矿山地质生态环境修复技术研究

Study on restoration technology of mine geo-ecological environment

生态修复可以实现废弃矿山地质环境的可持续发展,为了提高废弃矿山地质环境的修复效果,提出了废弃矿山地质环境生态修复技术研究。以A矿山为研究对象,利用苔藓、芥菜和剪股颖吸收废弃矿山地质环境中的Hg,利用菊苣、籽粒苋和鬼针草吸收废弃矿山地质环境中的Cd。结果表明,无论是低污染浓度还是高污染浓度,苔藓对废弃矿山地质环境中Hg的吸收效果最好,最大吸收量分别为3.24、9.83μg/pot;对于废弃矿山地质环境中的Cd,鬼针草的吸收效果最好,最大吸收量分别为196.52、611.24μg/pot。这表明可将苔藓和鬼针草作为废弃矿山地质环境生态修复的优选植物。

Ecological restoration can realize the sustainable development of the geological environment of abandoned mines.In order to improve the restoration effect of the geological environment of abandoned mines,a research on ecological restoration technology of the geological environment of abandoned mines is proposed.Taking mine A as the research object,moss,mustard and scutellaria were used to absorb Hg in the geological environment of the abandoned mines,and chicory,amaranth and sagebrush were used to absorb the Cd in the geological environment of the abandoned mines.The results showed that regardless of low or high pollution concentrations,moss has the best absorption effect on Hg in the geological environment of abandoned mines,with the maximum absorption of 3.24μg/pot and 9.83μg/pot respectively;for Cd in the geological environment of abandoned mines,the absorption effect of sagebrush was the best,and the maximum absorption was 196.52μg/pot and 611.24μg/pot,respectively.This indicates that moss and sagebrush can be used as the preferred plants for ecological restoration of the geological environment of abandoned mines.