Project partners: Biokolprodukter Global AB (project manager), Växjö Småland Airport (customer), Linnaeus University (research partner)
Grant: SEK 600,000
Project duration: 2025-11-01 – 2026-10-31
Contact person: Jacqueline Hellmann, Biokolprodukter Global AB
Purpose and objectives
The project aims to develop and verify a filter solution based on locally produced biochar for PFAS treatment at airports. PFAS are persistent, spread from historical firefighting exercises and threaten both soil and aquatic environments. The need for cost-effective and sustainable solutions is particularly great for smaller airports. The aim is to develop a filter concept and verify specific biochar’s adsorption capacity, regeneration potential and conditions for reuse, creating a basis for a circular and commercial solution.
Expected impacts and results
Our innovation combines high-performance biochar with circular processes: PFAS is adsorbed in the filter, the biochar is regenerated via pyrolysis and the flue gas is treated at high temperature to destroy PFAS. The goal is that regenerated biochar can be reused as a soil amendment and contribute to carbon sink, more drought resistant soils and improved nutrient holding capacity. The project focuses on water treatment, but exchanges with actors studying PFAS immobilization in soil with biochar create synergies around the PFAS issue.
Planned approach and implementation
The project includes column tests and analysis for filter performance, development of filter prototype together with customer, test of regeneration potential in lab pyrolysis, business model and climate benefit calculation, and scientific publication together with Linnaeus University. The results form the basis for future full-scale demonstration at Växjö Småland Airport and then commercialization and implementation at other airports. The project combines technological innovation, climate benefits, circularity and gender equality, with women and men in significant roles in all parts of the work.
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Goals and tasks
- Resilient supply and management of water in society
- Adapt society to flooding and drought
- Secure supply and management of water
- Thriving and healthy waters
- Prevent and reduce the spread of hazardous substances
- Reduce negative impact on water ecosystems
