Abstract

The growing awareness of threats to the natural environment puts a lot of emphasis on the development of environmentally friendly technologies and expects that economic and civilization development will take place in a sustainable way. In addition to technical tools, strategic concepts are developed with a complex legal, economic and educational character. Their aim is to shape a responsible attitude of societies to the protection of the environment and natural resources. One of such concepts is the near zero waste economy -Circular Economy, which is based on the desire to re-use products, including by-products. This requires not only changing habits, legal norms and appropriate economic tools preferring secondary materials, but above all developing appropriate technologies, because only they can make the secondary one as good as the original one. In the context of these assumptions, the present moment the use of waste materials in Hydraulic Engineering becomes both necessary and common (economically justified). It should be mentioned several areas in which waste materials are used.

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