naa a22 4500 510751342 CHVBK 20180411083105.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1007/s11270-013-1507-3 doi (NATIONALLICENCE)springer-10.1007/s11270-013-1507-3 Effect of Organic Ligands on Copper(II) Removal from Metal Plating Wastewater by Orange Peel-based Biosorbents [Elektronische Daten] [Marta Izquierdo, Paula Marzal, Piet Lens] Copper(II) biosorption in the presence of complexing agents (CA) onto orange peel (OP) and chemically modified OP (OPH+, OPNa+, and OP(Na+)(H+)) was studied. The study of the effect of pH showed that OPH+ presented a copper(II) uptake similar to OP in the pH range 1.5-6.0, whereas OPNa+ and OP(Na+)(H+) showed the highest copper(II) uptake in the pH range 4-6. Copper(II) sorption isotherms were obtained with Cu(II)/CA mass ratios of 1:0 and 1:2 at pH 5. The Sips model fitted best the isotherms without CA, whereas the Freundlich and Brunauer-Emmett-Teller (BET) models fitted best the isotherms in the presence of ethylenediaminetetraacetic acid (EDTA) and citrate, respectively. The CA reduced the copper(II) uptake due to the presence of copper(II)-chelated species, though the interference of citrate was less important than that of EDTA. OPNa+ and OP(Na+)(H+) showed a higher copper(II) uptake capacity than OP, also in the presence of CA in solution. Copper(II) sorption mechanisms were studied using energy-dispersive X-ray and Fourier transform infrared spectroscopy and revealed ion exchange as one of the mechanisms. Biosorption reversibility and biosorbent reuse were evaluated in sorption/desorption cycles. Reversibility of copper(II) sorption was obtained (90% metal recovery), though an important reduction of the metal uptake was observed in the second cycle. Springer Science+Business Media Dordrecht, 2013 Biosorption nationallicence Citrate nationallicence Complexing agents nationallicence EDTA nationallicence Heavy metals nationallicence Orange peel nationallicence Izquierdo Marta Pollution Prevention and Control Core, UNESCO-IHE, Westvest 7, Delft, The Netherlands aut Marzal Paula Departament d'Enginyeria Química, Escola Tècnica Superior d'Enginyeria, Universitat de València, Avgda. Universitat s/n, 46100, Burjassot, Valencia, Spain aut Lens Piet Pollution Prevention and Control Core, UNESCO-IHE, Westvest 7, Delft, The Netherlands aut Water, Air, & Soil Pollution Springer Netherlands 224/4(2013-04-01), 1-15 0049-6979 224:4<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1507-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1507-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Izquierdo Marta Pollution Prevention and Control Core, UNESCO-IHE, Westvest 7, Delft, The Netherlands aut NATIONALLICENCE 700 1- Marzal Paula Departament d'Enginyeria Química, Escola Tècnica Superior d'Enginyeria, Universitat de València, Avgda. Universitat s/n, 46100, Burjassot, Valencia, Spain aut NATIONALLICENCE 700 1- Lens Piet Pollution Prevention and Control Core, UNESCO-IHE, Westvest 7, Delft, The Netherlands aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/4(2013-04-01), 1-15 0049-6979 224:4<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer