
FMI Process signs a licensing agreement with Tsukishima JFE Aqua Solutions for an innovative sewage sludge incineration technology
Andrézieux Bouthéon, June 11, 2025 – FMI Process, a subsidiary of the SNF Group, is pleased to announce the signing of a licensing agreement with Japanese company Tsukishima JFE Aqua Solutions Co. Ltd (TJAS) for the deployment of Pressurized Fluidized Bed Incinerator technology in Europe.
This pressurized fluidized combustion system, developed by TJAS, represents a major advancement in thermal sewage sludge treatment. It offers outstanding energy efficiency and emission reduction performance. Already proven in Japan with over 20 installations—including in Tokyo and Osaka—this solution is particularly well-suited for large urban areas, with treatment capacities ranging from 10,000 to 100,000 tons per year.
With over 25 years of expertise in the engineering, construction, and operation of fluidized bed processes (notably in Saint-Étienne, Thonon-les-Bains, Milan…), FMI Process will lead the deployment of this technology in the European market.
In Europe, increasingly strict regulations are limiting the direct reuse of sewage sludge in agriculture, a practice that was once common. At the same time, the demand for phosphorus recovery and PFAS treatment is growing, driving the need for thermal recovery solutions.
This agreement aligns with the European Union’s ambitious goal of achieving carbon neutrality. By introducing this technology, FMI Process will contribute to more sustainable sewage sludge treatment, combining environmental performance with energy efficiency.

Simplified system diagram
Thanks to its innovative design, the system uses the energy from combustion gases to power the turbocharger and generate combustion air. This eliminates the need for a fluidization blower and an induced draft fan—two energy-intensive components in conventional fluidized bed incinerators. The result is a significant reduction in electricity consumption, enhancing the overall energy efficiency of the process.