This book highlights the recent findings and advances in science engineering technology and sustainability issues. It aims to discuss, reflect and share experience in addressing the findings in science engineering technology and sustainability. The book aims to report the various interrelated disciplines from different institutions to discuss, reflect and share technology and experience in addressing new findings and strategies. This book presents the proceedings of the Science Engineering Technology and Sustainability International Conference (SETS2021) which was held virtually-as sustainable virtual conferences become the new normal-during December 23-25, 2021. This book is presenting latest research findings, and it is suitable for researchers, postgraduate students, professionals and experts. The book includes interesting and top research in fuzzy modeling and decision-making applications in computer science. Several chapters address trending research about bioremediation and phytoremediation. There are mainly three research findings that cover artificial intelligence, sustainability and new technologies.