Open AccessBio-zeolite use for metal removal from copper-containing synthetic effluents
Author(s) -
Inga Zinicovscaia,
Nikita Yushin,
Dmitrii Grozdov,
Alexey Safonov,
Tatyana Ostovnaya,
Kirill Boldyrev,
D. V. Kryuchkov,
N. N. Popova
Publication year - 2021
Publication title -
journal of environmental health science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
ISSN - 2052-336X
DOI - 10.1007/s40201-021-00694-x
Subject(s) - sorption , zeolite , copper , adsorption , langmuir , freundlich equation , chemistry , metal ions in aqueous solution , metal , nuclear chemistry , inorganic chemistry , langmuir adsorption model , scanning electron microscope , materials science , catalysis , organic chemistry , composite material
The adsorption capacity of biologically modified zeolite with respect to copper-containing effluents (Cu(II)-Fe(III), Cu(II)-Fe(III)-Ni(II), Cu(II)-Fe(II)-Zn(II), and Cu(II)-Fe(II)-Ni(II)-Zn(II)) has been investigated in order to apply it for industrial effluents treatment. Obtained bio-zeolite was characterized using neutron activation analysis, confocal laser scanning microscopy, and scanning electron microscopy. The efficiency of metal ions removal was determined as a function of pH, copper concentration, time, and temperature. The metal sorption in analyzed systems showed to be pH-dependent. The equilibrium adsorption data were interpreted using Freundlich and Langmuir isotherms and the adsorption mechanism was investigated by kinetic studies. The sorption of Cu(II) and Zn(II) fitted well pseudo-first and pseudo-second-order models, while Ni(II) sorption was better described by the Elovich model. The thermodynamic parameters, ∆G°, ∆H°, and ∆S were evaluated to understand the nature of the sorption process. Obtained results show that bio-zeolite is of interest for heavy metal ions removal from industrial effluents.