| Sumario: | The article investigates systemic dysfunctions of gas emission purification technologies in plastic recycling processes. The relevance of the topic is due to the growth of plastic waste volumes and the need to minimize environmental risks associated with polymer recycling. One of the promising ways to solve this problem is the recycling of plastic bottles, which allows partially replacing primary raw materials, reducing waste volumes and reducing the overall burden on natural resources. The purpose of this work is to develop an effective system for purifying process gases generated during the industrial processing of plastic bottles in order to reduce harmful emissions into the atmosphere, ensure environmental safety of production and comply with regulatory requirements for environmental protection. The problem of comprehensive removal of highly toxic compounds (in particular, dioxins and furans) formed during thermal processes remains open. Most of the available technologies provide only partial purification or transfer pollution to other aggregate states, which does not solve the problem as a whole. The issue of secondary pollution, which arises as a result of the use of purification systems (formation of sludge, spent sorbents, toxic residues), which require additional disposal and create new environmental risks, is also insufficiently studied. The main sources of formation of harmful gaseous compounds during thermal and mechanical processing of plastics, as well as the efficiency of existing gas purification systems, have been analyzed. Key dysfunctions have been identified, in particular: technological inconsistency of purification equipment with the composition of emissions, insufficient adaptability of systems to changes in raw materials, energy inefficiency, as well as imperfection of monitoring and control systems. Particular attention is paid to the analysis of barriers to the implementation of innovative environmental technologies in the field of recycling. The need to integrate comprehensive approaches to the purification of gas emissions, combining modern filtration, catalytic and biotechnological methods, is substantiated. Directions for increasing the efficiency of environmental safety of recycling processes are proposed, in particular through the digitalization of control systems, the implementation of the principles of the circular economy and the optimization of technological regimes. The results of the study can be used to improve the environmental policy of enterprises and increase the efficiency of emission management in the field of plastic materials processing.
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