<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The manuscript explores the feasibility of recovering zinc and iron from waste galvanic sludge generated during galvanic plating processes. Galvanic sludge, characterized by elevated concentrations of heavy metals, represents a suitable candidate for hydrometallurgical recycling. The primary objective of the experimental and practical phases was to extract zinc and iron through the leaching of galvanic sludge. Leaching procedures were conducted using sulfuric acid at varying temperatures and time durations, augmented by the introduction of oxidizing agents such as hydrogen peroxide or ozone. Subsequent separation of the leach and filtrate was achieved through filtration. The leachate underwent additional processing involving the precipitation of iron and other metals, employing diverse agents. Following further filtration, electrolysis was employed to attain pure zinc on the cathode, utilizing an electrical voltage of approximately 3 V. Comprehensive chemical analyses were conducted on all intermediate products, including the leachate, leach liquor, filtrate, solid precipitate, and the separated metal on the cathode. The outcomes of these analyses are meticulously presented in tables and graphs.</p>
</abstract>

The manuscript explores the feasibility of recovering zinc and iron from waste galvanic sludge generated during galvanic plating processes. Galvanic sludge, characterized by elevated concentrations of heavy metals, represents a suitable candidate for hydrometallurgical recycling. The primary objective of the experimental and practical phases was to extract zinc and iron through the leaching of galvanic sludge. Leaching procedures were conducted using sulfuric acid at varying temperatures and time durations, augmented by the introduction of oxidizing agents such as hydrogen peroxide or ozone. Subsequent separation of the leach and filtrate was achieved through filtration. The leachate underwent additional processing involving the precipitation of iron and other metals, employing diverse agents. Following further filtration, electrolysis was employed to attain pure zinc on the cathode, utilizing an electrical voltage of approximately 3 V. Comprehensive chemical analyses were conducted on all intermediate products, including the leachate, leach liquor, filtrate, solid precipitate, and the separated metal on the cathode. The outcomes of these analyses are meticulously presented in tables and graphs.

Innovative Hydrometallurgy for Galvanic Sludge Sustainable Recovery

System Safety: Human - Technical Facility - Environment

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Innovative Hydrometallurgy for Galvanic Sludge Sustainable Recovery"}

The manuscript explores the feasibility of recovering zinc and iron from waste galvanic sludge generated during galvanic plating processes. Galvanic sludge,...

Innovative Hydrometallurgy for Galvanic Sludge Sustainable Recovery

Online veröffentlicht: 29. Dez. 2023

Seitenbereich: 46 - 56

Eingereicht: 03. Nov. 2023

Akzeptiert: 06. Dez. 2023

DOI: https://doi.org/10.2478/czoto-2023-0006

Schlüsselwörter
metals, galvanic sludge, leaching, zinc, iron, electrolysis

© 2023 Silvie Brožová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Innovative Hydrometallurgy for Galvanic Sludge Sustainable Recovery

Online veröffentlicht: 29. Dez. 2023

Seitenbereich: 46 - 56

Eingereicht: 03. Nov. 2023

Akzeptiert: 06. Dez. 2023

DOI: https://doi.org/10.2478/czoto-2023-0006

Schlüsselwörtermetals, galvanic sludge, leaching, zinc, iron, electrolysis

© 2023 Silvie Brožová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Schlüsselwörter
metals, galvanic sludge, leaching, zinc, iron, electrolysis