Number of coal particles and purification capacity of activated carbon related questions

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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. 
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 
Air purification capacity of activated carbon02021-08-29 23:52:21
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, 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  Using small activated carbon fixed bed adsorption gas phase dioxin test bench, a typical activated carbon adsorption dioxin factors affecting the experimental study, discusses the types of dioxin adsorption activated carbon and activated carbon fixed bed adsorption gas phase characteristics of dioxins, and discusses the adsorption temperature and adsorption time of activated carbon adsorption of dioxins.The results showed that the specific surface area and micropore volume of activated carbon had weak correlation with the adsorption efficiency of dioxins. The mesopore volume of activated carbon is an important factor to determine the adsorption capacity of dioxins. The surface area of the pore size between 2 nm and 20nm plays a key role in the adsorption of dioxins.The higher the adsorption temperature, the lower the adsorption efficiency of activated carbon.The longer the adsorption time, the lower the adsorption efficiency of activated carbon.There is no selective adsorption of gaseous dioxins in activated carbon fixed bed coal based granular activated carbon 
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? 
Ding Xinda activated carbon purification and decomposition of specific surface area adsorption capacity0CLMnb2021-12-06 22:49:48
The preparation methods of activated carbon include physical method, chemical method, microwave radiation method, etc.(1) Physical method.activated carbon from china   Physical method is to use carbon dioxide, water vapor or the mixture of both as activator, the carbonized carbon material and gas in the activation furnace at 500~1200℃ for carbon activation reaction, so that the pore size of the carbonized material to expand, the formation of activated carbon with porous microcrystalline structure.Gas activation method mainly includes carbonization and activation engineering.The so-called carbonization, refers to the low temperature (about 500℃) is small, the volatile coal tar molecules in the material and the thermal decomposition and curing process of asphalt, that is, to remove the volatile in advance, made suitable for the next step of activation with coconut shell activated carbon  When the temperature is below 600℃, the specific surface area of carbonized material increases with the increase of temperature.When 600~900℃, the specific surface area reaches a certain value: 250~300 m2/g; when above1000℃, the specific surface area shrinks rapidly. When the carbonization temperature is above 800℃, the reaction performance of carbonized compounds and activation gas gradually becomes weaker, so the carbonization temperature is generally below 1000℃. However, if the residual volatile content and thermal effect are taken into account, the most suitable temperature should be 600~700℃39]. The carbonized substance obtained from the carbonization process is placed in water vapor or a mixture of water vapor and combustion gas and heat treated at 800~1000℃, which is called the activation process. The commonly used activation gases are carbon dioxide, water vapor, oxygen, etc., due to the oxidation reaction of these gases on the surface of the carbonized substance, eroding the carbonized substance, thus producing a rich porous structure.(2) Chemical method. Chemical activation method is a method of preparing activated carbon by adding chemicals to the raw materials used or impregnation into the raw materials or carbonized materials, and then heating it at high temperature in inert gas.The chemicals used in chemical activation are generally dehydrating.The more commonly used activator is: inorganic acid varieties have phosphoric acid, sulfuric acid and boric acid, salt varieties have zinc chloride, calcium carbonate and potassium sulfate, alkali varieties have sodium hydroxide, potassium hydroxide, etc. 
Activated carbon strong adsorption capacity and cleaning capacity02021-08-31 20:11:21
Adding appropriate chemical reagents will play the role of catalytic oxidation [73], and these chemical reagents will also increase the active point of activation reaction, which is conducive to the development of activated carbon pores.  Now at home and abroad the main research work is mainly the following aspects: a, additive in the functional mechanism of manufacturing activated carbon energy gao jun of China university of mining mechanism of additives in the manufacturing activated carbon made detail [4, pointed out that: the catalyst in the carbonization stage prompted carbon the destruction of the molecular structure of aromatic raw materials, to "structure" of disordering, provides a good initial activation reaction conditions, is an important factor to improve the activation of activated carbon pore. In the process of activation, potassium to strengthen the directionality of the pore, thereby reducing the unnecessary on ignition, and accelerated the process of pore forming,coal based granular activated carbon  And pore distribution is given priority to with microporous activated carbon; refractory in the catalyst to ash content of SiO2 and Al, 03, etc, into acid soluble potassium nepheline chemical compounds such as magnesium and calcium silicon stone is the key to improve pickling deliming rate factor b and additives on the activated carbon adsorption properties, pore structure and pore size distribution - adding different additives. The influence of the activated carbon: c, chemicals for coking products. 
Activated carbon air purification and water purification02021-08-30 00:09:15
Increase the number of activated carbon mesh and millimeter corresponding table content and related websites. It's not advertising. It's a lot of help to consumers. Now activated carbon is in accordance with the eye, but we do not know that the eye can be changed into  Activated carbon is widely used in all aspects of industrial and agricultural production, such as the petrochemical industry without alkali deodorization (refined demercaptan), ethylene desalting water (refined filler), catalyst carrier (palladium, sales, men, etc.), water purification and sewage treatment; Water quality treatment and protection of power plants in the power industry; Chemical industry of chemical catalyst and carrier, gas purification, solvent recovery and oil and other decolorization, refining; Food industry beverage, wine, MSG mother liquor and food refining, decolorization; Gold extraction and tailings recovery in the gold industry; Environmental protection industry sewage treatment, waste gas and harmful gas treatment, gas purification; As well as related industries of cigarette filter, wood floor moistureproof, taste absorption, automobile gasoline evaporation pollution control, the preparation of various impregnation liquid, etc. Activated carbon in the future will have excellent development prospects and broad sales market. pelletized activated carbon 
The carbon capacity of activated carbon and the amount of layer02021-09-14 01:00:49
Water purification, can remove the organic matter and heavy metal ions and mildewy odor, bacteria and used in water decolorization, used in drinking water industry, beverage, beer, medicine, sugar and other industries water purification, decolorization process and pure water, direct drinking water production equipment;Sewage treatment: can be used to treat the chemical industry, electroplating, metallurgy, printing and dyeing, leather, medicine and other sources of sewage, the removal of organic materials, bacteria and organic dyes in the water.Especially the treatment of toxic and harmful wastewater containing high metal ions;Organic solvent recovery: to benzene, ketone, fat, alcohol and other types of organic solvents can be adsorbed recovery;It can be used in solvent recovery devices such as glue spray paint and film, in benzene purification and recovery devices and in environmental protection projects of waste gas and sewage treatment.Health and anti-expansion: made of gas masks, gas and dust masks, gas jackets can have good adsorption and shielding effect on toxic gases  The selection of treatment technology should be based on the gas volume, purification requirements, the possibility of recovery, the economy of equipment construction and operation and other conditions. Special attention should be paid to the close cooperation with the process in practical work, so as to achieve comprehensive utilization as far as  At present, there are three common methods of organic waste gas treatment at home and abroad: liquid absorption method, activated carbon adsorption method and catalytic combustion method. pelletized activated carbon  
Purification of activated carbon02021-12-30 23:12:19
The experimental results show that the adsorption equilibrium of pure components is in good agreement with the Langmuir equation. In the case of multi-component adsorption, due to the competition and interference between each component, the component with strong adsorption ability can replace the other component that has been absorbed, so that the penetration curve of each component has obvious changes. activated carbon gold mining  The penetration point of the components with relatively weak adsorption capacity was significantly advanced, while the penetration time of the components with strong adsorption capacity was delayed. In this paper, E-L equation and IAST theory are used for theoretical prediction and analysis of multi-component adsorption equilibrium, and compared with experimental results. activated carbon company   The results show that although the prediction of total adsorption amount by E-L equation is in good agreement with the experimental results, the prediction of each component adsorption amount by E-L equation often produces positive and negative deviation, and the average error is usually more than 20%. However, IAST can eliminate the positive and negative deviation well, and the average error is less than 10%, which is more consistent with the experimental results. The operating parameters showed that the adsorption capacity of activated carbon would decrease with the increase of temperature, gas velocity or humidity. The appropriate operating range is: temperature within 40℃, gas speed between 0.1~0.5 m/s, humidity is best not more than 40%. In this range, the relationship between pressure drop and gas velocity basically conforms to Ergun equation. 
Activated carbon air purification02022-01-04 22:40:57
When the adsorption speed and desorption speed of activated carbon in the solution is equal, that is, the number of activated carbon adsorption is equal to the number of desorption, the concentration of the adsorbed material in the solution and the concentration on the surface of activated carbon are no longer intermingled, that is, to achieve the balance, the dynamic balance at this time is called activated carbon adsorption balance. At this time, the concentration of the adsorbed substance in the solution is called equilibrium concentration.In aerobic part, a self-made internal circulating biological fluidized bed reactor was used to treat organic pesticide wastewaterThe effects of internal circulating biological fluidized bed on the removal of organic matter and the deamination of organic pesticide wastewater, the change of wastewater biodegradability and acute biological toxicity were investigated.The results show that the internal circulation biological fluidized bed with granular activated carbon as the carrier has a fast speed of membrane and can be cultured in about days by the rapid sludge drainage methodOut of activated sludge.The internal circulating biological fluidized bed with granular activated carbon as the carrier is not sensitive to temperature change at 1 ℃, and has a certain impact resistance ability.Aeration amount has effect on the treatmentToo large or too small aeration will reduce the reactor treatment efficiency.The optimal hydraulic retention time of the internal circulating biological fluidized bed using granular activated carbon as carrier is, and the treatment effect will be affected if the hydraulic retention time is too long or too short.activated carbon gold mining  At the aeration rate of /,During hydraulic retention, the total helium removal rate is.%,.%, water effluent/up tothe biodegradability of wastewater was significantly improved, and the acute biological toxicity was reduced by %.When the efficiency of internal circulating activated carbon biological fluidized bed treatment is.%, the reaction is obtained activated carbon company 
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. 

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