- Tytuł:
- Innovative Hydrometallurgy for Galvanic Sludge Sustainable Recovery
- Autorzy:
-
Brožová, Silvie
Drápala, Jaromír
Brož, Jiří
Macháčková, Adéla - Powiązania:
- https://bibliotekanauki.pl/articles/27323561.pdf
- Data publikacji:
- 2023
- Wydawca:
- Stowarzyszenie Menedżerów Jakości i Produkcji
- Tematy:
-
metals
galvanic sludge
leaching
zinc
iron
electrolysis
metale
osad galwaniczny
ługowanie
cynk
żelazo
elektroliza - Opis:
- 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.
- Źródło:
-
System Safety : Human - Technical Facility - Environment; 2023, 5, 1; 46-56
2657-5450 - Pojawia się w:
- System Safety : Human - Technical Facility - Environment
- Dostawca treści:
- Biblioteka Nauki