SCWG – International Event to Discover the Technology
On 24 November, the city of Salamanca will host an international event jointly organised by CADE and Aqualia, dedicated exclusively to the technical and operational presentation of our SCWG (Supercritical Water Gasification) technology. The meeting will bring together institutional, technical, and industrial representatives from Spain and France, including GRDF, as well as an important French delegation from the energy and environmental sector, travelling specifically to learn first-hand about our development.
The objective of the event is to present, analyse, and discuss the real operation of our SCWG technology, validated at the Salamanca WWTP (EDAR), and its ability to transform sludge and wet waste into renewable energy vectors such as hydrogen and biomethane.
CADE’s technological development
At CADE, we have led the entire technological process associated with hydrothermal gasification: from research and conceptual design to detailed engineering, the development of the pilot plant, and its operation under real conditions in a WWTP.
Our technology is attracting growing international interest, particularly in France, due to its potential to improve the energy and environmental efficiency of wastewater treatment infrastructures. The presence of GRDF and several key French energy-sector stakeholders in Salamanca confirms the strategic relevance of CADE’s SCWG as a solution for achieving more sustainable waste management.
Its main advantages include:
Production of renewable hydrogen and biomethane from wet sludge.
Elimination of drying stages, reducing both costs and emissions.
Significant reduction in final waste volume.
A scalable, modular, and easily integrable process for existing WWTPs.
Direct contribution to the circular economy and decarbonisation of the water cycle.
Thanks to these results, SCWG stands out as one of the most promising solutions to turn wastewater treatment into a positive-energy-balance process.
Aqualia and CADE: collaboration to demonstrate the technology in real conditions
The event will take place at the Integrated Water Cycle Innovation Centre, located at the Salamanca WWTP and operated by Aqualia, where our SCWG pilot plant is installed and fully operational.
This facility has been essential for demonstrating the technology in a real environment, assessing its performance and effectiveness under representative WWTP conditions. The collaboration between Aqualia and CADE has enabled the creation of a benchmark demonstration space for international operators and organisations interested in sludge-to-energy solutions.
A meeting focused exclusively on SCWG technology
The programme on 24 November is centred solely on SCWG technology developed by CADE. It includes:
Technical sessions to explore the process and its results.
An institutional Spain–France exchange with GRDF and other key actors.
A live operational demonstration at the Salamanca pilot plant.
The presence of GRDF and a French delegation reinforces Europe’s growing interest in solutions that enable the integration of renewable hydrogen and biomethane into energy systems.
CADE: fostering innovation and international cooperation
For CADE, this event is an opportunity to share knowledge, promote new partnerships, and continue advancing toward a more sustainable and circular energy model.
The collaboration with Aqualia and the increasing international attention received by our SCWG technology demonstrate our contribution to transforming the water cycle through technological innovation and sustainability.
We work with a clear vision: to transform industry through technological solutions that support a more efficient, decarbonised, and resource-conscious future.
With SCWG, we prove that it is possible to turn waste into renewable energy, optimise traditional processes, and open new opportunities in the water and energy sectors. The presence of GRDF and a French delegation highlights the importance of international cooperation to accelerate this transformation.
