Your challenges
Patented drinking water treatment process

Increasing micropollutants in raw water
Water resources are under growing pressure from pesticides, pharmaceuticals, industrial solvents, and other micropollutants. Even at low concentrations, the variety of contaminants can create a harmful “cocktail effect” with potential long-term health risks. The CarboPlus® activated carbon filtration process is proven to remove these substances effectively, protecting public health and the environment.
Health safety and regulatory standards
Drinking water regulations are becoming more demanding — especially for pesticides, treatment by-products, and emerging contaminants like PFAS. Utilities need solutions that eliminate pollutants without producing toxic transformation residues. CarboPlus® offers a safe, proven, and reliable water purification process that helps you stay compliant now and in the future.
Integration into existing plants
Many treatment plants must be upgraded to meet new standards without building costly new infrastructure. CarboPlus®’s compact and modular design integrates seamlessly into existing facilities and allows for future expansion to meet evolving water treatment needs.
Operating cost control
Rising energy costs and the need to reduce chemical consumption make efficiency essential. CarboPlus® is automated, low-maintenance, and highly energy-efficient, offering a cost-effective and dependable solution for public water utilities.
How does it work ?
Adsorption
Retention
Compliance
Our positive impact
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Reliable and effective
CarboPlus® removes a wide range of micropollutants, including pesticides, pharmaceuticals, chlorinated solvents, and endocrine disruptors — without chemical transformation. This ensures pollutants are permanently removed rather than altered into potentially harmful by-products. Performance remains consistent over time, even under fluctuating raw water quality conditions.
Compact and integrable
The small footprint of the CarboPlus® process allows it to be easily installed in both new and retrofit plants, even in spatially constrained or environmentally sensitive areas. It is already operating successfully in several high-protection zones.
Cost-effective
With low energy requirements and no need for chemical additives, CarboPlus® offers significant operational savings. It can operate with various types of granular activated carbon tailored to local water quality, making it a future-proof solution aligned with upcoming regulations.
Easy to operate
CarboPlus® has no electromechanical parts inside the reactor. Water-carbon separation occurs naturally by gravity, and the system’s automation minimizes operator intervention. It can adapt to seasonal changes in raw water quality, ensuring consistent performance year-round.
Key figures
"“With CarboPlus®, Stereau provided us with a tailor-made solution addressing both our micropollutant challenges and future regulations. It’s an investment in the future.” "
Paul Manceau
President of SIAEP, Western Cholet Region