Scenario 2 provided fewer impacts than Scenario 1 for freshwater
eutrophication and non-carcinogenic human toxicity, due to
the displacement of mineral fertiliser when applying digestate on land. These environmental benefits were related mainly to
circumvented phosphorus emissions into water for freshwater
eutrophication and emissions of cadmium and zinc into soil for
non-carcinogenic human toxicity. The production and disposal of
capital goods caused most of the impacts related to carcinogenic
human toxicity (chromium and mercury emissions from steel production)
and the depletion of mineral resources (consumption of
iron, nickel and zinc). For further details and disaggregated LCA
results, see Fig. A5.1. (Annex 5) in the Supplementary material.