Luleå University of Technology is growing rapidly with world-leading expertise in several research areas. We shape the future through innovative education and groundbreaking research results, and based on the Arctic region, we create global social benefits. Our scientific and artistic research and education are conducted in close collaboration with international, national and regional companies, public actors and leading universities. Luleå University of Technology has a total turnover of almost SEK 2.1 billion per year. We are currently 1,900 employees and have 18,700 students. In the coming years, billions of kronor will be invested in Norrbotten and Västerbotten in major projects aimed at a more sustainable society nationally as well as globally. Luleå University of Technology is involved in several of these highly topical research projects and the social transformation that follows. We have a wide range of programs to match the skills that are in demand. We hope you will help us build the sustainable companies and societies of the future. The research group in Biochemical Process Engineering, part of the Department of Civil, Environmental and Natural Resources Engineering with about 350 employees, conducts groundbreaking research in industrial biotechnology. The group is characterized by a strong ambition to be at the forefront of research and is continuously expanding its research activities. Currently, our group consists of 30 employees and several undergraduate students. Read more about our research here: Biochemical Process Engineering. We are now looking for a PhD student who wants to be part of our research focusing on new methods for valorizing aquatic biomass to support ecosystem-friendly resource use. Our research is conducted in close collaboration with national and international universities, industrial partners and research institutes. Subject description Biochemical Process Engineering focuses on biochemical processes for the production and processing of chemicals, fuels and materials from biomass. Project description The PhD project is part of the project "Blue Forest for Norrbotten: Valorization of aquatic biomass and Governance Frameworks for Sustainable Deployment", funded by LTU. The aim is to valorise locally available aquatic biomass, both cultivated filamentous green algae and harvested invasive species, through sustainable biorefinery processes in combination with regulatory analysis to facilitate future implementation. Work includes isolation and cultivation of native algal species, integration of CO₂/pH control to increase biomass productivity, application of hydrothermal pretreatment for digestion, and enzymatic saccharification to produce biogas and valuable products. In parallel, governance, permitting processes and policy frameworks are analyzed to ensure a legally robust and sustainable implementation. This interdisciplinary project combines biochemical process engineering with environmental law and contributes to regionally relevant solutions for the utilization of aquatic biomass within the SUN Graduate School. The PhD student will also participate in the EU project within the Sustainable Blue Economy Partnership, "Unlocking the Potential of Seaweeds and Halophytes through Biorefinery for Enhanced Resilience in the Aquaculture Agri-Food and Chemical Industries". Work tasks As a PhD student, you will be trained in scientific thinking and writing. The work is problem-focused and gives you the skills to identify, define, formulate and solve challenges of both practical and theoretical nature. You will also develop the ability to deal with complex theoretical and analytical issues and integrate these into practical applications. The majority of your time will be devoted to your own research project. You will work independently on your project, with the support of your supervisors, and disseminate your results through publication in peer-reviewed scientific journals and through presentations at national and international conferences. Your training will also include advanced courses tailored to your research area. In addition, you will have the opportunity to gain teaching experience. Qualifications To be eligible for the position, you must have a Master's degree in Biotechnology, Chemical Engineering, Biochemical Engineering or a related field. Previous research experience is an advantage. Experience in relevant analytical methods, biomass characterization, cultivation of algae or aquatic plants, bioprocess methods (e.g. pre-treatment, enzymatic hydrolysis, digestion). Previous experience in disseminating scientific results, both orally and in writing, is also a strong qualification. A collaborative approach, with the ability to effectively participate in teamwork and multidisciplinary projects, is also considered a strong merit. For further information on the doctoral program, see: General Study Plan of the Faculty Board of Science and Technology. Information about the program Employment as a doctoral student is limited to 4 years, teaching and other departmental duties may be added up to 20% of full time. Location: Luleå. Start date: As soon as possible. Salary according to local guidelines. For more information, please contact: Paul Christakopoulos, Professor and Head of Biochemical Process Engineering, 0920-492510, paul.christakopoulos@ltu.se Ulrika Rova, Professor of Biochemical Process Engineering, 0920-491315, ulrika.rova@ltu.se Alok Kumar Patel, Senior Lecturer in Biochemical Process Engineering, 0920-491570, alok.kumar.patel@ltu.se Trade union representative: SACO-S Diana Chroneer, 0920-49 2037, diana.chroneer@ltu.se OFR-S Marika Vesterberg, 0920-49 1721, marika.vesterberg@ltu.se How to apply We prefer that you apply for the position via the application button below where you attach a cover letter, CV/resume and copies of verified diplomas. Please mark your application with the reference number below. Both the application and the diplomas must be written in Swedish or English. Deadline for applications: February 16, 2026 Reference number: 7047-2025