Plant adsorption method

研究發(fā)現(xiàn)甲醛吸收效果更好的是綠蘿，吸收效果更差的君子蘭。對甲醛抗性較強的綠蘿、金邊虎尾蘭和吊蘭，均可以用來做吸收甲醛的植物。雖然，植物吸附法能夠去除一定甲醛，但是吸附緩慢，裝修材料釋放甲醛的量遠遠大與植物吸附的量，植物吸附法在凈化室內(nèi)甲醛時效果并不顯著。

The results showed that the best formaldehyde absorption effect was found in mallow, and the worst in Clivia. The plants with strong resistance to formaldehyde, such as Mallory, Cymbidium and Chlorophytum, can be used to absorb formaldehyde. Although the plant adsorption method can remove a certain amount of formaldehyde, but the adsorption is slow, the amount of formaldehyde released by decoration materials is far greater than that of plant adsorption, and the effect of plant adsorption method in purifying indoor formaldehyde is not significant.

活性炭吸附法

Activated carbon adsorption method

活性炭凈化室內(nèi)空氣中甲醛的原理是依靠其自身發(fā)達的比表面積和孔隙結(jié)構(gòu)，通過空氣流通被動的吸附甲醛等污染物到活性炭的空隙中，因此，活性炭的孔徑結(jié)構(gòu)越發(fā)達、比表面越大該活性炭的吸附能力就越強。物理吸附法雖能去除甲醛但其對空氣流動依賴較大，當室內(nèi)空氣不流動時，其只能吸附與其接觸空氣內(nèi)的甲醛，對室內(nèi)甲醛整體吸附效果并不顯著。當其吸附飽和后，對甲醛的降解效果會大幅度降低，不能夠持續(xù)有效的吸附室內(nèi)甲醛。

The principle of purifying formaldehyde in indoor air by activated carbon depends on its developed specific surface area and pore structure, and passively adsorbs formaldehyde and other pollutants into the space of activated carbon through air circulation. Therefore, the more developed the pore structure and the larger the specific surface area, the stronger the adsorption capacity of activated carbon. Although the physical adsorption method can remove formaldehyde, it depends on the air flow. When the indoor air is not flowing, it can only adsorb the formaldehyde in the contact air, and the overall adsorption effect of indoor formaldehyde is not significant. When the adsorption is saturated, the degradation effect of formaldehyde will be greatly reduced, and it can not continuously and effectively adsorb indoor formaldehyde.