Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
DOI: https://doi.org/10.29363/nanoge.matsusspring.2025.457
Publication date: 16th December 2024
Water issues represents one of the biggest challenges of the 21st century. The United Nations has addressed Sustainable Development Goal (SDG) to answers the water crisis. The increase of water demand in the different sectors (agriculture, industry and household), and the water stress that is globally rising in the meantime, are responsible for this critical issue. To face it, the water reuse approach is more and more considered. However, before reusing wastewater there is the need to completely remove emerging pollutants (e.g., pharmaceuticals, pesticides, personal care products) since they are not eliminated by the bioprocesses typically applied in plants. Still, wastewater contains valuable chemicals (e.g., phosphate, magnesium) that could be recovered in the meantime. Electrochemical systems can tune the removal and recovery steps by playing on the applied potential/current, in contrast with chemical processes. They also offer the advantages of operating several unit operations (separation and conversion technologies) without the need for chemicals addition and within the same reactor design. Moreover, vector of energy could be electrogenerated (e.g., hydrogen (H2)). This presentation will focus on case studies implementing electro-precipitation, electro-sorption and electro-reduction/-oxidation for resource recovery in wastewater under microfluidic conditions.
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