There are places that seem like reminders of mistakes that can never be undone. Old uranium mines, contaminated water, and landscapes scarred by industry. But this is precisely where a turning point is emerging. After three intensive years, the SURRI project demonstrates that old mining sites need not be merely symbols of an ecological debt, but can also mark the beginning of a new future.
The international SURRI project—Sustainable Remediation of Radionuclide Impacts on Land and Critical Materials Recovery—was born from a simple yet powerful idea: to combine the remediation of land after uranium mining and the handling of radioactive materials with the extraction of valuable raw materials. In other words, the project did not focus solely on repairing the damage left behind by mining, but also sought a way to extract strategically important metals from these sites.
What we throw away today may be missing tomorrow
At a time when Europe’s resources are dwindling and talk of strategic raw materials is growing louder, SURRI offers a new perspective on what we currently consider waste. We already know how to recycle paper, plastics, and glass. The real challenge lies elsewhere: in materials that are both technologically and geopolitically crucial, and whose availability will determine the future of industry, energy, and society as a whole.
Scars on the Landscape
Across Europe, there are hundreds of sites that were once used for uranium mining or the handling of radioactive materials, often with little regard for the environmental consequences. And even long after mining has ceased, these areas remain a serious burden on the environment and the health of local residents. The Czech Republic is no exception. On the contrary. Nearly a hundred sites where uranium was mined or processed represent a legacy that cannot be ignored.
The most serious case is Stráž pod Ralskem. A site where, over decades, more than four million tons of acids were pumped underground and where hundreds of millions of cubic meters of groundwater were contaminated. Removing this burden is taking and will take decades. And it will require funds in the range of many hundreds of millions of euros. This is a reality that clearly demonstrates that environmental damage is not merely a technical problem. These are costs that spill over into the economy, public health, and the future use of the landscape.
The Power of International Collaboration
The project leader is the Technical University of Liberec. The University of Southampton, Sapienza University of Rome, and the University of Granada are collaborating on the project; in the Czech Republic, CXI TUL is also working with the national enterprise DIAMO, which supports knowledge transfer. It is precisely this international and interdisciplinary connection that is one of SURRI’s major strengths. The project is not based solely on the exchange of knowledge among partners, but primarily on finding concrete solutions for sites contaminated with radionuclides. Over the course of three years, it has thus laid the foundations for a strategic European approach to the sustainable removal of these contaminants and the recovery of metals such as Zn, Cu, Fe, or As— . This was achieved through a combination of technologies that sound almost like a glossary of the future: electrokinetic remediation, microbial remediation, and phytoremediation.
Electricity Instead of Heavy Machinery
For example, it has been confirmed that electrokinetic remediation using low-voltage currents is energy-efficient and therefore well-suited for use at contaminated sites. For the layperson, it can be imagined somewhat like two magnets attracting certain chemical substances, except that electricity is used instead of magnetism, and we extract metals from the waste materials.
Bacteria Can Do More Than Just Clean
It has also been shown that bacteria do not have to serve only to remove pollution. They can also participate in the conversion of certain substances into valuable materials, such as zinc oxide nanoparticles.
Nature as part of the solution
Nature also plays a role. Plants, such as duckweed or sunflowers, can help clean contaminated soil while reducing dust, which harms both people and the surrounding landscape. Such places can then become safer and gradually recover. It sounds like a combination of the laboratory, the field, and ecology. And that is exactly what SURRI is.
The project ends, the journey continues
Moreover, SURRI has shown that real progress cannot happen without cooperation between science, industry, and public administration. This is another reason why it paves the way for a virtual European center of excellence led by TUL. Although the project is formally ending, plans to build on the results achieved are already underway. This could be the beginning of a platform that moves technologies from laboratory research through pilot testing to their full practical application.
