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Speciation of Cr and As Leachates from CCA Treated Wood by Differential Pulse Polarography
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J. A. Hingston
Published/Copyright:
June 1, 2005
Summary
Considerable research has been conducted to quantify the leaching rates of chromium and arsenic from timbers treated with the traditional wood preservative, CCA. However, much of this work has concentrated on measuring total metal concentrations. The environmental toxicity of these elements is significantly affected by their oxidation state. Therefore, quantification of individual metal species is considered important if the environmental effects of wood preservative leachates are to be determined. Laboratory leaching tests were conducted to allow speciation of both chromium and arsenic lost from CCA treated timbers exposed to artificial seawater for the first time. Differential pulse polarography was used to measure concentrations of As(III), Cr(VI) and Cr(III). Analysis indicated that less than 10% of the total As was leached as As(III), and that less than 1% of the total Cr was leached as Cr(VI).
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Published Online: 2005-06-01
Published in Print: 2003-10-30
Copyright © 2003 by Walter de Gruyter GmbH & Co. KG
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Articles in the same Issue
- Contents
- Subject Index
- Species Index
- Author Index
- Diurnal Differences in the Innermost Surface of the S2 Layer in Differentiating Tracheids of Cryptomeria japonica Corresponding to a Light-Dark Cycle
- The Isolation of Specific Bio-Control Agents for the Dry Rot Fungus Serpula Lacrymans
- TEM Examination of Surface Characteristics of Rubberwood (Hevea brasiliensis) HTMP Fibers
- Termiticidal Performance of Wood-Based Composites Treated with Silafluofen Using Supercritical Carbon Dioxide
- Use of Animal Proteins to Limit Leaching of Active Copper Ions Preservatives from Treated Wood
- Speciation of Cr and As Leachates from CCA Treated Wood by Differential Pulse Polarography
- Delignification Mechanism during High-Boiling Solvent Pulping Part 3. Structural Changes in Lignin Analyzed by 13C-NMR Spectroscopy
- Topochemical Investigations on Delignification of Picea abies [L.] Karst. during Alkaline Sulfite (ASA) and Bisulfite Pulping by Scanning UV Microspectrophotometry
- Delignification of Bamboo (Bambusa procera acher) Part 2. Characterisation of Kraft Black Liquors from Different Cooking Conditions
- The Effect of Magnesium Ions and Chelants on Peroxide Bleaching
- Moisture Content of Green Wood in High Temperature Water Vapor
- Wood Fracture Pattern during the Water Adsorption Process
- Use of the Partial Least Squares Method with Acoustic Vibration Spectra as a New Grading Technique for Structural Timber
- Mode I Fracture Behaviour on the Growth Ring Scale and Cellular Level of Spruce (Picea abies [L.] Karst.) and Beech (Fagus sylvatica L.) Loaded in the TR Crack Propagation System
- Microtensile Testing of Wood Fibers Combined with Video Extensometry for Efficient Strain Detection
- Mapping Radial,Tangential and Longitudinal Shrinkages and Relation to Tension Wood in Discs of the Tropical Tree Symphonia globulifera
- Assessment of Wood-Cement Compatibility: A New Approach
Articles in the same Issue
- Contents
- Subject Index
- Species Index
- Author Index
- Diurnal Differences in the Innermost Surface of the S2 Layer in Differentiating Tracheids of Cryptomeria japonica Corresponding to a Light-Dark Cycle
- The Isolation of Specific Bio-Control Agents for the Dry Rot Fungus Serpula Lacrymans
- TEM Examination of Surface Characteristics of Rubberwood (Hevea brasiliensis) HTMP Fibers
- Termiticidal Performance of Wood-Based Composites Treated with Silafluofen Using Supercritical Carbon Dioxide
- Use of Animal Proteins to Limit Leaching of Active Copper Ions Preservatives from Treated Wood
- Speciation of Cr and As Leachates from CCA Treated Wood by Differential Pulse Polarography
- Delignification Mechanism during High-Boiling Solvent Pulping Part 3. Structural Changes in Lignin Analyzed by 13C-NMR Spectroscopy
- Topochemical Investigations on Delignification of Picea abies [L.] Karst. during Alkaline Sulfite (ASA) and Bisulfite Pulping by Scanning UV Microspectrophotometry
- Delignification of Bamboo (Bambusa procera acher) Part 2. Characterisation of Kraft Black Liquors from Different Cooking Conditions
- The Effect of Magnesium Ions and Chelants on Peroxide Bleaching
- Moisture Content of Green Wood in High Temperature Water Vapor
- Wood Fracture Pattern during the Water Adsorption Process
- Use of the Partial Least Squares Method with Acoustic Vibration Spectra as a New Grading Technique for Structural Timber
- Mode I Fracture Behaviour on the Growth Ring Scale and Cellular Level of Spruce (Picea abies [L.] Karst.) and Beech (Fagus sylvatica L.) Loaded in the TR Crack Propagation System
- Microtensile Testing of Wood Fibers Combined with Video Extensometry for Efficient Strain Detection
- Mapping Radial,Tangential and Longitudinal Shrinkages and Relation to Tension Wood in Discs of the Tropical Tree Symphonia globulifera
- Assessment of Wood-Cement Compatibility: A New Approach
