FILM The Baltic: A Sea of Opportunity This 18-minute film highlights circular solutions for recovering and reusing nutrients in wastewater and agriculture. WATCH FILM about the project BONUS RETURN BONUS RETURN is exploring how ecotechnologies can turn nutrients and carbon from environmental problems into circular solutions in the Baltic Sea Region. READ MORE problem Eutrophication The Baltic Sea Region's ecosystems are among the most threatened in the world. The oxygen levels are historically low due to nutrient run-off from agriculture and waste water. READ MORE mission Turning Waste into Resources BONUS RETURN aims to foster an evidence-based dialogue on circular innovations for recovering and reusing nutrients that responds to environmental, economic and societal needs, and informs decision-making in the Baltic Sea Region. READ MORE
FILM The Baltic: A Sea of Opportunity
Problem Threat of marine and land pollution
MISSION REUSE – Turning waste into circular solutions

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In 2018, a Swedish Government inquiry was set up to explore how to implement a ban on the decades-old practice of spreading sewage sludge on farmland and set new requirements for recycling the phosphorus found in sludge.

Municipal officials and local business leaders in the Polish city of Słupsk aren’t waiting for the benefits of the circular economy in renewable energy production and waste recycling to come to their corner of the Baltic Sea Region.

Phosphorus run-off from agriculture fields in southern Finland is the largest threat to water quality and living marine resources in this area of the Baltic Sea. Decades of attempts to reduce this run-off through traditional farming methods have proven inadequate.

Swedish sludge management at the crossroads
On 17 January 2020, a Swedish government inquiry published its recommendations on how to create a circular economy for phosphorus, a vital plant nutrient that is plentiful in sewage sludge, while reducing the perceived public and environmental health risks linked to spreading sludge directly on farmland.

Final Report

Photo taken in Laboe, Germany
Results, Conclusions and Recommendations

Project highlights

Final Conference Presentations Cover
Final Conference Presentations

The overall aim of BONUS RETURN was to improve the adaptation and adoption of agriculture and municipal wastewater ecotechnologies for capture and reuse of nutrients and carbon in the Baltic Sea Region.

Mission Blue – Exploring Circular Interventions in the Baltic Sea Region
Photo taken in Laboe, Germany
Final Report: Results, Conclusions and Recommendations

About the Project

More information
Our Mission

Our mission is to partner and engage with many other Baltic Sea initiatives in the region, support existing and upcoming efforts, and bring together avariety of stakeholders – local authorities, researchers, policymakers, municipalities, investors, civil society and private-sector innovators; to find practical solutions towards reducing emissions by turning nutrients and carbon into profit, in the Baltic Sea Region.

Polluted swampy river. Green water surface and thickets of marsh reeds. Seasonal flowering of diatoms
What We Do

Starting from a circular economy approach,Bonus Return shows the potential for eco-technologies to turn pollution and waste into profit in the Baltic Sea Region.


Reducing emissions by turning nutrients and carbon into benefits

Bonus return IN numberS

case study sites
in the Baltic Sea Region
in the BONUS RETURN project
received pre-commercialization & implementation support