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2013 | 11 | 9 | 1505-1517
Tytuł artykułu

Modelling and optimization of chromiumIII biosorption on soybean meal

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Abstract In this investigation a waste biological material, soybean meal, was applied as a biosorbent for heavy metal ions (CrIII). The diffusive Webber-Morris model and the pseudo-II-order model suitably described the kinetics of CrIII ions binding on soybean meal. The Langmuir-Freundlich equation was valid for the description of the isotherm. Inductively coupled plasma optical emission spectroscopy (ICP-OES), FTIR and scanning electron microscopy with an energy dispersive X-ray analytical system (SEM-EDX) were used in order to identify the mechanism of the metal ions binding. The analysis of the composition of the enriched soybean meal confirmed the contribution of ion exchange in the biosorption process. Three-variable-three-level Box-Behnken design was used to determine the optimal conditions for biosorption of CrIII on soybean meal. The optimal conditions for predicted maximum Cr3+ uptake (61.07 mg g−1) by soybean meal were estimated by Matlab and established as temperature of 38.04°C, initial metal concentration 500 mg L−1 and biosorbent dosage 1 g L−1. Graphical abstract [...]
Słowa kluczowe
Wydawca

Czasopismo
Rocznik
Tom
11
Numer
9
Strony
1505-1517
Opis fizyczny
Daty
wydano
2013-09-01
online
2013-06-29
Twórcy
  • Department of Chemistry, Wroclaw University of Technology, Wroclaw, 50-373, Poland
  • Institute of Inorganic Technology and Mineral Fertilizers, Wroclaw University of Technology, 50-372, Wroclaw, Poland
autor
  • Department of Chemistry, Wroclaw University of Technology, Wroclaw, 50-373, Poland
  • Laboratory of Electron Microscopy, Wroclaw University of Environmental and Life, Sciences, 50-631, Wroclaw, Poland
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-013-0274-8
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