The aim of this work is to design a fixed-bed column with vegetal biomass of Eichhornia crassipes and the process of recycling it for treatment via the adsorption of water loaded with chromium (VI). In the first stage. the relationship between the fixed-bed density and the microparticle density is calculated. giving a model for the design of the fixed bed. https://allfixelectricales.shop/product-category/oven-shelf-support-rack-screw/