Improvements in Circular Economy performance in PET recycling in Cuba

Abstract

The sequence of operations for recycling polyethylene terephthalate (PET) in Cuba includes the supply chain and a unique mechanical recycling plant. The objective was to evaluate and improve performance in terms of the Circular Economy in PET recycling. A methodology strengthened by a process approach, the use of Six Sigma (6σ) tools, circularity assessment, environmental impact assessment, and a technical, economic, environmental, and social pre-feasibility study of the corrective action plan and continuous improvement opportunities was used. The results revealed nonconformities that confirmed performance deficiencies. Based on the causal analysis, a plan of measures was proposed, including technical-organizational and engineering solutions, which will enhance and increase selective collection and recycling nationwide, restore the Recycling Plant's design capacity, and improve product quality. The profitability indicators and sensitivity analysis were favorable. Short-term measures related to technical-organizational aspects and best practices are being implemented. Likewise, with the measures that require investment, in accordance with the investment process regulations. The results obtained corroborate the validity of the methodology used, and constitute a viable and relevant tool for public policies. It can be generalized to the organizational structures of the Recycling Business Group (GER), as well as to the rest of the country's business organizations, particularly in the process industry.