可溶性有机质改性气化渣对黑沙蒿生长及重金属迁移转化的影响

Effects of Coal Gasification Slag Modified by Dissolved Organic Matter on the Growth of Artemisia Ordosica and Transfer of Heavy Metals

通过温室试验研究了可溶性有机质改性气化渣对黑沙蒿生长的影响。结果显示改性气化渣对黑沙蒿的生长具有积极作用。可溶性有机质改性气化渣能够降低Pb、Ni、Co的生物有效性,而黑沙蒿能够有效降低Pb、Cr、Zn、Ni、V的生物有效性。因此,可溶性有机质改性气化渣联合黑沙蒿用于矿区重金属污染土壤修复具有广阔前景。

A greenhouse experiment was conducted to investigate the effect of coal gasification slag modified by dissolved organic matter in soil application for cultivation of Artemisia ordosica.The results showed that the modified coal gasification slag had an active effect on the growth of Artemisia ordosica.The modified coal gasification slag could decrease the bioavailability of Pb,Ni and Co,and Artemisia ordosica could decrease the bioavailability of Pb,Cr,Zn,Ni and V.Therefore,the coal gasification slag modified by dissolved organic matter and Artemisia ordosica are promising for the remediation of heavy metal contaminated soils in mining area.