20-30 parts of heavy slag, 8-12 parts of manganese dioxide and 3-7 parts of filler.
Preferably, the water treatment filter material comprises the following raw materials in parts by weight: 30 parts of zeolite, 30 parts of activated carbon, 25 parts of heavy slag, 10 parts of manganese dioxide and 5 parts of filler.
Preferably, the diameter of the micropores of the activated carbon is 10-30 nm, and the surface area of the micropores is 800-1000 m2/g。
Preferably, the surface area of the filler is 320-380 m2(ii) in terms of/g. And the filler contains elements such as silicon, iron, manganese, carbon and the like.
Based on the same technical concept, the invention also provides a preparation method of the water treatment filter material, which comprises the following steps:
(1) crushing activated carbon and zeolite, and stirring and mixing to obtain a mixture a;
(2) sequentially adding manganese dioxide and heavy slag into the mixture a obtained in the step (1), heating, and stirring and mixing to obtain a mixture b;
(3) and (4) mixing the filler with the mixture b, and fully mixing under a heating condition to obtain the water treatment filter material.
Preferably, in the step (1), the rotation speed of stirring is 150-200 r/min, and the mixing time is 30-40 min.
Preferably, in the step (2), the heating temperature is 140-160 ℃, the stirring speed is 180-220 r/min, and the mixing time is 20-30 min.
Preferably, in the step (2), oxygen is introduced during the stirring and mixing process.
Preferably, in the step (3), the heating temperature is 110-120 ℃, and the mixing time is 40-50 min.
Preferably, the water treatment filter material is further packaged and put in storage after being inspected to be qualified.
For a better understanding of the present invention, the raw materials used in the present invention will now be further explained.
Zeolite: is an aqueous alkali or alkaline earth metal aluminosilicate mineral and has a framework structure, namely, the molecules are connected together in a lattice like a scaffold in a popular expression, and a plurality of cavities are formed in the middle. Zeolites can be used for cation exchange by percolation of water, in which sodium ions in the composition are exchanged with calcium, magnesium, etc. ions in aqueous solutions, and are used industrially to soften hard water. The crystal structure of zeolite is a three-dimensional lattice formed by connecting silicon (aluminum) oxygen tetrahedrons, and the lattice has cavities and channels with different sizes and has great openness. The cavities of different sizes present in the lattice can absorb or filter molecules of other substances of different sizes.
Activated carbon: the active carbon is prepared by pyrolyzing and activating carbon-containing raw materials such as wood, coal, petroleum coke and the like, has a developed pore structure, a larger specific surface area and abundant surface chemical groups, and has stronger specific adsorption capacity.
The specific surface area of micropores in the activated carbon accounts for more than 95% of the specific surface area of the activated carbon, and the adsorption capacity of the activated carbon is determined to a great extent; the specific surface area of the mesopores accounts for about 5 percent of the specific surface area of the activated carbon, and the mesopores are adsorption sites of larger molecules which cannot enter the micropores, and capillary condensation is generated under higher relative pressure.
The inside of the active carbon has a crystal structure and a pore structure, and the surface of the active carbon also has a certain chemical structure. The adsorption performance of activated carbon depends not only on the physical (pore) structure of the activated carbon but also on the chemical structure of the activated carbon surface. In the preparation process of the activated carbon, the chemical bonds at the edges of the aromatic sheet formed in the carbonization stage are broken to form edge carbon atoms with unpaired electrons. These edge carbon atoms have unsaturated chemical bonds and can react with heteroatoms such as oxygen, hydrogen, nitrogen and sulfur to form different surface groups, the presence of which undoubtedly affects the adsorption properties of the activated carbon.
The active carbon adsorption means that the solid surface of the active carbon is used for adsorbing one or more substances in water so as to achieve the aim of purifying the water. The adsorption capacity of activated carbon is related to the pore size and structure of the activated carbon. Generally, the smaller the particle, the faster the pore diffusion rate, and the stronger the adsorption capacity of the activated carbon.
Adsorption capacity and adsorption rate are the main indicators for the adsorption process. The magnitude of the adsorption capacity is measured by the amount of adsorption, and the adsorption rate is the amount adsorbed by the adsorbent per unit weight per unit time. In water treatment, the adsorption rate determines the contact time of the adsorbent with the sewage.
Heavy slag: the blast furnace reduces iron oxide into molten slag generated in the process of reducing iron oxide into metallic iron at the high temperature (1400-1600 ℃) during iron making, and the hard stone powder formed by naturally and slowly cooling the molten slag in the air has a rich microporous structure.
Manganese dioxide: manganese dioxide has good adsorption and degradation effects on environmental pollutants, and can be used for removing TOC and COD in sewage.
The invention has the beneficial effects that:
1. the water treatment filter material is a touch type filter material prepared based on zeolite, activated carbon, heavy slag, manganese dioxide and filler, has a large number of internal micropores, high porosity and huge developed surface area, and can effectively remove suspended matters, solid particle impurities, manganese, arsenic and other harmful elements in water without adding any chemical reagent and flocculating agent; and the detection shows that the backwashing is easy, the water consumption for backwashing is low, the backwashing can be repeatedly used through repeated cleaning, and the service life is longer.
2. The preparation method of the water treatment filter material is simple and convenient to operate, easy to control in process and beneficial to large-scale production.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1
The embodiment provides a preparation method of a water treatment filter material, which comprises the following steps:
(1) taking 25kg of micropore with diameter of 10nm and surface area of 800m2Mixing crushed activated carbon/g and zeolite 25kg for 30min at 150r/min to obtain mixture a;
(2) sequentially adding 8kg of manganese dioxide and 20kg of heavy slag into the mixture a obtained in the step (1), heating the temperature to 140 ℃, introducing oxygen, and stirring and mixing for 20min under the condition of 180r/min to obtain a mixture b;
(3) and (3) mixing 3kg of filler with the mixture b, heating to 110 ℃, fully mixing for 40min, naturally cooling to obtain the water treatment filter material, and packaging and warehousing after the water treatment filter material is qualified.
Example 2
The embodiment provides a preparation method of a water treatment filter material, which comprises the following steps:
(1) taking 35kg of micropore with diameter of 30nm and surface area of 1000m2The preparation method comprises the following steps of (1) crushing activated carbon per gram and 35kg of zeolite, and stirring and mixing for 40min under the condition of 200r/min to obtain a mixture a;
(2) sequentially adding 12kg of manganese dioxide and 30kg of heavy slag into the mixture a obtained in the step (1), heating the temperature to 160 ℃, introducing oxygen, and stirring and mixing for 30min under the condition of 220r/min to obtain a mixture b;
(3) and (3) mixing 7kg of filler with the mixture b, heating to 120 ℃, fully mixing for 50min, naturally cooling to obtain the water treatment filter material, and packaging and warehousing after the water treatment filter material is qualified through inspection.
Example 3
The embodiment provides a preparation method of a water treatment filter material, which comprises the following steps:
(1) taking 30kg of micropores with diameter of 20nm and surface area of 900m2The preparation method comprises the following steps of (1) crushing activated carbon per gram and 30kg of zeolite, and stirring and mixing for 40min under the condition of 200r/min to obtain a mixture a;
(2) sequentially adding 10kg of manganese dioxide and 25kg of heavy slag into the mixture a obtained in the step (1), heating the temperature to 150 ℃, introducing oxygen, and stirring and mixing for 25min under the condition of 200r/min to obtain a mixture b;
(3) and (3) mixing 5kg of filler with the mixture b, heating to 115 ℃, fully mixing for 45min, naturally cooling to obtain the water treatment filter material, and packaging and warehousing after the water treatment filter material is qualified through inspection.
Comparative example 1
The comparative example provides a preparation method of a water treatment filter material, comprising the following steps:
(1) crushing 30kg of zeolite, sequentially adding 10kg of manganese dioxide and 25kg of heavy slag, heating to 150 ℃, introducing oxygen, and stirring and mixing for 25min under the condition of 200r/min to obtain a mixture;
(2) mixing 5kg of filler with the mixture, heating to 115 ℃, fully mixing for 45min, naturally cooling to obtain the water treatment filter material, packaging after inspection and qualification, and warehousing.
Comparative example 1 is different from example 3 in that comparative example 1 does not contain activated carbon and the other operations are the same as example 3.
Comparative example 2
The comparative example provides a preparation method of a water treatment filter material, comprising the following steps:
(1) taking 30kg of micropores with diameter of 20nm and surface area of 900m2Activated carbon per g, and adding 10kg of manganese dioxide and 25kg of heavy slag in this order, heating to 150 ℃ and introducing oxygen, in strips at 200r/minStirring and mixing for 25min under the condition of stirring to obtain a mixture;
(2) mixing 5kg of filler with the mixture, heating to 115 ℃, fully mixing for 45min, naturally cooling to obtain the water treatment filter material, packaging after inspection and qualification, and warehousing.
Comparative example 2 differs from example 3 in that comparative example 2 does not contain zeolite and the other operations are the same as example 3.
Comparative example 3
The comparative example provides a preparation method of a water treatment filter material, comprising the following steps:
(1) taking 30kg of micropores with diameter of 20nm and surface area of 900m2The preparation method comprises the following steps of (1) crushing activated carbon per gram and 30kg of zeolite, and stirring and mixing for 40min under the condition of 200r/min to obtain a mixture a;
(2) adding 10kg of manganese dioxide into the mixture a obtained in the step (1), heating the mixture to 150 ℃, introducing oxygen, and stirring and mixing the mixture for 25min under the condition of 200r/min to obtain a mixture b;
(3) and (3) mixing 5kg of filler with the mixture b, heating to 115 ℃, fully mixing for 45min, naturally cooling to obtain the water treatment filter material, and packaging and warehousing after the water treatment filter material is qualified through inspection.
Comparative example 3 is different from example 3 in that comparative example 3 does not contain heavy slag and the other operations are the same as example 3.
Comparative example 4
The embodiment provides a preparation method of a water treatment filter material, which comprises the following steps:
(1) taking 30kg of micropores with diameter of 20nm and surface area of 900m2The preparation method comprises the following steps of (1) crushing activated carbon per gram and 30kg of zeolite, and stirring and mixing for 40min under the condition of 200r/min to obtain a mixture a;
(2) adding 25kg of heavy slag into the mixture a obtained in the step (1), heating the mixture to 150 ℃, introducing oxygen, and stirring and mixing for 25min under the condition of 200r/min to obtain a mixture b;
(3) and (3) mixing 5kg of filler with the mixture b, heating to 115 ℃, fully mixing for 45min, naturally cooling to obtain the water treatment filter material, and packaging and warehousing after the water treatment filter material is qualified through inspection.
Comparative example 4 is different from example 3 in that comparative example 4 does not contain manganese dioxide and the other operations are the same as example 3.
Comparative example 5
The embodiment provides a preparation method of a water treatment filter material, which comprises the following steps:
(1) taking 30kg of micropores with diameter of 20nm and surface area of 900m2The preparation method comprises the following steps of (1) crushing activated carbon per gram and 30kg of zeolite, and stirring and mixing for 40min under the condition of 200r/min to obtain a mixture;
(2) adding 25kg of heavy slag into the mixture obtained in the step (1), heating to 150 ℃, introducing oxygen, stirring and mixing for 25min under the condition of 200r/min, naturally cooling to obtain a water treatment filter material, and packaging and warehousing after the water treatment filter material is qualified through inspection.
Comparative example 5 differs from example 3 in that comparative example 5 does not contain a filler and the other operations are the same as example 3.
Now, the performance and effect of the water treatment filter materials obtained in examples 1 to 3 and comparative examples 1 to 5 and the commercial filter materials were tested, and the test results are shown in table 1.
Wherein, the quantity of backwash water and the water and electricity saving rate are compared by taking the filter material sold in the market at present as a reference.
TABLE 1 test results
And (4) conclusion:
in terms of porosity index, the water treatment filter materials obtained in examples 1 to 3 had porosity higher than that of comparative examples and commercially available filter materials; in terms of backwash strength index, the backwash strength of the water treatment filter materials obtained in examples 1 to 3 is lower than that of comparative examples and filter materials sold in the market, and backwash is easier; in terms of backwash water quantity index, the backwash water consumption of the water treatment filter material obtained in the embodiment 1-3 is obviously lower than that of a comparative example and a filter material sold in the market, and the backwash water is more water-saving; in terms of the water and electricity saving rate index, the water treatment filter materials obtained in the examples 1 to 3 are significantly water and electricity saving compared with comparative examples and commercially available filter materials.
The detection results of the embodiments 1 to 3 show that the water treatment filter material obtained in the embodiment 3 has the best comprehensive performance, and the performance is the best when the operation parameters and the dosage are intermediate values.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A water treatment filter material is characterized by comprising the following raw materials in parts by weight: 25-35 parts of zeolite, 25-35 parts of activated carbon, 20-30 parts of heavy slag, 8-12 parts of manganese dioxide and 3-7 parts of filler.
2. The water treatment filter material of claim 1, comprising the following raw materials in parts by weight: 30 parts of zeolite, 30 parts of activated carbon, 25 parts of heavy slag, 10 parts of manganese dioxide and 5 parts of filler.
3. The water treatment filter material according to claim 1 or 2, wherein the diameter of the micropores of the activated carbon is 10 to 30nm, and the surface area is 800 to 1000m2/g。
4. The water treatment filter material as claimed in claim 1 or 2, wherein the surface area of the filler is 320-380 m2/g。
5. The preparation method of any one of the water treatment filter materials of claims 1 to 4, which is characterized by comprising the following steps:
(1) crushing activated carbon and zeolite, and stirring and mixing to obtain a mixture a;
(2) sequentially adding manganese dioxide and heavy slag into the mixture a obtained in the step (1), heating, and stirring and mixing to obtain a mixture b;
(3) and (4) mixing the filler with the mixture b, and fully mixing under a heating condition to obtain the water treatment filter material.
6. The preparation method of the water treatment filter material according to claim 5, wherein in the step (1), the stirring speed is 150-200 r/min, and the mixing time is 30-40 min.
7. The preparation method of the water treatment filter material according to claim 5, wherein in the step (2), the heating temperature is 140-160 ℃, the stirring rotation speed is 180-220 r/min, and the mixing time is 20-30 min.
8. The preparation method of the water treatment filter material as claimed in claim 5, wherein in the step (2), oxygen is introduced during the stirring and mixing process.
9. The preparation method of the water treatment filter material according to claim 5, wherein in the step (3), the heating temperature is 110-120 ℃, and the mixing time is 40-50 min.
10. The preparation method of the water treatment filter material according to claim 5, wherein the water treatment filter material is further packaged and warehoused after being inspected to be qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010051696.6A CN111233070A (en) | 2020-01-17 | 2020-01-17 | Water treatment filter material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010051696.6A CN111233070A (en) | 2020-01-17 | 2020-01-17 | Water treatment filter material and preparation method thereof |
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