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Recovery of palladium(II) by methanogenic granular sludge.

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.chemosphere.2015.09.035 Byline: Aurora M. Pat-Espadas, James A. Field, Lila Otero-Gonzalez, Elias Razo-Flores, Francisco J. Cervantes, Reyes Sierra-Alvarez Abstract: This is the first report that demonstrates... Full description

Journal Title: Chemosphere February 2016, Vol.144, pp.745-753
Main Author: Pat-Espadas, Aurora M
Other Authors: Field, James A , Otero-Gonzalez, Lila , Razo-Flores, Elías , Cervantes, Francisco J , Sierra-Alvarez, Reyes
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 1879-1298 ; DOI: 10.1016/j.chemosphere.2015.09.035
Link: http://search.proquest.com/docview/1752353582/?pq-origsite=primo
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title: Recovery of palladium(II) by methanogenic granular sludge.
format: Article
creator:
  • Pat-Espadas, Aurora M
  • Field, James A
  • Otero-Gonzalez, Lila
  • Razo-Flores, Elías
  • Cervantes, Francisco J
  • Sierra-Alvarez, Reyes
subjects:
  • Anaerobiosis–Drug Effects
  • Bioreactors–Microbiology
  • Ethanol–Pharmacology
  • Formates–Pharmacology
  • Hydrogen–Pharmacology
  • Methane–Biosynthesis
  • Oxidation-Reduction–Drug Effects
  • Palladium–Isolation & Purification
  • Recycling–Metabolism
  • Sewage–Microbiology
  • Formates
  • Sewage
  • Formic Acid
  • Ethanol
  • Palladium
  • Hydrogen
  • Methane
  • Anaerobic Granular Sludge
  • Biosorption
  • Chemical Reduction
  • Methanogenic Inhibition
  • Palladium Bioreduction
ispartof: Chemosphere, February 2016, Vol.144, pp.745-753
description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.chemosphere.2015.09.035 Byline: Aurora M. Pat-Espadas, James A. Field, Lila Otero-Gonzalez, Elias Razo-Flores, Francisco J. Cervantes, Reyes Sierra-Alvarez Abstract: This is the first report that demonstrates the ability of anaerobic methanogenic granular sludge to reduce Pd(II) to Pd(0). Different electron donors were evaluated for their effectiveness in promoting Pd reduction. Formate and H.sub.2 fostered both chemically and biologically mediated Pd reduction. Ethanol only promoted the reduction of Pd(II) under biotic conditions and the reduction was likely mediated by H.sub.2 released from ethanol fermentation. No reduction was observed in biotic or abiotic assays with all other substrates tested (acetate, lactate and pyruvate) although a large fraction of the total Pd was removed from the liquid medium likely due to biosorption. Pd(II) displayed severe inhibition towards acetoclastic and hydrogenotrophic methanogens, as indicated by 50% inhibiting concentrations as low as 0.96 and 2.7 mg/L, respectively. The results obtained indicate the potential of utilizing anaerobic granular sludge bioreactor technology as a practical and promising option for Pd(II) reduction and recovery offering advantages over pure cultures. Author Affiliation: (a) Department of Chemical and Environmental Engineering, University of Arizona, P.O. Box 210011, Tucson, AZ, 85721, USA (b) Division de Ciencias Ambientales, Instituto Potosino de Investigacion Cientifica y Tecnologica, Camino a la Presa San Jose 2055, Col. Lomas 4*. Seccion, C. P. 78216, San Luis Potosi, SLP, Mexico Article History: Received 27 February 2015; Revised 25 August 2015; Accepted 8 September 2015 Article Note: (miscellaneous) Handling editor: Yu Liu
language: eng
source:
identifier: E-ISSN: 1879-1298 ; DOI: 10.1016/j.chemosphere.2015.09.035
fulltext: no_fulltext
issn:
  • 18791298
  • 1879-1298
url: Link


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titleRecovery of palladium(II) by methanogenic granular sludge.
creatorPat-Espadas, Aurora M ; Field, James A ; Otero-Gonzalez, Lila ; Razo-Flores, Elías ; Cervantes, Francisco J ; Sierra-Alvarez, Reyes
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identifierE-ISSN: 1879-1298 ; DOI: 10.1016/j.chemosphere.2015.09.035
subjectAnaerobiosis–Drug Effects ; Bioreactors–Microbiology ; Ethanol–Pharmacology ; Formates–Pharmacology ; Hydrogen–Pharmacology ; Methane–Biosynthesis ; Oxidation-Reduction–Drug Effects ; Palladium–Isolation & Purification ; Recycling–Metabolism ; Sewage–Microbiology ; Formates ; Sewage ; Formic Acid ; Ethanol ; Palladium ; Hydrogen ; Methane ; Anaerobic Granular Sludge ; Biosorption ; Chemical Reduction ; Methanogenic Inhibition ; Palladium Bioreduction
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