Periodic Reporting for period 3 - BAM (Super Bio-Accelerated Mineral weathering: a new climate risk hedging reactor technology)
Okres sprawozdawczy: 2024-03-01 do 2025-08-31
In nature, certain rocks naturally react with CO2 and lock it away in stable forms — a process known as mineral weathering. However, this natural reaction happens over thousands of years, far too slowly to make an impact on today’s climate crisis. The BAM! project explored how this process could be greatly accelerated using a combination of natural biological activity and modern engineering.
The overall aim of BAM! was to create the scientific and technological foundation for a reactor-based system that speeds up the natural weathering of minerals to capture CO2 more efficiently.
Specifically, the project sought to:
1. Understand how biological and physical processes can work together to enhance CO2 uptake by minerals;
2. Develop a prototype “hybrid reactor” to study these accelerated reactions in a controlled environment;
3. Use data and modelling tools to guide future design and application of such systems.
By linking natural processes with innovative technology, BAM! aimed to demonstrate a new pathway for carbon dioxide removal that could complement other climate mitigation efforts and support Europe’s move towards climate neutrality.
The project began by testing a wide range of natural materials and biological components under laboratory conditions to identify the most promising combinations for enhanced weathering. These studies showed that both biological activity and physical conditions (such as mixing and exposure to air and water) can significantly increase the rate at which rocks absorb CO2.
Building on these findings, BAM! designed and built an advanced experimental reactor that allowed researchers to observe and control the weathering process in real time. This new system made it possible to measure CO2 capture rates more precisely and to test how different operating conditions affect performance.
Digital tools, including machine learning, were used to analyse large amounts of data and to identify which conditions led to the most efficient CO2 uptake. This data-driven approach reduced the need for lengthy trial-and-error experiments and improved understanding of the key processes involved.
The project also explored practical routes for applying the concept in the future, for example by using industrial residues such as mineral by-products from manufacturing. These materials could potentially serve as feedstock for weathering systems, turning waste streams into resources for climate mitigation.
Results and insights were shared through scientific publications, open data, and outreach activities, contributing to the wider knowledge base on carbon removal and helping to inform future technological development and policy discussions.
The project established a new experimental platform for testing and optimising mineral weathering under controlled conditions, providing a scientific basis for future development of reactor-based CO2 removal systems. It also showed how artificial intelligence can be used to make complex environmental research more efficient and predictive.
In the long term, these advances could contribute to a range of positive impacts:
- Climate impact: offering a new, nature-based yet technology-enabled approach to remove CO2 from the atmosphere;
- Environmental benefit: potential use of abundant natural and recycled minerals without harmful side-effects;
- Economic opportunity: new uses for industrial by-products and new avenues for low-carbon innovation;
- Societal value: contributing to Europe’s leadership in sustainable climate solutions and supporting the goals of the European Green Deal.
By creating a bridge between natural science and engineering, BAM! has delivered an important proof-of-concept for bio-accelerated mineral weathering as a safe, scalable, and sustainable carbon dioxide removal option. The knowledge generated lays the groundwork for future research, pilot applications, and partnerships that could help society move closer to a climate-neutral future.