Prof. Noureddine Elboughdiri is a full professor and currently the head of the Chemical Engineering Department, College of Engineering, Hail University, Saudi Arabia. He received his B.Sc., master's, and Ph.D. degrees in Chemical Engineering from the National School of Engineering Gabes, University of Gabes, Tunisia. He joined the Central Laboratory for Analysis and Testing LCAE-Tunisia in 2004 and the SGS Group in 2008, and he has held various teaching and administrative positions, including optimization methods, statistical analysis, academic accreditation (NCAAA/ABET), and industrial accreditation (ISO 17025/ISO 9001), and works on providing reliable solutions to many of the contemporary problems facing the chemical industries. His research interests are in the areas of the removal and valorization of polyphenols from olive mill wastewater (OMWW), optimization by response surface methodology (RSM), and wastewater treatment.