文章基本信息

标题：Problematika úpravníckych kalov z pohľadu environmentálnych záťaží
其他标题：Mineral Processing Sediments in Terms of Environmental Burdens
本地全文：下载
作者：Ľubica Kozáková ; Miroslav Zeleňák ; Fridrich Zeleňák 等
期刊名称：Životné prostredie
印刷版ISSN：0044-4863
电子版ISSN：2585-7800
出版年度：2012
卷号：46
期号：5
页码：227-231
出版社：Institute of Landscape Ecology of the Slovak Academy of Sciences
摘要：Mining and mineral processing of raw materials has a long tradition in Slovakia. The gradual removal of rich ore veins caused a transfer to mining ores with low metal content; the volume of mined materials has increased. Development of additional treatment technologies of raw materials, particularly flotation, raised the effectiveness of processes for obtaining utility components in the treatment of ore and non-ore minerals. It is used mass of chemical compounds in the flotation process. Waste from the ore treatment process – mineral processing waste or flotation waste was transported by hydraulic systems and deposited on the settling pits. Established and alluvial materials have specific characteristics, mainly related to the used treatment method, respectively used chemical compounds. Mineral processing waste, which is the product of sodium cyanide leaching technology, has unique character. The majority of ore that was previously mined and processed belonged to the sulphide ores. Due to the effect of atmospheric oxygen and water it may lead to oxidation and other chemical processes. The oxidation of sulphides can caused formation of sulfuric acid, iron, sulfate, and various kinds of metal. These compounds are able to migrate in the body of the settling pit. Slovak legislation defines a settling pit as a natural or artificially engineered facility for the disposal of fine-grained mining wastes with different water content. Settling pit can be also defined as water construction formed by dam system and waste is deposit by hydraulic systems. The article reviews the updated data from the register of settling pits, associated with mining, especially mineral processing activities. The survey is complemented by available data from the registers of environmental burdens.