Processing and use of waste from the mining industry

Abstract

An increase in the extraction of resources is accompanied by their losses and dilution of ores due to the technogenic impact on ore-bearing massifs. The possibility of preserving the earth’s surface is provided by technologies with filling technological voids with hardening mixtures based on leach tailings, the insufficient activity of which is increased by processing in disintegrators under the influence of high energy. Experimental proof of the possibility of controlling the state of the hardening mixture was obtained in the course of many years of use of the disintegrator as part of the filling complex. The possibility of replacing cement with activated tailings has been proven not only as inert fillers but also as binders, which makes it possible to replace commercial cement with cheaper production of commercial products. Utilization of metals from enrichment tailings of various types of minerals allows the use of secondary tailings without restrictions on sanitary requirements. The combined effect of mechanical and chemical energies allows waste-free disposal of enrichment tailings and creates, in essence, a new base of metal raw materials to meet the needs of industry.

Multi-Criteria System’s Design Methodology for Selecting Open Pits Dump Trucks

“…These emissions are not permanent and do not affect the work of personnel and equipment in the open pit since until the complete dispersion of the dust-gas cloud, after blasting, the resumption of work in the open pit is not allowed. In this regard, environmental issues have a significant influence on the design decisions for deep open pits [16][17][18][19]. The paper [20] shows the influence of different subsystems-the opening-up of an opencast system, opencast development system, transportation system, and others-on the sustainability of a mining enterprise.…”