Estimation of the potential of landfill mining and exploration of metal-enriched zones
Estimation of the potential of landfill mining and exploration of metal-enriched zones
复制标题
垃圾填埋场采矿和富金属区勘探潜力估计
DOI：
10.1016/j.wasman.2019.04.050
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发表时间：
2019
期刊：
影响因子：
8.1
通讯作者：
H.
中科院分区：
文献类型：
--
作者：
Kamura;K.;Omori;M.;Kurokawa;M.;Tanaka;H.
自工业革命以来，人们利用自然资源制造产品。许多产品后来被处理在垃圾填埋场或类似的地方。本研究的目的是利用非破坏性探矿方法确定垃圾填埋场中贵重稀有金属的含量和化学形态，并确定垃圾填埋场中的金属富集带。采用四种沙子和硫化铁颗粒的混合物以及挖掘的废物样品进行了箱试验。在一个工业垃圾填埋场进行了实地勘探研究。由此可以建立基于充填体中最大含量的元素分级体系，并发现充填体条件对金属分布有潜在影响。此外，在每个目标地点进行了与硫化铁共存的稀有金属的研究。这使得以非破坏性的方式确定充填体中稀有金属含量高的区域。基于上述方法，完成了对可作为“城市矿山”的垃圾填埋场的基本评价。
Since the Industrial Revolution, people have exploited natural resources to manufacture products. Many of the products have later been disposed of in landfills and the like. The aim of this study was to determine the contents and chemical forms of valuable rare metals in landfills and to identify the metal-enriched zones in landfills using non-destructive prospecting methods. Box experiments were performed using four mixtures of sand and iron sulfide particles, and excavated waste samples. Field prospecting studies were performed at an industrial landfill site. As a result, it is possible to establish a grading system for elements based on the maximum contents in the fill, and the condition in the fill is found to potentially affect the metal distribution. In addition, investigations for rare metals coexisting with iron sulfide were performed at each target site. This allowed zones with high rare metal contents in the fill to be identified in a non-destructive manner. Based on the above approach, a basic evaluation of a landfill site that could be used as an “urban mine” was accomplished.