Технічна інженерія (Jun 2023)

Research of physicochemical properties of the fine-dispersed stone waste of the stone processing enterprises for determining the behavior strategy

  • S.I. ,
  • M.I. ,
  • A.V. ,
  • Yu.K. ,
  • N.M.

DOI
https://doi.org/10.26642/ten-2023-1(91)-271-279
Journal volume & issue
Vol. 1, no. 91
pp. 271 – 279

Abstract

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Natural facing stone is a limited and non-renewable fossil resource. This resource should be used to the fullest extent in order to the strategy of sustainable development and the main principles of the circular economy. Like any processing industry, the stone processing industry generates waste. There are no clearly established rules for dealing with this type of waste in Ukraine to nowadays. The foreign experience of using waste from the stone processing enterprises is not suitable for Ukraine due to a different type or mineral and chemical composition of the natural stone. The organization of temporary storage requires the allocation of certain lands, which is often irrational, and the construction of special mining and technical facilities. Storage or use for re-filling at solid waste landfills raises some questions related to the ecological and sanitary aspects of such treatment. Waste from stone processing enterprises can be classified according to the size of individual particles into broken stone and fine particles. Fine-dispersed waste is a mixture of crushed stone grains with a size less than 2 mm, i.e. stone dust. These are products of the destruction of the natural stone, tools and materials used in the technological process of cutting and polishing and other substances that can get into the circulating water supply system of the enterprise. An approximate composition of waste is determined using open data of the mineral and chemical composition of natural stone, which is confirmed by the analysis of the waste chemical composition described in Ukrainian scientific researching. Organoleptic, physicochemical, radiation properties, migration rate of heavy metals were studied. Based on the obtained data, it has been concluded that the waste from stone processing enterprises is relatively inert material, which is classified as safe waste, and recommendations have been provided regarding their handling.

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