Innovative Algae Harvesting Technologies Tested in Lake Enäjärvi

In August 2025, Lake Enäjärvi in southern Finland became the site of an exciting pilot study. Scientists from the Finnish Environment Institute, the Nature Research Centre in Lithuania, and AlgaeTech in the UK joined forces to test three cutting-edge devices designed to harvest algal biomass directly from the water.

The team installed 12 mesocosms — essentially mini test-lakes — in the lake, transforming it into a living laboratory. These controlled environments allowed researchers to study the performance of each harvesting technology under real-world conditions. The focus was on collecting thick mats of cyanobacteria, primarily Dolichospermum and Microcystis, which are common in eutrophic waters and can pose ecological and health risks.

This pilot study aims to assess not only the efficiency and ecological impact of each device but also the potential applications of the harvested biomass. Could it be used for bioenergy, fertilizers, or even bioplastics? The results could pave the way for more sustainable management of harmful algal blooms across Europe and beyond.

Stay tuned for updates as the research team analyzes the data and explores the future of algae-based innovation.