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11 methods to remove formaldehyde

DATE:2016-5-10 9:30:47
1, ventilation method
Ventilation method does not need too to explain is air flow through the harmful gases is discharged to the outside, which is a simple and effective method, the only drawback is formaldehyde release cycle is long, generally three years to 15 years, decoration will new home idle for more than three years is clearly unrealistic. Trapped by ventilation alone can not reach the requirements of the law.
2, plant source of air purification liquid
AQ air purification spray plant source biological agents using biotechnology, from the Italian black poplar, locust hill, powder flower neem plant refining extraction times of the effective components of sesquiterpene esters, alcohols and with the exclusive formula formulated as compound plant source liquid purification, sterilization effect is remarkable, durable, by Hong Kong Polytechnic University of technology and other authoritative department detection, Salmonella, Chi Shigella flexneri bacilli, pathogenic Escherichia coli, Vibrio cholerae, golden staphylococcus, Legionella and SARS coronavirus, influenza virus, avian influenza virus a variety of common bacteria, fungi and viruses within 60 minutes kill rate up to 99.9%. And the effective decomposition of formaldehyde, benzene, TVOC and other toxic gases. Immediate decomposition, no two pollution. Can see the entrance.
3, formaldehyde scavenger or formaldehyde solution enzyme
Formaldehyde scavenger is to rely on chemical reaction method "to get rid of" formaldehyde, the essence of this method is to reduce the toxicity of the target material or into non-toxic substances. Formaldehyde, can be oxidized to formic acid, can also be reduced to methanol, toxicity and irritation of these two substances are lower than formaldehyde, however, their toxicity still exists. For example some strong oxidation of formaldehyde scavenger, the oxidation of formaldehyde, but it itself is easy to decompose, spray on the board will say no damage to the wood, and within a few hours will lose effectiveness, it is not possible to achieve a spray Yong Yi ". Moreover, the high concentration of the cleaning agent sprayed in the air, will produce new pollution hazards. Other oxidants, reducing agents are not effective removal of formaldehyde, and will introduce a similar new pollution.
4, activated carbon adsorption
Nankai University dedicated to the study of activated carbon of Miss Li told reporters that the early use of activated carbon does have an effect, because the pores with adsorption potential, is formed by carbon molecules are adsorbed molecular attraction, smaller pore size and adsorption potential stronger. Also according to the theory of molecular motion, all bodies are made up of atoms, molecules or composition, there is a gap between them and is never cease diffuse irregular thermal motion state, molecules collide with each other very frequently. From the relevant information, in the standard state, the formaldehyde free movement speed of about 450 m / sec, a formaldehyde molecule and other molecules to collide 109 times per second. At this point, the diameter of the collision molecule with the activated carbon pores if the match, that is, the adsorption of. Whether traditional activated carbon, or fried more modified activated carbon, because of its large pores, adsorption capacity is limited.
Sunshine, the highest temperature of 50 degrees Celsius, only the evaporation of water, etc.. Adsorption of pollutants in the activated carbon can not completely volatile, carbon adsorption function can not be fully recovered. So exposure to more is to remove the active carbon in the water. Can not resume its adsorption performance.
Activated carbon generally have a certain role in the adsorption of benzene, the adsorption of formaldehyde is not obvious, usually a month after the adsorption capacity of activated carbon will become weak.

Responsibility editor:Hao Sun

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