Toluene purification by potted plants
盆栽植物净化甲苯废气

A dynamic method was used to simulate the toluene purification by the potted plant for investigating the relation between toluene concentration and removal capacities for potted spider plant and golden pothos. The results showed that the two kinds of plants can obviously remove toluene from air in a long time. The toluene removal capacities for shoots and soil of the spider plant were respectively higher than for golden pothos in the same environment. The removal capacities for shoots and soil of a couple of plants increased with inlet toluene concentration. The removal capacities were higher in the daytime than in the nighttime. The degradation efficiency of soil of spider plant decreased while that of golden pothos did not drop with enhancing toluene concentration. The potted spider plant had higher degradation efficiency compared with golden pothos. The effect of inlet toluene concentration on degradation efficiencies of the potted plants can be negligible.