The subject of study was the Safyanovskaya Med company’s acidic underspoil water containing 0.17 g/liter of copper and 1.8 g/liter of zinc (pH 2.8–2.9). The goal was to study and develop a technology of cleaning water of impurities (copper, zinc, aluminum, iron, manganese), accompanied by extraction of copper and zinc in the form of commercial products. Copper extraction by cementation with metallic iron was studied. It was shown that this method could allow extracting 94–95% copper into a concentrate. The role of resolution processes of precipitated copper in cementation was established. To reduce the consumption of iron and to improve the quality of precipitated copper, it is proposed to carry out cementation in a washbox. The copper content in the concentrate was 27–28%, while the specific consumption of iron was 7.0–7.5 kg/kg of copper. During the studies of material composition of copper precipitate, the formation of cuprospinel, goethite, and bassanite phases and the precipitation of basic aluminum sulfates were detected. The extraction of zinc from the solution after copper removal was studied by precipitation with sodium sulfide. As a result, a concentrate was obtained with a zinc content of 49.6–50.9% with extraction of 99%. The process regularities for zinc concentrate dehydration were studied. By optimizing the crystallization conditions of the precipitate, a minimum final cake moisture content of 40–42% was reached. A process flow diagram for acidic underspoil water, including copper cementation and the precipitation of zinc sulfide, was developed. According to this diagram, the mother solution from zinc precipitation should be treated with lime until the pH reaches 10–10.5, followed by slurry settling. As a result, clean water of the following composition is obtained, mg/liter: 0.05 zinc, 0.01 copper, 0.02 aluminum, < 0.02 iron, 0.05 manganese. These values correspond to the quality of drinking water according to GOST R 51232-98.

中文翻译：

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从地下水中提取铜锌的研究

研究对象是 Safyanovskaya Med 公司的酸性未降解水，其中含有 0.17 克/升的铜和 1.8 克/升的锌（pH 值 2.8-2.9）。目标是研究和开发一种去除杂质（铜、锌、铝、铁、锰）的水的技术，同时以商业产品的形式提取铜和锌。研究了用金属铁渗碳提取铜。结果表明，这种方法可以将 94-95% 的铜提取到精矿中。确定了沉淀铜的分解过程在渗碳中的作用。为了减少铁的消耗，提高沉淀铜的质量，建议在洗涤箱中进行渗碳。精矿中的铜含量为 27-28%，而铁的单位消耗量为 7.0-7.5 kg/kg 铜。在研究铜沉淀物的物质成分时，发现了铜尖晶石、针铁矿和贝桑石相的形成以及碱式硫酸铝的沉淀。通过用硫化钠沉淀来研究去除铜后从溶液中提取锌。结果，获得了锌含量为 49.6-50.9% 的精矿，提取率为 99%。研究了锌精矿脱水的工艺规律。通过优化沉淀物的结晶条件，达到了 40-42% 的最低最终滤饼含水量。开发了酸性未破坏水的工艺流程图，包括铜置换和硫化锌沉淀。根据这张图，锌沉淀的母液应用石灰处理，直到 pH 值达到 10-10.5，然后进行浆液沉降。结果，获得以下组成的清洁水，mg/升：0.05锌、0.01铜、0.02铝、<0.02铁、0.05锰。根据 GOST R 51232-98，这些值对应于饮用水的质量。