1. Clean and remove dust before using activated carbon for water purification, otherwise these black dust may temporarily affect the cleanliness of water quality, but it is recommended not to rinse with fresh tap water directly, because the porous activated carbon for water purification once adsorbs a large amount of chlorine in tap water. As well as bleaching powder, when it is placed in the filter and used later, it will cause damage to the water quality. I believe I don’t need to say more.https://www.wyactivatedcarbon.com/
2. It is impossible to clean the clogged debris in the porous pores of the water purification activated carbon by ordinary simple cleaning. Therefore, the water purification activated carbon needs to be replaced regularly to prevent the water purification activated carbon from losing its effect due to "adsorption saturation".
And the time to replace it is not to wait for it to fail before replacing it, so as to ensure that the water purification activated carbon can continuously remove the harmful substances in the water quality. It is recommended to replace it 1-2 times a month.
3. The efficiency of water purification activated carbon for treating water quality is related to its dosage, and it is usually "the effect of treating water quality with more dosage is relatively good."https://www.wyactivatedcarbon.com/products/activated-carbon-pellets/
4.After the quantitative water purification activated carbon is used, you should always observe the changes in water quality in the early stage of use, and pay attention to the observation results, as the basis for judging whether the water purification activated carbon needs to be replaced.
2. It is impossible to clean the clogged debris in the porous pores of the water purification activated carbon by ordinary simple cleaning. Therefore, the water purification activated carbon needs to be replaced regularly to prevent the water purification activated carbon from losing its effect due to "adsorption saturation".
And the time to replace it is not to wait for it to fail before replacing it, so as to ensure that the water purification activated carbon can continuously remove the harmful substances in the water quality. It is recommended to replace it 1-2 times a month.
3. The efficiency of water purification activated carbon for treating water quality is related to its dosage, and it is usually "the effect of treating water quality with more dosage is relatively good."https://www.wyactivatedcarbon.com/products/activated-carbon-pellets/
4.After the quantitative water purification activated carbon is used, you should always observe the changes in water quality in the early stage of use, and pay attention to the observation results, as the basis for judging whether the water purification activated carbon needs to be replaced.
Activated carbon products can be said to be very hot in the near future. Because of their very wide practical working environment, they have become one of the very important adsorption materials in simple purification devices. Not only that, with the development of society, science and technology change with each passing day, activated carbon with more excellent performance The development of is the general trend. As an upgraded product of a new generation of ordinary activated carbon particles, honeycomb activated carbon has emerged, and it has become a dark horse among the adsorption materials with great application prospects.https://www.coconutactivatedcarbon.com/
First of all, because the honeycomb activated carbon itself is processed through a honeycomb mold after high-temperature sintering with fine carbon powder under certain conditions, it has a larger adsorption area, which increases the probability of contact with impurity ions, thereby achieving adsorption effect.
So its essence is also that the purpose of people’s production is to purify water quality, especially the improvement of water quality through physical methods is its characteristic, because once chemical methods are used for purification, it is very likely that side reactions of varying degrees will occur, although it is possible The dose is very small, but the accumulation of less and more is definitely a hidden danger.https://www.activated-carbon-pellets.com/
Secondly, it is in the aspect of air removal. Because it has a good adsorption effect on several harmful gases in the air, it can be used to remove several specific harmful gases. The above are only two basic applications. In addition, they can also be applied to catalyst carriers, because the unique structure of the honeycomb activated carbon itself can well carry and protect the catalyst.
First of all, because the honeycomb activated carbon itself is processed through a honeycomb mold after high-temperature sintering with fine carbon powder under certain conditions, it has a larger adsorption area, which increases the probability of contact with impurity ions, thereby achieving adsorption effect.
So its essence is also that the purpose of people’s production is to purify water quality, especially the improvement of water quality through physical methods is its characteristic, because once chemical methods are used for purification, it is very likely that side reactions of varying degrees will occur, although it is possible The dose is very small, but the accumulation of less and more is definitely a hidden danger.https://www.activated-carbon-pellets.com/
Secondly, it is in the aspect of air removal. Because it has a good adsorption effect on several harmful gases in the air, it can be used to remove several specific harmful gases. The above are only two basic applications. In addition, they can also be applied to catalyst carriers, because the unique structure of the honeycomb activated carbon itself can well carry and protect the catalyst.
Cationic PAM is a kind of high molecular material polymer, if divided by form, at present, it is mainly particulate type, fine powder type and emulsified type. Emulsified type can be divided into water-in-oil type and water-in-water type. There are many ways to synthesize cationic polyacrylamide, and the synthesis process and raw material types are also different. Due to various reasons, there are no relevant national standards for cationic polyacrylamide in China at this stage, so manufacturers are implementing corporate standards.https://www.yrdcarbon.com/products/chemical/
The main application of cationic PAM:
Cationic polyacrylamide is mainly used as a flocculant for water treatment, and is mainly used for solid-liquid separation in industrial production, including processing techniques such as sedimentation, clarification, concentration and sludge treatment, and sludge treatment sedimentation and sewage treatment in wastewater treatment. In sludge treatment, the positively charged groups contained in the sludge can neutralize and neutralize the negatively charged organic colloidal solution in the sludge treatment, and its polymer materials have excellent bridging and agglomeration effects to promote the aggregation of colloidal solution particles into large flocs. Matter, separated from the suspension.
At this stage, the primary sludge treatment process is used to treat urban sewage and industrial wastewater. This product is a cationic polyacrylamide aqueous solution, which has positive electricity characteristics in acidic or alkaline media. This type of aqueous solution flocculates and precipitates wastewater with negative and electrically floating particles, and has a good clarification effect. It is used in alcohol plants, breweries, and MSG. Wastewater from factories, sugar factories, meat factories, beverage factories, textile printing and dyeing factories, etc., can also be used as a thickener or drag reducer in certain applications.https://www.yrdcarbon.com/products/chemical/anionic-polyacrylamide.html
Operation method of positive ion polyacrylamide:
Whether it is a cationic polyacrylamide emulsion, or a solid or powder product, it should be diluted with water during application. The general ratio is 0.1%-0.3%. The melting time for solid or fine powder products is about 60% minutes, and for liquid products such as emulsions in 3-5 minutes.
When using the melted aqueous solution to prepare and store the aqueous solution, it should be carried out in an enameled galvanized barrel or a plastic barrel, and should not be touched with metal products; after the product has melted, it should be added slowly and evenly to a melter with stirring and heating countermeasures. Prevent large clumps and long-term mechanical equipment cutting.
The main application of cationic PAM:
Cationic polyacrylamide is mainly used as a flocculant for water treatment, and is mainly used for solid-liquid separation in industrial production, including processing techniques such as sedimentation, clarification, concentration and sludge treatment, and sludge treatment sedimentation and sewage treatment in wastewater treatment. In sludge treatment, the positively charged groups contained in the sludge can neutralize and neutralize the negatively charged organic colloidal solution in the sludge treatment, and its polymer materials have excellent bridging and agglomeration effects to promote the aggregation of colloidal solution particles into large flocs. Matter, separated from the suspension.
At this stage, the primary sludge treatment process is used to treat urban sewage and industrial wastewater. This product is a cationic polyacrylamide aqueous solution, which has positive electricity characteristics in acidic or alkaline media. This type of aqueous solution flocculates and precipitates wastewater with negative and electrically floating particles, and has a good clarification effect. It is used in alcohol plants, breweries, and MSG. Wastewater from factories, sugar factories, meat factories, beverage factories, textile printing and dyeing factories, etc., can also be used as a thickener or drag reducer in certain applications.https://www.yrdcarbon.com/products/chemical/anionic-polyacrylamide.html
Operation method of positive ion polyacrylamide:
Whether it is a cationic polyacrylamide emulsion, or a solid or powder product, it should be diluted with water during application. The general ratio is 0.1%-0.3%. The melting time for solid or fine powder products is about 60% minutes, and for liquid products such as emulsions in 3-5 minutes.
When using the melted aqueous solution to prepare and store the aqueous solution, it should be carried out in an enameled galvanized barrel or a plastic barrel, and should not be touched with metal products; after the product has melted, it should be added slowly and evenly to a melter with stirring and heating countermeasures. Prevent large clumps and long-term mechanical equipment cutting.
The raw materials used to make white corundum directly affect the quality of white corundum. The selection and purchase of raw materials are also very important. When the cost of white corundum is relatively high, the price after production will be relatively higher.https://www.hslabrasive.com/
The raw material is the first factor that affects the quality of white corundum, and the second factor is the production method. The production method is different for each manufacturer. As a professional manufacturer, it has its own professional team and its production method is completely acceptable. The raw materials are processed perfectly while improving the quality of white corundum.
Relying on modern enterprise management concepts, complete production equipment, advanced manufacturing technology, and automated production methods, our factory strives for perfection. The varieties and models of white corundum, chromium corundum and single crystal corundum produced are complete, which can meet the needs of various customers .
Single crystal corundum is made of bauxite as the main raw material, mixed with appropriate amount of sulfide, and smelted at high temperature. It is off-white or light earthy yellow, with high hardness and toughness.
Produced by a special process, each particle size is produced by natural crystallization, not the result of mechanical crushing. It is a heat-resistant high-grade abrasive material with very good toughness, used to make advanced cutting and grinding tools, suitable for high-vanadium high-speed steel, austenitic The grinding of high hardness and high toughness materials such as bulk stainless steel and titanium alloy, especially for dry grinding and grinding of workpieces that are easy to deform and burn.https://www.hslabrasive.com/products/fused-alumina/white-fused-alumina.html
Relying on modern enterprise management concepts, complete production equipment, advanced manufacturing technology, and automated production methods, our factory strives for perfection. The varieties and models of white corundum, chromium corundum and single crystal corundum produced are complete, which can meet the needs of various customers .
The raw material is the first factor that affects the quality of white corundum, and the second factor is the production method. The production method is different for each manufacturer. As a professional manufacturer, it has its own professional team and its production method is completely acceptable. The raw materials are processed perfectly while improving the quality of white corundum.
Relying on modern enterprise management concepts, complete production equipment, advanced manufacturing technology, and automated production methods, our factory strives for perfection. The varieties and models of white corundum, chromium corundum and single crystal corundum produced are complete, which can meet the needs of various customers .
Single crystal corundum is made of bauxite as the main raw material, mixed with appropriate amount of sulfide, and smelted at high temperature. It is off-white or light earthy yellow, with high hardness and toughness.
Produced by a special process, each particle size is produced by natural crystallization, not the result of mechanical crushing. It is a heat-resistant high-grade abrasive material with very good toughness, used to make advanced cutting and grinding tools, suitable for high-vanadium high-speed steel, austenitic The grinding of high hardness and high toughness materials such as bulk stainless steel and titanium alloy, especially for dry grinding and grinding of workpieces that are easy to deform and burn.https://www.hslabrasive.com/products/fused-alumina/white-fused-alumina.html
Relying on modern enterprise management concepts, complete production equipment, advanced manufacturing technology, and automated production methods, our factory strives for perfection. The varieties and models of white corundum, chromium corundum and single crystal corundum produced are complete, which can meet the needs of various customers .
1. Different roles
The pre-activated carbon of the water purifier absorbs odor and residual chlorine. The rear activated carbon filter is to improve the taste, or sometimes remove the smell from the traditional storage tank.https://www.activated-carbon-pellets.com/
We all know that every component placed in the water purifier has its own very special purpose, such as: PP cotton is used to filter large particles of impurities, ultrafiltration membrane and RO membrane can remove invisible bacteria and viruses , Heavy metal ions, etc., activated carbon generally plays a role mainly through adsorption.
In actual use, due to the high precision of the RO membrane, high filtration resistance, and slow water production speed, only slowly purified water can be stored in a pressure water storage tank. A rubber balloon is placed in the pressure tank, and the water is forced out by the pressure between the water storage balloon and the tank body. In this case, the purified water will have a little rubbery smell after being in contact with rubber for a long time, which will have a certain impact on the taste. Therefore, post-activated carbon or other technologies are needed to improve the taste.
2. Different activated carbon raw materials
Pre-activated carbon is mainly used to absorb different colors, odors, odors, residual chlorine, etc., coal-based granular activated carbon is often used as the pre-activated carbon of household water purifiers. Because the carbon structure has more surface functional groups, it is more effective in chemical adsorption. The coconut shell activated carbon with relatively stable structure has more advantages.https://www.coconutactivatedcarbon.com/
The post activated carbon is mainly to improve the taste and control the growth of bacteria. The activated carbon itself needs to be of high purity, so pickling coconut shell activated carbon should be selected, and some consider the use of silver-loaded coconut shell activated carbon for bacteriostasis.
3. Different locations
The pre-activated carbon is generally located in the secondary filtration position. The raw water is firstly filtered through PP cotton to intercept large particles of impurities, and then passed through the pre-activated carbon to absorb different colors and odors, and then flow through other filter elements for deep filtration.
The post activated carbon is generally located behind the main unit filter element, so it is called the post activated carbon filter. The raw water reaches the water storage tank after passing through the filter element assembly of the host. After the water comes out of the water storage tank, it passes through the post activated carbon filter element to the faucet.
4. The replacement cycle is different
The replacement cycle of pre-activated carbon is generally about 6-12 months, because it needs to filter impurities in the water, so the replacement cycle cannot be too long. The rear activated carbon has to intercept much less pollutants than the front, so the replacement cycle is longer than that of the front activated carbon. It is recommended that the replacement cycle of post activated carbon is about 24 months.
The pre-activated carbon of the water purifier absorbs odor and residual chlorine. The rear activated carbon filter is to improve the taste, or sometimes remove the smell from the traditional storage tank.https://www.activated-carbon-pellets.com/
We all know that every component placed in the water purifier has its own very special purpose, such as: PP cotton is used to filter large particles of impurities, ultrafiltration membrane and RO membrane can remove invisible bacteria and viruses , Heavy metal ions, etc., activated carbon generally plays a role mainly through adsorption.
In actual use, due to the high precision of the RO membrane, high filtration resistance, and slow water production speed, only slowly purified water can be stored in a pressure water storage tank. A rubber balloon is placed in the pressure tank, and the water is forced out by the pressure between the water storage balloon and the tank body. In this case, the purified water will have a little rubbery smell after being in contact with rubber for a long time, which will have a certain impact on the taste. Therefore, post-activated carbon or other technologies are needed to improve the taste.
2. Different activated carbon raw materials
Pre-activated carbon is mainly used to absorb different colors, odors, odors, residual chlorine, etc., coal-based granular activated carbon is often used as the pre-activated carbon of household water purifiers. Because the carbon structure has more surface functional groups, it is more effective in chemical adsorption. The coconut shell activated carbon with relatively stable structure has more advantages.https://www.coconutactivatedcarbon.com/
The post activated carbon is mainly to improve the taste and control the growth of bacteria. The activated carbon itself needs to be of high purity, so pickling coconut shell activated carbon should be selected, and some consider the use of silver-loaded coconut shell activated carbon for bacteriostasis.
3. Different locations
The pre-activated carbon is generally located in the secondary filtration position. The raw water is firstly filtered through PP cotton to intercept large particles of impurities, and then passed through the pre-activated carbon to absorb different colors and odors, and then flow through other filter elements for deep filtration.
The post activated carbon is generally located behind the main unit filter element, so it is called the post activated carbon filter. The raw water reaches the water storage tank after passing through the filter element assembly of the host. After the water comes out of the water storage tank, it passes through the post activated carbon filter element to the faucet.
4. The replacement cycle is different
The replacement cycle of pre-activated carbon is generally about 6-12 months, because it needs to filter impurities in the water, so the replacement cycle cannot be too long. The rear activated carbon has to intercept much less pollutants than the front, so the replacement cycle is longer than that of the front activated carbon. It is recommended that the replacement cycle of post activated carbon is about 24 months.
Aeration tanks are often used in water treatment in chemical, electric power, steel, petroleum, printing and dyeing industries, and powdered activated carbon is often used in aeration tanks. So, what is the effect of adding powdered activated carbon in the aeration tank?https://www.yrdcarbon.com/
In the aeration tank wastewater treatment process, powder activated carbon is mainly used for flocculation, adsorption and separation. Activated carbon is used to adsorb or assist flocculation of some toxic and harmful organic pollutants that are difficult to biochemically degrade.
Adding powdered activated carbon to the aeration tank can also deal with the foaming problem in the aeration tank. It also has a significant effect on the treatment of waste water with messy composition, variable concentration and water volume. Putting powdered activated carbon into the aeration tank not only makes full use of wastewater treatment equipment, but also further enhances the treatment effect.
The working principle of adding powdered activated carbon in the aeration tank is to mix the powdered activated carbon and the returned charcoal-containing sludge together in the aeration tank, and the remaining sludge discharged from the sludge thickening tank enters the sludge dewatering device.
Due to the large specific surface area and strong adsorption capacity of powdered activated carbon, adhesion to the sludge can increase the adsorption capacity of the sludge, especially the dissolved oxygen at the interface between the activated sludge and the powdered activated carbon has been greatly improved, which will degrade the matrix The concentration also has a certain effect, and also improves the degradation and removal rate of COD.https://www.yrdcarbon.com/products/activated-carbon/
Due to the adsorption of powder activated carbon, it can also improve the sedimentation performance of sludge and eliminate sludge expansion, thereby reducing foam and hazards on the liquid surface of the aeration tank, and improving the ability of the aeration tank to resist organic shock loads and hydraulic load impacts , So that the tank runs stably and the water is evenly discharged.
In the aeration tank wastewater treatment process, powder activated carbon is mainly used for flocculation, adsorption and separation. Activated carbon is used to adsorb or assist flocculation of some toxic and harmful organic pollutants that are difficult to biochemically degrade.
Adding powdered activated carbon to the aeration tank can also deal with the foaming problem in the aeration tank. It also has a significant effect on the treatment of waste water with messy composition, variable concentration and water volume. Putting powdered activated carbon into the aeration tank not only makes full use of wastewater treatment equipment, but also further enhances the treatment effect.
The working principle of adding powdered activated carbon in the aeration tank is to mix the powdered activated carbon and the returned charcoal-containing sludge together in the aeration tank, and the remaining sludge discharged from the sludge thickening tank enters the sludge dewatering device.
Due to the large specific surface area and strong adsorption capacity of powdered activated carbon, adhesion to the sludge can increase the adsorption capacity of the sludge, especially the dissolved oxygen at the interface between the activated sludge and the powdered activated carbon has been greatly improved, which will degrade the matrix The concentration also has a certain effect, and also improves the degradation and removal rate of COD.https://www.yrdcarbon.com/products/activated-carbon/
Due to the adsorption of powder activated carbon, it can also improve the sedimentation performance of sludge and eliminate sludge expansion, thereby reducing foam and hazards on the liquid surface of the aeration tank, and improving the ability of the aeration tank to resist organic shock loads and hydraulic load impacts , So that the tank runs stably and the water is evenly discharged.
The casting process of chromium corundum for multi-component fused zirconia corundum bricks is very complicated, because each component has its own melting point and crystallization temperature, which differ from each other by Baidu and sometimes thousands of degrees, the temperature in the working process How does the control work?
As we all know, before discharging the molten fused brick, the molten body must be heated. For example, for steel, the temperature before pouring should be 100 degrees higher than the melting point in order to completely fill the model to obtain precise geometrical castings.
For chromium corundum, the temperature is 200 degrees higher. When melting and pouring multi-component ingredients, generally rely on eutectic point or invariant point. At this time, each component can crystallize at the same time.https://www.hslabrasive.com/products/fused-alumina/
If the temperature of the multi-component fused brick melt does not rise to the temperature of the most refractory component, the low-temperature component can be overheated to discharge the melt. But in this case, the fused brick will contain unmelted components.
According to the analysis of the selection of ingredients, there is little difference in melting point between the components of general refractory materials. But in the ternary system of chromium corundum and chromium spinel, the difference is about 1000 degrees: therefore, there are difficulties in formulating the pouring process of fused bricks, but there is no such difficulty in pouring steel.https://www.hslabrasive.com/
As we all know, before discharging the molten fused brick, the molten body must be heated. For example, for steel, the temperature before pouring should be 100 degrees higher than the melting point in order to completely fill the model to obtain precise geometrical castings.
For chromium corundum, the temperature is 200 degrees higher. When melting and pouring multi-component ingredients, generally rely on eutectic point or invariant point. At this time, each component can crystallize at the same time.https://www.hslabrasive.com/products/fused-alumina/
If the temperature of the multi-component fused brick melt does not rise to the temperature of the most refractory component, the low-temperature component can be overheated to discharge the melt. But in this case, the fused brick will contain unmelted components.
According to the analysis of the selection of ingredients, there is little difference in melting point between the components of general refractory materials. But in the ternary system of chromium corundum and chromium spinel, the difference is about 1000 degrees: therefore, there are difficulties in formulating the pouring process of fused bricks, but there is no such difficulty in pouring steel.https://www.hslabrasive.com/
Honeycomb activated carbon, as its name implies, is the collective name of honeycomb activated carbon. Nowadays, the technology of honeycomb activated carbon is mature, and more types of products are multiplied.https://www.activated-carbon-pellets.com/
So many customers are concerned about the price of special honeycomb activated carbon. Why is the price of special honeycomb activated carbon significantly higher than that of conventional honeycomb activated carbon?
Although the appearance of the product is different, the processing method of honeycomb activated carbon is similar.
After grinding the activated carbon into powder, add binders, adsorption aids and water-resistant materials to ensure that the honeycomb activated carbon can stick together after being dried by the mold. The adsorption aids ensure the adsorption capacity of the honeycomb activated carbon to a certain extent. After the water-resistant material, honeycomb activated carbon can be used in a humid environment.
Why is the price of special honeycomb activated carbon higher than conventional ones?
The mold is the more critical part. The carbon powder with additives is processed into finished products with different shapes and different pores after passing through honeycomb activated carbon molds of different specifications and different shapes.
Therefore, the shape of the mold determines the approximate shape of the honeycomb activated carbon. There are more conventional 100*100*100mm, 100*100*50mm and 100*50*50mm honeycomb activated carbons. Honeycomb activated carbon manufacturers basically have such molds. And some honeycomb activated carbon of special size and shape must be reopened to make new molds, and the production of the mold requires a certain period and cost, which will increase the price of special honeycomb activated carbon.https://www.powdered-activated-carbon.com/
Therefore, special honeycomb activated carbon will cost a certain amount of mold and labor, which indirectly increases the price of special honeycomb activated carbon, which is significantly higher than ordinary honeycomb activated carbon.
So many customers are concerned about the price of special honeycomb activated carbon. Why is the price of special honeycomb activated carbon significantly higher than that of conventional honeycomb activated carbon?
Although the appearance of the product is different, the processing method of honeycomb activated carbon is similar.
After grinding the activated carbon into powder, add binders, adsorption aids and water-resistant materials to ensure that the honeycomb activated carbon can stick together after being dried by the mold. The adsorption aids ensure the adsorption capacity of the honeycomb activated carbon to a certain extent. After the water-resistant material, honeycomb activated carbon can be used in a humid environment.
Why is the price of special honeycomb activated carbon higher than conventional ones?
The mold is the more critical part. The carbon powder with additives is processed into finished products with different shapes and different pores after passing through honeycomb activated carbon molds of different specifications and different shapes.
Therefore, the shape of the mold determines the approximate shape of the honeycomb activated carbon. There are more conventional 100*100*100mm, 100*100*50mm and 100*50*50mm honeycomb activated carbons. Honeycomb activated carbon manufacturers basically have such molds. And some honeycomb activated carbon of special size and shape must be reopened to make new molds, and the production of the mold requires a certain period and cost, which will increase the price of special honeycomb activated carbon.https://www.powdered-activated-carbon.com/
Therefore, special honeycomb activated carbon will cost a certain amount of mold and labor, which indirectly increases the price of special honeycomb activated carbon, which is significantly higher than ordinary honeycomb activated carbon.
Activated carbon primary air filter is made of activated carbon filter material. Activated carbon can effectively remove odor and toxic and harmful gases (such as stupid, formaldehyde, methanol, propane, etc.), purify the air, and maintain human health.https://www.yrdcarbon.com/
Suitable for air-conditioning ventilation system and factory waste gas disposal that pollutes the air. It is also suitable for the removal of toxic and harmful gases with low concentration and large air volume.
E.g:
a. Air filtration in public places such as airports, (such as wards for patients with respiratory diseases), office buildings and other public places can effectively remove peculiar smells in the air and has the advantage of saving energy.
b. In museums, archives, libraries and other places, remove the pollutants such as sulfur oxides and nitrogen oxides in the air, and protect the collections from destruction.
c. The control rooms of chemical, petrochemical, steel and other enterprises are used to maintain fine instruments from the hazards of corrosive gases.
d. Used in semiconductor and microelectronics manufacturing enterprises to remove "Airborne Molecular Contamination" (AMC), improve production quality, and maintain the well-being of personnel.https://www.yrdcarbon.com/products/activated-carbon/
e. Reduce odor in the laboratory animal room, improve the quality of laboratory animals, and maintain the atmospheric environment.
Suitable for air-conditioning ventilation system and factory waste gas disposal that pollutes the air. It is also suitable for the removal of toxic and harmful gases with low concentration and large air volume.
E.g:
a. Air filtration in public places such as airports, (such as wards for patients with respiratory diseases), office buildings and other public places can effectively remove peculiar smells in the air and has the advantage of saving energy.
b. In museums, archives, libraries and other places, remove the pollutants such as sulfur oxides and nitrogen oxides in the air, and protect the collections from destruction.
c. The control rooms of chemical, petrochemical, steel and other enterprises are used to maintain fine instruments from the hazards of corrosive gases.
d. Used in semiconductor and microelectronics manufacturing enterprises to remove "Airborne Molecular Contamination" (AMC), improve production quality, and maintain the well-being of personnel.https://www.yrdcarbon.com/products/activated-carbon/
e. Reduce odor in the laboratory animal room, improve the quality of laboratory animals, and maintain the atmospheric environment.
Application of coal columnar carbon
2021年1月9日Anyone who knows about coal-based columnar activated carbon knows that there are many types. The classification of columnar activated carbon is mainly based on the data of columnar activated carbon. For now, there are two main types of materials for producing columnar activated carbon, namely wood and coal.https://www.wyactivatedcarbon.com/
In this regard, the columnar activated carbon is usually divided into coal-based columnar activated carbon and wood columnar activated carbon. Coal-based columnar activated carbon is made of high-quality wood chips, coconut shell, etc., which are made by crushing, mixing, kneading, molding, drying, carbonization, and activation. Compared with traditional coal-based columnar carbon, the ash content, impurities, and CTC Dominate.
Coal-based columnar activated carbon is generally used for:
1. Gas phase adsorption;
2. Recovery of organic solvents (benzene series gas toluene, xylene, recovery of acetone in the cellulose acetate industry, recovery of CS2 in the production of viscose staple fiber, etc.);
3. Removal of impurities and harmful gases, this skill has reached the highest level in China.
Generally, 4mm coal-based columnar activated carbon can only adsorb 60% of CTC, which does not exceed 70%. The 4mm wooden columnar activated carbon produced by our company has an adsorption rate of CTC, which compensates for the lack of CTC adsorption rate in China. Up to international standards! Completely replace imported products.
The coal-based columnar activated carbon is made of high-quality anthracite coal, refined and processed by advanced technology, and has the appearance of black cylindrical particles; it has a reasonable pore structure, excellent adsorption function, high mechanical strength, easy repeated regeneration, and low cost. Used in the purification of toxic gases, waste gas treatment, industrial and daily water purification, solvent recovery, etc.https://www.wyactivatedcarbon.com/products/other-activated-carbon/silver-loaded-activated-charcoal.html
In this regard, the columnar activated carbon is usually divided into coal-based columnar activated carbon and wood columnar activated carbon. Coal-based columnar activated carbon is made of high-quality wood chips, coconut shell, etc., which are made by crushing, mixing, kneading, molding, drying, carbonization, and activation. Compared with traditional coal-based columnar carbon, the ash content, impurities, and CTC Dominate.
Coal-based columnar activated carbon is generally used for:
1. Gas phase adsorption;
2. Recovery of organic solvents (benzene series gas toluene, xylene, recovery of acetone in the cellulose acetate industry, recovery of CS2 in the production of viscose staple fiber, etc.);
3. Removal of impurities and harmful gases, this skill has reached the highest level in China.
Generally, 4mm coal-based columnar activated carbon can only adsorb 60% of CTC, which does not exceed 70%. The 4mm wooden columnar activated carbon produced by our company has an adsorption rate of CTC, which compensates for the lack of CTC adsorption rate in China. Up to international standards! Completely replace imported products.
The coal-based columnar activated carbon is made of high-quality anthracite coal, refined and processed by advanced technology, and has the appearance of black cylindrical particles; it has a reasonable pore structure, excellent adsorption function, high mechanical strength, easy repeated regeneration, and low cost. Used in the purification of toxic gases, waste gas treatment, industrial and daily water purification, solvent recovery, etc.https://www.wyactivatedcarbon.com/products/other-activated-carbon/silver-loaded-activated-charcoal.html
Why do we need activated carbon to treat vanadium-containing wastewater? Activated carbon can adsorb tetravalent vanadium ions and pentavalent vanadium ions in the solution. The pH value of the solution and the surface properties of the activated carbon have a certain influence on its adsorption.https://www.coconutactivatedcarbon.com/
The adsorption of tetravalent or pentavalent vanadium ions within a certain pH range will increase due to the increase of the pH value, reaching the maximum between the pH value range of 2.5-3, and then decreasing; the activated carbon after oxidation treatment has a greater effect on vanadium ions The adsorption rate of the sodium metavanadate solution is modified by oxidation modified powdered activated carbon to adsorb vanadium, and 90% of vanadium can be removed from the solution with a content of 50mg/L.
When a larger amount of activated carbon is used or a longer adsorption time, the adsorption rate of activated carbon is increased, that is, more vanadium in the solution is adsorbed. For example: comparing 0.5gC/100ML and 5.0gC/100ML with the same adsorption time of 3h, the residual percentage of vanadium in the solution: the former is about 40%, and the latter is about 9%. Then compare the residual amount of vanadium in the solution with the adsorption time of 5.0gC/100ml for 1h and 3h: the former is about 22% and the latter is about 9%.
Someone pre-enriched trace vanadium in water with activated carbon, and studied the adsorption and desorption conditions of trace vanadium in water and the adsorption capacity of activated carbon for vanadium. 50mg activated carbon can quantitatively recover vanadium within 80ug in 500ml of water, and the recovery rate is between 93% and 104%. This method analyzed and tested the amount of trace vanadium in synthetic seawater samples, and the results were satisfactory.https://www.activated-carbon-pellets.com/
The adsorption of tetravalent or pentavalent vanadium ions within a certain pH range will increase due to the increase of the pH value, reaching the maximum between the pH value range of 2.5-3, and then decreasing; the activated carbon after oxidation treatment has a greater effect on vanadium ions The adsorption rate of the sodium metavanadate solution is modified by oxidation modified powdered activated carbon to adsorb vanadium, and 90% of vanadium can be removed from the solution with a content of 50mg/L.
When a larger amount of activated carbon is used or a longer adsorption time, the adsorption rate of activated carbon is increased, that is, more vanadium in the solution is adsorbed. For example: comparing 0.5gC/100ML and 5.0gC/100ML with the same adsorption time of 3h, the residual percentage of vanadium in the solution: the former is about 40%, and the latter is about 9%. Then compare the residual amount of vanadium in the solution with the adsorption time of 5.0gC/100ml for 1h and 3h: the former is about 22% and the latter is about 9%.
Someone pre-enriched trace vanadium in water with activated carbon, and studied the adsorption and desorption conditions of trace vanadium in water and the adsorption capacity of activated carbon for vanadium. 50mg activated carbon can quantitatively recover vanadium within 80ug in 500ml of water, and the recovery rate is between 93% and 104%. This method analyzed and tested the amount of trace vanadium in synthetic seawater samples, and the results were satisfactory.https://www.activated-carbon-pellets.com/
Because coconut shell activated carbon has reducibility, it can be used to reduce ores and smelt metals in the metallurgical industry. In the production of non-ferrous metals, coconut shell activated carbon is often used as a surface flux. When non-ferrous metals are melted, the surface flux forms a protective layer on the surface of the molten metal to separate the metal from the gas medium, which can reduce the splash loss of the molten metal. , And can reduce the saturation of the gas in the melt.https://www.wyactivatedcarbon.com/
Coconut shell activated carbon use: Coconut shell activated carbon metallurgical industry, coconut shell activated carbon was used to smelt iron ore before. Coconut shell activated carbon and coke smelted pig iron, even if the chemical composition is the same, its structure and mechanical properties are still different. Pig iron smelted with coconut shell activated carbon generally has a fine-grained structure, tight castings and no cracks. The pig iron produced with coconut shell activated carbon contains less impurities and is suitable for the production of high-quality steel.
A large amount of activated carbon is also used in the production of crystalline silicon. The coconut shell activated carbon used in the production of crystalline silicon should not contain raw charcoal heads and excessive ash. Coconut shell activated carbon can also be used in the manufacture of carburizing agents. All steel products that require high hardness and wear resistance on the surface and good toughness in the center must be carburized. The carbon-containing mixture used to carburize steel products is called carburizing agent. The carburizing effect of simple coconut shell activated carbon is poor.
Therefore, coconut shell activated carbon is often used as a raw material, and then a certain amount of contact agent is added to make a carburizing agent. In the production of carbon disulfide, coconut shell activated carbon is the best raw material for carbon disulfide production. The coconut shell activated carbon used to produce carbon disulfide should be hard, large in volume, low in ash and moisture content, and high in fixed carbon content. It takes about 0.5 tons of coconut shell activated carbon to produce 1 ton of carbon disulfide.https://www.wyactivatedcarbon.com/products/other-activated-carbon/silver-loaded-activated-charcoal.html
Coconut shell activated carbon use: Coconut shell activated carbon metallurgical industry, coconut shell activated carbon was used to smelt iron ore before. Coconut shell activated carbon and coke smelted pig iron, even if the chemical composition is the same, its structure and mechanical properties are still different. Pig iron smelted with coconut shell activated carbon generally has a fine-grained structure, tight castings and no cracks. The pig iron produced with coconut shell activated carbon contains less impurities and is suitable for the production of high-quality steel.
A large amount of activated carbon is also used in the production of crystalline silicon. The coconut shell activated carbon used in the production of crystalline silicon should not contain raw charcoal heads and excessive ash. Coconut shell activated carbon can also be used in the manufacture of carburizing agents. All steel products that require high hardness and wear resistance on the surface and good toughness in the center must be carburized. The carbon-containing mixture used to carburize steel products is called carburizing agent. The carburizing effect of simple coconut shell activated carbon is poor.
Therefore, coconut shell activated carbon is often used as a raw material, and then a certain amount of contact agent is added to make a carburizing agent. In the production of carbon disulfide, coconut shell activated carbon is the best raw material for carbon disulfide production. The coconut shell activated carbon used to produce carbon disulfide should be hard, large in volume, low in ash and moisture content, and high in fixed carbon content. It takes about 0.5 tons of coconut shell activated carbon to produce 1 ton of carbon disulfide.https://www.wyactivatedcarbon.com/products/other-activated-carbon/silver-loaded-activated-charcoal.html
1. Explanation of particle size of white corundum powder
Particle size: The size of powder particles is called particle size. Because the shape of the particles is very complicated, there are usually several expression methods, such as surface area particle size such as sieve particle size, sedimentation particle size, and equivalent volume particle size.https://www.hslabrasive.com/
At present, there is no unified technical standard for powder particle size at home and abroad, and each enterprise has its own definition and expression of particle size indicators. In different countries, different industries have different standards, so the meaning of "granularity" is difficult to unify.
2. Explanation of "mesh" of white corundum
Mesh: refers to the number of holes per square inch of the screen, 50 mesh means 50 holes per square inch, 500 mesh is 500 holes, the higher the mesh number, the more holes. In addition to representing the holes of the screen, it is also used to indicate the particle size of the particles that can pass through the screen. The higher the mesh, the smaller the particle size.https://www.hslabrasive.com/products/fused-alumina/brown-fused-alumina.html
The sieving particle size refers to the particle size that can be expressed by the number of holes on the screen with a width of 1 inch (25.4mm), so it is called "mesh number".
Particle size: The size of powder particles is called particle size. Because the shape of the particles is very complicated, there are usually several expression methods, such as surface area particle size such as sieve particle size, sedimentation particle size, and equivalent volume particle size.https://www.hslabrasive.com/
At present, there is no unified technical standard for powder particle size at home and abroad, and each enterprise has its own definition and expression of particle size indicators. In different countries, different industries have different standards, so the meaning of "granularity" is difficult to unify.
2. Explanation of "mesh" of white corundum
Mesh: refers to the number of holes per square inch of the screen, 50 mesh means 50 holes per square inch, 500 mesh is 500 holes, the higher the mesh number, the more holes. In addition to representing the holes of the screen, it is also used to indicate the particle size of the particles that can pass through the screen. The higher the mesh, the smaller the particle size.https://www.hslabrasive.com/products/fused-alumina/brown-fused-alumina.html
The sieving particle size refers to the particle size that can be expressed by the number of holes on the screen with a width of 1 inch (25.4mm), so it is called "mesh number".
Coal-based granular activated carbon has high strength, developed pores, large specific surface area, especially large pore volume, which has unique advantages. Coal-based activated carbon has strong adsorption capacity for various organic matter, free chlorine and harmful gases in the air. It is an excellent adsorbent for the deep purification of urban drinking water and is used to remove bacteria and poisonous gases in the air.https://www.activated-carbon-pellets.com/
Coal-based activated carbon has developed pore structure, good chemical stability and mechanical strength, and is an excellent broad-spectrum carbonaceous adsorption material. According to the different appearance, coal-based activated carbon can be divided into coal-based granular activated carbon and coal-based powdered activated carbon. Granular activated carbon is divided into coal-based formed carbon, including columnar carbon, briquette (or pressed carbon) and spherical carbon. There are two major types of raw coal crushed activated carbon.
According to different uses, activated carbon can be divided into multiple uses such as water purification, air purification, decolorization, solvent recovery, injection, and protection. Because of its acid resistance, alkali resistance, and heat resistance, and the granular activated carbon can be easily regenerated after being saturated with adsorption, activated carbon is an indispensable carbonaceous adsorption material in industrial production and environmental protection in modern society.
The adsorption of solute molecules in water by coal-based granular activated carbon is a complex process, which is the result of the combined effects of several forces, including ion attraction, van der Waals force, and chemical impurities. According to the dual-rate diffusion theory of adsorption, adsorption is a dual-rate process consisting of two stages: rapid diffusion and slow diffusion. The rapid diffusion is completed within a few hours, exerting 60% to 80% of the adsorption capacity of coal-based granular activated carbon.https://www.powdered-activated-carbon.com/
Coal-based activated carbon has developed pore structure, good chemical stability and mechanical strength, and is an excellent broad-spectrum carbonaceous adsorption material. According to the different appearance, coal-based activated carbon can be divided into coal-based granular activated carbon and coal-based powdered activated carbon. Granular activated carbon is divided into coal-based formed carbon, including columnar carbon, briquette (or pressed carbon) and spherical carbon. There are two major types of raw coal crushed activated carbon.
According to different uses, activated carbon can be divided into multiple uses such as water purification, air purification, decolorization, solvent recovery, injection, and protection. Because of its acid resistance, alkali resistance, and heat resistance, and the granular activated carbon can be easily regenerated after being saturated with adsorption, activated carbon is an indispensable carbonaceous adsorption material in industrial production and environmental protection in modern society.
The adsorption of solute molecules in water by coal-based granular activated carbon is a complex process, which is the result of the combined effects of several forces, including ion attraction, van der Waals force, and chemical impurities. According to the dual-rate diffusion theory of adsorption, adsorption is a dual-rate process consisting of two stages: rapid diffusion and slow diffusion. The rapid diffusion is completed within a few hours, exerting 60% to 80% of the adsorption capacity of coal-based granular activated carbon.https://www.powdered-activated-carbon.com/
The pores of activated carbon can be divided into three categories according to the pore size.
Large hole: radius 1000-1000000 A.
Transition hole: radius 20-1000 A.
Micro hole: radius-20 A.
Activated carbon made from different raw materials has different pore sizes. Activated carbon made from coconut shell has the smallest pore radius. Wood activated carbon generally has the largest pore radius, they are used to adsorb larger molecules, and they are almost exclusively used in the liquid phase.https://www.chinactivecarbon.com/products/coconut-carbon-gold.html
Activated carbon can be made of many kinds of carbonaceous materials, including wood, sawdust, coal, coke, peat, lignin, fruit core, hard nut shell, sucrose pulp, bone, lignite, petroleum residue, etc. Among them, coal and coconut shells have become the most commonly used raw materials for making activated carbon. The production of activated carbon is basically divided into two processes. The first process includes dehydration and carbonization. The raw materials are heated and dried at a temperature of 170 to 600°C, and approximately 80% of the original organic matter is carbonized.
The second process is to activate the carbonized material, which is completed by the reaction of activator such as water vapor and carbon. In the endothermic reaction, a mixed gas composed of CO and H2 is mainly generated to extinguish and heat the carbonized material to an appropriate temperature (800 To 1000℃), to burn out all the synthesizable substances in it, resulting in a prosperous microporous structure and a large specific surface area, so it has a strong adsorption ability.
The first type of granular activated carbon used in the field of urban water supply treatment is made of wood, called charcoal. The pore size of coal activated carbon is somewhere in between.
Among coal-based activated carbons, lignite activated carbons have more transitional pores and larger uniform pore diameters than anthracite activated carbons, so they can effectively remove macromolecular organics in water. Activated carbon commonly used in water treatment does not necessarily have a large surface area, but it should have more transitional pores and a larger uniform pore size.https://www.chinactivecarbon.com/
Large hole: radius 1000-1000000 A.
Transition hole: radius 20-1000 A.
Micro hole: radius-20 A.
Activated carbon made from different raw materials has different pore sizes. Activated carbon made from coconut shell has the smallest pore radius. Wood activated carbon generally has the largest pore radius, they are used to adsorb larger molecules, and they are almost exclusively used in the liquid phase.https://www.chinactivecarbon.com/products/coconut-carbon-gold.html
Activated carbon can be made of many kinds of carbonaceous materials, including wood, sawdust, coal, coke, peat, lignin, fruit core, hard nut shell, sucrose pulp, bone, lignite, petroleum residue, etc. Among them, coal and coconut shells have become the most commonly used raw materials for making activated carbon. The production of activated carbon is basically divided into two processes. The first process includes dehydration and carbonization. The raw materials are heated and dried at a temperature of 170 to 600°C, and approximately 80% of the original organic matter is carbonized.
The second process is to activate the carbonized material, which is completed by the reaction of activator such as water vapor and carbon. In the endothermic reaction, a mixed gas composed of CO and H2 is mainly generated to extinguish and heat the carbonized material to an appropriate temperature (800 To 1000℃), to burn out all the synthesizable substances in it, resulting in a prosperous microporous structure and a large specific surface area, so it has a strong adsorption ability.
The first type of granular activated carbon used in the field of urban water supply treatment is made of wood, called charcoal. The pore size of coal activated carbon is somewhere in between.
Among coal-based activated carbons, lignite activated carbons have more transitional pores and larger uniform pore diameters than anthracite activated carbons, so they can effectively remove macromolecular organics in water. Activated carbon commonly used in water treatment does not necessarily have a large surface area, but it should have more transitional pores and a larger uniform pore size.https://www.chinactivecarbon.com/
Because the adsorption process and principle of action involved in activated carbon water treatment are more complicated, there are many influencing factors. It is mainly related to the nature of activated carbon, the nature of pollutants in the water, the process principle of activated carbon disposal, and the selected operating parameters and operating conditions.https://www.wyactivatedcarbon.com/
1. The properties of activated carbon. Activated carbon used for water treatment should have three requirements: large adsorption capacity, fast adsorption speed and good mechanical strength. In addition to other external conditions, the adsorption capacity of activated carbon is mainly related to the appearance of activated carbon; the adsorption speed is mainly related to the particle size and pore dispersion of activated carbon, which is conducive to the diffusion of adsorbents (pollutants in water) into the micropores. The smaller the particle size of the activated carbon, the faster the adsorption speed, but the head loss will increase, generally in the range of 8-30 mesh. The mechanical abrasion resistance of activated carbon affects the service life of activated carbon.
2. The nature of pollutants is very different in the adsorption capacity of different pollutants of the same kind of activated carbon. Due to differences in the solubility, molecular structure, polarity and concentration of pollutants in water, the adsorption of activated carbon can vary greatly.
3. Temperature Because the adsorption process is an exothermic reaction, the heat of adsorption is small during liquid phase adsorption, and when activated carbon is used to dispose of water, the effect of temperature on adsorption is not significant.
4. The effect of coexistence of multi-component pollutants When applied to the adsorption method to treat water, the water is usually not a single pollutant, but a mixture of multi-component pollutants. During adsorption, they can be co-adsorbed to promote or interfere with each other. Under normal conditions, the respective adsorption capacity of multi-component adsorption is lower than that of single-component adsorption.
5. Adsorption operating conditions: When activated carbon is adsorbed in liquid phase, the speed of external diffusion (liquid film diffusion) has an effect on the adsorption, so the type of adsorption installation, contact time (water flow rate), etc. have an impact on the adsorption effect.https://www.wyactivatedcarbon.com/products/other-activated-carbon/honeycomb-activated-carbon.html
1. The properties of activated carbon. Activated carbon used for water treatment should have three requirements: large adsorption capacity, fast adsorption speed and good mechanical strength. In addition to other external conditions, the adsorption capacity of activated carbon is mainly related to the appearance of activated carbon; the adsorption speed is mainly related to the particle size and pore dispersion of activated carbon, which is conducive to the diffusion of adsorbents (pollutants in water) into the micropores. The smaller the particle size of the activated carbon, the faster the adsorption speed, but the head loss will increase, generally in the range of 8-30 mesh. The mechanical abrasion resistance of activated carbon affects the service life of activated carbon.
2. The nature of pollutants is very different in the adsorption capacity of different pollutants of the same kind of activated carbon. Due to differences in the solubility, molecular structure, polarity and concentration of pollutants in water, the adsorption of activated carbon can vary greatly.
3. Temperature Because the adsorption process is an exothermic reaction, the heat of adsorption is small during liquid phase adsorption, and when activated carbon is used to dispose of water, the effect of temperature on adsorption is not significant.
4. The effect of coexistence of multi-component pollutants When applied to the adsorption method to treat water, the water is usually not a single pollutant, but a mixture of multi-component pollutants. During adsorption, they can be co-adsorbed to promote or interfere with each other. Under normal conditions, the respective adsorption capacity of multi-component adsorption is lower than that of single-component adsorption.
5. Adsorption operating conditions: When activated carbon is adsorbed in liquid phase, the speed of external diffusion (liquid film diffusion) has an effect on the adsorption, so the type of adsorption installation, contact time (water flow rate), etc. have an impact on the adsorption effect.https://www.wyactivatedcarbon.com/products/other-activated-carbon/honeycomb-activated-carbon.html
1. The honeycomb activated carbon should be equipped with special carbon barrels, which are fixed in the adsorption device. When renewing the activated carbon, you should also pay attention to removing the hexagonal bolts and then replacing the carbon box.https://www.coconutactivatedcarbon.com/
2. Replace the filter cotton. When replacing the filter cotton, a layer of carbon box belongs to the filter layer. Generally, the thickness of the filter cotton should be two millimeters in the carbon block material. It should be replaced every three months.
3. Replace the honeycomb activated carbon of the adsorption device. The service life of the honeycomb activated carbon is generally within half a year to one year. Or some can be replaced after two years of use. The next thing to pay attention to is to remove the honeycomb activated carbon to avoid the vibration force in use.https://www.activated-carbon-pellets.com/
2. Replace the filter cotton. When replacing the filter cotton, a layer of carbon box belongs to the filter layer. Generally, the thickness of the filter cotton should be two millimeters in the carbon block material. It should be replaced every three months.
3. Replace the honeycomb activated carbon of the adsorption device. The service life of the honeycomb activated carbon is generally within half a year to one year. Or some can be replaced after two years of use. The next thing to pay attention to is to remove the honeycomb activated carbon to avoid the vibration force in use.https://www.activated-carbon-pellets.com/
Test method of activated carbon
2020年12月24日The particle size determination specification stipulates the particle size determination of coal-based granular activated carbon, the instrument, the determination procedure, and the processing of the measurement results. The specification applies to the determination of the particle size of coal-based granular activated carbon.https://www.powdered-activated-carbon.com/
1. Measurement method
The quality of the coal-based granular activated carbon sample for purified water is placed on a vibrating sieve machine for sieving, and the percentage of the mass of the sample retained on each sieve layer to the mass of the original sample represents the particle size distribution of the sample.
2. Determine Bujun
a. According to the technical requirements of the product, select a set of corresponding screen layers, arrange them in order from top to bottom according to the size of the screen holes, and place them on the vibrating screen.https://www.granular-activated-carbon.com/
b. Weigh 100 g coal-based granular activated carbon sample and pour it into the upper sieve of the vibrating sieve machine, cover the sieve cover and fasten it.
1. Measurement method
The quality of the coal-based granular activated carbon sample for purified water is placed on a vibrating sieve machine for sieving, and the percentage of the mass of the sample retained on each sieve layer to the mass of the original sample represents the particle size distribution of the sample.
2. Determine Bujun
a. According to the technical requirements of the product, select a set of corresponding screen layers, arrange them in order from top to bottom according to the size of the screen holes, and place them on the vibrating screen.https://www.granular-activated-carbon.com/
b. Weigh 100 g coal-based granular activated carbon sample and pour it into the upper sieve of the vibrating sieve machine, cover the sieve cover and fasten it.
The adsorption capacity of activated carbon has a certain relationship with the water temperature and water quality. The higher the water temperature, the stronger the adsorption capacity of activated carbon; if the water temperature is higher than 30°C, the adsorption capacity reaches the limit and may gradually decrease. When the water quality is acidic, the adsorption capacity of activated carbon for anionic substances is relatively weak; when the water quality is alkaline, the adsorption capacity of activated carbon for cationic substances is weakened. Therefore, the pH of water quality is unstable, which will also affect the adsorption capacity of activated carbon.https://www.wyactivatedcarbon.com/
The adsorption principle of activated carbon is: a layer of balanced surface concentration is formed on the surface of the particles, and then organic impurities are adsorbed into the activated carbon particles. The initial adsorption effect is very high. But over time, the adsorption capacity of activated carbon will weaken to varying degrees, and the adsorption effect will also decrease. If the effluent quality of c is turbid and the organic content in the water is high, the activated carbon will quickly lose its filtering function. Therefore, activated carbon should be cleaned or replaced regularly.
The size of activated carbon particles also affects the adsorption capacity. Generally speaking, the smaller the activated carbon particles, the larger the filtration area.
The adsorption capacity of activated carbon is directly proportional to the contact time with water. The longer the contact time, the better the filtered water quality.https://www.wyactivatedcarbon.com/products/granular-activated-carbon/
The adsorption principle of activated carbon is: a layer of balanced surface concentration is formed on the surface of the particles, and then organic impurities are adsorbed into the activated carbon particles. The initial adsorption effect is very high. But over time, the adsorption capacity of activated carbon will weaken to varying degrees, and the adsorption effect will also decrease. If the effluent quality of c is turbid and the organic content in the water is high, the activated carbon will quickly lose its filtering function. Therefore, activated carbon should be cleaned or replaced regularly.
The size of activated carbon particles also affects the adsorption capacity. Generally speaking, the smaller the activated carbon particles, the larger the filtration area.
The adsorption capacity of activated carbon is directly proportional to the contact time with water. The longer the contact time, the better the filtered water quality.https://www.wyactivatedcarbon.com/products/granular-activated-carbon/
The appearance of coal columnar activated carbon is black strips, relatively regular, black and smooth on the outside, hardness is relatively high, and density is relatively large, so it has an important role in air adsorption.https://www.activated-carbon-pellets.com/
If you want to raise moisture, the old way is exposure and baking. Now it’s summer and there is plenty of sunlight. So after production, you can save costs by exposing under the sun, and then filter the ash to reduce the moisture. But If you want to have no moisture at all, this is not possible, because gas adsorption can carry some moisture. Although it is low, it cannot be said that there is no.
Then there is baking. This cost will be slightly higher, but the moisture can be effectively controlled. The sun is uneven, there are more or less, and the baking is through the equipment, and then tested to achieve uniformity and moisture. The reduction is also much stronger than those. Baking also includes machine baking and some heating simple baking, which depends on the amount of moisture received in the pre- and post-production.https://www.chinactivecarbon.com/
If you want to raise moisture, the old way is exposure and baking. Now it’s summer and there is plenty of sunlight. So after production, you can save costs by exposing under the sun, and then filter the ash to reduce the moisture. But If you want to have no moisture at all, this is not possible, because gas adsorption can carry some moisture. Although it is low, it cannot be said that there is no.
Then there is baking. This cost will be slightly higher, but the moisture can be effectively controlled. The sun is uneven, there are more or less, and the baking is through the equipment, and then tested to achieve uniformity and moisture. The reduction is also much stronger than those. Baking also includes machine baking and some heating simple baking, which depends on the amount of moisture received in the pre- and post-production.https://www.chinactivecarbon.com/
