Oregano and Composite Substrates： A Mitigation Alternative for Heavy Metals Emission from Tailings Deposits in Parral, Chihuahua, Mexico  

作　　者：Luis Miguel Rodriguez Vazquez Mario Lorenzo Franco Soto Magdiel Aaron Solis Lozoya Luis Manuel Saenz Macias Ever Ulysses Torres Carrillo Emilio Yanez Terrazas Eduardo Florencio Herrera Peraza Ramon Silva Vazquez 

机构地区：[1]Technological Institute of Parral, Department of Chemical Engineering, Hidalgo del Parral, Chihuahua 33850, Mexico [2]Research Center for Advanced Materials (CIMA V), Department of Renewable Energies and Environmental Protection, Chihuahua 31109, Mexico [3]Research Center for Natural Resources, Salaices, Chihuahua 33941, Mexico

出　　处：《Journal of Environmental Science and Engineering(A)》2017年第3期127-134,共8页环境科学与工程（A）

摘　　要：The Mexican oregano ＂Lippia berlandieri Shauer＂ is a versatile plant, for multiple purposes and high potential adaptative capabilities. To evaluate the possibility to use oregano as a cover surface on tailings deposits and thereby mitigate the emission of particulate material with metals content, an experiment was carried out comparing the plant growing rate over a period of six-month in four substrates： tailings, vermicompost, ＂soil＂ of the region and a mixture of ＂tailings plus vermicompost＂. The statistical analysis shows a significant difference between treatments, resulting in the ＂soil＂ substrate with the best performance, followed by the mixture of＂tailings plus vermicompost＂ treatment. The low permeability oftailings strongly affects the adaptability and growth of the oregano plant; however, the adaptation possibilities increase in the mixture oftailings with vermicompost or ＂soil＂ of the region.

关 键 词：Oregano TAILINGS mining activity heavy metals 

分 类 号：X[环境科学与工程]