6种盆栽基质对甲醛的净化效果

Research of Six Kinds of Potted Matrices to Formaldehyde Purification

以河砂、泥炭土、珍珠岩、菌渣、黄壤土、树皮等常用盆栽基质为试验材料,研究6种基质在干燥、湿润条件下对自制甲醛熏气箱中甲醛气体的吸收效果,分析密封箱内甲醛浓度随时间的变化关系。结果表明:珍珠岩、泥炭土、河砂、菌渣、黄壤土对甲醛有较好的吸收作用,基质6 h吸收甲醛能力排序为:珍珠岩>泥炭土>河砂>黄壤土>菌渣>树皮;湿润基质比干燥基质的吸收效果好,基质含水量对甲醛吸收有一定的作用;基质吸收甲醛经历"显著-有效-饱和"的变化过程。

This paper studied the formaldehyde absorbing abilities of six kinds of potted matrices such as bank sand, peat, perlite, mushroom slag, loess, and tree bark under dry and wet conditions. The dry and wet potted matrices were put into chamber with formaldehyde to detect the change of formaldehyde density in the chamber with time elapsing. Detection data were analyzed by using regression curve between time and the formaldehyde density. The results showed that the normal potted matrices had the high ability of absorbing formaldehyde, and peat was the best one of the chosen matrices in our research. The rank of the other matrices is perlite, bank sand, mushroom slag, loess and tree bark. For the same matrix joining water can improve the absorbing ability. Moreover, the formaldehyde purification experienced the process of notability-effective-saturation.