Microwave heating of waste electric arc furnace dust (EAFD) for the purpose its remediation has been studied extensively. However, these studies considered EAFD as a bulk material without addressing either relative response individual constituents or specific interactions with magnetic fields an electromagnetic wave. In this work, we present study contribution wave components to using separated...

electric arc furnace dust (eafd) of ferromanganese production units, in the form of slurry, contains tar, alkalies, manganese, zinc, iron, silica, calcium, aluminum and other elements. a hydrometallurgical route based on solvent extraction technique was investigated for selective separation of manganese from the dust. leaching of the eafd resulted in an aqueous feed containing 4 g/l of manganes...

Thermal co-treatment of Electric Arc Furnace Dust (EAFD) and polyvinyl chloride (PVC) may provide a viable route for reprocessing these hazardous materials within the circular economy. To develop optimise commercial treatment process, complex mechanistic pathway resulting from reaction two wastes must be understood. Franklinite (ZnFe2O4) is major zinc containing phase in EAFD to date, little wo...

This research studies the properties of mortars incorporating waste materials including red mud (RM), ground granulated blast furnace slag (GGBFS), and electric arc dust (EAFD). Ordinary Portland cement (OPC) was partially replaced with equal contents RM, GGBFS, EAFD at different ratios by weight (0, 5, 10, 15, 20, 30, 40, 50%). Slump, compressive strength, splitting tensile electrical resistiv...

Electric arc furnace dust (EAFD) of ferromanganese production units, in the form of slurry, contains tar, alkalies, manganese, zinc, iron, silica, calcium, aluminum and other elements. A hydrometallurgical route based on solvent extraction technique was investigated for selective separation of manganese from the dust. Leaching of the EAFD resulted in an aqueous feed containing 4 g/L of manganes...

The paper describes cementation as a suitable method applied in the refining of EAFD leachates order to obtain required purity ZnO for specific industrial application. For study conditions, leachate from alkaline leaching with (NH4)2CO3 was used. contained high amount zinc (8000–12,000 µg/mL) and low content impurities such iron, lead, copper, chromium manganese range 1–21 µg/mL. Cementation co...

Results about the vitrification of several hazardous iron-rich industrial wastes (from productions of Zn and Cu metals, as well as EAFD and MSWA) and the usage of obtained glasses for synthesise of sintered glass-ceramics are summarises. It is shown that the appropriated method of sinter-crystallization mainly depends on the crystallization trend of used glasses. When the parent composition is ...

Contexto: Los EAFD (Electric Arc Furnace Dust) son materiales con un elevado contenido metálico que no es aprovechado al desconocerse su composición y el enfoque técnico para tratarlos o reciclarlos de manera segura. Aunque coproducto rico en zinc, a menudo la recuperación este metal una tarea desafiante.
 Objetivo: Proponer método tratar los mediante extracción selectiva zinc por vía hidr...

Abstract The technical and environmental aspects of treating electric arc furnace dust (EAFD) using a novel process including alkaline roasting organic acid leaching were evaluated compared to the globally applied conventional Waelz process. global warming potentials roasting–organic (with co-product credits) processes 7.48 4.71 kg CO 2 -eq with 33% Zn as feed material. However, decreasing cont...