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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

CarboPlus® eliminates micropollutants through adsorption on suspended activated carbon within an upflow reactor.

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

Over 3,500 m³/h
Treated at Basse-Goulaine with CarboPlus®.
91%
of French rivers are contaminated with pesticides (source: CGDD, 2011).
Up to 0.03 µg/L
Required for some pesticides under drinking water regulations.
"“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

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