Dr Arja Sarpola is an expert of water chemistry and hydrometallurgy and has extensive knowledge in the laboratory sector. She is now works in University of Oulu as a researcher in Energy and Environmental Engineering Research Unit. She majored in inorganic chemistry and received her DTech in year 2007 in environmental and water technology at Oulu University. Her deep understanding of laboratory analysis and practices is based on her a long career as laboratory technician before the academic graduation. She has also acquired pedagogical qualification from Oulu University of Applied Sciences.