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Published on 30 July 2019

ELIMINATION OF ACCUMULATED ENVIRONMENTAL DAMAGE

S.I. Evdokimov, T.E. Gerasimenko, Yu.V. Dmitrak

The purpose of the study is to develop recommendations for increasing the sustainability of mountain development. The method of achieving this goal is to involve waste products of lead-zinc ore processing in the economic circulation. Recycling of wastes whose resource potential allows them to be considered as qualitative technogenic mineral raw materials into a useful production cycle allows to ensure sustainable development of mountain territories that is the growth of allocations to budgets of different levels and to extra-budgetary funds, and the reduction in the unemployment in the region. At the same time, the problem of liquidating the accumulated environmental damage reducing the burden on the natural environment is being discussed. Directly at the site of waste disposals an industrial product is extracted from them comparable in quality to the primary ore. To do this, environmentally friendly and energy-saving collapsible (mobile) complexes without capital foundations are used. The obtained industrial product in a stationary factory is mixed with the initial ore and co-processed according to the scheme of the current production for commodity concentrates. The costs of joint processing are considered, as if they were produced for the development of plots of one large deposit by the holding company. The achieved depth of metal extraction (unalloyed nonmetallic part of the waste) ensured the receipt of a commodity product utilized in the construction industry. Technical and economic calculations show that when investing 228.9 million rubles into the project it is possible to receive 162.4 million rubles of net discounted income with an internal rate of return of 32.5% and a discounted payback period of 4 years. The concentrate separated from the waste and the current production ore are processed jointly in the existing factory using the existing technology. When enrichment of the charge composed of technogenic gravel-concentrate (10%) and ores of current production (90%), an increase in the technological indicators of separation of selective lead and zinc concentrates was achieved. With the joint financial and technological accounting the generalized profitability with an economic effect becomes significantly more positive and sustainable compared to the individual waste processing for the selective concentrates.

CityVladikavkaz
CountryRussia
UDC622.765
Issue2019, № 2 (Т. 11)
Key wordsmountainous areas, sustainable development, waste, primary ore, co-processing, elimination of environmental damage, economic valuation.
Number of views (120)

Categories: Articles, Technical-and-Technological-Issues-of-SDMT

Tags: горные территории, устойчивое развитие, отходы, первичная руда, совместная переработка, ликвидация экологического ущерба, экономическая оценка.

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ISSN 1998-4502 (Print)                                                            ISSN 2499-975Х (Online)