Sono-electrochemical recovery of metal ions from their aqueous solutions

Bingfeng Dong, Asher Fishgold, Paul Lee, Keith A Runge, Pierre A Deymier, Manish K Keswani

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Metal recovery from aqueous waste streams is an important goal for recycling, agriculture and mining industries. The development of more effective methods of recovery have been of increasing interest. The most common methods for metal recovery include precipitation, electrochemical, ion exchange, flocculation/coagulation and filtration. In the current work, a sono-electrochemical technique employing sound field at megasonic frequency (500 kHz or 1 MHz) in conjunction with electrochemistry is evaluated for enhanced recovery of selected metal ions (palladium, lead and gallium) with different redox potentials from their aqueous solutions. The surface morphology and elemental composition of the metal deposits were characterized using scanning electron microscopy, energy dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy. The percent recovery was found to depend on the type of metal ion and the megasonic frequency used. Palladium was recovered in its metal form, while lead and gallium were oxidized during or after the recovery process.

Original languageEnglish (US)
Pages (from-to)379-387
Number of pages9
JournalJournal of Hazardous Materials
Volume318
DOIs
StatePublished - Nov 15 2016

Fingerprint

Metal recovery
Metal ions
Gallium
aqueous solution
Metals
Palladium
Ions
Recovery
ion
metal
Lead
Enhanced recovery
gallium
Mineral industry
palladium
Acoustic fields
Flocculation
Electrochemistry
Coagulation
Agriculture

Keywords

  • Electrochemistry
  • Megasonic
  • Metal recovery
  • Sonochemistry

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Sono-electrochemical recovery of metal ions from their aqueous solutions. / Dong, Bingfeng; Fishgold, Asher; Lee, Paul; Runge, Keith A; Deymier, Pierre A; Keswani, Manish K.

In: Journal of Hazardous Materials, Vol. 318, 15.11.2016, p. 379-387.

Research output: Contribution to journalArticle

@article{7f76fb069b424705954e7da8f10c2cfc,
title = "Sono-electrochemical recovery of metal ions from their aqueous solutions",
abstract = "Metal recovery from aqueous waste streams is an important goal for recycling, agriculture and mining industries. The development of more effective methods of recovery have been of increasing interest. The most common methods for metal recovery include precipitation, electrochemical, ion exchange, flocculation/coagulation and filtration. In the current work, a sono-electrochemical technique employing sound field at megasonic frequency (500 kHz or 1 MHz) in conjunction with electrochemistry is evaluated for enhanced recovery of selected metal ions (palladium, lead and gallium) with different redox potentials from their aqueous solutions. The surface morphology and elemental composition of the metal deposits were characterized using scanning electron microscopy, energy dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy. The percent recovery was found to depend on the type of metal ion and the megasonic frequency used. Palladium was recovered in its metal form, while lead and gallium were oxidized during or after the recovery process.",
keywords = "Electrochemistry, Megasonic, Metal recovery, Sonochemistry",
author = "Bingfeng Dong and Asher Fishgold and Paul Lee and Runge, {Keith A} and Deymier, {Pierre A} and Keswani, {Manish K}",
year = "2016",
month = "11",
day = "15",
doi = "10.1016/j.jhazmat.2016.07.007",
language = "English (US)",
volume = "318",
pages = "379--387",
journal = "Journal of Hazardous Materials",
issn = "0304-3894",
publisher = "Elsevier",

}

TY - JOUR

T1 - Sono-electrochemical recovery of metal ions from their aqueous solutions

AU - Dong, Bingfeng

AU - Fishgold, Asher

AU - Lee, Paul

AU - Runge, Keith A

AU - Deymier, Pierre A

AU - Keswani, Manish K

PY - 2016/11/15

Y1 - 2016/11/15

N2 - Metal recovery from aqueous waste streams is an important goal for recycling, agriculture and mining industries. The development of more effective methods of recovery have been of increasing interest. The most common methods for metal recovery include precipitation, electrochemical, ion exchange, flocculation/coagulation and filtration. In the current work, a sono-electrochemical technique employing sound field at megasonic frequency (500 kHz or 1 MHz) in conjunction with electrochemistry is evaluated for enhanced recovery of selected metal ions (palladium, lead and gallium) with different redox potentials from their aqueous solutions. The surface morphology and elemental composition of the metal deposits were characterized using scanning electron microscopy, energy dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy. The percent recovery was found to depend on the type of metal ion and the megasonic frequency used. Palladium was recovered in its metal form, while lead and gallium were oxidized during or after the recovery process.

AB - Metal recovery from aqueous waste streams is an important goal for recycling, agriculture and mining industries. The development of more effective methods of recovery have been of increasing interest. The most common methods for metal recovery include precipitation, electrochemical, ion exchange, flocculation/coagulation and filtration. In the current work, a sono-electrochemical technique employing sound field at megasonic frequency (500 kHz or 1 MHz) in conjunction with electrochemistry is evaluated for enhanced recovery of selected metal ions (palladium, lead and gallium) with different redox potentials from their aqueous solutions. The surface morphology and elemental composition of the metal deposits were characterized using scanning electron microscopy, energy dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy. The percent recovery was found to depend on the type of metal ion and the megasonic frequency used. Palladium was recovered in its metal form, while lead and gallium were oxidized during or after the recovery process.

KW - Electrochemistry

KW - Megasonic

KW - Metal recovery

KW - Sonochemistry

UR - http://www.scopus.com/inward/record.url?scp=84989834154&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84989834154&partnerID=8YFLogxK

U2 - 10.1016/j.jhazmat.2016.07.007

DO - 10.1016/j.jhazmat.2016.07.007

M3 - Article

AN - SCOPUS:84989834154

VL - 318

SP - 379

EP - 387

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

SN - 0304-3894

ER -