What is biological formaldehyde removal? How about the effect?

Methods of removing formaldehyde:

1.The most cost-effective and cost-effective, be sure to ventilate more, ventilation is the most important, keep the indoor air smooth.

2.Physical adsorption method: because the simple ventilation method is slow to remove formaldehyde, the effect is not particularly ideal, so the physical adsorption method can be used as an auxiliary, the best adsorption materials such as Maya blue, activated carbon, etc., the dosage can be selected according to the interior decoration situation and area, that is, activated carbon adsorption will be saturated, the effect is poor, but cheap.

3.Plant absorption method: pothos, cactus, spider plant, iron tree and other plants have a trace absorption effect on formaldehyde.

4.Folk soil method: vinegar, grapefruit peel, etc. Because what I want to introduce is an effective formaldehyde removal method, but the formaldehyde removal effect of the folk soil method has not been proven, so I will not introduce much. Be more careful about your health.

In addition to formaldehyde indoors, do not enter the following misunderstandings:

1. Formaldehyde circulating on the Internet is easily soluble in water, and everyone thinks that formaldehyde can be removed by placing a few basins of water indoors. In fact, this does not have much effect, and similarly, it has no effect when black tea and white vinegar are placed.

Second, some people use traditional methods to place orange peel or grapefruit in the house, which can also remove formaldehyde. In fact, these are all self-deception, because this is only a fruit and vegetable smell to cover the smell of decoration, and the harmful gases are not completely eliminated.

3. Most people said: After the renovation of the house, there will be no more formaldehyde after a year. In fact, through the circulation of indoor air, the content of harmful gases can be reduced, but formaldehyde cannot be completely removed.

Because the volatilization period of formaldehyde will be as long as 3---15 years. Therefore, even if the room is specially purified or deodorized for a long time, the owner still needs to continue to take measures to remove formaldehyde after moving in, and can place some plants such as Milan, aloe vera, cactus and other plants or activated carbon packets in the house to assist in absorbing harmful gases.

So what should we do in the face of formaldehyde? It is believed that scientific methods should be chosen for indoor formaldehyde removal. Therefore, you can choose to apply Shanglong multi-functional oxygen activator or activated carbon to remove indoor formaldehyde.

The multi-functional oxygen activator uses the principle of ozone to achieve the purpose of removing formaldehyde through the chemical reaction between ozone and formaldehyde, which is safe and pollution-free; Activated carbon has the characteristics of many pores, and has a strong adsorption and decomposition ability to harmful substances such as formaldehyde and benzene, and the smaller the particles, the better the adsorption effect.

I checked some information about the removal of formaldehyde by biological enzymes, and I felt that it was: nonsense!

The following is an excerpt from the introduction of a decoration **: "Why only these professional formaldehyde removal companies will use biological enzymes to remove formaldehyde, while we ordinary people generally do not use biological enzymes but use other formaldehyde removal materials." That's because biological enzymes remove formaldehyde and have relatively high professional requirements for construction, so it is difficult for laymen to make biological enzymes play a role or play an effective role.

The principle of biological enzyme removal of formaldehyde is that microorganisms can produce biological enzymes through their own reproduction, and under the dual action of microorganisms and enzymes, the organic matter of the odor source is completely synthesized into carbon dioxide and water, mainly for formaldehyde, which can effectively neutralize or synthesize formaldehyde, and has an obvious effect on air pollution such as benzene series and TVOC. "Biological enzymes are organic substances that have a catalytic effect produced by living cells. Generally, proteins are extracted from plants, and enzymes can decompose some pollutants, atomize them through certain technologies, and spray them in the indoor air, so that they can fully contact with the harmful molecules in the air and destroy the atomic structure of harmful gases.

So biological enzymes can remove formaldehyde from the air. ”

A large portal ** said: "Biological enzymes are proteins extracted from plants, and harmful gases such as formaldehyde are soluble in proteins, so biological enzymes can reduce the content of indoor formaldehyde to a certain extent." In principle, formaldehyde can be removed, but it must be sprayed for a long time in order to have a certain effect, if it is only sprayed once, it is impossible to remove indoor pollutants, and many companies on the market say that their products are biological enzymes, but the real biological enzymes are very few, many companies sell dog meat on sheep's heads, consumers must keep their eyes open.

The chemical decomposition is used to achieve indoor purification, and the final product is residue-free and non-toxic water, inorganic salts and oxygen! ”

The introductions on the other ** are similar.

Now let's break it down.

First of all, what is a biological enzyme? How do enzymes work on formaldehyde?

Enzymes are proteins that are produced by organisms and have a catalytic effect. More than 95% of biochemical reactions in living organisms are catalyzed by enzymes. After leaving the organism, enzymes can also function outside the body as long as they remain active.

The role of enzymes is strictly specific, and an enzyme catalyzes only one or a class of chemical reactions.

So how do enzymes work on formaldehyde?

In living organisms, formaldehyde is formed by the intermediate product S2 formylglutathione by the use of coenzyme (NAD) and reduced glutathione under the action of formaldehyde dehydrogenase and other enzymes, and then glutathione is released to form formic acid. Formic acid is catalyzed by the action of formic acid dehydrogenase (with the participation of NAD) to oxidize formic acid into carbon dioxide and water. The reaction is reversible.

Carbon dioxide is emitted as a gas out of living organisms, and water can be recycled.

That is to say, the use of biological enzymes to remove formaldehyde requires at least two enzymes and two biochemical substances, namely formaldehyde dehydrogenase, formate dehydrogenase, glutathione (one composed of three.

Is it credible for you to say that "biological enzymes remove formaldehyde"?

Useful, and non-toxic and harmless, but there is a disadvantage that because it is active plant protein, it has high environmental requirements and is easy to inactivate, and it needs to be used for a long time.

Biological enzymes are useful in removing formaldehyde.

"Biological enzymes are organic substances that have a catalytic effect produced by living cells. Generally, the protein extracted from plants is atomized through a certain technology and sprayed in the indoor air, so that they can fully contact with the harmful molecules in the air and destroy the atomic structure of harmful gases. Therefore, biological enzymes can remove formaldehyde from the air, and some plant extraction sprays like photophyllin, which are extracted from the plant body, as long as they are sprayed in the room.

However, we all know that the cycle of formaldehyde released by indoor decoration pollution sources is generally 3-15 years, and the principle of biological enzyme formaldehyde removal is to remove floating pollutants in the air, that is, it must be sprayed in the air for a long time to have a certain effect. If you spray it at one time, the effect may disappear after a period of time, and it will not be able to meet the release cycle of formaldehyde removal.

Six ways to teach you how to remove formaldehyde after renovation?

1. Solid activated carbon, activated carbon has strong adsorption capacity is known to many people, it can also adsorb formaldehyde and other harmful substances in the air, and the small size can be placed in any position, but activated carbon is relatively easy to saturate and needs to be replaced regularly. And now Maya blue instead of activated carbon appears in people's field of vision, with strong adsorption capacity and not easy to saturate, which is a good tool for formaldehyde.

2. Air purifier, air purifier has a certain effect in adsorbing formaldehyde, especially at the beginning, but its principle is the same as activated carbon, and it is easy to saturate after using it for a period of time, and the effect will decline.

3. Open the window for ventilation, and the effective and fundamental way to remove formaldehyde is to open the window for ventilation and discharge the harmful gases. However, opening windows in winter is easy to cause problems in wall decoration, and it is easy to scrape dust into the room.

4. Plant adsorption, if the indoor formaldehyde content is not very much, then you can raise a few more pots of green plants indoors to adsorb formaldehyde, benzene and other harmful substances. However, this method has a relatively small effect and takes a long time.

5. Photocatalyst to remove formaldehyde, photocatalyst is one of the fastest ways to remove formaldehyde, and it is also an effective and safe method at present. Specifically, formaldehyde is sprayed with liquid products containing nano-sized titanium dioxide on walls and furniture surfaces. In this way, titanium dioxide oxidizes formaldehyde when exposed to light, breaking it down into carbon dioxide and water.

There are many types of photocatalysts, including wood essential oils and leather aldehyde removal care liquid, etc., which are used in different places to quickly remove formaldehyde and will not produce secondary pollution.

6 Oxidant removal of formaldehyde: the use of redox reaction to treat, for example, some people plan to use potassium permanganate solution to treat formaldehyde, it is reasonable to have a certain feasibility, but the oxidant has a certain damage to paint, cloth and so on, and it is easy to have not treated formaldehyde, itself has deteriorated.

Whether the effect of formaldehyde removal is good depends on how the product itself is, and whether it is used in the right place.

The market claims to be formaldehyde scavengers, and its effect index is generally "removal rate". This index is generally based on the "Indoor Air Purification Product Purification Effect Determination Method" QB T 2761-2006 light industry industry standard, which refers to how much formaldehyde in the air is reduced after using the product, and is aimed at formaldehyde in the air.

If it is formaldehyde of wood-based panels, it is different, and the urea-formaldehyde resin glue of wood-based panels releases formaldehyde for up to 3-15 years, and formaldehyde scavengers for wood-based panels are required. The effect indicators are "clearance" and "decay rate", and the decay rate is the long-term effect indicated.

If the indoor formaldehyde exceeds the standard, mainly furniture, with only the "removal rate" of the product, ten days later the formaldehyde exceeds the standard, it is not surprising.

Of course, if the products that can be sold are useless, you can complain.

The formaldehyde removal products sold on the market may not be the same as those products of the formaldehyde removal company, but in fact, they can remove formaldehyde, and the difference between buying formaldehyde removal products and asking the formaldehyde removal company to come to the door is that one needs to do it yourself, and the other needs to spend more money. Of course, in addition to spending more, the effect will be stronger than do-it-yourself, and it is said that in addition to formaldehyde, there is usually a shelf life, that is, how long can you ensure that the formaldehyde concentration will not be **.

The formaldehyde volatilization time is too long, and the use of fresh air system to ventilate the house 24 hours a day is a little better.

Most door-to-door aldehyde removal is not reliable.

The method they use is generally to use ozone or photocatalyst, which is similar to a sealing agent, which only temporarily encloses the harmful gases in the furniture, and only temporarily allows the home to meet the standard, but when the indoor temperature becomes high, these harmful gases will be released again little by little, and the cumulative accumulation will lead to exceeding the standard again.

There will be some formaldehyde after the renovation of the new house, but many people will live in the room after the renovation is completed. In fact, the home is the most serious time for air pollution just after the renovation is completed, and people's health is also the most vulnerable to threats at this time, if you inhale the air with a high concentration of formaldehyde for a long time, then it is easy to get sick.

<> "It can provide a steady stream of fresh air. The release cycle of formaldehyde is very long, so even if the ventilation is actually very low for a long time, the fresh air system can lead formaldehyde to the outside through the exchange and filtration of indoor and outdoor gases, which can have a good effect. There are many such as benzene, ammonia, trichloroethylene, etc.

Therefore, from the perspective of physical health, green plants in the home are not dispensable, but must be had. It is not enough to have a pot, but it must be enough according to the size of the space and the degree of decoration, so that the "safe house" will enter the home with decorative materials, finished furniture and fabric products. The formaldehyde content value of these items is fixed, which is determined by the content of organic compounds (such as urea-formaldehyde resin) in the formaldehyde content inside them, and the formaldehyde will be released when the organic compounds are solidified by the reaction.

Method 4: Please ask a professional formaldehyde removal company to remove formaldehyde at home, at present, there are sealants on the market to enclose formaldehyde in decoration materials, enzyme products to decompose formaldehyde or high-temperature steam to make formaldehyde quickly volatilized by heating. First, the most effective way is to ventilate the outdoor air when it is ***.

Second, you must choose an air purifier with a high efficiency to remove formaldehyde, and at the same time shorten the replacement cycle of the filter of the air purifier to avoid saturation and failure of the formaldehyde removal filter.

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For example, all kinds of home furnishings (especially particle boards, MDF, etc., which contain formaldehyde); In order to remove formaldehyde, in addition to the traditional indoor and outdoor ventilation, you can also plant green plants (such as pothos, tiger pills, cacti, etc.) The purification efficiency of toluene can be reduced within an hour to more than 99%, which can be regarded as efficient.

The first point is that some flowers and plants should be planted in the house, which is more beautiful and can prevent formaldehyde, the second point is that some murals containing that kind of carbon should be hung in the house, which is very good, and the third point is that the whole room should be paid attention to ventilation.