Project 1 - Environmental Project 1 - EP1 - Immobilization of U, As, and Co-occurring Metals in Mine Wastes

项目1 -环境项目1 -EP 1-项目摘要 环境项目1将利用无处不在的资源， 利用矿山废物中现有矿物质的固定化战略，以及利用生物累积 从当地植物根系中提取的图案。生物地球化学和传质界面过程将是 研究通过实验室规模的实验，使用现场沉积物样品，整合水化学， 分子环境微生物学，数学模型，先进的显微镜和光谱学工具。 我们假设，普遍存在的矿物相和植物可用于在低温下溶解金属混合物。 表面氧化条件 环境项目1将对生活在该地区的普韦布洛和纳瓦霍社区产生宝贵的影响。 废弃的矿山废弃地附近。通过在切割时集成先进技术- 环境科学与工程的边缘，我们将研究反应和机制， 分子水平来理解宏观尺度的过程。我们将设计植物修复策略， 生物地球化学工具和反应性运输建模，以及下一代测序分析 （用于根际实验的宏基因组）。我们将使用体外和温室相结合的方法 确定具体的植物修复方法，以减少土壤中的金属污染， 将在试点研究中测试。参与的普韦布洛和纳瓦霍社区和UNM金属科学家 将产生新的知识，可以应用到成千上万的其他现有的废弃矿山废物场。

PROJECT 1 – ENVIRONMENTAL PROJECT 1 – EP1 - PROJECT SUMMARY Environmental Project 1 will make use of ubiquitous resources both by geochemically customized immobilization strategies making use of existing minerals in mine wastes, as well as exploiting bioaccumulation patterns from local plant root systems. Biogeochemical and mass transfer interfacial processes will be investigated through bench scale experiments using field sediment samples, integrating aqueous chemistry, molecular environmental microbiology, mathematical models, advanced microscopy, and spectroscopy tools. We hypothesize that ubiquitous mineral phases and plants can be used to immobilize metal mixtures under surface oxidizing conditions. Environmental Project 1 will have an invaluable impact on the Pueblo and Navajo communities that live in the proximity of abandoned mine wastes sites. Through the integration of advanced techniques at the cutting- edge of environmental science and engineering, we will investigate reactions and mechanisms at the molecular level to understand macro-scale processes. We will engineer phytoremediation strategies using biogeochemistry tools and reactive transport modeling, together with Next Generation Sequencing analyses (metagenome for rhizosphere experiments). We will use a combination of in-vitro and greenhouse experiments to define specific phytoremediation approaches to decrease metal contamination in soils which will be tested in pilot studies. The participating Pueblo and Navajo communities and UNM METALS scientists will produce new knowledge that can be applied to thousands of other existing abandoned mine waste sites.