Simultaneous separation of Fe & Al and extraction of Fe from waste coal fly ash: Altering the charge sequence of ions by electrolysis

Simultaneous separation of Fe & Al and extraction of Fe from waste coal fly ash: Altering the charge sequence of ions by electrolysis

Proposed electrolysis process can alter the charge sequence of Al3+, Fe3+, and H2O to realize simultaneous separation of Fe3+ and Al3+, and extraction of Fe from coal fly ash leachate. [Display omitted] •A clean electrolysis process was designed for simultaneous Fe and Al separation and Fe extractio...

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Veröffentlicht in:Waste management (Elmsford) 2022-01, Vol.137, p.50-60
Hauptverfasser: Shi, Yuan, Jiang, Kai-xi, Zhang, Ting-an, Zhu, Xiao-feng
Format: Artikel
Sprache:eng
Schlagworte:
Coal
Coal Ash - analysis
Coal fly ash
Electrolysis
Ions
Iron
Iron extraction
Iron removal
Waste Water
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Zusammenfassung:Proposed electrolysis process can alter the charge sequence of Al3+, Fe3+, and H2O to realize simultaneous separation of Fe3+ and Al3+, and extraction of Fe from coal fly ash leachate. [Display omitted] •A clean electrolysis process was designed for simultaneous Fe and Al separation and Fe extraction.•The prepared Fe had a purity of 98.3 wt%.•The single-iron removal efficiency was 43.48%, and the aluminum extraction efficiency was
ISSN:0956-053X
1879-2456
DOI:10.1016/j.wasman.2021.10.019