Detail publikace

Removal of metal ions from multi-component mixture using natural lignite

DOSKOČIL, L. PEKAŘ, M.

Originální název

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

Removal of Pb2+, Cu2+, Cd2+, and Zn2+ ions from their multi-component aqueous mixture by sorption on natural lignite was investigated. Sorption kinetics, dependence of sorbed amount on pH, initial concentration of metal ions, and on temperature, effect of electrolytes (KNO3 and NaCl) were tested as well as desorption of sorbed metals into water. Cadmium was displaced at high metal concentrations. The maximum sorption capacities were 39 mg/g for Pb, 26 mg/g for Cu, 15 mg/g for Zn, and 5 mg/g for Cd. Experimental data were analyzed using Langmuir and Freundlich adsorption models, the relevance of thermodynamics descriptors for the multicomponent sorption is discussed. Desorption test showed tight bonding of all metals. Lignite is suitable and cheap sorption material for mixtures of metal ions, that is effective also at low metal concentrations.

Klíčová slova

Lignite; Environment; Pollution control; Heavy metals

Autoři

DOSKOČIL, L.; PEKAŘ, M.

Rok RIV

2012

Vydáno

1. 5. 2012

ISSN

0378-3820

Periodikum

FUEL PROCESSING TECHNOLOGY

Ročník

101

Číslo

Stát

Nizozemsko

Strany od

Strany do

Strany počet

BibTex

@article{BUT91761,
  author="Leoš {Doskočil} and Miloslav {Pekař}",
  title="Removal of metal ions from multi-component mixture using natural lignite",
  journal="FUEL PROCESSING TECHNOLOGY",
  year="2012",
  volume="101",
  number="1",
  pages="29--34",
  issn="0378-3820"
}