Abstract
A method based on column chromatography has been developed for determination of ion exchange (IE) constants for pairs of metal ions for different types of wood, pulp, and bark samples. Bark was found to have higher selectivity than wood and pulp for the metal ions studied. Of the 14 different metal ions studied, the toxic transition metal ions Pb, Cu, and Cd were most strongly bound to all the materials used in this work. The validity of the column method was tested by means of different mixtures of metal ions as the loading solution. The IE constants obtained by the column method showed a good agreement with those obtained by the batch method reported earlier by our group. The IE constants were also determined for synthetic cation exchanger (CE) based on weak and strong acid groups. The IE constants of most pairs of metal ions are highest for the weakly acidic CE followed by bark, wood, pulp, and strongly acidic CE.
Acknowledgments
This work is a part of the activities at Åbo Akademi Process Chemistry Centre within the Finnish Center of Excellence Program (2000–2011) by the Academy of Finland. Financial supports from TEKES (Finnish Funding Agency for Technology and Innovation) and the Research Institute of Åbo Akademi Foundation are also gratefully acknowledged.
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©2014 by De Gruyter
Articles in the same Issue
- Frontmatter
- Original Articles
- Influence of cellulose supramolecular structure on strength properties of chemical pulp
- Morphological, mechanical, and optical properties of cypress papers
- Determination of ion exchange constants for pairs of metal ions to lignocellulosic materials by column chromatography
- Combustion behavior of oak wood (Quercus mongolica L.) modified by 1,3-dimethylol-4,5-dihydroxyethyleneurea (DMDHEU)
- Synthesis and antifungal activity of camphoric acid-based acylhydrazone compounds
- Lignification of ray parenchyma cells in the xylem of Pinus densiflora. Part I: Microscopic investigation by POM, UV microscopy, and TOF-SIMS
- Lignification of ray parenchyma cells in the xylem of Pinus densiflora. Part II: Microchemical analysis by laser microdissection and thioacidolysis
- Distribution of lignin in vascular bundles of coconut wood (Cocos nucifera) by cellular UV-spectroscopy and relationship between lignification and tensile strength in single vascular bundles
- Compression properties of vascular boundles and parenchyma of rattan (Plectocomia assamica Griff)
- Properties of wood-plastic composites (WPCs) reinforced with extracted and delignified wood flour
- Anisotropic elastic properties of common ash (Fraxinus excelsior L.)
- Destructive and non-destructive evaluation of seven hardwoods and analysis of data correlation
- Experimental validation of green wood peeling assisted by IR heating – some considerations of the analytical system design
- The influence of felling season and log-soaking temperature on the wetting and phenol formaldehyde adhesive bonding characteristics of birch veneer
- Comparative evaluation of various lignin determination methods on hemicellulose-rich fractions of spruce and birch obtained by pressurized hot-water extraction (PHWE) and subsequent ultrafiltration (UF)
- Conversion between basic density and apparent density at any moisture content in Eucalyptus grandis
- Postpeak residual capacity of nailed connections of a shear wall
- Obituary
- Memorial on Horst H. Nimz (1930–2013)
Articles in the same Issue
- Frontmatter
- Original Articles
- Influence of cellulose supramolecular structure on strength properties of chemical pulp
- Morphological, mechanical, and optical properties of cypress papers
- Determination of ion exchange constants for pairs of metal ions to lignocellulosic materials by column chromatography
- Combustion behavior of oak wood (Quercus mongolica L.) modified by 1,3-dimethylol-4,5-dihydroxyethyleneurea (DMDHEU)
- Synthesis and antifungal activity of camphoric acid-based acylhydrazone compounds
- Lignification of ray parenchyma cells in the xylem of Pinus densiflora. Part I: Microscopic investigation by POM, UV microscopy, and TOF-SIMS
- Lignification of ray parenchyma cells in the xylem of Pinus densiflora. Part II: Microchemical analysis by laser microdissection and thioacidolysis
- Distribution of lignin in vascular bundles of coconut wood (Cocos nucifera) by cellular UV-spectroscopy and relationship between lignification and tensile strength in single vascular bundles
- Compression properties of vascular boundles and parenchyma of rattan (Plectocomia assamica Griff)
- Properties of wood-plastic composites (WPCs) reinforced with extracted and delignified wood flour
- Anisotropic elastic properties of common ash (Fraxinus excelsior L.)
- Destructive and non-destructive evaluation of seven hardwoods and analysis of data correlation
- Experimental validation of green wood peeling assisted by IR heating – some considerations of the analytical system design
- The influence of felling season and log-soaking temperature on the wetting and phenol formaldehyde adhesive bonding characteristics of birch veneer
- Comparative evaluation of various lignin determination methods on hemicellulose-rich fractions of spruce and birch obtained by pressurized hot-water extraction (PHWE) and subsequent ultrafiltration (UF)
- Conversion between basic density and apparent density at any moisture content in Eucalyptus grandis
- Postpeak residual capacity of nailed connections of a shear wall
- Obituary
- Memorial on Horst H. Nimz (1930–2013)