Revolutionizing Vertical Greenwalls: Utilizing Agricultural Waste Hydrogel and Symbiotic Soil Pellets for Water Efficiency and Nutrient Management with Greywater Irrigation

This project presents an innovative solution to tackle the urgent issues of climate change and urbanization through the implementation of "enhanced vertical greenwalls." The objective is to enhance water conservation, nutrient management, and overall sustainability in vertical greenwalls by repurposing local agricultural waste and reusing greywater. This innovation consists of two key elements: agricultural waste hydrogel-biochar composites and prebiotic-enriched soil pellets, resulting in the following benefits: (i) efficient retention of water and nutrients from greywater and (ii) the nurturing of beneficial soil microorganisms while optimizing nutrient cycling through symbiotic soil pellets. We plan to demonstrate the potential of this greenwall at the south campus of Qatar Foundation's Education City. This project has the potential to make a substantial impact by mitigating the effects of climate change through reduced water consumption, decreased nutrient runoff, and the promotion of urban biodiversity via sustainable green infrastructure. Ultimately, this proposal addresses the growing demand for climate change solutions, harnessing the power of science and environmental stewardship to strengthen urban ecosystems in the face of global climate challenges

Hamad Bin Khalifa University (HBKU)