紫茎泽兰对煤渣污染土壤重金属的富集·修复特性

摘要

[目的]为了检测紫茎泽兰对煤渣污染土壤中重金属的富集、修复特性.[方法]采用火焰原子吸收法测定样品中重金属含量.[结果]土壤中金属含量大小顺序为Fe ＞Mg＞Cu ＞Ni ＞Cr＞Mn ＞Ni,Cr污染达到Ⅱ级标准；紫茎泽兰对重金属有一定的富集作用,特别是对Mg、Cr、Ni、Pb的富集系数均大于1,对Cr的转运系数为1.333.[结论]紫茎泽兰可以作为煤渣污染土壤Cr的修复植物.%[Objective]The research aimed to study the enrichment and phyto-remediation characteristics of heavy metals in cinder contaminated soil for Eupatorium adenophorum. [Method] 6 kinds of heavy mentals were measured by atomic absorption. [Result] The order of the heavy metal content was Fe > Mg > Cu > Ni > Cr > Mn > Ni. The concent of Cr reached the country' s II standard. Eupatorium adenophorum could enrich heavy mentals. EFsofMg, Cr, Ni and Pb were above 1.0. TF of Cr was 1. 333. [Conclusion] Eupatorium adenophorum could be used as a plant of phyto-remediation in cinder contaminated soil.