Removal of Arsenic from Alkaline Process Water of Gold Cyanidation by Use of Functionalised Magnetic Adsorbents
Access Status
Open access
Authors
Feng, Chong
Date
2017Supervisor
Prof. Chris Aldrich
Type
Thesis
Award
PhD
Metadata
Show full item recordFaculty
Science and Engineering
School
Department of Mining Engineering and Metallurgical Engineering
Western Australian School of Mines
Collection
Abstract
In this study, three types of functionalised magnetic adsorbents, namely Fe3O4@SiO2@TiO2, γ-Fe2O3@ZrO2 and Fe3O4@CeO2/Ce(OH)4, were synthesised and used to extract arsenic species from alkaline gold cyanidation process waters. A series of analytical methods were employed to comprehensively characterise the synthesised adsorbents. In addition, systematic adsorption tests were carried out to determine their adsorption behaviour towards both As(III) and As(V) under alkaline conditions, as well as regeneration and reuse of the synthesised adsorbents.
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