Arsenic removal from aqueous solutions by sorption onto zirconium- and titanium-modified sorbents | Zendy

Ivan Andjelkovic | Zendy; Dragan Manojlović | Zendy; Dragana Djordjevic | Zendy; Biljana Dojčinović | Zendy; Goran Roglić | Zendy; Lj. M. Ignjatović | Zendy

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Arsenic removal from aqueous solutions by sorption onto zirconium- and titanium-modified sorbents

Author(s) -

Ivan Andjelkovic,

Dragan Manojlović,

Dragana Djordjevic,

Biljana Dojčinović,

Goran Roglić,

Lj. M. Ignjatović

Publication year - 2011

Publication title -

journal of the serbian chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.227

H-Index - 45

eISSN - 1820-7421

pISSN - 0352-5139

DOI - 10.2298/jsc101014125a

Subject(s) - sorbent , sorption , arsenic , arsenate , arsenite , zirconium , chemistry , aqueous solution , adsorption , titanium , nuclear chemistry , inorganic chemistry , organic chemistry

Arsenic reduction in drinking water can include treatment by adsorption, switching to alternative water sources, or blending with water that has a lower arsenic concentration. Commercial sorbents MTM, Greensand and BIRM (Clack Corporation) were modified with zirconium and titanium after activation. The modifications were performed with titanium tetrachloride and zirconium tetrachloride. The modified sorbents were dried at different temperatures. The sorption of arsenate and arsenite dissolved in drinking water (200μg L-1) onto the sorbents were tested using a batch procedure. After removal of the sorbent, the concentration of arsenic was determined by HG-AAS. Zirconium-modified BIRM showed the best performance for the removal of both arsenite and arsenate. Modification of the greensand did not affect arsenic sorption ability. Zirconium-modified BIRM diminished the concentration of total As to below 5 μg L-1

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