Title :
Layered Double Hydroxides for the Adsorption of Fluoride from Aqueous Solution
Author :
Yang, Gang ; Wang, Ren ; Ma, Wei ; Tian, Liyan ; Cheng, Zihong
Author_Institution :
Dept. of Chem., Dalian Univ. of Technol., Dalian, China
Abstract :
Calcined layered double hydroxides particles were used as adsorbent to remove fluoride ions. Batch adsorption studies were conducted under various equilibrating conditions. The results show that the HTlc calcined at 500°C had the highest capacity of removal of fluoride ions, after adsorption it regenerated to its original layered structure, it is called "memory effect". In field water studies, the F concentration decreased from 11.21 mg/L to 1.26 mg/L.
Keywords :
adsorption; calcination; diffusion; fluorine compounds; hydrogen compounds; pH; FO; HO; adsorbent; aqueous solution; calcined particles; equilibrium system; fluoride ion adsorption; layered double hydroxides; memory effect; temperature 500 degC; Chemical industry; Chemistry; Equations; Glass industry; Kinetic theory; Metals industry; Plastics; Temperature; Wastewater; Water pollution;
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.2009.5163012
