Carlos F. Palomar Ramírez, José A. Bazán Martínez, Manuel E. Palomar Pardavé, Mario A. Romero Romo, María Teresa Ramírez Silva
Some simple chemistry is used to demonstrate how Fe(II) ions, formed during iron corrosion in acid aqueous solution, can reduce toxic Cr(VI) species, forming soluble Cr(III) and Fe(III) ions. These ions, in turn, can be precipitated by neutralizing the solution. The procedure provides a treatment for industrial wastewaters commonly found in plating industries that allows its reuse or safe discharge compliant with environmental standards.
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