Abstract
The study of the economic efficiency of investments in the production of a mixture of brewing waste provides an opportunity to assess the possibility of its practical use for the restoration of soils contaminated with oil and oil products. The UNIDO methodology is applied to calculate the costeffectiveness of investments in the brewing waste drying line for the remediation of contaminated soils. Fulfillment of the underlying conditions for the effectiveness of investments and the absence of a negative balance in the financial plan indicate the efficiency and feasibility of investments.
Highlights
Agricultural waste, food, and processing industries, including brewing waste, contain a large number of mineral and organic compounds of different chemical nature, most of which can be used by microorganisms in the processes of growth and vital activity [1,2,3]
The brewing waste drying line has a capacity of 0.4 t / h, which corresponds to 384 t / year
At the standard market price for dry grains in the amount of 7,000 rubles/ton and with a full load of equipment in the amount of 384 tons, the annual profit of the Committee for Ecology and Environmental Protection at the Chamber of Commerce and Industry of the Samara Region will consist of the profit from the sale of the reclamation mixture soils contaminated with oil and oil products, and profits from the sale of dry grains for use in livestock feed
Summary
Agricultural waste, food, and processing industries, including brewing waste, contain a large number of mineral and organic compounds of different chemical nature, most of which can be used by microorganisms in the processes of growth and vital activity [1,2,3]. When recultivating soils contaminated with oil and products of its processing, as well as to increase the activity of indigenous microbiota, waste from various agricultural or food industries is often used [4,5,6]. The technology of bioremediation of oilcontaminated soils using the waste from the brewing industry has been developed. This technology has been successfully tested in the treatment of soils contaminated with oil and oil products [7]. This technology for the rehabilitation of oil-contaminated soils involves the use of dry brewing waste. Assessing the feasibility of practical application and implementation of the developed reclamation technology involves calculating the economic efficiency of investments in the brewing waste drying line
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