Does activated carbon have an occasional filtration effect, and why can activated carbon be used for

Activated carbon has a well-developed pore structure, and the adsorbed molecules enter the adsorption pores through the macropores (R 50nm) and mesopores (2nm R 50nm) through the two transportation channels Micropores (R 2nm), and the molecules and surface groups on the pore surface are combined together by van der Waals force to complete adsorption. Founded in 1996, Nanjing Mulinsen Carbon Industry Co., Ltd. is a professional activated carbon production enterprise integrating scientific research, development, production and sales. Over the past 20 years, the company has been focusing on the production of activated carbon, and has now developed into a subsidiary of Nanjing Mulinsen (deep processing base, mainly producing high-end products such as high-grade pure activated carbon and activated carbon catalysts), Hainan Mulinsen (Southeast Asia coconut shell raw material base, mainly producing coconut shell activated carbon), Gansu Mulinsen (Northwest coconut...).

The filter element has a filtering effect. y

Formaldehyde removal method.

Teach yourself to do it, the most complete formaldehyde removal method in history: 1. Strengthen ventilation. This is an ordinary method.

2. Use a purifier. This is the approach adopted by consumers whose families are more affluent. However, there are many kinds of purifiers on the market, most of which are vain, and the quality and price are high, and there are often defects.

3. Plant elimination method. Spider plant is used. Aloe vera, tiger tail orchid and other flowers absorb indoor pollutant gases, but plants photosynthesize during the day to absorb carbon dioxide and release oxygen, and absorb oxygen at night and release carbon dioxide, which is not good for the human body, especially for pollen and flowers who are prone to allergies.

4. Spraying of chemical reagents. Such as formaldehyde scavengers, air fresheners and other chemicals. It is the use of one odor to suppress another odor, which does not achieve the purpose of removing the source of pollution, and the use of chemical reagents will produce secondary pollution, which is not good for health.

5. Activated carbon adsorption method. Activated carbon has a well-developed internal void structure and a large surface area, which is the most effective air purification product for workers in the world today, and is a good helper for human anti-poison, detoxification and purification. However, many unscrupulous businesses on the market describe activated carbon with low adsorption value as high-quality activated carbon, misleading the public, and even disguising unactivated bamboo charcoal, charcoal, coconut shell charcoal and other carbonized materials as activated carbon, which harms consumers.

If you use it, it is recommended to use Huankang nano live ore, which is more than 5,000 times the pore size of live ore, which is much better than activated carbon.

6. Herbal decomposition method. This is currently the best way to remove it.

When it comes to activated carbon, I believe everyone must be familiar with it, activated carbon has good adsorption, people often use activated carbon to purify water and other dirty things, so why does activated carbon have such strong adsorption? Why can activated carbon be used for filtration? Let me answer your questions.

Activated carbon is used in daily life for air purification, furniture odor removal, car deodorization, etc. It's just that many people only know its shape, but don't know its name. Activated carbon is a crystal with the same structure as graphite, but the layered structure formed by the hexagonal annular plane of carbon atoms is scattered and irregular, making the crystal formation defective, and the grain is tiny and contains a small amount of impurities.

Due to the irregular arrangement of activated carbon, there are fine pores between the cross-connections, which will produce carbon tissue defects when activated, so it is a porous structural substance.

The most commonly used performance of activated carbon is adsorption, which includes two parts: physical adsorption and chemical adsorption. Due to the highly developed pore structure of activated carbon.

Its porous structure provides a large amount of surface area for it, which can be fully in contact with gas molecules or impurity molecules, and the gas molecules or impurity molecules have a mutual attraction force, also known as van der Waals force, when a gas molecule or impurity molecule is captured by activated carbon and enters its internal pores, due to the mutual attraction between molecules, it will lead to more molecules continuously until the pores in the activated carbon are filled, so the activated carbon has good physical adsorption properties.

Since activated carbon not only contains carbon, but also contains a small amount of oxygen and hydrogen in the form of functional groups on its surface, such as carboxyl groups, hydroxyl groups, phenols, lactones, quinones, ethers, etc. Gas molecules or impurity molecules will have a chemical reaction with them to form chemical bonds to produce chemical adsorption, in the process of adsorption, there are not only van der Waals forces, but also chemical bond forces, so the adsorption energy is larger. Higher temperatures are required to release adsorbed gas molecules or impurity molecules, and even if they can be released, they have undergone a chemical change and are no longer the same thing.

Typical catalysts work in this adsorption mode. People use the strong adsorption of activated carbon to make a variety of filters.

Nowadays, with increasing urbanization, a large number of cars are on the roads. The exhaust gas of the car contains a large number of harmful gases, which has a great negative impact on people's health, and an activated carbon filter is installed on the exhaust port of the car to filter out the harmful gases in the exhaust of the car. Activated charcoal** is cheap, reusable, and very conducive to popularization.

Activated carbon is a special adsorbent material that is widely used due to its microporous structure. In the field of water treatment, activated carbon can be used to remove organic matter, chlorine gas, odor, etc. in water, but the removal effect of insoluble substances is not ideal.

Insoluble substances refer to substances that are not easily dissolved in water, such as sand, mud, rust, etc. These substances are usually formed as a result of suspended solids or sediments in the water. The adsorption of activated carbon is mainly achieved through its microporous structure, which can adsorb organic molecules in water.

However, for insoluble substances, their molecular volume is large and cannot enter the micropores of activated carbon, so activated carbon does not have a good effect on the removal of insoluble substances.

When water contains a large amount of insoluble substances, the use of activated carbon may cause its adsorption rate to slow down or even lose its adsorption capacity. Therefore, in the process of water treatment, it is generally necessary to use physical treatment methods, such as filtration, sedimentation, etc., to remove insoluble substances, and then use activated carbon for further treatment. This can call on the hand to ensure that the adsorption capacity of the activated carbon is fully utilized, so as to improve the water treatment effect and code suspicion.

In summary, activated carbon has limited effect on the removal of insoluble substances, so in the process of water treatment, it is necessary to take physical treatment methods to remove insoluble substances first, and then use activated carbon for further treatment.

What role can the activated carbon filter element play in filtration: The work of the activated carbon filter is completed through the carbon bed. The activated carbon particles that make up the carbon bed have a very large number of micropores and a huge specific surface area, and have a strong physical adsorption capacity.

The water passes through the carbon bed, and the organic pollutants in the water are effectively adsorbed by the activated carbon.

What role can activated carbon filters play in filtration? Activated carbon filtration, according to the adsorption characteristics of activated carbon, activated carbon is mainly used to remove pollutants in water, decolorization, filtration and purification of liquids and gases, and is also used for air purification, waste gas (such as gas benzene in the chemical industry), precious metals and refining (such as absorption).

What role can activated carbon filters play in filtration? Activated carbon is mainly made of substances with high carbon content, such as wood, coal, fruit shells, bones, petroleum residues, etc. With coconut shell as the most commonly used raw material, under the same conditions, the active quality and other characteristics of coconut shell activity are the best, because it has the largest specific surface.

Activated carbon is a kind of porous carbon, with a very rich pore structure, with good adsorption characteristics, its adsorption is made by physical and chemical absorption, and its appearance is black. In addition to the main carbon, its composition also contains a small amount of hydrogen, nitrogen, oxygen, and its structure is similar to a hexagonal shape, due to the irregular hexagonal structure, it is determined that it is more than the body and high surface area characteristics, and each gram of activated carbon has a specific surface equivalent to 1000 square meters.

What role can activated carbon filters play in filtration? Granular activated carbon filter element, it is space activated carbon (referred to as granular activated carbon) with the effect of adsorbing residual chlorine in tap water, high hardness coconut shell, high adsorption efficiency, fast speed. The water filtered through this filter cartridge can effectively filter out the different colors and odors in the water, so that you can stay away from anemia and high blood pressure.

What role can activated carbon filters play in filtration? Compressed activated carbon filter cartridge with a filtration accuracy of 1 micron. Deep filtration removes all insect eggs and bacteria larger than 1 micron to ensure healthy water quality and free of germs, while protecting the service life of the ultrafiltration membrane.

What role can activated carbon filters play in filtration? The post-activated carbon filter element, which is the last stage of the filter element, mainly adsorbs residual chlorine, discoloration and odor in the water again, effectively improving the taste of water quality, making the water more sweet and delicious, and the sweet taste makes more people fall in love with drinking water!

The function of the activated carbon filter: 1. The activated carbon adsorption filter cylinder body adopts the design of hydraulic simulation long diameter, and adopts high-efficiency activated carbon with reasonable particle size and specific surface area of more than 1000 g, so that it has the functions of high-efficiency adsorption of the upper layer and the lower layer, which greatly improves the degree of water purification and the service life of carbon.

2. Residual chlorine content of water after activated carbon adsorption filter treatment: .

3. Outstanding performance on odor, organic matter, colloid, iron and residual chlorine in the water body.

4. It has a great effect on reducing the turbidity and color of the water body, purifying the water quality, and reducing the pollution of the follow-up system (reverse osmosis, ultrafiltration, ion exchanger).

The principle of adsorption of activated carbon: to form a balanced surface concentration on the surface of its particles. The size of the activated carbon particles also has an impact on the adsorption capacity.

In general, the smaller the activated carbon particles, the larger the filtration area. Therefore, the powdered activated carbon has the largest total area and the best adsorption effect, but the powdered activated carbon is easy to flow into the water tank with water, which is difficult to control and is rarely used. The granular activated carbon is not easy to flow due to the particle forming, and the impurities such as organic matter in the water are not easy to block in the activated carbon filter layer, and its adsorption capacity is strong, and it is easy to carry and replace.

The activated carbon adsorption filter cylinder body adopts the design of hydraulic simulation long diameter, and adopts high-efficiency activated carbon with reasonable particle size and specific surface area greater than 1000 g, so that it has the functions of both upper special effect filtration and lower high-efficiency adsorption, which greatly improves the degree of permeate purification and the service life of carbon.

Residual chlorine content of water treated by activated carbon adsorption filter: .

It has outstanding properties on odors, organic matter, colloids, iron and residual chlorine in water bodies.

It also has a good effect on reducing the turbidity and color of the water body, purifying the water quality, and reducing the pollution of the follow-up system (reverse osmosis, ultrafiltration, ion exchanger).

Filtration process: the filter material in the activated carbon filter adsorber, the bottom can be filled with meter-high quartz sand suction, as a support layer, the particles of quartz sand can be used as 20-40 mm, and the quartz sand can be filled with rice granular activated carbon as a filter layer. The filling thickness is generally 1000 2000mm.

Before the activated carbon filter is charged, the quartz sand at the bottom of the filter material should be tested for the stability of the solution, and after soaking for 24 hours, the following requirements are met: the increase in the total solids does not exceed 20mg l. The increase in oxygen consumption does not exceed 10 mg l.

After immersion in alkaline media, the increase in silica does not exceed 10 mg l.

The activated carbon filter quartz sand should be carefully cleaned after being rinsed into the equipment, the water flow should be washed from top to bottom, and the dirty water should be discharged from the bottom until the effluent is clear, and then loaded with granular activated carbon filter material, and then cleaned, the water flow is washed from the bottom to the top, and the dirty water is discharged from the top.

The function of the activated carbon filter is mainly to remove macromolecular organic matter, iron oxide, and residual chlorine. This is because organic matter, residual chlorine, and iron oxides are easy to poison ion exchange resins, while residual chlorine and cationic surfactants will not only poison resins, but also destroy the membrane structure and make the reverse osmosis membrane ineffective.

Precautions: 1. The oil suction coarse filter at the pump inlet;

2. The high-pressure oil filter on the oil circuit at the outlet of the pump;

3. Low-pressure oil filter on the return road of the system;

4. Bypass filtration system installed outside the system.

5. Because the activated carbon adsorption function of the activated carbon filter has a certain saturation value, when the saturated adsorption capacity is reached, the adsorption function of the activated carbon filter will be greatly reduced, so it is necessary to pay attention to the analysis of the adsorption capacity of the activated carbon, replace the activated carbon in time or disinfect and restore it through high-pressure steam.

It is worth noting that in the early stage of using activated carbon (or replacing the activated carbon in the early stage of operation), a small amount of extremely fine powder activated carbon may enter the reverse osmosis equipment system with the water flow, causing the fouling of the reverse osmosis membrane flow channel, causing the operating pressure to rise, the water yield to decrease and the pressure drop of the system to rise, and this destructive effect is difficult to recover with conventional cleaning methods. Therefore, the activated carbon must be rinsed to remove the fine powder before the filtered water can be sent to the subsequent RO system.