Research on the Effect of Calcined Mg/Al Layered Double Hydroxides on Fluoride in Water Based on Adsorption Kinetics Model
Calcined Mg/Al layered double hydroxide is called CLDH for short. It is one of lamellar compound which has been wildly applied in water treatment. Its structure is relatively complex and has a strong adsorption capacity for the fluoride in water. The basic structure is the charge-layered structure with memory function. This paper introduces the theory of partial differential equation into CLDH dynamic adsorption model and establishes partial differential equation of adsorption stress of CLDH and analyses experimental data through Matlab algorithm. In order to validate the validity and reliability of dynamic model and Matlab algorithm, this paper roasts LDH through experiments and obtains CLDH fluoride-adsorption capacity curves with different PH values and different calcination temperature which provides a theoretical basis for the study of the ability of CLDH to remove fluoride ion in water.
Z.S. Liu, L.P. Xu, X.D. Liang, Z.H. Wang and H.M. Zhang
Z. X. Guo, "Research on the Effect of Calcined Mg/Al Layered Double Hydroxides on Fluoride in Water Based on Adsorption Kinetics Model", Advanced Materials Research, Vol. 1015, pp. 557-561, 2014