Optimizing the use of industrial wastes for sustainable spatial development within the framework of the eco-friendly concept

Abstract

Addressing the issue of using wastes as secondary raw materials allows solving the problems of greening the environment, ensures sustainable development of territories and, at the same time, increases the potential of construction companies, contributes to reducing the area of ash dumps from heat and electricity production plants (HEPPs) and state district electricity production plants (SDEPPs). In view of this, the study proposes an optimized scheme of recycling secondary raw materials, which implies defining the effective radii of these products transportation and creating a demand between the manufacturing and prospective consumption of wastes from HEPPs and SDEPPs. Such a scheme solves the problems associated with the reduction of the area of ash dumps of HEPPs and SDEPPs; tactical level of development of the construction sector due to expanding the range of building materials; improvement of the territorial distribution of construction enterprises; and enhancement of the quality of construction and installation work. At the operating level, it implies using innovative resource-saving design, product and material technologies; creating an efficient structure of material resources of the construction sector; reducing cost of construction and installation work, etc. To address the problem of using wastes from HEPPs and SDEPPs, the paper analyzes a model that accounts for the optimal capacity and specialization of the enterprise using secondary raw materials. The model provides for determining what types of materials and in what quantity should be produced by the enterprises included in the optimal plan, creating a rational scheme of recycling secondary raw materials that includes establishing the optimal radius of transportation. Moreover, with the help of the model, transport coefficients are obtained, and dependences showing the relationship between the transport costs and the optimal transportation distance for eachtype of construction product are composed. As a result of the calculations, optimized perspective schemes of recycling wastes from HEPPs and SDEPPs are created. The schemes involve defining the effective transportation radius, which is calculated as a weighted average volume of the freight transported. Furthermore, due to the usage of secondary raw materials, the balance of manufacturing and prospective consumption of the products considered is obtained.