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环境化学  2015 

六种盆栽植物在单一及复合苯/甲苯气体胁迫下的净化效果及应用分析

Keywords: 植物净化,室内空气,,甲苯

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Abstract:

选取杜鹃(Rhododendronhybrids)、橡皮树(Ficuselastica)、变色木(Codiaeumvariegatum)、萱草(金娃娃)(Hemerocallisfulva)、一品红(Euphorbiapulcherrima)和国兰(Cymbidiumsinense)等6种植物,采用动态熏蒸方式,研究其在6h熏蒸时间内,分别对3个浓度水平的苯、甲苯以及苯/甲苯复合气体的净化效果.实验结果表明,6种植物对几种有害气体均有净化作用,但不同浓度水平下净化效果有明显差异.植物对甲苯的选择性净化作用会因为苯的介入而受到抑制.实验植物在苯浓度为0.64mg·m-3,甲苯浓度0.76mg·m-3时达到最佳净化效果.兼顾到实际应用中污染物浓度、时间、污染物种类及数量等因素,将植物进行适当合理的搭配可达到稳定的净化效果.

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