Since 2024, BlueGreenery and Biostoom are showing industrial symbiosis in action in Ostend: Biostoom converts residual waste into green power, while BlueGreenery reuses Biostoom’s residual heat to support sustainable land-based seaweed production.

BlueGreenery has developed a strong example of industrial symbiosis in Ostend through a collaboration with its neighbouring company Biostoom. Biostoom is a waste-to-energy plant that converts residual waste into green power and produces residual heat as part of its industrial process. Instead of letting this energy go unused, BlueGreenery and Biostoom created a partnership where by-products are used more efficiently across company boundaries.
BlueGreenery is an innovative food production company that grows seaweed on land and develops sustainable seaweed-based ingredients. Their land-based cultivation approach allows them to produce high-quality seaweed in a controlled environment, supporting the shift toward more circular and climate-friendly food systems.
A key part of this symbiosis is that BlueGreenery uses Biostoom’s residual heat to help maintain stable growing conditions. This reduces dependence on conventional energy sources and improves overall efficiency. What started as two neighbouring companies operating separately has evolved into a close partnership that supports both industrial sustainability and circular economy goals.
This collaboration shows how industrial symbiosis can turn waste streams into valuable resources. By connecting local green energy production with industrial heat demand, BlueGreenery and Biostoom strengthen their environmental performance while helping accelerate the transition to net-zero industry.