The influence of sediment properties and experimental variables on the efficiency of electrodialytic removal of metals from sediment
Accepted manuscript version. Published version available at https://doi.org/10.1016/j.jece.2017.10.031 . Accepted manuscript version, licensed CC BY-NC-ND 4.0. Chemometrics was used to determine the influence of sediment properties and experimental settings for the electrodialytic removal (EDR) of C...
Published in: | Journal of Environmental Chemical Engineering |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2017
|
Subjects: | |
Online Access: | https://hdl.handle.net/10037/13615 https://doi.org/10.1016/j.jece.2017.10.031 |
id |
ftunivtroemsoe:oai:munin.uit.no:10037/13615 |
---|---|
record_format |
openpolar |
spelling |
ftunivtroemsoe:oai:munin.uit.no:10037/13615 2023-05-15T16:29:44+02:00 The influence of sediment properties and experimental variables on the efficiency of electrodialytic removal of metals from sediment Pedersen, Kristine Bondo Lejon, Tore Jensen, Pernille E. Ottosen, Lisbeth M. 2017-10-16 https://hdl.handle.net/10037/13615 https://doi.org/10.1016/j.jece.2017.10.031 eng eng Elsevier Journal of Environmental Chemical Engineering info:eu-repo/grantAgreement/RCN/NORDSATS/195160/Norway/Northern Environmental Waste Management// Pedersen, K.B., Lejon, T.S., Jensen, P.E. & Ottosen, L.M. (2017). The influence of sediment properties and experimental variables on the efficiency of electrodialytic removal of metals from sediment. Journal of Environmental Chemical Engineering, 5(6), 5312-5321. https://doi.org/10.1016/j.jece.2017.10.031 FRIDAID 1528677 doi:10.1016/j.jece.2017.10.031 2213-3437 https://hdl.handle.net/10037/13615 openAccess VDP::Matematikk og Naturvitenskap: 400::Kjemi: 440 VDP::Mathematics and natural science: 400::Chemistry: 440 Chemometrics Pls EDREKR Heavy metals Sediments Journal article Tidsskriftartikkel Peer reviewed 2017 ftunivtroemsoe https://doi.org/10.1016/j.jece.2017.10.031 2021-06-25T17:55:36Z Accepted manuscript version. Published version available at https://doi.org/10.1016/j.jece.2017.10.031 . Accepted manuscript version, licensed CC BY-NC-ND 4.0. Chemometrics was used to determine the influence of sediment properties and experimental settings for the electrodialytic removal (EDR) of Cu, Pb and Zn from six harbour sediments from Greenland and Norway. A Projection onto latent structures (PLS) model revealed that the most important sediment properties for achieving acidification (lag-phase, pH > 4), necessary for desorbing and mobilising metals in the polluted sediments, were buffer capacity and grain size distribution. Higher stirring rate reduced the acidification time, stressing the importance of thorough mixing of the sediment suspension to achieve a fast and uniform acidification. PLS models were calculated to determine the influence of sediment properties on the removal of metals during EDR, which was observed to vary depending on the targeted metal and the stage of the remediation. In general, buffer capacity, grain size distribution, element composition and metal partitioning were important for remediation efficiency and are important parameters for determining optimal experimental settings. In the fast removal phase (final pH 2–4), organic matter as well as stirring rate had increasing importance indicating oxidation and release of metals at this stage. Understanding the influence of sediment properties is important for determining experimental settings in accordance with the phase of EDR. Article in Journal/Newspaper Greenland University of Tromsø: Munin Open Research Archive Greenland Norway Journal of Environmental Chemical Engineering 5 6 5312 5321 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Kjemi: 440 VDP::Mathematics and natural science: 400::Chemistry: 440 Chemometrics Pls EDREKR Heavy metals Sediments |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Kjemi: 440 VDP::Mathematics and natural science: 400::Chemistry: 440 Chemometrics Pls EDREKR Heavy metals Sediments Pedersen, Kristine Bondo Lejon, Tore Jensen, Pernille E. Ottosen, Lisbeth M. The influence of sediment properties and experimental variables on the efficiency of electrodialytic removal of metals from sediment |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Kjemi: 440 VDP::Mathematics and natural science: 400::Chemistry: 440 Chemometrics Pls EDREKR Heavy metals Sediments |
description |
Accepted manuscript version. Published version available at https://doi.org/10.1016/j.jece.2017.10.031 . Accepted manuscript version, licensed CC BY-NC-ND 4.0. Chemometrics was used to determine the influence of sediment properties and experimental settings for the electrodialytic removal (EDR) of Cu, Pb and Zn from six harbour sediments from Greenland and Norway. A Projection onto latent structures (PLS) model revealed that the most important sediment properties for achieving acidification (lag-phase, pH > 4), necessary for desorbing and mobilising metals in the polluted sediments, were buffer capacity and grain size distribution. Higher stirring rate reduced the acidification time, stressing the importance of thorough mixing of the sediment suspension to achieve a fast and uniform acidification. PLS models were calculated to determine the influence of sediment properties on the removal of metals during EDR, which was observed to vary depending on the targeted metal and the stage of the remediation. In general, buffer capacity, grain size distribution, element composition and metal partitioning were important for remediation efficiency and are important parameters for determining optimal experimental settings. In the fast removal phase (final pH 2–4), organic matter as well as stirring rate had increasing importance indicating oxidation and release of metals at this stage. Understanding the influence of sediment properties is important for determining experimental settings in accordance with the phase of EDR. |
format |
Article in Journal/Newspaper |
author |
Pedersen, Kristine Bondo Lejon, Tore Jensen, Pernille E. Ottosen, Lisbeth M. |
author_facet |
Pedersen, Kristine Bondo Lejon, Tore Jensen, Pernille E. Ottosen, Lisbeth M. |
author_sort |
Pedersen, Kristine Bondo |
title |
The influence of sediment properties and experimental variables on the efficiency of electrodialytic removal of metals from sediment |
title_short |
The influence of sediment properties and experimental variables on the efficiency of electrodialytic removal of metals from sediment |
title_full |
The influence of sediment properties and experimental variables on the efficiency of electrodialytic removal of metals from sediment |
title_fullStr |
The influence of sediment properties and experimental variables on the efficiency of electrodialytic removal of metals from sediment |
title_full_unstemmed |
The influence of sediment properties and experimental variables on the efficiency of electrodialytic removal of metals from sediment |
title_sort |
influence of sediment properties and experimental variables on the efficiency of electrodialytic removal of metals from sediment |
publisher |
Elsevier |
publishDate |
2017 |
url |
https://hdl.handle.net/10037/13615 https://doi.org/10.1016/j.jece.2017.10.031 |
geographic |
Greenland Norway |
geographic_facet |
Greenland Norway |
genre |
Greenland |
genre_facet |
Greenland |
op_relation |
Journal of Environmental Chemical Engineering info:eu-repo/grantAgreement/RCN/NORDSATS/195160/Norway/Northern Environmental Waste Management// Pedersen, K.B., Lejon, T.S., Jensen, P.E. & Ottosen, L.M. (2017). The influence of sediment properties and experimental variables on the efficiency of electrodialytic removal of metals from sediment. Journal of Environmental Chemical Engineering, 5(6), 5312-5321. https://doi.org/10.1016/j.jece.2017.10.031 FRIDAID 1528677 doi:10.1016/j.jece.2017.10.031 2213-3437 https://hdl.handle.net/10037/13615 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1016/j.jece.2017.10.031 |
container_title |
Journal of Environmental Chemical Engineering |
container_volume |
5 |
container_issue |
6 |
container_start_page |
5312 |
op_container_end_page |
5321 |
_version_ |
1766019452462170112 |