Closed Loop Baltic  

Summary

Eutrophication is considered one of the major environmental concerns in the Baltic Sea region, resulting in biodiversity loss and other negative ecosystem effects. Today, nutrients often come from small but numerous sources such as individual farms not conducting adequate waste treatment.

The Closed Loop Baltic (CLB) project aimed to address the problem of eutrophication of the Baltic Sea through piloting a closed loop system in which nutrients are circulated between energy production (biogas) and food cultivation, instead of being discharged to the sea. The Suderbyn Ecovillage on Gotland developed and tested their model of this system, which resulted in a prototype for biogas production and an evaluation thereof, including the production of a manual. The partners have continued to develop the solution and discuss possibilities and prospects for continuation.