Title :
Phosphate Removal by CTMAB Modified Bentonite
Author :
Yu, Haiqin ; Yan, Liangguo ; Wang, Yufang ; Fan, Yuhua ; Bi, Caifeng
Author_Institution :
Sch. of Chem. & Chem. Eng., Ocean Univ. of China, Qingdao, China
Abstract :
Adsorption is an efficient treatment process for the phosphate removal. In this study, cetyl trimethylammonium bromide modified bentonite (CTMAB-Bent) were prepared, characterized, and its adsorption properties for phosphate were evaluated in batch experiments. The results showed that the ability of phosphate adsorption by CTMAB-Bent was far more than that of Na-bentonite and raw bentonite. The process of phosphate adsorption was rapid and reached equilibrium within 60 min. The Freundlich model and the Langmuir model were both described the adsorption isotherm data well. These results indicated that the surfactant modified bentonites were potential adsorbents for the phosphate removal from water.
Keywords :
adsorption; minerals; separation; surfactants; water treatment; CTMAB-Bent; Freundlich model; Langmuir model; adsorbents; adsorption; cetyl trimethylammonium bromide modified bentonite; phosphate removal; surfactant; time 60 min; treatment process; water; Chemical analysis; Chemical engineering; Chemistry; Land surface temperature; Minerals; Ocean temperature; Slurries; Solids; Surface contamination; X-ray scattering;
Conference_Titel :
Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2901-1
Electronic_ISBN :
978-1-4244-2902-8
DOI :
10.1109/ICBBE.2009.5163182
