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Characterization of iron and steelmaking wet dust for arsenic remove in wastewaters

Published online by Cambridge University Press:  01 March 2012

V. Narvaez-García ,
A. Martínez-Luevanos ,
F. Carrillo-Pedroza ,
M. Soria-Aguilar ,
M. Guajardo-Castillo ,
M. Chirino  and
E. Castro
V. Narvaez-García
Affiliation:
Altos Hornos de Mexico, S.A.B, Prolongación Juarez s/n, col la Loma, Monclova, Coahuila, 25700, México
A. Martínez-Luevanos
Affiliation:
Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Blvd. V. Carranza y A. Cárdenas, Saltillo, Coah. Mexico
F. Carrillo-Pedroza
Affiliation:
Facultad de Metalurgia, Universidad Autónoma de Coahuila, Carr.57 Km 5, Monclova, Coah., México.
M. Soria-Aguilar
Affiliation:
Facultad de Metalurgia, Universidad Autónoma de Coahuila, Carr.57 Km 5, Monclova, Coah., México.
M. Guajardo-Castillo
Affiliation:
Altos Hornos de Mexico, S.A.B, Prolongación Juarez s/n, col la Loma, Monclova, Coahuila, 25700, México
M. Chirino
Affiliation:
Facultad de Metalurgia, Universidad Autónoma de Coahuila, Carr.57 Km 5, Monclova, Coah., México.
E. Castro
Affiliation:
CINVESTAV, Centro de Investigación Aplicada, Unidad Ramos Arizpe, Ramos Arizpe Coah.,E-mail: vnarvaezgarcia@gan.com.mx.
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Abstract

Dust originated from the iron and steelmaking containing undesirable compounds are not completely recycled because affects the process efficiency. These types of dust represents an economical lost as a consequence of values contents. However, dust have been characterized physically and chemically in order to study their potential environmental applications, as the removal of arsenic in wastewater. The results shows that dust have a superficial specific area between 16 and 20 m2/g, values considered high, typical of a material with adsorbent properties. Representative results of different tests adsorption of arsenic in the material described indicate that it is possible to reduce the arsenic levels in up to 95% from an initial concentration of 1 mg/L of total arsenic. The results indicate that the iron and steelmaking wet dust may represent a new option as material for the removal of heavy metals in water treatment.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1380 , 2012 , imrc2011-1380-s21-full022
Copyright
Copyright © Materials Research Society 2012

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References

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