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由于堆浸底板、集液沟和溶液池都要求不透不漏,故在堆浸作业中,高质量的地膜衬料大为有用。用于堆浸作业的地膜可使溶浸液的损失减至最少。从环保的观点来看这一点是特别需要的。从经济观点来看也是同样特别需要,因为保住了浸出液也就是保住了已浸出的有价值的金属。高密度聚乙烯(HDPE)地膜衬料特别能耐稀碱性或酸性水溶液的腐蚀和不渗漏。将0.1毫米厚的HDPE地膜与0.6米厚的天然粘土垫层对比,设溶浸液的有效压头均为0.1
Due to the heap leaching of the bottom plate, the sump and the solution tank are required to be impermeable, so in the heap leaching operations, high-quality plastic lining material is very useful. Membranes used for heap leaching can minimize the loss of infusions. This is especially needed from an environmental point of view. From an economic point of view, it is equally as necessary, because holding the leachate preserves the leached valuable metal. High-density polyethylene (HDPE) film lining particularly resistant to dilute alkaline or acidic aqueous solution of corrosion and leakage. The 0.1 mm thick HDPE and 0.6 m thick natural clay cushion compared to the effective infiltration immersion liquid were 0.1