activated carbon

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What is activated carbon0baiyuncarbon2021-12-08 22:38:53
What Is Activated Carbon? Activated carbon is made from carbonaceous material that has been heat treated at very high temperatures to create many tiny pores, greatly increasing its surface area. These tiny pores and massive surface area allow the filter media to trap a large volume of material, making it useful for removing pollutants from both air and water. Different methods of creating activated carbon result in different forms of the material suitable for different uses. In aquariums, the form mostly used is GAC, or granular activated carbon. Forms of activated carbon include: BAC, or bead activated carbon EAC, or extruded activated carbon GAC, or granular activated carbon PAC, or powdered activated carbon (also available in compressed pellet form) There are also different sources for the carbon itself, each resulting in a different possible pore size. Materials such as coal, coconuts, peat, bamboo, and wood are all used to create activated carbon. For aquariums, the best source is bituminous coal.  [View Answers]
What are the types of activated carbon for water treatment0dingxinda92021-03-22 00:29:14
Water purification activated carbon products have the characteristics of developed pore structure, large specific surface area, strong adsorption capacity, low impurity content, and repeated use of regeneration.   Activated carbon special for water purification is widely used in the deep purification of drinking water, industrial circulating water, circulating water from power plant boilers, electronics industry, beverages, and food industries.powdered carbon activated  It has a good effect on water purification. It can not only remove peculiar smell and improve the purity of water, but also has a high removal rate of various impurities in water such as chlorine, phenol, arsenic, lead, cyanide, pesticides and other harmful substances. It can be widely used to fill all kinds of large, medium and small water purifiers. It is also suitable for the decolorization and refining of sugar and refreshing drinks, as well as the purification of indoor air, especially activated carbon loaded with special ingredients, which is harmful to indoor harmful gases such as ammonia. , Formaldehyde, etc., has a good purification effect.   Classification of activated carbon for water treatment: Granular activated carbon: According to different materials, it can be divided into coconut shell activated carbon, nut shell activated carbon and coal-based activated carbon.www.wyactivatedcarbon.com  In general, which kind of activated carbon for water purification can be used, the final choice depends on factors such as the requirements for water quality and the scale of the water plant. Don't choose the expensive one, just choose the right one.   Nutshell activated carbon: The raw materials of nutshell activated carbon are generally peach shells, apricot shells, coconut shells and other shells. Among them, coconut shell activated carbon is the best. It is the adsorption speed, adsorption capacity, strength and other indicators are far more than other activated carbon, generally used for drinking water treatment, sugar, beverage decolorization, fish farming aquarium water purification, deodorization, pharmaceutical industry Purification, decolorization, deodorization, purification and as a catalyst directly added to the product.   Powdered activated carbon: generally used wood chips, coal as raw materials, carbonization, activation, grinding and other processes, mainly used in static adsorption operation to treat water deodorization, deodorization and small-scale industrial or urban sewage treatment, generally used as Deep processing use.  [View Answers]
What are the types and applications of activated carbon for wine0dingxinda92021-03-22 00:28:18
The function of activated carbon for wine treatment is mainly to remove variegated color (referring to white wine), undesirable impurities and promote aging. Charcoal or bone charcoal has been used in wine treatment for a long time in Europe, and now it has been replaced by activated carbon. carbon pellets   In the process, the activated carbon should be made into a thin slurry first, and then added and mixed slowly to avoid a large amount of air entering.   The amount of activated carbon used in wine should be strictly controlled according to different wines. Otherwise, the natural aroma in the wine will disappear and the unique characteristics of certain wines will be lost. How much activated carbon should be added to a certain wine should be tested Determine, and should strictly select the type of carbon.   When making beer, before adding hops, the unfermented juice is treated with activated carbon for wine, which can reduce the protein content and improve its foam retention and the aroma of cooked beer, such as the use of activated carbon to treat the bitter juice It is more effective. coconut shell granular activated carbon Treatment with activated carbon after fermentation can improve the unique aroma and foaming properties of beer, and can also accelerate beer aging.   With the development of technology, in the alcohol processing, special alcoholic activated carbon varieties have been formed, such as special active carbon for alcohol processing, special active carbon for luzhou-flavor koji wine processing, special active carbon for fragrant wine processing, special active carbon for melon residue wine processing And so on, the development and application of special activated carbon varieties not only enrich the activated carbon product line, but also help improve its application performance.  [View Answers]
Which activated carbon is suitable for gold extraction0dingxinda92021-03-22 00:27:12
Nowadays, the most commonly used gold recovery method is the carbon slurry method. This method has been continued to this day because the process is not very complicated, the investment is less, and the effect of extracting gold is better. The carbon slurry method is a process in which the monovalent gold cyanide is adsorbed on activated carbon after the cyanide leaching of the gold-containing material is completed. activated carbon extracting gold   It has long been discovered that coconut shell activated carbon can adsorb precious metals from the solution. At first, it only adsorbs gold from the cyanide solution, and the gold-loaded carbon is smelted to recover gold. Since the cyanide pulp must be separated into a solid-liquid to obtain a clear liquid and activated carbon cannot be returned to use, this method cannot compete with the widely used zinc replacement method in industry. Later, activated carbon was used to directly adsorb gold from the cyanide pulp, thus eliminating the need for solid-liquid separation; the gold-loaded activated carbon was desorbed with a mixture of sodium hydroxide and sodium cyanide, and the activated carbon could be used repeatedly after activation. The gold extraction process by carbon slurry method is a relatively complicated process. Among them, whether the activated carbon can effectively and maximize the absorption of gold in the leaching slurry onto the activated carbon is the most critical point. The activated carbon used for gold extraction is coconut shell activated carbon, which has high strength, uniform particle size, developed microporous structure, strong selective adsorption to gold-cyanide complexes, easy analysis, and can be regenerated and used repeatedly. activated carbon manufacturer Coconut shell activated carbon has special adsorption properties for precious metals, and is mainly used for gold extraction by carbon slurry method and heap leaching method, and separation and extraction of precious metals in the metallurgical industry. After repeated experiments by experts, it is concluded that coconut shell activated carbon has a strong adsorption of gold ions in the cyanide leaching solution, and the adsorption speed is very fast. The amount of gold on the activated carbon is determined by the gold content in the leaching solution, and the gold loading can be as high as 15kg/t. The residual night concentration of the leachate after being adsorbed by activated carbon is mainly determined by the concentration of the original solution. Increasing the number of adsorption stages is a very important factor to reduce the residual night concentration.  [View Answers]
What do you think is the most effective use of activated carbon0dingxinda92021-03-09 21:49:23
Activated carbon is a kind of very fine carbon particles with a large surface area, and there are finer pores in the carbon particles-capillary. This kind of capillary has a strong adsorption capacity, due to the large surface area of the carbon particles,activated charcoal cost Therefore, it can fully contact with the gas (impurity). When these gases (impurities) hit the capillary, they are adsorbed and play a purifying effect. According to the "Cihai" explanation, activated carbon is a porous carbon with a large surface area, which is obtained by dry distillation of wood, hard nut shells or animal bones and treatment with superheated steam at high temperatures (800℃-900℃). It is mainly used for gas adsorption, decolorization and solvent recovery, etc. It is also a material in gas masks. Medicinal activated charcoal is used as an adsorbent for oral administration and is used for the treatment of diarrhea and poisoning. To put it bluntly, activated carbon can absorb peculiar smell, smoke and exhaust gas. Activated carbon is widely used in daily life. For example, refrigerator air conditioners use activated carbon filters in deodorizing, anti-bacterial and anti-bacterial aspects. The activated carbon filter with high-tech content can also capture and inhibit viruses in the air, so that the indoor air is always fresh and pure. The purified water we drink directly is the advanced treatment process of ozone disinfection and activated carbon filtration adopted by the water plant to make the water quality reach the standard of direct drinking water purification.https://www.dxdcarbon.com/   The gas mask uses live charcoal to absorb poisonous gas, and when the swimming pool changes water, it also uses activated charcoal to filter impurities. In terms of beauty, the activated carbon facial cleansing formula, which is very popular in the world in recent years, is said to be able to absorb the dirt that hides in the pores like a magnet.  [View Answers]
How to regenerate coconut shell activated carbon in brine0dingxinda92021-03-09 21:48:09
Coconut shell activated carbon is a kind of activated carbon with good effect and high quality among activated carbon products, so its price is also expensive. yongruida coconut carbon   Due to the characteristics of activated carbon itself, coconut shell activated carbon can be regenerated. A commonly used method is heating, but this method is only suitable for decolorizing coconut shell activated carbon, which is useless for water purification coconut shell activated carbon. Coconut shell activated carbon has a black appearance, granular and columnar. activated carbon suppliers usa  It has the advantages of developed voids, good adsorption performance, high strength, easy regeneration, economy and durability. The product is mainly used for deodorization, drinking water filtration, etc. Brine regenerated activated carbon is mainly to replace the adsorbed substances. But generally speaking, this kind of regeneration effect is not obvious, and it will not be as thorough as the regeneration of exchange resin. In most cases, the activated carbon can also be washed in the early stage, and replaced in the later stage. Small bubbles are normal. Regardless of the adsorption effect of coconut shell activated carbon itself, any powdery substance, after you put it in a liquid, you will find a little bubble attached to it. Compared with the salt water regeneration method, the ion exchange resin regeneration method has a much higher cost. Therefore, it is more common to regenerate coconut shell activated carbon with salt water.  [View Answers]
Characteristics of coal-based activated carbon for water purification02021-03-09 21:46:50
There are many kinds of coal-based activated carbon for water purification, among which the commonly used are coal-based columnar activated carbon, coal-based granular activated carbon, coal-based powdered activated carbon, and coal-based spherical activated carbon. Most of the coal-based activated carbon used for water purification is refined from selected anthracite coal as raw materials.activated charcoal wholesale supplier   It has the characteristics of large specific surface area, developed pore structure, fast adsorption speed and easy regeneration. It is mainly used for benzene, toluene, xylene, and ether. , Alcohols, gasoline, trichloromethane, tetrachloromethane, acetone and other organic solvents, as well as hydrocarbon compound vapor recovery. Activity means that the fluid mixture passes through the coal-based activated carbon bed, where the adsorbate is adsorbed. website  After some time of operation, the fluid flowing out of the coal-based activated carbon bed begins to contain a certain amount of adsorbate, indicating that the coal-based activated carbon bed has lost its adsorption capacity At this time, the amount of adsorbate that has been adsorbed on the activated carbon is called the activity of the activated carbon. Important data required for adsorption system. The standard practical method for determining the adsorption capacity of coal-based activated carbon by the liquid phase isotherm method can be used to determine the adsorption capacity of original and reactivated and powdered activated carbon.   [View Answers]
The function and storage of powder activated carbon0dingxinda92021-03-01 01:05:33
Powdered activated carbon is refined from fruit shells and sawdust. The appearance is black fine powder, non-toxic and tasteless, with large specific surface area and strong adsorption capacity. It is suitable for water quality such as sugar, pharmaceuticals, beverages, and alcohol. wholesale carbon pellets   In the purification industry, it is also widely used in the decolorization, refining, purification and sewage treatment of organic solvents. Powdered activated carbon is used for decolorization, impurity removal and refinement of medicine, food additives, monosodium glutamate, chemical industry, beverages and other products, and is suitable for water purification treatment. Powdered activated carbon is used in the food industry to decolorize sugar, glutamic acid and salt, lactic acid and salt, citric acid and salt, wine, seasonings, animal and plant proteins, biochemical products, pharmaceutical intermediates, vitamins, antibiotics and other products. Refining, deodorizing and removing impurities. Powdered activated carbon is used for the decolorization of medicines, with strong decolorization power and fast filtration rate.chengde wanyang activated carbon factory  It is suitable for the decolorization and refining of medicines, pesticides, and traditional Chinese and Western medicines. The specific storage method of powdered activated carbon is as follows: it should be stored in a dry place, not with toxic, harmful or irritating things, and regularly check whether the packaging is damaged, to avoid affecting the adsorption effect of the product, and so on. [View Answers]
What is the role of powdered activated carbon in water treatment0dingxinda92021-03-01 01:04:46
Generally, activated carbon for water treatment is nothing more than nut shell activated carbon, coconut shell activated carbon, powdered activated carbon, and columnar activated carbon. These types of activated carbon can be used in water treatment, which can play a role in deep purification of water quality. Filter tanks use granular activated carbon to purify water. Compared to if shell activated carbon, coconut shell activated carbon and coal columnar activated carbon, this type of activated carbon has strong adsorption capacity and low ash content.  bulk activated charcoal pellets   Another point is that it can be filled into the container to filter and use. More convenient. Powdered activated carbon is suitable for the purification and decolorization of colored sewage. When the water is colored, granular activated carbon can remove part of the color, but it is difficult to remove it completely. At this time, powdered activated carbon is needed for treatment. The powdered activated carbon has a huge pore structure that can absorb the colors in the water while also adsorbing organic matter and harmful bacteria in the water. activated coconut charcoal powder It is just that the powdered activated carbon needs to be added when it is used. After thorough mixing, the filtered powdered activated carbon is finally removed. The procedure is more cumbersome compared to other activated carbons. However, the purification and decolorization ability of powdered activated carbon is much better than that of other activated carbons. Generally, powdered activated carbon is used for decolorization of food, wine, and medicine.  [View Answers]
The difference in the degree of hydrolysis of ultra-high molecular weight PAM0dingxinda92021-03-01 01:03:55
Polyacrylamide is a linear polymer, and its products are mainly divided into two types: dry powder and colloid. According to its average molecular weight, it can be divided into three types: low molecular weight, medium molecular weight and high molecular weight. The degree of hydrolysis of polyacrylamide refers to the ability of the weak ions in the polyacrylamide solution to combine with water to form a weak alkali or weak acid, or the strength of the weak acid and the weakening of the polyacrylamide aqueous solution.  For polyacrylamide, because of its inherent characteristics of structure and physical properties, it is prone to degradation and cross-linking reactions. anionic polyacrylamide suppliers   For ultra-high molecular weight polyacrylamide, mechanical degradation, chemical degradation, thermal degradation and other reactions are more likely to occur, resulting in a decrease in molecular weight. Generally speaking, the higher the molecular weight of polyacrylamide, the worse its anti-mechanical function. When the molecular weight of polyacrylamide is required to be as high as 20 million, it should be broken during the hydrolysis reaction, so that it can fully integrate with the hydrolysis agent. , Make the hydrolysis reaction proceed evenly. Regardless of which molecular weight polyacrylamide is used, it is necessary to pay attention to detailed application and detailed analysis. wholesale polyacrylamide  Select the polyacrylamide with suitable molecular weight. The higher the better, it does not have to be dissolved and put into use, otherwise it will affect the application. [View Answers]
What is the difference between coconut shell activated carbon and columnar activated carbon?02021-02-02 17:57:10
1. First of all, it is clear from the appearance that the columnar activated carbon has the appearance of black cylindrical particles. coconut shell activated carbon for gold recovery The appearance of coconut shell activated carbon is black amorphous granular. 2. The difference between columnar activated carbon and coconut shell activated carbon in terms of material. The columnar activated carbon is made of fine anthracite as raw material and refined by advanced technology. Coconut shell activated carbon is made of fine coconut shell through a series of production processes. 3. Columnar activated carbon and coconut shell activated carbon have different physical and chemical indicators and components. Coconut shell activated carbon and columnar activated carbon can also be used for the purification of toxic gases, waste gas treatment, industrial and domestic water purification, solvent recovery, etc. buy bulk activated carbon pellets Based on the standards produced by activated carbon manufacturers, which one to choose depends on the needs of users and the scope of use. 4. The price of columnar activated carbon and coconut shell activated carbon can be said to be very different. Compared with coconut shell activated carbon with the same effective content or composition, the price of coconut shell activated carbon is much higher than that of columnar activated carbon.  [View Answers]
How to use water purification activated carbon correctly02021-02-02 17:55:59
1. Before using activated carbon for water purification, we must clean and remove dust, otherwise the dust will directly affect the cleanliness of water quality.activated charcoal wholesale uk  It is recommended not to rinse with fresh tap water, because the porous in activated carbon for water purification once adsorbs a large amount of tap water. Bleaching powder, then placed in the filter, will cause a certain degree of damage to the water quality. 2. If we only simply clean, there is no way to clean the impurities in the porous activated carbon for water purification, so we must replace the activated carbon every once in a while to prevent the activated carbon from losing its adsorption effect due to saturation. The general replacement time is about once or twice a month, so as to ensure that the activated carbon can continuously remove the harmful substances in the water. 3. When a quantitative water purification activated carbon is used, we can observe whether the water quality has changed at the beginning of use, and pay attention to the results. When it is judged that the water purification activated carbon has lost its effect, it can be replaced as a basis.https://yrdcarbon.com  4. When we put some medicines to treat fish diseases, we should take out the activated carbon for water purification temporarily to prevent the medicine from being affected by the adsorption capacity of the activated carbon.  [View Answers]
Effect of coal based columnar activated carbon on water & air purification2dingxinda92021-01-21 03:38:10
Coal-based columnar activated carbon is a small helper for sewage and wastewater treatment, and it is cylindrical granular. Its use quickly spreads to remove harmful odors in the water. Its unique ability to attract and trap chemical substances makes activated carbon play an important role in protecting the environment. And what role does coal-based columnar activated carbon play in water treatment and air purification? Coal-based columnar activated carbon can be used at multiple levels in the water treatment process to filter domestic drinking water, remove organic matter, pesticides and herbicides and other pollutants. Coal-based columnar activated carbon also plays an important role in the treatment of industrial wastewater. yongruida active carbon pellets    It can remove dangerous organic and harmful odor-producing substances, and make waste return to a safe state before disposal or reuse. Coal-based columnar activated carbon is used in water treatment. Aspect application. The coal-based columnar activated carbon also plays an important role in air purification. Just move to a new home to remove formaldehyde. There are peculiar smells and smoke in the car. It can also be used to prevent moisture on wooden floors. Coal-based columnar activated carbon has strong adsorption properties and can absorb all kinds of harmful substances and give us fresh air. coconut shell activated carbon product Now you understand what role the wooden columnar activated carbon plays in water treatment and air purification?  [View Answers]
Application of activated carbon in advanced treatment of coal gasification wastewater0dingxinda92021-01-18 18:39:13
The discharge of coal gasification wastewater has high requirements for water quality indicators. It is difficult for general biochemical treatment methods to meet the requirements of effluent indicators. It must be further processed to meet the standards, which is the so-called advanced treatment. yongruida activated charcoal pellets  At present, more advanced wastewater treatment processes are mainly used Ozone oxidation method, ultraviolet method, advanced oxidation method, etc. The biological aerated filter process (BAF) with activated carbon as the filter material has been widely used in coal gasification wastewater, and the treatment effect is being affirmed by professionals. The main process flow includes: A/O process + BAF. BAF can not only play the role of filtration, but also process coal gasification through microbial membrane formation. Activated carbon is the main carrier of filtration and membrane formation in BAF. Its characteristics of large voids and large specific surface area and strong adsorption capacity provide this process. Good material. The commonly used filter materials for biological aerated filter generally include ceramsite volcanic rock, Pall ring, Raschig ring and other filter materials. Volcanic rock is effective as a filter material but has limited resources and higher costs, while ceramsite and other filter materials are not as effective as activated carbon. In comparison, activated carbon has certain advantages in the application of BAF, especially the newly developed activated carbon has certain price advantages, but the effect needs to be tested.https://www.powdered-activated-carbon.com/  Activated carbon also has important applications in the treatment of coal gasification wastewater reuse. It is mainly used in the filter in front of the reuse process ultrafiltration, nanofiltration or reverse osmosis equipment to remove organic matter, suspended matter, free chlorine and other substances in the water. Activated carbon also has certain applications in the defoaming of biological foam.  [View Answers]
Application of activated carbon in advanced treatment of coal gasification wastewater0dingxinda92021-01-18 18:37:52
The discharge of coal gasification wastewater has high requirements for water quality indicators. It is difficult for general biochemical treatment methods to meet the requirements of effluent indicators. It must be further processed to meet the standards, which is the so-called advanced treatment. At present, more advanced wastewater treatment processes are mainly used Ozone oxidation method, ultraviolet method, advanced oxidation method, etc.https://www.powdered-activated-carbon.com/  The biological aerated filter process (BAF) with activated carbon as the filter material has been widely used in coal gasification wastewater, and the treatment effect is being affirmed by professionals. The main process flow includes: A/O process + BAF. BAF can not only play the role of filtration, but also process coal gasification through microbial membrane formation. Activated carbon is the main carrier of filtration and membrane formation in BAF. Its characteristics of large voids and large specific surface area and strong adsorption capacity provide this process. Good material. The commonly used filter materials for biological aerated filter generally include ceramsite volcanic rock, Pall ring, Raschig ring and other filter materials.yongruida activated charcoal pellets   Volcanic rock is effective as a filter material but has limited resources and higher costs, while ceramsite and other filter materials are not as effective as activated carbon. In comparison, activated carbon has certain advantages in the application of BAF, especially the newly developed activated carbon has certain price advantages, but the effect needs to be tested. Activated carbon also has important applications in the treatment of coal gasification wastewater reuse. It is mainly used in the filter in front of the reuse process ultrafiltration, nanofiltration or reverse osmosis equipment to remove organic matter, suspended matter, free chlorine and other substances in the water. Activated carbon also has certain applications in the defoaming of biological foam.  [View Answers]
How to invest and choose coal-based carbon0dingxinda92021-01-18 18:36:29
For a water plant or a drinking water technological transformation project, when the advanced treatment project or emergency engineering operation planning is carried out, the investment budget of coal-based activated carbon is the investment budget of coal-based activated carbon that is placed in front of designers and decision makers.  The investment and selection of coal-based activated carbon are generally carried out through bidding.  activated carbon bulk canada  According to the current bidding documents in various places, there are some problems: First, one-sided pursuit of high indicators. The indicators here mainly refer to the iodine value, methylene blue adsorption value, and phenol of coal-based carbon. Adsorption value, ash content, etc. The second is not to do detailed simulation experiments to remove organic matter from local water quality, and choose the carbon type and carbon type for granted. As a result, the above-mentioned problems caused a large investment and the treatment results were not satisfactory. As we all know, activated carbon iodine value, methylene blue adsorption value, and phenol adsorption value only represent the adsorption capacity of activated carbon for iodine molecules, methylene blue molecules, and phenol molecules. yongruida activated charcoal  The minimum pore size of activated carbon that adsorbs iodine is 1.0nm, and the minimum pore size of activated carbon that adsorbs methylene blue is 1.5nm, both of which belong to the microporous adsorption range of activated carbon. Natural organic matter in natural water is a mixture of many different organic matter, such as humus, hydrophilic acids, proteins, lipids, carbohydrates, hydroxy acids, amino acids, etc. The molecular size is between 0.5~400nm, so one-sided pursuit of high iodine Value and methylene blue value only indicate that the micropores of activated carbon are well developed, and the removal effect of organic matter is not ideal.   [View Answers]
What is the chemical adsorption of columnar activated carbon0dingxinda92021-01-10 23:26:18
In physics, activated carbon is fused with raw materials based on intermolecular force or London dispersion force. Activated carbon cannot be effectively combined with certain compounds, including alcohols, alcohols, ammonia, strong acids and alkalis, metals and most inorganic compounds such as lithium, sodium, iron, lead, arsenic, fluorine and boric acid. Activated carbon can absorb iodine well. In fact, the iodine value mg/g (ASTM D28 standard method test) is used as an indicator of total surface area. silver loaded activated carbon  Activated carbon can be used as a substrate of various chemicals to improve its adsorption capacity for some inorganic (and organic) compounds, such as hydrogen sulfide (H2S), ammonia (NH3), formaldehyde (hcoh), mercury (Hg) and radioisotope iodine -131 (131I). This property is called chemical adsorption. Chemical activation of activated carbon: first impregnate with phosphoric acid or potassium hydroxide, sodium hydroxide or zinc chloride, and then carbonize in the range of 450-900°C. It is believed that the carbonization activation process and the chemical activation process proceed simultaneously. In some cases, this technique may be problematic, for example, trace amounts of zinc may remain in the product. However, chemical activation of activated carbon is better than physical activation because the temperature required to activate the material is lower and the time required is shorter.https://www.wyactivatedcarbon.com/   Activated carbon can be used as a substrate of various chemicals to improve its adsorption capacity for some inorganic (and organic) compounds, such as hydrogen sulfide (H2S), ammonia (NH3), formaldehyde (hcoh), mercury (Hg) and radioisotope iodine -131 (131I). This property is called chemical adsorption.  [View Answers]
Reasons for the price difference of activated carbon0dingxinda92021-01-10 23:24:24
Many customers report that the prices of activated carbon on the market and the fields in which it is used are quite different. Of course, some products look very similar, but their prices are very different when they are purchased. Why is there such a big difference in the price of activated carbon? A large part of the reason why the price of activated carbon is different is that its quality has a lot to do with it. granular activated carbon (gac)  Columnar activated carbon, granular activated carbon and other coal-based activated carbon materials are relatively simple, and the iodine value of the burned shaped carbon is not high, so its price is slightly lower. The raw materials of nut shell activated carbon and coconut shell activated carbon are natural coconut shells. Because coconut shells are in short supply in my country, most of them are imported from Southeast Asia. The price of nut shells and coconut shell activated carbon is naturally high.  The use of activated carbon is also another factor in the price fluctuations of activated carbon. The application of activated carbon is mostly reflected in two aspects, water purification and air purification. Even if it is the same activated carbon for water purification, the standards and requirements for activated carbon are different. www.coalactivatedcarbon.com  For example, activated carbon for drinking water treatment and activated carbon for industrial wastewater treatment. Due to the higher requirements and quality of drinking water, wastewater treatment The activated carbon standard is a little lower, so the price is also very different. Therefore, if you simply look at the price of activated carbon without understanding the specific effects and application of the product, it is still difficult to achieve the initial desired results. For consumers, the impact caused by this is great. [View Answers]
Characteristics of nutshell activated carbon0dingxinda92021-01-04 00:08:17
1. Catalytic characteristics: Because a complex is formed between the nutshell activated carbon and the support, this complex catalyst greatly increases the catalytic activity. The activated carbon is accompanied by catalytic reactions in many adsorption processes, which reflects the activity of the catalyst.  powdered activated carbon pac  The presence of oxygen-containing compounds or complexes with specific appearance has catalyst activity for various reactions. Developed pore structure, great internal and external product, good heat resistance, acid resistance, alkali resistance, can be used as a catalyst carrier. 2. Mechanical characteristics: particle size, bulk density, bulk density and particle density, strength, wear resistance. These mechanical properties directly affect the application of activated carbon from the shell. 3. Chemical characteristics: The adsorption of activated carbon from the shell depends on both the pore structure and the chemical composition. Nutshell activated carbon contains a small amount of oxygen and hydrogen that are chemically combined and functional groups are activated.activated carbon pellets for air filter uk  Some of the oxides and complexes contained in the appearance are derived from raw materials, and some are generated by the action of air or water vapor during and after activation. Occasionally, appearance sulfides and chlorides are generated. In the activation, the minerals contained in the material are concentrated in the activated carbon to become ash. The important components of the ash are the salts of alkali metals and alkaline earth metals. These ash contents can be reduced by washing or pickling. 4. Adsorption characteristics: Nutshell activated carbon is a very small carbon particle with a large appearance, and there are even more tiny pores in the carbon particle-capillary. This kind of capillary has a strong adsorption capacity, because the carbon particles have a large appearance, so they can fully contact with gas (impurities). When these gases (impurities) encounter the capillary, they are adsorbed and act as purification.  [View Answers]
Modification of activated carbon as a catalyst0dingxinda92021-01-04 00:07:18
During the World War, because the German army used chlorine gas (1915) in the war, countries around the world began to study activated carbon for gas masks. coconut shell activated carbon for gold recovery  Meanwhile, it was discovered that activated carbon impregnated with metal salts can accelerate the decomposition of toxic gases, thus pioneering the study of activated carbon as a catalyst carrier. Heat treatment of activated carbon in isolation of air or inert gas is an important way to modify activated carbon. At high temperatures, the degree of graphitization of activated carbon increases, while the appearance of heteroatom groups will be cracked, and the hydrophobicity and alkalinity of activated carbon will increase. As usual, the carboxylic acid group of activated carbon decomposes at a lower temperature while releasing carbon dioxide, while the phenolic hydroxyl, ether, carbonyl group and other groups decompose at a higher temperature to release carbon monoxide. The chemical modification of activated carbon is important to change the groups and group distribution of the appearance of activated carbon, thereby changing the properties of activated carbon such as adsorption and catalysis.https://chinactivecarbon.com  Activated carbon is often used as a catalyst carrier in the chemical industry, that is, catalytically active substances are deposited on the activated carbon and used as a catalyst all the way. At this time, the role of activated carbon is not limited to supporting the activator, it has a huge impact on the activity, selectivity and service life of the catalyst, and has a catalytic effect.  [View Answers]

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