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One is the physical method of using activated carbon as adsorption materials.
The principle of this method is to adsorb pollutants in the indoor environment, such as on the material, to achieve the purpose of removing pollutants, but the use of activated carbon needs to be replaced frequently.
The second is chemical methods.
The chemical water agent is applied to the furniture, and the harmful gases are decomposed through chemical reactions, so as to achieve the effect of removing formaldehyde.
Fourth, it is a closed and concealed product.
The principle is to paint the closed product on the surface of the large core board, furniture, etc., to form a coating film, and temporarily cover up the formaldehyde and other polluting substances.
Fifth, the plant method.
Many flowers and plants, such as spider plants, aloe vera, and tiger tail plants, can absorb formaldehyde in the air and convert it into other substances. This method is slower.
Sixth, the plant extract liquid treatment technology, the principle is similar to the plant method, is to extract some liquid with formaldehyde removal function of the plant, and then spray it in the environment, and the decoration of harmful molecules quickly chemical reaction, so that it becomes non-toxic, odorless molecules, to achieve the purpose of formaldehyde removal.
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Because of its porous characteristics, activated carbon can effectively adsorb harmful gases in the room, but now it needs to be dried frequently, because the adsorption is saturated, and the activated carbon will be released twice, causing secondary pollution of indoor air.
In the room, more Ye Guang mud is placed in the furniture, which can effectively adsorb and decompose formaldehyde in the room. It can not only adsorb a lot of formaldehyde gas, but also decompose these formaldehyde gases into water vapor and carbon dioxide.
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Formaldehyde is a common air pollution problem in modern life, especially after decoration, people are troubled by formaldehyde. Some people plan to use activated carbon to adsorb formaldehyde, but is activated carbon useful in addition to formaldehyde?
Because activated carbon has strong adsorption, it can really remove formaldehyde. However, it must be noted that the working mechanism of activated carbon aldehyde removal is passive physical adsorption, which can only reduce the free formaldehyde in the air, but cannot penetrate deep into the furniture board to solve the formaldehyde problem from the root. At the same time, in the process of using activated carbon in addition to formaldehyde, when the activated carbon is completely adsorbed, it must be replaced, otherwise the activated carbon can not only continue to adsorb aldehydes, but also may cause the desorption of pollutants and even cause secondary pollution.
Although activated carbon adsorbs formaldehyde to a certain extent, the efficiency is not high. Because activated carbon adsorption is not targeted, all kinds of gases can be adsorbed, including benzene, ammonia, TVOC, etc. , and then adsorb some peculiar smell or something, which is basically saturated, and the proportion of formaldehyde is very low.
At this point, we can basically conclude that although activated carbon can remove aldehydes, it can only be passively adsorbed, which is inefficient and needs to be replaced regularly. It can be used as an auxiliary means to remove formaldehyde, but it is unrealistic to expect to rely solely on activated carbon to solve the problem of excessive formaldehyde.
Activated carbon is mainly used to adsorb harmful gases such as formaldehyde, filter out insolubility, and adsorb part of solubility. The components of activated carbon are mainly made of charcoal, various husks and coal, which are made by physical and chemical methods such as crushing, sifting, catalyst activation, rinsing, drying, and screening. It has strong physical adsorption and chemical adsorption functions, and can adsorb some organic matter to achieve the removal effect.
Activated carbon bag can adsorb ammonia, benzene, formaldehyde, xylene, radon and other indoor harmful gas molecules in the air, and has a good effect on living rooms, furniture closets, refrigerators, bathrooms, floors, bookcases, shoe cabinets, shoes, fish tanks, automobiles, air conditioners, computers, hotels, and entertainment venues, and can effectively adsorb harmful gases such as formaldehyde, filter out insoluble substances, and absorb part of the solubility. Therefore, together with chemical treatment methods such as gas catalysts, it is used as a household formaldehyde removal and indoor air purification.
The working principle of activated charcoal determines that it can only absorb a small amount of formaldehyde. For newly renovated houses, activated carbon has little effect on removing formaldehyde, and activated carbon can only absorb formaldehyde within 1 cubic meter. If activated carbon is used in addition to formaldehyde, then a large amount of activated carbon is needed, which is not cost-effective, because so much activated carbon ** is very high, and it needs to be replaced within a period of time, which is not only very troublesome to operate, but also costs a lot of money.
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Yes, because activated carbon has an adsorption effect, it can adsorb all harmful gases in the activated carbon.
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Raising some green plants at home that can remove aldehydes can improve indoor air quality, such as spider plant, aloe vera, etc. At the same time, they can also decorate the interior and cultivate people's sentiments. However, the aldehyde removal effect of this method is not significant, because the amount of aldehyde removed is small.
The ventilation method, which also includes fan matching, fresh air, etc., is for air circulation and can be classified as the ventilation method.
Photophyllin, which is mainly sprayed on the place with high formaldehyde content of furniture panels, is a catalyst that can directly decompose formaldehyde without light.
Ye Guangni, which is more common, is adsorbed at home, which is better than ordinary charcoal bags, and does not need to be replaced.
Increasing the temperature, in the case of high temperature, can promote the conversion of formaldehyde in the bound state into free formaldehyde, and reduce the total content of formaldehyde, because formaldehyde penetrates deep into the material, although the formaldehyde can not be completely removed, but the effect is still very obvious.
Home life is inseparable from green plants, not only because the house can be decorated with vitality, but also can absorb formaldehyde in the room, after all, the release period of formaldehyde is as long as 15 years, think about it is a little nervous. With a variety of ways to achieve the standard of occupancy.
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Of course, if there is a lot of formaldehyde, you should put some activated carbon, and you can also put some green plants, so that you can remove formaldehyde and will not affect a person's respiratory tract.
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Activated carbon can remove formaldehyde, and putting activated carbon in the room can help the room to disperse the smell of formaldehyde.
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Of course, it can have the effect of removing formaldehyde, because the adsorption capacity of activated carbon is relatively strong, and the effect of removing odor is also better.
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Activated carbon is useful in removing formaldehyde.
1. Activated carbon packs can indeed remove formaldehyde, but its role is limited. Activated carbon has a porous structure, which can play a role in adsorption, and 50 grams of activated carbon can absorb one square meter of formaldehyde, so after the home is renovated, activated carbon packets can be placed in various rooms.
2. For example, the drawers of furniture, including the floor, can be placed around. However, it should be noted that it can only play the role of adsorption, and it will be released after the adsorption is saturated, so it needs to be replaced regularly, such as every half a month.
1. Activated carbon is mainly used to adsorb harmful gases such as formaldehyde, filter out insolubility, and adsorb some solubility.
The components of activated carbon are mainly processed and manufactured by a series of processes such as crushing, screening, catalyst activation, rinsing, drying and screening of raw materials by physical and chemical methods using charcoal, various husks and coal as raw materials. It has a strong physical adsorption and chemical adsorption effect, which can adsorb some organic compounds to achieve the removal effect.
2. The activated carbon package can adsorb ammonia, benzene, formaldehyde, xylene, radon and other indoor harmful gas molecules in the air
For living rooms, furniture wardrobes, refrigerators, bathrooms, floors, bookcases, shoe cabinets, shoe cabinets, fish tanks, cars, air conditioners, computers, hotels and entertainment venues, it has a good effect, which can effectively adsorb harmful gases such as formaldehyde, filter out insolubility, and adsorb some solubility. Therefore, together with chemical treatment methods such as gas catalysts, it is used as household formaldehyde removal and indoor air purification.
3. The role of granular activated carbon packs
Granular activated carbon (GAC), the smaller the particles, the better the adsorption effect, but the resistance generated will also be more disturbing dust, and it is easy to leak carbon, so water purifier manufacturers generally choose carbon particles with moderate particles, generally between 10 and 24 meshes, and small water purifiers choose 16 32 mesh. Moreover, granular activated carbon is more suitable for use in small areas such as refrigerator odor adsorption or car washing.
Let me summarize: activated carbon can indeed remove formaldehyde, but it only plays an auxiliary role, which is the same as the indoor display of green plants. If you want to remove formaldehyde at the root, you also need to use scientific methods.
After the home is decorated, you need to open the window for ventilation, you can also open the electric fan, table fan, floor fan, etc., you can blow the fan in the direction of the window, which can speed up the circulation of air, remove formaldehyde will be faster, in addition, you can also use some scientific and technological equipment at home, such as air purifier pioneer system and so on.
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With the improvement of living standards, people pay more and more attention to hygiene and health, so many people will choose to buy activated carbon to purify the air, especially the newly renovated Na Sen house, then many people will question whether activated carbon is useful in removing formaldehyde, so what is its effect, today let's take a look: activated carbon is a black porous solid carbon. Shanghai Xi Carbon Environmental Protection Technology Co., Ltd. is produced by crushing, forming or carbonizing and activating coal particles with uniform coal particles.
The main component is carbon, and contains small amounts of oxygen, hydrogen, sulfur, nitrogen, chlorine and other elements. The specific surface area of ordinary activated carbon is between 500 and 1700 mg. It has strong adsorption performance and is an industrial adsorbent with a wide range of uses.
The principle of activated carbon air purification is to rely on its own developed pore structure and surface area, which can be in contact with the surrounding air to a large extent, and passively adsorb some pollutants into its own pores, so the larger the surface of the activated carbon, the more developed the pore structure, the stronger the adsorption capacity. Everyone knows that activated carbon removes formaldehyde, benzene and other indoor harmful gases, and removes indoor odors, but most people have the same experience: using activated carbon to remove formaldehyde has no effect, or activated carbon seems to be useless!
In fact, the reason why the effect of activated carbon in removing formaldehyde is not obvious is the insufficient amount of activated carbon used (Weixia's experience in removing formaldehyde shows that the use of activated carbon to remove formaldehyde is reasonable according to the area of the room, according to the area of the room, according to the amount of activated carbon used in each square meter, and evenly placed in the surrounding corners). The function of activated carbon is mainly used to adsorb harmful gases such as formaldehyde, filter out insolubility, and adsorb some solubility. The components of activated carbon are mainly made of charcoal, various husks and high-quality coal as raw materials, and are processed and manufactured through a series of processes such as crushing, screening, catalyst activation, rinsing, drying and screening of raw materials by physical and chemical methods.
In World War I, the role of activated carbon was to make gas masks, and later the role of activated carbon was mainly used in waterworks to deodorize activated carbon. Activated carbon is widely used, such as: sugar decolorization, military gas masks, cigarette filters, air purifiers, water treatment in waterworks, drinking water purification, detoxification, decanting, treatment of radioactive element pollution, reducing residual pesticides in the soil, conditioning soil performance, indoor formaldehyde, vegetable preservation, and so on.
Activated carbon has a strong "physical adsorption" and "chemical adsorption" effect, which can adsorb certain organic compounds to achieve the removal effect, using this principle, they can quickly and effectively remove harmful substances, odors and pigments in the water quality of the aquarium, so that the water quality can be directly and rapidly improved.
Friendly reminder: the newly renovated house is recommended to be more ventilated, ventilation is more fast and effective, in summary, activated carbon in addition to formaldehyde is effective, but pay attention to the amount of half a catty of activated carbon per square meter is more reasonable.
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