Freeze-Drying as the Post-Processing Technique Improving Adsorptive Properties of Waste Fe/Mn Oxides Entrapped in Polymer Beads Towards As(III) and As(V)

Daniel Ociński , Irena Jacukowicz-Sobala , Elżbieta Kociołek-Balawejder

Abstract

The freeze-drying was tested as the post-processing technique allowing the improvement of the accessibility of active sites of the hybrid sorbent containing Fe/Mn oxides within polymer matrix. The influence of freeze-drying on the morphology of the sorbent and on its adsorptive properties towards arsenate and arsenite was studied in detail. The sorbent was characterized by a highly porous structure, large surface area (73.4 m2/g), and excellent adsorption properties towards both arsenate and arsenite. Its maximal adsorption capacity, determined in equilibrium studies, was 26.2 mg As(III)/g and 21.7 mg As(V)/g. Moreover, the physical form of the product allowed its application in a fixed-bed adsorption system.
Author Daniel Ociński (EaE / IChaFT / DChT)
Daniel Ociński,,
- Department of Chemical Technology
, Irena Jacukowicz-Sobala (EaE / IChaFT / DChT)
Irena Jacukowicz-Sobala,,
- Department of Chemical Technology
, Elżbieta Kociołek-Balawejder (EaE / IChaFT / DChT)
Elżbieta Kociołek-Balawejder,,
- Department of Chemical Technology
Journal seriesSeparation Science and Technology, ISSN 0149-6395, e-ISSN 1520-5754, (N/A 40 pkt)
Issue year2020
Vol55
No3
Pages487-500
Keywords in EnglishArsenic, Adsorption, Alginate, Water Treatment Residuals, Iron Oxides
ASJC Classification1500 General Chemical Engineering; 1506 Filtration and Separation; 1508 Process Chemistry and Technology; 1600 General Chemistry
DOIDOI:10.1080/01496395.2019.1567550
URL https://www.tandfonline.com/doi/full/10.1080/01496395.2019.1567550?scroll=top&needAccess=true
Languageen angielski
File
Ociński et al. 2020 SepSciTechnol.pdf 2,37 MB
Score (nominal)40
Score sourcejournalList
Publication indicators Scopus Citations = 2; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 0.577; WoS Impact Factor: 2018 = 1.354 (2) - 2018=1.382 (5)
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