Jenni Ylä-Mella


Postdoctoral researcher
Waste and resources management


D.Sc.(Tech.) Jenni Ylä-Mella is a post-doctoral researcher in the Water, Energy and Environmental Engineering (WE3) research unit at the Faculty of Technology. She has 20 years’ experience in WEEE recovery, especially in legislative implementation and infrastructure development. Her current research focus is in circular economy with a special attention in dispersive use and dissipation of critical materials and increasing their recycling.

Research interests

  • Circular economy
  • Resources management
  • Waste management and recovery infrastructure
  • Electronic waste, WEEE
  • Recovery of critical materials


488505A Waste Management and Recycling
488203S Industrial Ecology
488402S Sustainable Development
488143S Environmental Impact Assessment
477013P Prosessi- ja ympäristötekniikan perusta

Tutor teacher 2018-2021

Social media

Scientific merits

Professional and community activities

  • Guest Editor in Special Issue "Municipal and Industrial Waste Management", Resources (MDPI), 2020-2021.
  • Referee in various scientific journals (e.g. in Elsevier, Taylor & Francis, MDPI), 2014-
  • Degree Programme Committee in Process and Environmental Engineering, University of Oulu. Member, 2020-
  • Advisory Board of Climate Actions in Northern Ostrobothnia. Deputy member of the University of Oulu, 2020.
  • Environmental Technology Development Programme, University of Oulu. Programme secretary, 2009-2013.
  • Working group of Master’s Programme on Environmental Engineering, Barents Cross-Border University (BCBU). Member, 2009-2010.
  • Study development groups (Pokki, Jopokki, Thule) at the University of Oulu. Student member, 2006-2015.

Research groups

  • Postdoctoral researcher, Energy and Environmental Engineering Research Group

Selected publications

  • Ylä-Mella, Jenni; Román, Elisabeth (2019) Waste electrical and electronic equipment management in Europe: Learning from best practices in Switzerland, Norway, Sweden and Denmark. Waste Electrical and Electronic Equipment (WEEE) Handbook (2nd Edition). Vannessa Goodship, Ab Stevels, Jaco Huisman. - Woodhead Publishing Series in Electronics and Optical Materials. Duxford, United Kingdom. 483-519, Chapter 18
  • Ylä-Mella, Jenni; Pongrácz, Eva (2016) Drivers and constraints of critical materials recycling: The case of Indium. - Resources 5 (4), 34 . [Original] [Self-archived]
  • Ylä-Mella, Jenni (2015) Strengths and challenges in the Finnish waste electrical and electronic equipment recovery system : Consumers’ perceptions and participation. - Acta Universitatis Ouluensis. Series C, Technica 548. Oulu. Artikkeliväitöskirja. 112, [67]. [Original]
  • Ylä-Mella, Jenni; Keiski, Riitta L.; Pongrácz, Eva (2015) Electronic waste recovery in Finland : Consumers’ perceptions towards recycling and re-use of mobile phones. - Waste Management 45, 374-384 . [Original]
  • Ylä-Mella, Jenni; Poikela, Kari; Lehtinen, Ulla; Tanskanen, Pia; Román, Elisabeth; Keiski, Riitta L; Pongrácz, Eva (2014) Overview of the WEEE Directive and its implementation in the Nordic countries: national realisations and best practices. - Journal of Waste Management 2014, 18, ID 457372 . [Original] [Self-archived]
  • Ylä-Mella, Jenni; Poikela, Kari; Lehtinen, Ulla; Keiski, Riitta L.; Pongrácz, Eva (2014) Implementation of Waste Electrical and Electronic Equipment Directive in Finland : Evaluation of the collection network and challenges of the effective WEEE management. - Resources, conservation and recycling 86, 38-46 . [Original]
  • Ylä-Mella, Jenni (2012) The impact of the WEEE and RoHS directives. Development of a WEEE Recovery Infrastructure in Finland. Lisensiaatintyö. 64, 73 s.

Thesis supervisions

Doctoral theses
  • Aida Hosseinian: Phosphorus Recovery in the Context of Circular Economy (2019-2024)



Energiaviisas satama

Tulevaisuuden tehokas ja kestävä satama on resurssiviisas ja vähähiilinen, mikä edellyttää hiilivapaiden teknologioiden ja energiatehokkaiden ratka
Circular economy

Transition Pathways to Circular Economy

Transition to a circular economy is seen as an essential condition to respond to the challenge of the sustainable use of natural resources in the f