Spray Coating of Adsorbent with Polymer Latex on Sand Particles for Fluoride Removal in Drinking Water | Zendy

Haixia Wu | Zendy; Ting-Jie Wang | Zendy; Xiaomin Dou | Zendy; Bei Zhao | Zendy; Lin Chen | Zendy; Yong Jin | Zendy

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Spray Coating of Adsorbent with Polymer Latex on Sand Particles for Fluoride Removal in Drinking Water

Author(s) -

Haixia Wu,

Ting-Jie Wang,

Xiaomin Dou,

Bei Zhao,

Lin Chen,

Yong Jin

Publication year - 2008

Publication title -

industrial and engineering chemistry research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.878

H-Index - 221

eISSN - 1520-5045

pISSN - 0888-5885

DOI - 10.1021/ie800278b

Subject(s) - adsorption , fluoride , coating , materials science , hydroxide , cerium , polymer , styrene , aluminium hydroxide , chemical engineering , copolymer , aluminium , nuclear chemistry , chemistry , composite material , inorganic chemistry , metallurgy , organic chemistry , engineering

An iron-aluminum-cerium trimetal hydroxide (FesAlsCe) adsorbent with an acrylic-styrene copolymer latex binder, which can cross-link and cure at room temperature, was coated on sand particles by spray coating. The adhesion of the coated layer increased with the latex/FesAlsCe ratio. A suitable latex/FesAlsCe ratio and thickness of coated adsorbent were determined to be 0.8 and 70 µm, respectively, giving good stability and adsorption capacity. The corresponding adsorption capacity of fluoride ions on the coated sand reached 3.46 mg/g at pH 7.0 and an initial fluoride concentration of 50 mg/L. Sand coated with Fe-Al-Ce is a potential adsorbent for use in a packed bed for fluoride removal from drinking water.

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