Using bacteria as master recyclers
Short Business Description:
Chemical waste is mostly treated by burning or filtering, which is expensive, inefficient, and releases harmful CO₂. This startup offers a natural alternative by using special bacteria that break down toxic chemicals like PFAS, pesticides, and pharmaceuticals. Developed at ETH Zurich, their technology finds and captures the best bacteria for the task, turning them into eco-friendly products that safely remove pollution. Starting in 2025, they will launch pilot projects with industry partners to make chemical waste treatment more sustainable and affordable.
CellX Biosolutions is a Swiss startup developing next-generation solutions for industrial chemical waste, using biology to replace harmful and outdated treatment methods. Spun out of research at ETH Zurich, the company offers a sustainable alternative to incineration – one of the most common yet environmentally damaging waste disposal practices – by harnessing the power of naturally occurring bacteria.
At the heart of CellX’s technology is a proprietary microfluidic and robotic platform that enables the discovery and selection of highly effective bacterial strains. These bacteria are sourced directly from remote environments and are naturally capable of degrading persistent pollutants such as PFAS (“forever chemicals”), pesticides, and pharmaceutical residues. Once identified, they are combined into specialized bacterial products that biologically break down harmful substances in industrial settings.
CellX’s solution is not just scientifically advanced, but also practical. Their bacterial products are designed to be used directly in existing infrastructure such as chemical waste reservoirs or wastewater treatment plants. This approach avoids the need for costly system overhauls, making the transition to sustainable waste management more accessible for chemical and pharmaceutical producers.
The environmental stakes are high: chemical pollution contributes to an estimated 9 million deaths each year, and traditional waste disposal methods generate substantial CO₂ emissions. CellX aims to reduce this impact significantly. By 2028, the company’s goal is to prevent 200,000 tons of CO₂ emissions by biologically degrading 220,000 tons of chemical waste. Their longer-term vision includes a second product line targeting the direct remediation of soil and water contaminated with PFAS.
The company is led by Estelle Clerc, whose background in biology and environmental science, combined with entrepreneurial drive, guides CellX’s mission to bring practical and effective biotech tools into industry. Under her leadership, CellX is preparing to launch pilot projects with industrial partners.