title: Applying multivariate analysis as decision tool for evaluating sediment-specific remediation strategies.
abstract: Multivariate methodology was employed for finding optimum remediation conditions for electrodialytic remediation of harbour sediment from an Arctic location in Norway. The parts of the experimental domain in which both sediment- and technology-specific remediation objectives were met were identified. Objectives targeted were removal of the sediment-specific pollutants Cu and Pb, while minimising the effect on the sediment matrix by limiting the removal of naturally occurring metals while maintaining low energy consumption. Two different cell designs for electrochemical remediation were tested and final concentrations of Cu and Pb were below background levels in large parts of the experimental domain when operating at low current densities (<0.12 mA/cm(2)). However, energy consumption, remediation times and the effect on naturally occurring metals were different for the 2- and 3-compartment cells.
authors.affiliation: Department of Chemistry, University of Tromsø, The Arctic University of Norway, Postbox 6050 Langnes, 9037 Tromsø, Norway; Akvaplan-Niva AS, Framsenteret, Postbox 6606 Langnes, 9296 Tromsø, Norway.
authors.forename: Kristine B
authors.initials: KB
authors.lastname: Pedersen
authors.affiliation: Department of Chemistry, University of Tromsø, The Arctic University of Norway, Postbox 6050 Langnes, 9037 Tromsø, Norway. Electronic address: tore.lejon@uit.no.
authors.forename: Tore
authors.initials: T
authors.lastname: Lejon
authors.affiliation: Arctic Technology Centre, Department of Civil Engineering, Technical University of Denmark, Building 118, 2800 Lyngby, Denmark.
authors.forename: Pernille E
authors.initials: PE
authors.lastname: Jensen
authors.affiliation: Arctic Technology Centre, Department of Civil Engineering, Technical University of Denmark, Building 118, 2800 Lyngby, Denmark.
authors.forename: Lisbeth M
authors.initials: LM
authors.lastname: Ottosen
mesh_terms: D003300:Copper / Q000737:chemistry*; D055664:Electrochemical Techniques; D004785:Environmental Pollutants / Q000737:chemistry*; D052918:Environmental Restoration and Remediation / Q000379:methods*; D019015:Geologic Sediments / Q000737:chemistry*; D007854:Lead / Q000737:chemistry*; D015999:Multivariate Analysis; D009664:Norway
chemical_list: D004785:Environmental Pollutants; D007854:Lead; D003300:Copper
keywords: Electrodialytic remediation; Harbour sediments; Heavy metals; PLS