Exploring the Environmental Performance of Urban Symbiosis for Vertical Hydroponic Farming

Urban Farm DB summary

This study used life cycle assessment (LCA) to evaluate the environmental performance of using urban residual material flows in vertical hydroponic farming. It assessed replacing conventional growing media with paper, compost, and brewers’ spent grains, and conventional fertilizers with biogas digestate. The results indicate significant environmental performance benefits when conventional growing media are replaced, and substantial potential benefits, though less significant, when fertilizers from residual urban streams are used, suggesting potential for more circular hydroponic systems.