Abstract:

Purification of indoor polluted air becomes a common concern topic along with living standards’ enhancement. As the top killer of indoor polluted air, the formaldehyde pollution was of special concern. The origin of formaldehyde and its enormous pollution in indoor air were inevitable so it was very import to purify indoor air formaldehyde. Compare with technology of physical absorption, chemical absorption, photocatalytic biodegradable, the purification of formaldehyde by plant was natural, environmental and easy operate，which became the hot topic and advanced science in the research of purification of indoor formaldehyde and houseplant landscape. The domestic and abroad research progress of aerobic granular sludge was summerized. The theory of purification of formaldehyde was the absorption by the stem and foliage, the metabolism and transformation by the plant, and the degradation by the rhizosphere microorganism. Toxicological purification of formaldehyde by indoor plants was viewed. Advantages and disadvantages in research were reported, too. Finally, the foreground of the purification of formaldehyde by indoor plants was prospected.