CN112028592B - Method for manufacturing activated carbon rod by adopting inorganic bonding material - Google Patents
Method for manufacturing activated carbon rod by adopting inorganic bonding material Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/70—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00793—Uses not provided for elsewhere in C04B2111/00 as filters or diaphragms
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Abstract
The invention discloses a method for manufacturing an activated carbon rod by adopting an inorganic bonding material, which comprises the following steps: 1) stirring and mixing 1-3 parts by weight of water glass, 0.2-1 part by weight of auxiliary agent and 10-20 parts by weight of cement, controlling the water-cement ratio to be 0.8-1.5, obtaining a first material, adding 60-80 parts by weight of activated carbon powder and 5-10 parts by weight of zeolite powder into the first material, and uniformly stirring to obtain a second material; 2) and feeding the second material into an extruder for extrusion molding, and maintaining a molded carbon rod to obtain the activated carbon rod. The activated carbon rod prepared by the method has the characteristics of high porosity, high removal efficiency of residual chlorine and heavy metals, excellent antibacterial performance and the like.
Description
Technical Field
The invention relates to the field of activated carbon rods. More particularly, the present invention relates to a method for manufacturing an activated carbon rod using an inorganic binder material.
Background
Activated carbon rod filter elements have excellent adsorption properties, and it is becoming more and more common to use activated carbon rods as filter elements in water purifiers and air purification. However, the carbon rod in the existing activated carbon filter element is mostly formed by extrusion of powdered activated carbon and organic binder, and the organic binder is expensive, so that the price of the activated carbon rod is high, and difficulty is brought to the popularization of the water purifier.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.
Still another object of the present invention is to provide a method for manufacturing an activated carbon rod using an inorganic binder, which can bind carbon powder using an inorganic binder and contribute to reduction of production cost of the activated carbon rod.
To achieve these objects and other advantages and in accordance with the purpose of the invention, a method for manufacturing an activated carbon rod using an inorganic bonding material, comprising the steps of:
1) stirring and mixing 1-3 parts by weight of water glass, 0.2-1 part by weight of auxiliary agent and 10-20 parts by weight of cement, controlling the water-cement ratio to be 0.8-1.5, obtaining a first material, adding 60-80 parts by weight of activated carbon powder and 5-10 parts by weight of zeolite powder into the first material, and uniformly stirring to obtain a second material;
2) and feeding the second material into an extruder for extrusion molding, and maintaining the molded carbon rod to obtain the activated carbon rod.
Preferably, the curing comprises natural curing or steam curing, wherein the natural curing time is 28-30 days, and the steam curing time is 4-5 hours.
Preferably, 1-3 parts by weight of water glass, 0.2-1 part by weight of auxiliary agent and 10-20 parts by weight of cement are stirred and mixed, the water-cement ratio is controlled to be 1-2, a third material is obtained, and a layer of the third material is brushed on the outer side of the activated carbon rod before natural curing. By coating the third material, the strength and water resistance of the carbon rod can be improved.
Preferably, the third material also comprises 5-10 parts by weight of tourmaline and 1-3 parts by weight of montmorillonite. On one hand, the far infrared rays generated by the tourmaline have the function of changing water from macromolecular groups into active micromolecules which are easier to absorb, permeate and diffuse and have strong dissolving power; on the other hand, the montmorillonite can generate a certain amount of hydroxyl free radicals, which is beneficial to killing organic matters and bacteria in the water body.
Preferably, the auxiliary agent is one or more of citric acid, disodium hydrogen phosphate, potassium sodium tartrate and aluminum chloride.
Preferably, the particle size of the activated carbon powder is 0.04-0.2mm, and the modulus of the water glass is 3.0-3.4.
Preferably, the first material is also added with 0.5 weight part of antibacterial oyster shell powder, and the preparation method of the antibacterial oyster shell powder comprises the following steps:
a. cleaning dirt on the surface of the oyster shell by using tap water, drying, carrying out superfine grinding to obtain first oyster shell powder, soaking the first oyster shell powder in an acetic acid solution with the mass fraction of 5-10% for 24 hours, taking out, and drying to obtain second oyster shell powder;
b. dissolving 10-20 parts by weight of chitosan into 200 parts by weight of 1% acetic acid solution, adding 0.5-1 part by weight of silver nitrate, and stirring for 3-5 hours to obtain a chitosan-silver mixed solution;
c. adding 100 parts by weight of the second oyster shell powder into the chitosan-silver mixed solution, stirring for 24 hours under the condition of 0.1-0.5MPa, centrifuging, collecting precipitate to obtain third oyster shell powder, soaking the third oyster shell powder for 2-3 times by using distilled water, wherein the soaking time is 12 hours each time, centrifuging, collecting precipitate to obtain fourth oyster shell powder;
d. and drying the fourth oyster shell powder at 40-50 ℃, and crushing by using a low-temperature crusher to obtain the antibacterial oyster shell powder.
Preferably, a layer of fourth material is further coated on the outer side of the activated carbon rod, and the preparation method of the fourth material comprises the following steps:
step one, suspending 10-20 parts by weight of second oyster shell powder in 50 parts by weight of distilled water, adding 0.5-1 part by weight of bilirubin, stirring for 48 hours, centrifuging, and collecting precipitate to obtain fifth oyster shell powder;
and step two, stirring and mixing 1-3 parts by weight of water glass, 0.2-1 part by weight of auxiliary agent, 1-3 parts by weight of fifth oyster shell powder and 10-20 parts by weight of cement, and controlling the water-cement ratio to be 1-2 to obtain a fourth material.
The invention at least comprises the following beneficial effects:
the method utilizes cement as a bonding agent, so that the production cost of the activated carbon rod is greatly reduced, the porosity of the prepared activated carbon rod is more than 50%, the compressive strength is more than 3.0MPa, and the water permeability is more than 200L/min; according to the invention, by adding water glass, the strength and the water resistance of the prepared carbon rod are improved; the zeolite is added to effectively adsorb heavy metal elements in water, so that the removal rate of heavy metal reaches more than 99.9%, and the activated carbon can well adsorb residual chlorine and organic matters in water, and the removal rates of residual chlorine and organic matters in water reach more than 99.9%.
Secondly, the far infrared rays generated by the tourmaline have the function of changing water from macromolecular groups into active micromolecules which are easier to absorb, permeate and diffuse and have strong dissolving power; on the other hand, the montmorillonite can generate a certain amount of hydroxyl free radicals, which is beneficial to decomposing organic matters in the water body and killing bacteria.
And the oyster shell contains microelements such as copper and the like, and the microelements have a certain antibacterial function, and the carbon rod can be added to enable the prepared carbon rod to have a certain sterilization function.
Fourth, the fourth material is coated on the outer side of the carbon rod, and hydroxyl free radicals with strong oxidizing property are generated under the action of copper ions released by oyster shells and bilirubin, so that bacteria in a water body can be effectively killed.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Detailed Description
The present invention is described in further detail below to enable those skilled in the art to practice the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Example 1
A method for manufacturing an activated carbon rod by adopting an inorganic bonding material comprises the following steps:
1) 1 kg of water glass, 0.2 kg of auxiliary agent and 10 kg of cement are stirred and mixed, the water-cement ratio is controlled to be 0.8, a first material is obtained, 60 kg of activated carbon powder and 5 kg of zeolite powder are added into the first material and stirred uniformly, and a second material is obtained;
2) and feeding the second material into an extruder for extrusion molding, and maintaining the molded carbon rod to obtain the activated carbon rod.
The carbon rod prepared by the embodiment passes standard marking tests, the removal rate of residual chlorine reaches over 99.9, and the removal rates of heavy metals of lead, cadmium, mercury, chromium and arsenic reach over 99.9%.
Example 2
1) Stirring and mixing 3 kg of water glass, 1 kg of auxiliary agent and 20 kg of cement, controlling the water-cement ratio to be 1.5 to obtain a first material, adding 80 kg of activated carbon powder and 10 kg of zeolite powder into the first material, and uniformly stirring to obtain a second material;
2) and feeding the second material into an extruder for extrusion molding, and performing steam curing on the molded carbon rod for 4 hours to obtain the activated carbon rod.
The carbon rod prepared by the embodiment passes standard marking tests, the removal rate of residual chlorine reaches over 99.9, and the removal rates of heavy metals of lead, cadmium, mercury, chromium and arsenic reach over 99.9%.
Example 3
1) Stirring and mixing 2 kg of water glass, 0.6 kg of auxiliary agent and 15 kg of cement, controlling the water-cement ratio to be 1.1 to obtain a first material, adding 70 kg of activated carbon powder and 8 kg of zeolite powder into the first material, and uniformly stirring to obtain a second material;
2) sending the second material into an extruder for extrusion molding, brushing a layer of the third material on the activated carbon rod before naturally curing the molded carbon rod, and performing steam curing for 5 hours to obtain the activated carbon rod; wherein, 1 kg of water glass, 0.2 kg of auxiliary agent and 20 kg of cement are stirred and mixed, the water-cement ratio is controlled to be 1, and a third material is obtained.
The carbon rod prepared by the embodiment passes standard marking tests, the removal rate of residual chlorine reaches over 99.9, and the removal rates of heavy metals of lead, cadmium, mercury, chromium and arsenic reach over 99.9%.
Example 4
1) Stirring and mixing 3 kg of water glass, 0.2 kg of auxiliary agent and 10 kg of cement, controlling the water-cement ratio to be 0.8 to obtain a first material, adding 65 kg of activated carbon powder and 8 kg of zeolite powder into the first material, and uniformly stirring to obtain a second material;
2) feeding the second material into an extruder for extrusion molding, naturally curing a molded carbon rod, brushing a layer of the third material on the activated carbon rod, and performing steam curing for 5 hours to obtain the activated carbon rod; wherein, 5 kg of tourmaline, 3 kg of montmorillonite, 1.5 kg of water glass, 0.8 kg of auxiliary agent and 16 kg of cement are stirred and mixed, the water-cement ratio is controlled to be 1.5, and a third material is obtained.
On one hand, the far infrared rays generated by the tourmaline have the function of changing water from macromolecular groups into active micromolecules which are easier to absorb, permeate and diffuse and have strong dissolving power; on the other hand, the montmorillonite can generate a certain amount of hydroxyl free radicals, which is beneficial to killing organic matters and bacteria in the water body.
The carbon rod prepared by the embodiment passes standard marking tests, the removal rate of residual chlorine reaches over 99.9, and the removal rates of heavy metals of lead, cadmium, mercury, chromium and arsenic reach over 99.9%.
Example 5
1) 1.6 kg of water glass, 0.8 kg of auxiliary agent and 18 kg of cement are stirred and mixed, the water-cement ratio is controlled to be 1.2, a first material is obtained, 75 kg of activated carbon powder and 6 kg of zeolite powder are added into the first material, and the first material and the activated carbon powder are uniformly stirred to obtain a second material;
2) sending the second material into an extruder for extrusion molding, brushing a layer of the third material on the activated carbon rod before naturally curing the molded carbon rod, and naturally curing for 30 days to obtain the activated carbon rod; wherein, 8 kg of tourmaline, 2 kg of montmorillonite, 2 kg of water glass, 0.6 kg of disodium hydrogen phosphate and 16 kg of cement are stirred and mixed, the water-cement ratio is controlled to be 1.5, and a third material is obtained.
The carbon rod prepared by the embodiment passes standard marking tests, the removal rate of residual chlorine reaches over 99.9, and the removal rates of heavy metals of lead, cadmium, mercury, chromium and arsenic reach over 99.9%.
Example 6
1) Stirring and mixing 3 kg of water glass, 0.2 kg of auxiliary agent and 10 kg of cement, controlling the water-cement ratio to be 1.5 to obtain a first material, adding 80 kg of activated carbon powder and 10 kg of zeolite powder into the first material, uniformly stirring, wherein the particle size of the activated carbon powder is 0.04mm, and the modulus of the water glass is 3.4 to obtain a second material;
2) sending the second material into an extruder for extrusion molding, brushing a layer of the third material on the activated carbon rod before naturally curing the molded carbon rod, and naturally curing for 29 days to obtain the activated carbon rod; wherein, 5 kg of tourmaline, 1 kg of montmorillonite, 1 kg of water glass, 1 kg of citric acid and 20 kg of cement are stirred and mixed, the water-cement ratio is controlled to be 2, and a third material is obtained.
Example 7
1) Stirring and mixing 2 kg of water glass, 0.6 kg of auxiliary agent and 15 kg of cement, controlling the water-cement ratio to be 1.5 to obtain a first material, adding 60 kg of activated carbon powder and 5 kg of zeolite powder into the first material, uniformly stirring, wherein the particle size of the activated carbon powder is 0.2mm, and the modulus of the water glass is 3.4 to obtain a second material;
2) sending the second material into an extruder for extrusion molding, brushing a layer of the third material on the activated carbon rod before naturally curing the molded carbon rod, and naturally curing for 28 days to obtain the activated carbon rod; wherein, 5 kg of tourmaline, 3 kg of montmorillonite, 3 kg of water glass, 1 kg of sodium potassium tartrate and 20 kg of cement are stirred and mixed, the water-cement ratio is controlled to be 2, and a third material is obtained.
The carbon rod prepared by the embodiment passes standard marking tests, the removal rate of residual chlorine reaches over 99.9, and the removal rates of heavy metals of lead, cadmium, mercury, chromium and arsenic reach over 99.9%.
Example 8
1) 1 kg of water glass, 0.2 kg of auxiliary agent and 10 kg of cement are stirred and mixed, the water-cement ratio is controlled to be 0.8, a first material is obtained, 60 kg of activated carbon powder and 5-10 kg of zeolite powder are added into the first material and stirred uniformly, the particle size of the activated carbon powder is 0.2mm, the modulus of the water glass is 3.4, and a second material is obtained; wherein, the first material is also added with 0.5 kg of antibacterial oyster shell powder, and the preparation method of the antibacterial oyster shell powder comprises the following steps:
a. cleaning dirt on the surface of the oyster shell by using tap water, drying, carrying out superfine grinding to obtain first oyster shell powder, soaking 200 kg of the first oyster shell powder in 500 kg of acetic acid solution with the mass fraction of 10% for 24 hours, taking out, and drying to obtain second oyster shell powder;
b. dissolving 10 kg of chitosan into 200 kg of acetic acid solution with the mass fraction of 1%, adding 0.5 kg of silver nitrate, and stirring for 3 hours to obtain a chitosan-silver mixed solution;
c. adding 100 kg of the second oyster shell powder into the chitosan-silver mixed solution, stirring for 24 hours under the condition of 0.1MPa, centrifuging, collecting a precipitate to obtain a third oyster shell powder, soaking the third oyster shell powder for 2-3 times by using distilled water, wherein the soaking time is 12 hours each time, centrifuging, collecting the precipitate to obtain a fourth oyster shell powder;
d. drying the fourth oyster shell powder at 40 ℃, and crushing by using a low-temperature crusher to obtain the antibacterial oyster shell powder;
2) sending the second material into an extruder for extrusion molding, brushing a layer of the third material on the outer side of the activated carbon rod before naturally curing the molded carbon rod, and naturally curing for 30 days to obtain the activated carbon rod; wherein, 5 kg of tourmaline, 1 kg of montmorillonite, 1 kg of water glass, 0.2 kg of sodium potassium tartrate and 10 kg of cement are stirred and mixed, the water-cement ratio is controlled to be 1, and a third material is obtained.
The carbon rod prepared by the embodiment passes standard marking tests, the removal rate of residual chlorine reaches over 99.9, and the removal rates of heavy metals of lead, cadmium, mercury, chromium and arsenic reach over 99.9%.
Example 9
1) Stirring and mixing 3 kg of water glass, 1 kg of auxiliary agent and 20 kg of cement, controlling the water-cement ratio to be 1.5 to obtain a first material, adding 60 kg of activated carbon powder and 5 kg of zeolite powder into the first material, uniformly stirring, wherein the particle size of the activated carbon powder is 0.04mm, the modulus of the water glass is 3.0, and obtaining a second material; wherein, the first material is also added with 0.5 kg of antibacterial oyster shell powder, and the preparation method of the antibacterial oyster shell powder comprises the following steps:
a. cleaning dirt on the surface of the oyster shell by using tap water, drying, carrying out superfine grinding to obtain first oyster shell powder, soaking 200 kg of the first oyster shell powder in 500 kg of acetic acid solution with the mass fraction of 5% for 24 hours, taking out, and drying to obtain second oyster shell powder;
b. dissolving 10 kg of chitosan into 200 kg of acetic acid solution with the mass fraction of 1%, adding 1 kg of silver nitrate, and stirring for 3 hours to obtain a chitosan-silver mixed solution;
c. adding 100 kg of the second oyster shell powder into the chitosan-silver mixed solution, stirring for 24 hours under the condition of 0.1MPa, centrifuging, collecting a precipitate to obtain a third oyster shell powder, soaking the third oyster shell powder for 2 times by using distilled water, wherein the soaking time is 12 hours each time, centrifuging, collecting the precipitate to obtain a fourth oyster shell powder;
d. drying the fourth oyster shell powder at 40 ℃, and crushing by using a low-temperature crusher to obtain the antibacterial oyster shell powder;
2) sending the second material into an extruder for extrusion molding, brushing a layer of the fourth material on the outer side of the activated carbon rod before naturally curing the molded carbon rod, coating a layer of the third material after the fourth material is solidified, and naturally curing for 28 days to obtain the activated carbon rod;
wherein, 10 kg of tourmaline, 3 kg of montmorillonite, 3 kg of water glass, 1 kg of sodium potassium tartrate and 20 kg of cement are stirred and mixed, the water-cement ratio is controlled to be 1, and a third material is obtained;
the preparation method of the fourth material comprises the following steps:
step one, suspending 10 kg of the second oyster shell powder in 50 kg of distilled water, adding 1 kg of bilirubin, stirring for 48 hours, centrifuging, and collecting precipitates to obtain fifth oyster shell powder;
and step two, stirring and mixing 1 kg of water glass, 0.2 kg of auxiliary agent, 1 kg of fifth oyster shell powder and 20 kg of cement, and controlling the water-cement ratio to be 1 to obtain a fourth material.
The carbon rod prepared by the embodiment passes standard marking tests, the removal rate of residual chlorine reaches over 99.9, and the removal rates of heavy metals of lead, cadmium, mercury, chromium and arsenic reach over 99.9%.
Example 10
1) 1 kg of water glass, 0.2 kg of auxiliary agent and 10 kg of cement are stirred and mixed, the water-cement ratio is controlled to be 0.8, a first material is obtained, 60 kg of activated carbon powder and 5 kg of zeolite powder are added into the first material and stirred uniformly, the particle size of the activated carbon powder is 0.1mm, the modulus of the water glass is 3.0, and a second material is obtained; wherein, the first material is also added with 0.5 kg of antibacterial oyster shell powder, and the preparation method of the antibacterial oyster shell powder comprises the following steps:
a. cleaning dirt on the surface of the oyster shell by using tap water, drying, carrying out superfine grinding to obtain first oyster shell powder, soaking 200 kg of the first oyster shell powder in 500 kg of acetic acid solution with the mass fraction of 8% for 24 hours, taking out, and drying to obtain second oyster shell powder;
b. dissolving 15 kg of chitosan into 200 kg of acetic acid solution with the mass fraction of 1%, adding 0.8 kg of silver nitrate, and stirring for 5 hours to obtain a chitosan-silver mixed solution;
c. adding 150 kg of the second oyster shell powder into the chitosan-silver mixed solution, stirring for 24 hours under the condition of 0.5MPa, centrifuging, collecting a precipitate to obtain a third oyster shell powder, soaking the third oyster shell powder for 3 times by using distilled water, wherein the soaking time is 12 hours each time, centrifuging, collecting the precipitate to obtain a fourth oyster shell powder;
d. drying the fourth oyster shell powder at 50 ℃, and crushing by using a low-temperature crusher to obtain the antibacterial oyster shell powder;
2) sending the second material into an extruder for extrusion molding, brushing a layer of the fourth material on the outer side of the activated carbon rod before naturally curing the molded carbon rod, and naturally curing for 30 days to obtain the activated carbon rod;
the preparation method of the fourth material comprises the following steps:
step one, suspending 10 kg of the second oyster shell powder in 50 kg of distilled water, adding 0.5 kg of bilirubin, stirring for 48 hours, centrifuging, and collecting precipitate to obtain fifth oyster shell powder;
and step two, stirring and mixing 1 kg of water glass, 0.2 kg of auxiliary agent, 1 kg of fifth oyster shell powder and 10 kg of cement, and controlling the water-cement ratio to be 1 to obtain a fourth material.
The carbon rod prepared by the embodiment passes standard marking tests, the removal rate of residual chlorine reaches over 99.9, and the removal rates of heavy metals of lead, cadmium, mercury, chromium and arsenic reach over 99.9%.
Test No.)
The activated carbon rods prepared in examples 1 to 10 were immersed in pure water for 5 days, and the results of measuring the number of colonies in water before and after immersion are shown in Table 1, and the results of measuring the increase amounts of copper, silver and zinc in water are shown in Table 2.
TABLE 1
As can be seen from the results in Table 1, the activated carbon rods prepared by the method have a good antibacterial function.
TABLE 2
The results in Table 2 show that the dissolution of copper, silver and zinc is less after the antibacterial oyster shell powder is added.
Test No. two
A tap water filtration test was performed using the carbon rod prepared in example 10, distilled water was introduced from the outside and discharged from the inside at a water flow rate of 1L/min, and the bilirubin content of the discharged water was measured every day, and the results showed that bilirubin was not detected in the water discharged within 10 days.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details described herein, without departing from the general concept as defined by the appended claims and their equivalents.
Claims (6)
1. A method for manufacturing an activated carbon rod by adopting an inorganic bonding material is characterized by comprising the following steps:
1) stirring and mixing 1-3 parts by weight of water glass, 0.2-1 part by weight of auxiliary agent and 10-20 parts by weight of cement, controlling the water-cement ratio to be 0.8-1.5, obtaining a first material, adding 60-80 parts by weight of activated carbon powder and 5-10 parts by weight of zeolite powder into the first material, and uniformly stirring to obtain a second material; wherein the particle size of the activated carbon powder is 0.04-0.2mm, and the modulus of the water glass is 3.0-3.4;
2) feeding the second material into an extruder for extrusion molding, and maintaining a molded carbon rod to obtain the activated carbon rod; the curing comprises natural curing or steam curing, wherein the natural curing time is 28-30 days, and the steam curing time is 4-5 hours.
2. The method of claim 1, wherein the third material is obtained by mixing 1-3 parts by weight of water glass, 0.2-1 part by weight of an auxiliary agent and 10-20 parts by weight of cement with stirring, the water-cement ratio is controlled to be 1-2, and a layer of the third material is coated on the outer side of the activated carbon rod before autotrophic curing.
3. The method for manufacturing an activated carbon rod using an inorganic binding material as claimed in claim 2, wherein the third material further comprises 5-10 parts by weight of tourmaline and 1-3 parts by weight of montmorillonite.
4. The method for manufacturing the activated carbon rod by using the inorganic bonding material as claimed in claim 1 or 2, wherein the auxiliary agent is one or more of citric acid, disodium hydrogen phosphate, sodium potassium tartrate and aluminum chloride.
5. The method for manufacturing an activated carbon rod by using an inorganic bonding material as claimed in claim 1, wherein 0.5 part by weight of antibacterial oyster shell powder is further added to the first material, and the preparation method of the antibacterial oyster shell powder comprises the following steps:
a. cleaning dirt on the surface of the oyster shell by using tap water, drying, carrying out superfine grinding to obtain first oyster shell powder, soaking the first oyster shell powder in an acetic acid solution with the mass fraction of 5-10% for 24 hours, taking out, and drying to obtain second oyster shell powder;
b. dissolving 10-20 parts by weight of chitosan into 200 parts by weight of 1% acetic acid solution, adding 0.5-1 part by weight of silver nitrate, and stirring for 3-5 hours to obtain a chitosan-silver mixed solution;
c. adding the second oyster shell powder into the chitosan-silver mixed solution, stirring for 24 hours under the condition of 0.1-0.5MPa, centrifuging, collecting a precipitate to obtain a third oyster shell powder, soaking the third oyster shell powder for 2-3 times by using distilled water, wherein the soaking time is 12 hours each time, centrifuging, collecting the precipitate to obtain a fourth oyster shell powder;
d. and drying the fourth oyster shell powder at 40-50 ℃, and crushing by using a low-temperature crusher to obtain the antibacterial oyster shell powder.
6. The method for manufacturing an activated carbon rod by using an inorganic bonding material as claimed in claim 5, wherein a layer of a fourth material is further coated on the outer side of the activated carbon rod, and the preparation method of the fourth material comprises the following steps:
step one, suspending 10-20 parts by weight of second oyster shell powder in 50 parts by weight of distilled water, adding 0.5-1 part by weight of bilirubin, stirring for 48 hours, centrifuging, and collecting precipitate to obtain fifth oyster shell powder;
and step two, stirring and mixing 1-3 parts by weight of water glass, 0.2-1 part by weight of auxiliary agent, 1-3 parts by weight of fifth oyster shell powder and 10-20 parts by weight of cement, and controlling the water-cement ratio to be 1-2 to obtain a fourth material.
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| CN106904713A (en) * | 2017-05-05 | 2017-06-30 | 遵义医学院 | A kind of water purification agent and preparation method thereof |
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| CN101585563A (en) * | 2009-06-06 | 2009-11-25 | 吕安平 | New composite water purifying agent and a preparation method thereof |
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