title: Bromate adsorption using Fe-pillared bentonite.
abstract: Bromate is an emerging hazardous substance in drinking water. In this study, the removal ofbromate by Fe-pillared bentonite was investigated using various experimental parameters: contact time, initial concentration (Co), temperature, initial pH and competing anions. The adsorption ofbromate followed the pseudo-second-order kinetic better than it followed other kinetic models, and the pseudo-second-order kinetic study showed that equilibrium could be achieved within 60 min. Equilibrium isotherms were analyzed by Freundlich, Langmuir, Redlich-Peterson and Toth isotherm models. The Toth and Redlich-Peterson models better represented the bromate adsorption. Results also indicated that, other than the competing anions and solution pH, temperature was a key parameter affecting adsorption. It was ultimately concluded that Fe-pillared bentonite was effective at removing bromate from water.
authors: School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou, China. hslongrcees@163.com
authors: Shilong
authors: S
authors: He
authors: Dandan
authors: D
authors: Zhang
authors: Li
authors: L
authors: Gu
authors: Shenghua
authors: S
authors: Zhang
authors: Xin
authors: X
authors: Yu
mesh_terms: D000327:Adsorption; D000838:Anions / Q000737:chemistry; D001546:Bentonite / Q000737:chemistry*; D001959:Bromates / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000737:chemistry*; D007700:Kinetics; D013696:Temperature; D013816:Thermodynamics; D013997:Time Factors
chemical_list: D000838:Anions; D001959:Bromates; D001546:Bentonite; D007501:Iron