主动绿墙净化甲醛能力分析

Study on Formaldehyde Removal by Active Green Walls

通过动态熏蒸实验研究了三种绿墙模块在不同流量梯度下对不同浓度梯度的甲醛气体的净化能力。结果表明:主动绿墙对甲醛有较好的净化能力;单程净化率随流量的增加而显著降低(P<0.01),净化速率随流量的增加而显著增加(P<0.01);净化速率与甲醛负荷呈线性正相关。植物种类间的表现存在显著差异,其中吊兰净化表现最好,鹅掌柴次之,袖珍椰子最差。

The purification ability of three different active green walls for formaldehyde gas with different concentrations was investigated by dynamic fumigation experiments at different airflow rates.The results showed that the active green wall had high formaldehyde removal capacity.The single pass removal efficiency decreased significantly(P<0.01) and the elimination capacity(EC) increased significantly(P<0.01) with the increase of the airflow rate;EC was linearly and positively correlated with inlet formaldehyde loading rate;Significant differences in formaldehyde removal effectiveness amongst the plant species were observed with Chlorophytum comosum performing the best,followed by Schefflera octophylla,with Chamaedorea elegans being the worst.