Taking Advantage of a Corrosion Problem To Solve a Pollution Problem

• Carlos F. Palomar-Ramírez ^[2] ; José A. Bazán-Martínez ^[2] ; Manuel E. Palomar-Pardavé ^[1] ; Mario A. Romero-Romo ^[1] ; María Teresa Ramírez-Silva ^[1]
  1. [1] Universidad Autónoma Metropolitana

     Universidad Autónoma Metropolitana

     México

     
  2. [2] Colegio Moderno Tepeyac, Mexico
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 88, Nº 8, 2011, págs. 1109-1111
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • 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.