6533b836fe1ef96bd12a1372
RESEARCH PRODUCT
The application of electroanalytical methods to determine affinity series of metal cations for functional biosorbent groups
Małgorzata RajfurMałgorzata NabrdalikAndrzej KłosSławomir Wierzbasubject
021110 strategic defence & security studiesMolar concentrationChemistryGeneral Chemical Engineering0211 other engineering and technologiesHeavy metalsMetal cation affinity02 engineering and technology010501 environmental sciences01 natural sciencesBrewer's spent grainAnalytical ChemistryMetalHeavy metalsvisual_artBiosorptionElectrochemistryElectroanalytical methodvisual_art.visual_art_medium0105 earth and related environmental sciencesNuclear chemistrydescription
Abstract The affinity of the selected heavy metal cations: Mn 2 + , Ni 2 + , Cu 2 + , Zn 2 + , Cd 2 + , Pb 2 + and Na + , K + , Mg 2 + , Ca 2 + was determined for the functional groups located on the surface of leached barley middlings, so called Brewer's spent grain (BSG) – a by-product of the brewing industry. A simple method for determining the affinity series, with the use of a conductivity meter and a pH-meter, was described. It was demonstrated that the affinity of cations for the functional groups located on the surface of the BSG increases in the series: Na + + 2 + 2 + ≈ Zn 2 + 2 + ≈ Ca 2 + 2 + 2 + 2 + , and the series was determined by comparing concentrations expressed in gram equivalents, i.e. molar concentrations converted into the individual cation charge. The objective is to assess the possibility to use BSG as a biosorbent in the processes of treatment and post-treatment of waste waters from heavy metals.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-01-01 | Journal of Electroanalytical Chemistry |