In 2013 the Swedish Environmental Protection Agency established new suggested limits for
cadmium in biofertilizer. Some biogas producers have already stated that they will have
difficulty to cope with the new suggested limits. This has started a conflict between the
environmental goals “Giftfri miljö” and “God bebyggd miljö”. In this study six biogas plants
has been studied to see how their biofertilizer relate to the suggested limits. They were
selected according to their location and the size of their foodstuff substrate. The results
demonstrate that the problem is associated with high cadmium concentrations in imported
foodstuffs. By influencing the Public Procurement Act, Swedish foodstuff could be favored
and the cadmium content decreases in the biofertilizer. The result demonstrates that
Linköping is the facility that is least able to cope with the suggested limits and Helsingborg is
the facility that has the best potential. The main conclusion of this study is that EU must work
together to achieve the goals that the Swedish Environmental Protection Agency wants to
achieve. If EU is working together to improve the Public Procurement Act, stricter limits for
cadmium concentration in foodstuffs may be established and thus the cadmium concentration
in foodstuff would be reduced.
2014. , 64 p.