The Anaerobic Digestions as Key Factor in Proposing the Recovery of Renewable Fertilizers in a Circular Economy Frame
The regular production and use of mineral fertilizers in agriculture have a long track record of impacts on the environment beyond the mere addition of nutrients to the soil. Nevertheless, it has been estimated that the world demand for fertilizer will increase by 7.9 % in 5 years (from 2017
to 2022) according to Food and Agriculture Organization (FAO).
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