In this work the shrinking core model was used for the mathematical modelling of Cu(II)/Fe(0)-induced chemical denitrification in aqueous system. The nano-zero valent iron particles have already been demonstrated their efficiency in the nitrate removal process. and various authors have investigated the influence of several parameters. such as pH and Fe(0)/NO3- molar ratio. https://herbsdailyes.shop/product-category/pill-crushers-and-cutters/