Izvorni znanstveni članak
https://doi.org/10.15255/CABEQ.2017.1112
Combined Adsorption and Ion Exchange of D-Glyceric Acid Using a Strong Basic Resin: Equilibrium, Kinetics, and Thermodynamics
B. Wang
; a) College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou 362000, China; b) Fujian Province Key Laboratory for the Development of Bioactive Material from Marine Algae, Quanzhou 362000, China
Y. Pu
; Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Y. Xie
; College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China
Z. Cai
; College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou 362000, China
Q. Zheng
; College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou 362000, China
Y. Lu
; Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Sažetak
D-Glyceric acid (D-GA) is a glycerol derivative with various promising biological functions. This paper reports the adsorption of D-GA from aqueous solution using a strong basic resin. The effect of pH on the uptake of D-GA was studied, and several models were used to investigate the interactions of D-GA and the resin. A theoretical
model based on ion exchange and adsorption was developed to fit the isotherms under various pH or temperatures. Kinetic experiments under different initial D-GA concentrations were also performed to define the controlling mechanism of the overall adsorption process. The results showed that the uptake process of D-GA was controlled by the rate of D-GA diffusion through the polymeric matrix of the resin. This study provides valuable information and theoretical support for the scale-up and optimization of operating conditions for the recovery of D-GA.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Ključne riječi
D-glyceric acid; ion exchange; adsorption; film diffusion; resin 201×7
Hrčak ID:
192306
URI
Datum izdavanja:
10.1.2018.
Posjeta: 922 *