Circular Economy in Manufacturing: Optimization using Lean Six Sigma Alexandr K. Orlov, Ramy Riad Hussein, Yerragudipadu Subbarayudu, Tarun Kapoor, Pramod Kumar, Lavish Kansal, Nishant Bhardwaj, Yogesh Kumar and K. Prasanna Lakshmi E3S Web Conf., 581 (2024) 01016 Published online: 21 October 2024 DOI: 10.1051/e3sconf/202458101016