Abstract Book
th
eosymposium
of Young Researchers Silesia 2017
Zabrze, 21-23.09.2017 Organizers: Student Government Faculty of Earth Science US Doctoral Scientific Circle FES US
The conference partners & patrons
Sponsor of this year’s edition Geosyposium Young Researchers „Silesia 2017"
th
eosymposium
Zabrze, 21-23.09.2017
of Young Researchers Silesia 2017
Editors: MSc Sylwia Skreczko MSc Barbara Bieta MSc Patrycja Michałowicz MSc Paweł Rutkiewicz MSc Daniel Gawior Robert Saternus
Project: MSc Sylwia Skreczko ISBN 978-83-948694-0-3
Print: Drukarnia Kolumb Chorzów www.drukarniakolumb.pl
th
eosymposium
Zabrze, 21-23.09.2017
of Young Researchers Silesia 2017
Ni (II) adsorp on on flota on waste from copper ore enrichment 1
1
2
Bartosz Mikoda , Agnieszka Gruszecka-Kosowska , Agnieszka Klimek 1
AGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protec on, Department of Environmental Protec on, al. Mickiewicza 30, 30-059 Krakow,
[email protected], 2 AGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protec on, Department of Mineralogy, Petrography and Geochemistry, al. Mickiewicza 30, 30-059 Krakow
The goal of this study was to evaluate flota on waste material from copper beneficia on as poten al adsorbent of Ni(II) ions from model aqueous solu ons. A wide range of ini al concentra ons (1-2500 mg/dm3), contact me (10-300 min) and pH values (2-12) was applied to assess the adsorp on affinity towards Ni(II). Langmuir, Freundlich, and Dubinin-Radushkevich (D-R) models were applied as isotherm models. Pseudo-first-order and pseudo-second-order equa ons were used to evaluate the kine cs of the process. The concentra ons of Ni in supernatants were determined using atomic absorp on spectroscopy (AAS). The results of the sorp on experiment revealed that the sorp on effec veness was me-dependent and reached a maximum a er 240 min contact me. The process was also strongly dependent on pH value, increasing rapidly when pH>8. This fact can be assigned to precipita on phenomenon, as hydroxide precipita on pH value for Ni(II) is 8.0. Sorp on isotherm was fi ng Freundlich model (R2=0.98), which suggested that the process could be infinite. Kine cs of Ni(II) adsorp on was be er described 2 by pseudo-second-order model (R =0.96). Free energy (E), calculated from D-R formula was equal to 0.084 kJ/mol, which implicated that the adsorp on could be of physical nature. The maximum sorp on capacity was 2.05 mg/g, which was comparable to other low-cost mineral adsorbents. The results of the study implied that the flota on waste from copper ore beneficia on could be considered as poten al Ni(II) adsorbent from model aqueous solu ons and the pilot industrial-scale adsorp on experiments on actual wastewaters are jus fied.
Acknowledgments This research has been funded by AGH University of Science and Technology Statutory Research [Project No. 11.11.140.199] Literature Ayres D.M., Davis A.P., Gietka P.M., (1994): Removing Heavy Metals from Wastewater. Engineering Research Center Report, University of Maryland. Mohammadi M., Ghaemi A., Torab-Mostaedi M., Asadollahzadeh M., Hemma A., (2015): Adsorp on of cadmium (II) and nickel (II) on dolomite powder. Desalina on and Water Treatment, vol. 53(1); p. 149–157
29
