Arsenic removal from aqueous solutions by adsorption on red mud
作者： H. Soner Altundoğan , Sema Altundoğan , Fikret Tümen , Memnune Bildik
DOI: 10.1016/S0956-053X(00)00031-3
关键词:
摘要: Abstract Use of red mud, which is a waste product from bauxite processing, has been explored as an alternate adsorbent for arsenic in this study. The tests showed that the alkaline aqueous medium (pH 9.5) favored removal As(III), whereas pH range 1.1 to 3.2 was effective As(V) removal. process adsorption follows first-order rate expression and obeys Langmuir's model. It found As(III) exothermic, endothermic. would be advantageous use residue replacing polyvalent metal salts.
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