Strictly prevent major pollution sources of decora

2022-07-22
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[plant absorption method]: plants have a strong ability to absorb formaldehyde, such as cactus, Chlorophytum comosum, reed, ivy, iron tree, chrysanthemum, etc. Expert comments: many plants do have the effect of purifying the air. However, this does not mean that plants can completely remove formaldehyde from the air. The absorption of formaldehyde by plants can only play an auxiliary role in the whole process of purifying the air. If the formaldehyde content in the air is too high, it may even cause the death of plants themselves. Generally speaking, plants with large leaves and herbs have a better effect of absorbing formaldehyde, such as Chlorophytum comosum, tiger tail orchid, etc. [folk method] put tea dregs, grapefruit peel, onion slices, pineapple pieces, etc. in the newly decorated room or fumigate the whole room with white vinegar. Expert comments: the use of tea residue, grapefruit peel, onion slices, pineapple pieces and other soil methods can only play a role in covering, such as covering the odor of the toilet. But these things will not absorb formaldehyde in the air. In addition to these things, some people also like to use perfume and air fresheners, which is not advisable, because the chemical raw materials in perfume and air fresheners may react with substances in the air, causing secondary pollution. [activated carbon adsorption method] solid activated carbon has the characteristics of many pores, and has a strong adsorption and decomposition effect on formaldehyde and other harmful substances. The smaller the particle of activated carbon, the better the adsorption effect. Expert comments: the adsorption effect of activated carbon on formaldehyde is obvious, but the amount of activated carbon placed varies according to the size of the space. In addition, the activated carbon needs to be replaced after it is adsorbed to a certain extent. Although the effect of activated carbon is good, like other methods, it can not completely remove formaldehyde from the air. [photocatalyst decomposition method] under the stimulation of light, the catalyst in photocatalyst and oxygen and water in the air generate negative ions and hydroxyl radicals, which can oxidize and decompose various organic and inorganic pollutants, and finally degrade into harmless substances such as carbon dioxide, water and corresponding acids, so as to decompose pollutants and purify the air. Expert comments: experiments have proved that photocatalyst is indeed effective in absorbing formaldehyde. As a new material, photocatalyst will not cause secondary pollution in theory. However, due to the different production processes of photocatalyst in various manufacturers, it cannot be said that photocatalyst will not cause secondary pollution. In addition, the use and operation of photocatalyst is relatively complex, and it is generally provided and used by special service companies. [purifier treatment method] at present, the air purifiers on the market are divided into anion type, ozone type, filtration adsorption type, electrostatic integration type and photocatalyst type. Different air purifiers have different working principles. For example, the negative ion type produces negative ions to decompose the odor and attached smoke in the air, so as to achieve the purpose of purifying indoor air. Expert comments: the air purifier has a certain effect in absorbing formaldehyde, but the air purifier is generally only effective when used in a closed space. If the air purifier is used with the window open, it will not only have little effect, but also waste electricity. [chemical agent purification method] at present, there are two kinds of formaldehyde capture agents on the market. One is to purify the air by neutralizing formaldehyde and generating harmless substances; The other is to purify the air by blocking formaldehyde and preventing its volatilization. Expert comments: formaldehyde trapping agent is also an effective method to absorb formaldehyde. At present, some people believe that formaldehyde sealers completely limit the volatilization of formaldehyde. In fact, formaldehyde sealers cannot completely seal formaldehyde, but can only reduce the release of formaldehyde. Therefore, it is incorrect to think that the sealed formaldehyde will burst out at some time

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