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Referencia 10426 |
| Título: |
Sistema de electrodeposición/precipitación cíclica para la eliminación de mezclas de metales pesados de disoluciones acuosas |
| Título original: |
Cyclic electrowinning/precipitation (CEP) system for the removal of heavy metal mixtures from aqueous solutions |
| Autor: |
Pengpeng Grimshaw, Joseph M. Calo, George Hradil |
| Resumen: |
The description and operation of a novel cyclic electrowinning/precipitation (CEP) system for the simultaneous removal of mixtures of heavy metals from aqueous solutions are presented. CEP combines the advantages of electrowinning in a spouted particulate electrode (SPE) with that of chemical precipitation and redissolution, to remove heavy metals at low concentrations as solid metal deposits on particulate cathode particles without exporting toxic metal precipitate sludges from the process. The overall result is very large volume reduction of the heavy metal contaminants as a solid metal deposit on particles that can either be safely discarded as such, or further processed to recover particular metals. The performance of this system is demonstrated with data on the removal of mixtures of copper, nickel, and cadmium from aqueous solutions.
Highlights
► Novel cyclic electrowinning/precipitation (CEP) system for water treatment. ► Electrowinning conducted in spouted particulate electrode (SPE). ► Simultaneous removal of heavy metals from aqueous solutions onto particles. ► No export of toxic metal precipitate sludges from the process. ► Demonstrated with data on removal of copper/nickel/cadmium mixtures from solution. |
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| Idioma: |
Inglés |
País: |
USA |
ISBN / ISSN: |
1385-8947 |
Año: |
2011 |
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| Tipo: |
Artículo |
| Área: |
Medioambiente > Tratamiento y reciclaje de aguas
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| Entidad: |
Brown University, School of Engineering, Providence, RI 02912 |
| Fuente: |
Chemical Engineering Journal |
| Localización en fuente: |
Volume 175, 15 November, Pages 103–109 |
| Descriptores: |
Electrodeposición cíclica, precipitación química, eliminación de metales pesados, Cyclic electrowinning; Chemical precipitation system; Spouted particulate electrode; Heavy metal co-electrodeposition; Environmental chemical engineering |
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