Boosting Sustainability in Industrial Water Treatment Using Bio-Based Solutions

BioVesi project is a joint initiative by the University of Oulu, Häme University of Applied Sciences, and LUT University to develop bio-based water treatment solutions for side streams in the food industry. Currently, these streams contain valuable components such as fats, proteins, and carbohydrates that end up in wastewater treatment, even though recovering and utilizing them would improve the circular economy and reduce the use of clean water. In this project, research institutions and ten companies combine their expertise to create cost-efficient and environmentally friendly processes aimed at achieving carbon neutrality and improving profitability. The solutions are based on bio-based coagulants, such as tannin-based products and lignin components, as well as 3D-printed filters utilizing cellulose, hemicellulose, and lignin. In addition, biological methods are being explored, such as the use of microalgae and fungal mycelium, as well as anaerobic processes for the removal of organic matter and nutrient recovery. The goal is to develop integrated concepts that combine biobased processes with other innovative technologies, i.e. nanobubble and electrochemical technologies, and to demonstrate their functionality at a larger scale. The project promotes the development of new products and technologies, increases water recycling, and supports the sustainable growth of Finnish SMEs and the food industry.