Coal-based powdered activated carbon related questions

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Coal-based powdered activated carbon02021-04-15 00:03:58
Because activated carbon has numerous small pores, large surface area, strong adsorption capacity, can adsorb a variety of organic compounds, widely used in pharmaceutical industry and chemical industry.fused alumina manufacturer  Especially in the field of medicine, activated carbon, as a highly effective gastrointestinal cleaning agent, can effectively adsorb pesticide residues, fungicides, heavy metals, dioxins, various pathogenic bacteria and toxins in the digestive tract and human body that damage human health or cause disease wastes, harmless to human  With the rapid development of pharmaceutical preparation industry and primary molecular material industry, the microencapsulated activated carbon products coated with polymer materials have been successfully trial-produced in foreign countries, and applied in clinical practice, the medical care and treatment effect is very good, many of them have been put into the market, and have achieved good economic and social benefits. It is worth noting that there is a shortage of activated carbon in China. For a long time, the production of drugs using activated carbon as raw materials has been kept in the laboratory, and no products have been marketed or used in clinical trials. Experts said that with the continuous improvement of people's life quality and health care consciousness enhancement, as well as the rapid development of all kinds of industrial, environmental pollution has been increasingly serious, people an opportunity to contact with a variety of harmful material, activated carbon and activated carbon as the leading raw material to produce medicines and health products, medical market will become a major conventional leading consumer products, 
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.  
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? 
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.  
Wastewater treatment technology of powdered activated carbon02020-10-27 01:05:13
Powdered Activated Carbon Treatment (PACT) is a wastewater technology in which powdered activated carbon is added to an anaerobic or aerobic treatment system.carbon activated manufacturer  The carbon in the biological treatment process adsorbs recalcitrant compounds that are not readily biodegradable, thereby reducing the chemical oxygen demand of the wastewater and removing toxins.The carbon also acts as a "buffer" against the effects of toxic organics in the wastewater. In such a system, biological treatment and carbon adsorption are combined into a single, synergistic treatment step.The result is a system which offers significant cost reduction compared to activated sludge and granular carbon treatment options. The addition of the powdered activated carbon stabilizes biological systems against upsets and shock loading, controls color and odor, and may reduce disposal costs while removing soluble organics. In an aerobic treatment system, influent first enters an aeration tank where the powdered carbon is added, making up a portion of mixed liquor suspended solids. pellets activated carbon Once the aeration is completed, the treated wastewater and the carbon-biomass slurry are allowed to settle.In cases where complete solids separation is needed, such as for reuse, an MBR may be used in place of the clarifer. Following treatment, a portion of the carbon and biomass slurry is wasted to solids handling. Due to the presence of the powdered activated carbon, the sludge settles, thickens, and dewaters better compared to conventional activated sludge processes. These solids can be wasted and disposed of as a slurry, dewatered to a compact, stable cake, or pumped as a slurry to a wet air oxidation unit for further processing to regenerate the carbon and destroy the biological solids.
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. 
The coal texture of activated carbon02022-01-11 22:06:11
Activated carbon (AC) is a kind of porous carbon material with developed pore structure and large specific surface area, which is prepared by using biological organic matter (such as wood, coke, petroleum coke, coal and various nut shells, etc.). It is a kind of high quality adsorption onto activated carbon  With the development of industry, its application is more and more extensive.activated carbon manufacturers uae   At present, it has been widely used in the field of environmental protection, food industry and medicine. Industry, agriculture and many other fields. In recent years, one of the research hotspots of activated carbon is to use cheap agricultural and forestry wastes as raw materials and simple and clean process to prepare biomass activated carbon with high economic benefit and good adsorption performance. If the agricultural and forestry wastes are effectively utilized and turned into treasures, it can not only create certain economic benefits, but also reduce its pollution to the environment, and achieve the purpose of treating waste with waste. In this paper, using biomass (corn cob, rice husk and peanut shell) as raw material, the experimental research on the preparation of activated carbon from biomass was carried out on the self-built experimental platform, and the activation temperature, activation time, impregnation ratio and impregnation time and other activation and physicochemical characteristics were systematically studied. 
Number of coal particles of activated carbon0CLMnb2021-08-26 20:51:58
Acid-base modification is to use acid, alkali and other substances to treat activated carbon, according to the actual need to adjust the surface functional groups of activated carbon, make it change, coal based granular activated carbon improve its ability of adsorption of metal ions, so as to achieve the desired adsorption effect.Acid-base modification of activated carbon is usually carried out to improve the adsorption effect of activated carbon on metal ions represented by copper ions. The commonly used modifiers include HC1, NaOH and citrate 3.It was found that by acid-base modification of common coal activated carbon, the ash content of the activated carbon could be greatly reduced and the specific surface area of the activated carbon could be increased 
Ding Xinda activated carbon coal shape02022-01-11 22:50:39
Fir chip as the raw materials, H - POs as activator, using single factor analysis and orthogonal experimental design method, this paper discusses the influence granular activated carbon pore structure and the iodine adsorption value, methylene blue and strength of various preparation factors, determine the optimum process conditions of preparation of granular activated carbon phosphoric acid, phosphoric acid concentration is 70%, dipping 180%, kneading temperature is 170 ℃, for 60 min kneading time, activation temperature is 350 ℃, the activation time of 210 min.  The iodine adsorption value, methylene blue adsorption value, imagitarium activated carbon pellets strength and BET specific surface area of GAC were 1020.04mGG, 225mg/g, 88.73% and 1486.48m2/g respectively. The experimental results show that the impregnation ratio and carbon activation temperature have great effects on the adsorption performance of GAC, while the kneading temperature and impregnation ratio have great effects on the strength of GAC. Because the strength of GAC decreases with the increase of impregnation ratio, and the decrease range is large, so the preparation of GAC with compound activator is proposed. The results show that the composite activator can reduce the impregnation ratio of phosphoric acid to wood chips and improve the strength of granular activated carbon. At the same time, the composite activator can improve the adsorption performance of GAC. Therefore, granular activated carbon with good adsorption performance and high strength can be prepared by this method. 
Introduction to the application of coal columnar activated carbon02020-12-09 22:33:15
Using anthracite as a raw material, processing through a unique production process, and then through molding and other procedures, a black cylindrical granular activated carbon can be produced. This activated carbon product is a coal-based columnar activated carbon.  Nowadays, activated carbon is used very much, and it is used in various fields. It has brought great help to our country's industrial production and also made a very important contribution to environmental protection. granular activated carbon manufacturers   The coal-based columnar activated carbon produced by our company is also used a lot, the effect is very good, and it is used in many industrial production. For example, the effect is very prominent in the fields of wastewater treatment and waste gas treatment, and the amount of use is also large.  Traditional coal-based columnar activated carbon uses anthracite as the raw material, and is then produced through the steps of crushing, forming, carbonization and activation, but our company now uses very advanced technology, using high-quality coal raw materials. After production, the activated carbon is produced The product is even better. Although there is no big difference in appearance, they are all black cylindrical particulate matter, but our company’s products have a more reasonable microporous structure. Products of the same volume can absorb more impurities, so the adsorption function is better than Other products are stronger. Moreover, this activated carbon product has high mechanical strength, can be used repeatedly, and the price is relatively much cheaper.  This coal-based columnar activated carbon can be used in a wide range, for example, it can be used in many fields for water treatment. powdered carbon For example, tap water treatment, industrial wastewater treatment, beverage production, etc., will all use activated carbon products. In the field of air treatment, its importance is self-evident. For example, the purification of industrial waste gas, the recovery of toxic gases, and the separation of some oil and gas mixtures, etc., require a very large amount of activated carbon.  In fact, there are many types of coal-based columnar activated carbon, such as ordinary activated carbon, which is used in industrial waste gas treatment and wastewater purification. The slightly better one can be used for the treatment of drinking water and the recovery of impurities in the wastewater of electronic factories, and it can also be used for the decolorization of chemical raw materials. The effect is also very significant. Good activated carbon products can be used in the food industry, because this industry has very high requirements and requires the use of higher-level products.  In fact, whether it is coal-based columnar activated carbon or wood, their essence is the same, but the raw materials are different, so the price and cost are different, and the adsorption performance is also different, so when we buy it, we choose according to personal needs and use environment.
Number of coal particles and purification capacity of activated carbon02021-08-26 23:02:37
Main uses of activated carbon: 1. Used for liquid phase adsorption of activated carbon · Tap water, industrial water, electroplating wastewater, pure water, beverage, food, medicine water purification and preparation of electronic ultra-pure water. · Decolorization, purification and purification of sucrose, xylose, monosodium glutamate, medicine, citric acid, chemical products and food additives · Decolorization, impurity and flavor removal of grease, oil products, gasoline and diesel oil, purification, deodorization and impurity removal of alcohol and beverages · Purification, refining, decolorization and filtration of products in fine chemical, pharmaceutical and pharmaceutical processes. Environmental protection engineering wastewater, domestic wastewater purification, decolorization, deodorization, COD reduction 2. Used for gas phase adsorption of activated carbon · Adsorption and recovery of benzene, toluene, xylene, acetone, oil and gas, CS2 and other organic solvents. · Non-smoke filter, decoration odor removal, indoor air purification (removal of formaldehyde, benzene, etc.), industrial gas purification (such as CO2, N2, etc.) Petrochemical industry production, natural gas purification, deodorization, deodorization, waste gas treatment · Air 'i purification and deodorization in biochemical, paint industry, underground places, leather factories and animal feeding places. · Adsorption of odor and sulfide in flue gas, removal of mercury vapor, and reduction of generation of dioxin. 3. Active carbon used in high demand fields Catalyst and catalyst carrier (palladium carbon catalyst, nail carbon catalyst, money carbon catalyst, platinum carbon catalyst), precious metal catalyst and synthetic diamond, gold extraction. Blood purification, automotive carbon tank, high-performance fuel cell, double electric layer super capacitor, lithium battery anode materials, energy storage materials, military, aerospace and other high-demand fields. 
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.  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. 

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