caa a22 4500 60549780X CHVBK 20210128100543.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s00253-014-6103-y doi (NATIONALLICENCE)springer-10.1007/s00253-014-6103-y Guo Junyuan College of Resources and Environment, Chengdu University of Information Technology, 610225, Chengdu, Sichuan, China aut Characteristics and mechanisms of Cu(II) sorption from aqueous solution by using bioflocculant MBFR10543 [Elektronische Daten] [Junyuan Guo] This paper investigated the characteristics of Cu(II) sorption from aqueous solution by using bioflocculant MBFR10543 and discussed the mechanism during the sorption process. Results have demonstrated that the removal efficiency of Cu(II) reached 96.9% by adding MBFR10543 in two stages, separately, 1.5 × 10−2% (w/w) in the 1.0-min rapid mixing (180rpm) and 2.0 × 10−2% (w/w) after 2.0-min slow mixing (80rpm), with pH value fixed at 6.0. Cu(II) sorption process could be described by the pseudo-second-order kinetic model and the Langmuir isotherms model. The negative Gibbs free energy change indicated the spontaneous nature of the sorption. Fourier transform infrared spectra analysis indicated that functional groups, such as -OH, −COOH, C═O, and -NH2, were existed in MBFR10543 molecular chains, which had strong capacity for removing Cu(II). Furthermore, both charge neutralization and bridging being the main mechanisms involved in Cu(II) removal by MBFR10543. Springer-Verlag Berlin Heidelberg, 2014 Bioflocculant MBFR10543 nationallicence Cu(II) sorption nationallicence Kinetics nationallicence Isotherms nationallicence Thermodynamics nationallicence Flocculation mechanism nationallicence Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/1(2015-01-01), 229-240 0175-7598 99:1<229 2015 99 253 https://doi.org/10.1007/s00253-014-6103-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00253-014-6103-y text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Guo Junyuan College of Resources and Environment, Chengdu University of Information Technology, 610225, Chengdu, Sichuan, China aut NATIONALLICENCE 773 0- Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/1(2015-01-01), 229-240 0175-7598 99:1<229 2015 99 253