The linear economy has been the dominant type of economy over the past decades or even centuries. But this model of the economy has caused a large number of issues and problems related to scarce resources, the negative impact on environment components and the social well-being. In contrast to the linear model, the circular economy model has developed in recent years. In the circular economy waste and obsolete goods are sources of materials and energy that should be used. Mining and processing companies around the world are adopting new technologies to contribute to the achievement of Sustainable Development Goals and to the creation of the circular economy. Companies' experience shows that the treatment and reuse of solid waste has a positive impact on the achievement of the Sustainable Development Goals. But not all companies implement new technologies to use wastes and introduce circular economy methods to enterprises. The presented thesis introduces the assessment of negative impact on the environment from slag dumps at an operating enterprise. To reduce the impact a recycling method for the slag was proposed and the equipment was selected. The calculations were carried out on economic efficiency to prove the feasibility of the proposed project. The results showed that the implementation of the project in the enterprise pays off in less than a year, and allows to reduce the negative impact on the components of the environment.