Scaling Deep-Tech Innovation And Inspiring The Next Generation Of Mining Talent

In this video interview, Riina Salmimies, CEO of EIT Award-winning cleantech startup Sofi Filtration, shares the story behind the company’s breakthrough ultrasound-based, self-cleaning wastewater filtration technology — the first of its kind worldwide. 

Sofi Filtration’s patented solution enables the recovery of ultra-fine particles from industrial process water, opening new possibilities for more efficient and sustainable resource use, particularly in mining and raw materials processing. 

In the conversation, Riina reflects on what it takes to scale a deep-tech innovation from pilot to industrial deployment, why mining offers exciting and meaningful career opportunities for the next generation of engineers and innovators, and how collaboration and long-term support have been essential to Sofi Filtration’s growth journey. 

She also highlights the role of EIT RawMaterials in supporting Sofi Filtration’s development — from early-stage backing to investment and strategic guidance — as the company expands its impact across Europe and beyond.