Water treatment: Ozone, a solution for protecting our resources

Published on September 25, 2026

2 minutes

How can we remove residual pharmaceuticals and pesticides that contaminate our rivers? To help solve this, Air Liquide provides cities with ozone technology, a highly effective and sustainable way to clean water and protect natural ecosystems.

Our rivers and streams face an invisible threat: micropollutants. These are the tiny traces of medications, cosmetics, and household products that end up in our wastewater and resist traditional treatment methods.

Thanks to their expertise and experience, Air Liquide teams help our customers to thoroughly destroy these pollutants using a single molecule: ozone. This efficient and powerful solution has successfully supported numerous municipalities for several years.

"At the municipal level, our customers face a major challenge: new European directives require wastewater treatment plants to reduce by 80% micropollutants - like medication, cosmetic residues, and household chemicals. While these treatment plants are well equipped to deal with traditional solids, carbon and nitrogen loads, removing micropollutants is a new challenge. We solve this by guiding municipalities through every step of implementing ozone technology, from supplying specialized equipment for ozone dosing to creating synergies within the process to reduce overall energy costs. This allows municipalities to meet strict environmental standards while optimizing their entire wastewater treatment plant operation."
Jan Mante, Water Treatment & Gas Injection into Liquids Expert Leader, Air Liquide.

Watch the video to see how our experts are revolutionizing water treatment with ozone:

Viewing this video may result in cookies being placed by the vendor of the video platform to which you will be directed. Given the refusal of the deposit of cookies that you have expressed, in order to respect your choice, we have blocked the playback of this video. If you want to continue and play the video, you must give us your consent by clicking on the button below.