The reuse of human urine would allow for the production of sustainable fertilizers for urban agriculture, with significant environmental benefits. This is the conclusion of a study conducted by the ICTA-UAB … . In addition to promoting sustainable agriculture, it would reduce CO2 emissions and water consumption.

[T]he article, published in the scientific journal Resources, Conservation and Recycling, explains that the use of urine allows exploiting local resources and minimizes the use of external inputs, contributing to the sustainability of the agricultural process. Furthermore, it reduces dependence on limited resources and supports a more environmentally responsible cycle.

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Although this is still a laboratory-scale study, the results show that the environmental and economic impact would be reduced if urine recovery were carried out on a larger scale, by connecting all the urinals in the building to the nitrogen recovery reactor. Experimental work is still being conducted, such as the analysis of pharmaceutical compounds consumed by people and their potential appearance in crop tissues.