naa a22 4500 510819125 CHVBK 20180411083522.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11814-013-0051-6 doi (NATIONALLICENCE)springer-10.1007/s11814-013-0051-6 Study on optimal conditions and adsorption kinetics of copper from water by collodion membrane cross-linked poly- γ -glutamic acid [Elektronische Daten] [Xiangting Wu, Aiyin Wang, Xiaojie Zheng, Guoxing Li, Xinjiao Dong, Mingjiang Wu] Poly-γ-glutamic acid (γ-PGA) is a novel polyamino acid formed through microorganism fermentation and biosynthesis. In the present test, membrane (PGA-C) formation by γ-PGA and collodion was performed by using 0.1% glutaraldehyde as a cross-linking agent. A study was conducted on the PGA-C adsorption of Cu2+, specifically the related adsorption equilibrium and kinetics, desorption and regeneration. The results show that with an initial solution pH=5.5 and at 318 K, the static adsorption isotherm behavior of PGA-C is in compliance with the Langmuir model and is beneficial to the adsorption of the metal. Meanwhile, with the reaction lasting for 30min, adsorption equilibrium was reached with a maximum adsorption capacity up to 7.431 mg/g. The entire reaction process follows the pseudo-second-order kinetics. By using PGA-C, good regeneration results were obtained after adsorption-generation-adsorption cycling with an HCl solution (0.1 mol/L) as regeneration liquid. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 γ -PGA nationallicence Cu2+ nationallicence Collodion nationallicence Adsorption Kinetics nationallicence Optimal Conditions nationallicence Wu Xiangting College of Life and Environmental Science, Wenzhou University, 325035, Wenzhou, P. R. China aut Wang Aiyin College of Chemistry and Materials Engineering, Wenzhou University, 325035, Wenzhou, P. R. China aut Zheng Xiaojie Wenzhou Vocational College of Technology and Science, 325035, Wenzhou, P. R. China aut Li Guoxing College of Chemistry and Materials Engineering, Wenzhou University, 325035, Wenzhou, P. R. China aut Dong Xinjiao College of Life and Environmental Science, Wenzhou University, 325035, Wenzhou, P. R. China aut Wu Mingjiang College of Life and Environmental Science, Wenzhou University, 325035, Wenzhou, P. R. China aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/6(2013-06-01), 1295-1300 0256-1115 30:6<1295 2013 30 11814 https://doi.org/10.1007/s11814-013-0051-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-013-0051-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wu Xiangting College of Life and Environmental Science, Wenzhou University, 325035, Wenzhou, P. R. China aut NATIONALLICENCE 700 1- Wang Aiyin College of Chemistry and Materials Engineering, Wenzhou University, 325035, Wenzhou, P. R. China aut NATIONALLICENCE 700 1- Zheng Xiaojie Wenzhou Vocational College of Technology and Science, 325035, Wenzhou, P. R. China aut NATIONALLICENCE 700 1- Li Guoxing College of Chemistry and Materials Engineering, Wenzhou University, 325035, Wenzhou, P. R. China aut NATIONALLICENCE 700 1- Dong Xinjiao College of Life and Environmental Science, Wenzhou University, 325035, Wenzhou, P. R. China aut NATIONALLICENCE 700 1- Wu Mingjiang College of Life and Environmental Science, Wenzhou University, 325035, Wenzhou, P. R. China aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/6(2013-06-01), 1295-1300 0256-1115 30:6<1295 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer