Flotation removal of As(V) onto goethite

Arsenic oxyanions, considered as priority pollutants, were removed from dilute aqueous solutions by sorption onto synthetic goethite, a typical inorganic adsorbent. Flotation was subsequently applied as an effective solid/liquid separation method. The combined process produced a foam concentrate, co...

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Bibliographic Details
Published in:Environmental pollution (1987) 1997, Vol.97 (3), p.239-245
Main Authors: Matis, K.A., Zouboulis, A.I., Malamas, F.B., Ramos Afonso, M.D., Hudson, M.J.
Format: Article
Language:English
Subjects:
Applied sciences
Arsenate
Exact sciences and technology
flotation
General purification processes
goethite
Pollution
sorption
Wastewaters
water treatment
Water treatment and pollution
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Summary:Arsenic oxyanions, considered as priority pollutants, were removed from dilute aqueous solutions by sorption onto synthetic goethite, a typical inorganic adsorbent. Flotation was subsequently applied as an effective solid/liquid separation method. The combined process produced a foam concentrate, containing the arsenic-loaded goethite particles. The dispersed-air flotation technique was used for the generation of fine gas bubbles. The main parameters affecting the process were studied and promising results, in terms of arsenic removal and of goethite separation, were obtained.
ISSN:0269-7491
1873-6424
DOI:10.1016/S0269-7491(97)00091-2