García-Mercadoa Héctor Daniel, Fernándezb Georgina, Garzón-Zúñigac Marco Antonio, Durán-Domínguez-de-Bazúaa María Del Carmen
a UNAM, Facultad de Química, DIQ, Edif. E-3 , Laboratorios 301-302-303, Ciudad Universitaria , México D.F. , México.
b UNAM, Facultad de Ingeniería, Edif. T , Ciudad Universitaria , México D.F. , México.
Int J Phytoremediation. 2017 Jan 2;19(1):3-13. doi: 10.1080/15226514.2016.1216074.
Mexico's mercury mining industry is important for economic development, but has unfortunately contaminated soils due to open-air disposal. This case was seen at two sites in the municipality of Pinal de Amoles, State of Queretaro, Mexico. This paper presents an evaluation of mercury dynamics and biogeochemistry in two soils (mining waste soil) using ex-situ wetlands over 36 weeks. In soils sampled in two former mines of Pinal de Amoles, initial mercury concentrations were 424 ± 29 and 433 ± 12 mg kg in La Lorena and San Jose, former mines, respectively. Typha latifolia and Phragmites australis were used and 20 reactors were constructed (with and without plants). The reactors were weekly amended with a nutrient solution (NPK), for each plant, at a pH of 5.0. For remediation using soils from San Jose 70-78% of mercury was removed in T. latifolia reactors and 76-82% in P. australis reactors, and for remediation of soils from La Lorena, mercury content was reduced by 55-71% using T. latifolia and 58-66% in P. australis reactors. Mercury emissions into the atmosphere were estimated to be 2-4 mg m h for both soils.
墨西哥的汞矿开采业对经济发展很重要，但不幸的是，由于露天倾倒，土壤受到了污染。在墨西哥克雷塔罗州皮纳尔·德阿莫莱斯市的两个地点出现了这种情况。本文介绍了使用异位湿地对两种土壤（采矿废弃土）中汞的动态和生物地球化学进行的为期36周的评估。在皮纳尔·德阿莫莱斯市两个 former mines 的 La Lorena 和 San Jose采样的土壤中，初始汞浓度分别为424±29和433±12毫克/千克。使用了宽叶香蒲和芦苇，并建造了20个反应器（有植物和无植物）。每周用营养液（NPK）对反应器进行修正，每种植物的pH值为5.0。对于使用San Jose土壤进行的修复，宽叶香蒲反应器中汞的去除率为70-78%，芦苇反应器中为76-82%；对于La Lorena土壤的修复，宽叶香蒲使汞含量降低了55-71%，芦苇反应器中降低了58-66%。两种土壤排放到大气中的汞估计为2-4毫克/(平方米·小时) 。
原文中“former mines”似乎表述有误，可能是“废弃矿”之类更合适的表达，但按照要求未作修改。
