The PyraSALT Filtration System is an eco-friendly seawater purifier that enhances salt quality using dried Eichhornia crassipes biomass, crushed pumice stone, and rice husk ash. These materials provide biosorption, mechanical, and chemical filtration. Sealed between filter papers and reinforced with hot-melt adhesive, the system—when paired with vacuum filtration—removes impurities and microplastics, yielding high-purity salt for food and industrial use.