Dr. Sunita Varjani is currently working as a researcher at the City University of Hong Kong, Hong Kong. She also holds the position of Adjunct Professor at the University of Petroleum and Energy Studies, Dehradun, Uttarakhand, India. She has worked as Scientific Officer at Gujarat Pollution Control Board, Gandhinagar, Gujarat, India. Her major areas of research are Industrial & Environmental Biotechnology, Wastewater Treatment & Process Engineering, Bioprocess Technology and Waste Management. Her current research focus is on developing circular waste-based biorefineries for the sustainable production of chemicals and fuels. Dr. Varjani has worked as visiting scientist at EPFL, Lausanne, Switzerland. She has 485 publications, including research and review papers, books, book chapters and conference communications. She has been enlisted as a “Highly Cited Researchers 2022” list published by Clarivate’s Web of Science. She has been enlisted as a Highly Cited Researcher (Top 2% in the World), Elsevier Citation Report (2020, 2021, 2022). She has won several awards, including Young Scientist Awards from The International Bioprocessing Association – An International Forum on Industrial Bioprocesses (2019-2020), Biotech Research Society, India (2018), Microbiologist’s Society India (2018-19), Association of Microbiologists of India (2018), International Society for Energy, Environment and Sustainability (2018) and AFRO-ASIAN Congress on Microbes for Human and Environmental Health, New Delhi (2014); Highly Cited and Highly downloaded papers, Bioresource Technology, Elsevier, Journal of Environmental Management, Elsevier and Bioengineered, Taylor & Francis; Top Reviewer Award – 2018, Bioresource Technology, Elsevier; Top Reviewer Award – 2017, Bioresource Technology, Elsevier and Best Paper Awards in national and international conferences in 2008, 2012, 2013, 2018, 2019, 2021 and 2022. She has served as deputy editor for Bioengineered journal. She is associate editor for Bioresource Technology, Cleaner & Circular Bioeconomy (CLCB), Sustainable Environment, Spanish Journal of Soil Science and Bioenergy and Biofuels journal(s). She is member of editorial board of Science of the Total Environment, Chemosphere, Current Pollution Reports, Sustainable Chemistry and Pharmacy etc. and has served as guest editor of special issues of several journals. She is editor for Archives of Microbiology and Indian Journal of Microbiology journal(s). She is Management Council Member of the BRSI and an Executive Committee Member of the International Society for Energy, Environment and Sustainability.