VertECO is a vertical constructed wetland integrating horizontal and vertical flow for greywater treatment in hotel settings. The system achieves 90% or higher pollutant removal via plant–microbe interactions, producing effluent meeting regulatory quality standards suitable for reuse (e.g., irrigation, toilet flushing). Water savings of 40%–50% can be achieved. Life Cycle Assessment (LCA) indicates a reduced environmental impact compared to conventional systems.
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