Large public events (forums, championships, contests, olympiads) are events with a large number of spectators and participants, which, as a rule, leads to the generation of a large amount of waste. Mass sporting events are no exception, and when planning them, a special role is assigned to the creation of environmentally friendly waste management system. The subject of the research is the concept of waste management at the upcoming World Junior Ice Hockey Championship in 2023 in Novosibirsk. The article also discusses the types of waste generated in the functional areas of the competition grounds, studied the practice of handling solid waste: possible technologies for utilization and collection. The scheme of waste management at various stages of sports competitions is presented. Reasonable waste management should be based on the following principles: waste minimization, repair and restoration of faulty equipment and inventory, reuse of goods and materials, maximum recycling and composting, minimum burial and storage at landfills. Based on the results of the article, the main methods and recommendations for effective waste management at WJC-2023 were identified