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Our waterways are closely tied to our communities and well-being. The pollution of these waterways by heavy metals such as nickel and the inability of current centralised water treatment systems to mediate this problem places us at a crossroads. How do we rethink our water management systems to help mitigate the influx from ever-growing industry?
Our vision is Waterbound, a synthetic reef system developed to remediate urban floodwater. We use the bacteria, Pseudomonas fluorescens, trapped within a chitosan-based composite to create a community-friendly, decentralised water treatment system that focuses on removing heavy metals from the most polluted river in Europe: the Sarno.
Our material tests defined optimal properties based on the actions our material would have to perform and found a material composition that met our specifications.
We optimized the pH of our binder for both structure and bacterial growth
We added sodium alginate to our composition, which ensures better bacterial growth and adds to the bioremediation efficiency of our material.
To define the configuration of our designed geometry, we ran ANSYS flow rate tests on potential designs.
We used different percentages of integrated bacteria in our material gradient and our material composite to test the bioremediation efficiency of our design.
Locations of canneries and tanneries along the Sarno and its tributaries. This river is the most polluted in Europe.
Our chosen site is on the Sarno river as it intersects with the town of Scafati. This site allows us to redefine the flow of the river and activate the town centre.
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Preliminary extrusion tests explored the optimal speed, pressure, and extrusion when extruding our binder into a bed of silica.
We then developed a printing technique that allows us to extrude non-planar objects on a chunk-by-chunk basis.
We made a printable large-scale geometric design and used it for test printing.
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On a life-size scale, this is how we imagine the timeline of our material fabrication and design process.