E3S Web Conf.
Volume 168, 2020II International Conference Essays of Mining Science and Practice
|Number of page(s)||8|
|Published online||06 May 2020|
Adsorption purification of waste water from chromium by ferrite manganese
Ukrainian State University of Chemical Technology, 49005, Dnipro, Haharin Ave. 8, Ukraine
2 Dnipro State Agrarian And Economic University, 49600, Dnipro, Serhii Efremov Str., 25, Ukraine
3 Dnipro University of Technology, 49005, Dnipro, Yavornytskoho Ave., 19, Ukraine
* Corresponding author: email@example.com
Plasma method is used to synthesize manganese ferrite. The basic properties of ferrite are determined by IR spectroscopy, UV spectroscopy, X-ray phase analysis, vibration magnetometry. The paper shows that the use of magnetically controlled sorbent allows to purify waste waters from chromium (III). The process of adsorption of chromium cations (III) is investigated. The kinetics of the process is studied. To describe the equilibrium isotherms, the experimental data are analysed by the models of Langmuir, Freundlich isotherms. Pseudo-first order, pseudo-second-order, and Weber-Morris are used to elucidate the kinetic parameters and mechanism of the adsorption process. It has been established that the removal of Cr (III) cations is described by the pseudo-second order of the Langmuir reaction and mechanism.
© The Authors, published by EDP Sciences, 2020
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