Irimia Oana graduated from the "Vasile Alecsandri” University of Bacau in 2007, Faculty of Engineering, with a specialization in Engineering and Environmental Protection in Industry, and she completed her Ph.D., specializing in Mechanical Engineering in 2011. Since 2007, she has been a teaching staff member at the Faculty of Engineering, Department of Environmental and Mechanical Engineering, "Vasile Alecsandri” University of Bacau, Romania. During this period, she has held various positions, including Teaching Assistant (2007-2011), Assistant Professor (2011-2015), and Lecturer (2015-2024). Since February 2024, she has been an Associate Professor at the same faculty. Her research interests mainly include water treatment, wastewater management, waste management, environmental quality management, and environmental protection.