Removal of hexavalent and total chromium from aqueous solutions by Schinus molle Bark

Alma Rosa Netzahuatl-Muñoz; Erick Aranda-García; María Del Carmen Cristiani-Urbina; Blanca Estela Barragán-Huerta; Thelma Lilia Villegas-Garrido; Eliseo Cristiani-Urbina

Removal of hexavalent and total chromium from aqueous solutions by Schinus molle Bark

Alma Rosa Netzahuatl-Muñoz, Erick Aranda-García, María Del Carmen Cristiani-Urbina, Blanca Estela Barragán-Huerta, Thelma Lilia Villegas-Garrido, Eliseo Cristiani-Urbina

Escuela Nacional de Ciencias Biológicas (ENCB)

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

14 Citas (Scopus)

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The main purpose of this work was to evaluate the potential of Schinus molle bark to remove hexavalent chromium [Cr(VI)] and total chromium from aqueous solutions. Results showed that Schinus molle bark removed Cr(VI) by two different mechanisms: chromium biosorption and bioreduction of Cr(VI) to Cr(III). The capacity for removing Cr(VI) and total chromium gradually increased as the contact time proceeded, reaching values of 97.56 and 73.18 mg g ^-1 respectively, after 120 h. The opposite behavior was observed concerning the volumetric rates of Cr(VI) and total chromium removal. The pseudo-second order model adequately described the kinetic process of chromium biosorption by Schinus molle bark, which suggests that this process chiefly occurs as a result of chemisorption.

Idioma original	Inglés
Páginas (desde-hasta)	2911-2918
Número de páginas	8
Publicación	Fresenius Environmental Bulletin
Volumen	19
N.º	12
Estado	Publicada - 2010

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title = "Removal of hexavalent and total chromium from aqueous solutions by Schinus molle Bark",

abstract = "The main purpose of this work was to evaluate the potential of Schinus molle bark to remove hexavalent chromium [Cr(VI)] and total chromium from aqueous solutions. Results showed that Schinus molle bark removed Cr(VI) by two different mechanisms: chromium biosorption and bioreduction of Cr(VI) to Cr(III). The capacity for removing Cr(VI) and total chromium gradually increased as the contact time proceeded, reaching values of 97.56 and 73.18 mg g -1 respectively, after 120 h. The opposite behavior was observed concerning the volumetric rates of Cr(VI) and total chromium removal. The pseudo-second order model adequately described the kinetic process of chromium biosorption by Schinus molle bark, which suggests that this process chiefly occurs as a result of chemisorption.",

keywords = "Bioreduction, Biosorption, Hexavalent chromium [Cr(VI)], Schinus molle bark, Total chromium",

author = "Netzahuatl-Mu{\~n}oz, {Alma Rosa} and Erick Aranda-Garc{\'i}a and Cristiani-Urbina, {Mar{\'i}a Del Carmen} and Barrag{\'a}n-Huerta, {Blanca Estela} and Villegas-Garrido, {Thelma Lilia} and Eliseo Cristiani-Urbina",

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TY - JOUR

T1 - Removal of hexavalent and total chromium from aqueous solutions by Schinus molle Bark

AU - Netzahuatl-Muñoz, Alma Rosa

AU - Aranda-García, Erick

AU - Cristiani-Urbina, María Del Carmen

AU - Barragán-Huerta, Blanca Estela

AU - Villegas-Garrido, Thelma Lilia

AU - Cristiani-Urbina, Eliseo

PY - 2010

Y1 - 2010

N2 - The main purpose of this work was to evaluate the potential of Schinus molle bark to remove hexavalent chromium [Cr(VI)] and total chromium from aqueous solutions. Results showed that Schinus molle bark removed Cr(VI) by two different mechanisms: chromium biosorption and bioreduction of Cr(VI) to Cr(III). The capacity for removing Cr(VI) and total chromium gradually increased as the contact time proceeded, reaching values of 97.56 and 73.18 mg g -1 respectively, after 120 h. The opposite behavior was observed concerning the volumetric rates of Cr(VI) and total chromium removal. The pseudo-second order model adequately described the kinetic process of chromium biosorption by Schinus molle bark, which suggests that this process chiefly occurs as a result of chemisorption.

AB - The main purpose of this work was to evaluate the potential of Schinus molle bark to remove hexavalent chromium [Cr(VI)] and total chromium from aqueous solutions. Results showed that Schinus molle bark removed Cr(VI) by two different mechanisms: chromium biosorption and bioreduction of Cr(VI) to Cr(III). The capacity for removing Cr(VI) and total chromium gradually increased as the contact time proceeded, reaching values of 97.56 and 73.18 mg g -1 respectively, after 120 h. The opposite behavior was observed concerning the volumetric rates of Cr(VI) and total chromium removal. The pseudo-second order model adequately described the kinetic process of chromium biosorption by Schinus molle bark, which suggests that this process chiefly occurs as a result of chemisorption.

KW - Bioreduction

KW - Biosorption

KW - Hexavalent chromium [Cr(VI)]

KW - Schinus molle bark

KW - Total chromium

UR - http://www.scopus.com/inward/record.url?scp=78650340794&partnerID=8YFLogxK

M3 - Artículo

SN - 1018-4619

VL - 19

SP - 2911

EP - 2918

JO - Fresenius Environmental Bulletin

JF - Fresenius Environmental Bulletin

IS - 12

ER -

Removal of hexavalent and total chromium from aqueous solutions by Schinus molle Bark

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