Long-term impact of biochar on the immobilisation of nickel (II) and zinc (II) and the revegetation of a contaminated site.
A field remediation treatment was carried out to examine the long-term effect of biochar on the immobilisation of metals and the revegetation of a contaminated site in Castleford, UK. The extracted concentrations of nickel (Ni) (II) and zinc (Zn) (II) in the carbonic acid leaching tests were reduced...
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ftunivcam:oai:www.repository.cam.ac.uk:1810/251418 2024-02-04T09:59:35+01:00 Long-term impact of biochar on the immobilisation of nickel (II) and zinc (II) and the revegetation of a contaminated site. Shen, Zhengtao Som, Amelia Md Wang, Fei Jin, Fei McMillan, Oliver Al-Tabbaa, Abir 2016-01-15 application/pdf https://www.repository.cam.ac.uk/handle/1810/251418 English eng eng Elsevier BV http://dx.doi.org/10.1016/j.scitotenv.2015.10.057 Sci Total Environ https://www.repository.cam.ac.uk/handle/1810/251418 Attribution-NonCommercial-NoDerivs 2.0 UK: England & Wales http://creativecommons.org/licenses/by-nc-nd/2.0/uk/ Biochar Heavy metal Leaching Revegetation Sequential extraction Soil remediation Charcoal Environmental Restoration and Remediation Nickel Soil Pollutants Zinc Article 2016 ftunivcam 2024-01-11T23:21:01Z A field remediation treatment was carried out to examine the long-term effect of biochar on the immobilisation of metals and the revegetation of a contaminated site in Castleford, UK. The extracted concentrations of nickel (Ni) (II) and zinc (Zn) (II) in the carbonic acid leaching tests were reduced by 83-98% over three years. The extracted Ni (II) and Zn (II) concentrations three years after the treatment were comparable to a cement-based treatment study carried out in a parallel manner on the same site. The sequential extraction results indicated that biochar addition (0.5-2%) increased the residue fractions of Ni (II) (from 51% to 61-66%) and Zn (II) (from 7% to 27-35%) in the soils through competitive sorption, which may have resulted in the reduction of leachabilities of Ni (II) (from 0.35% to 0.12-0.15%) and Zn (II) (from 0.12% to 0.01%) in the plots with biochar compared with that without biochar three years after the treatment. The germination of grass in the plots on site failed. Further laboratory pot study suggested that larger amounts of biochar (5% or more) and compost (5% or more) were needed for the success of revegetation on this site. This study suggests the effectiveness and potential of biochar application in immobilising heavy metals in contaminated site in the long term. This is the author accepted manuscript. The final version is available from Elsevier via http://dx.doi.org/10.1016/j.scitotenv.2015.10.057 Article in Journal/Newspaper Carbonic acid Apollo - University of Cambridge Repository |
institution |
Open Polar |
collection |
Apollo - University of Cambridge Repository |
op_collection_id |
ftunivcam |
language |
English |
topic |
Biochar Heavy metal Leaching Revegetation Sequential extraction Soil remediation Charcoal Environmental Restoration and Remediation Nickel Soil Pollutants Zinc |
spellingShingle |
Biochar Heavy metal Leaching Revegetation Sequential extraction Soil remediation Charcoal Environmental Restoration and Remediation Nickel Soil Pollutants Zinc Shen, Zhengtao Som, Amelia Md Wang, Fei Jin, Fei McMillan, Oliver Al-Tabbaa, Abir Long-term impact of biochar on the immobilisation of nickel (II) and zinc (II) and the revegetation of a contaminated site. |
topic_facet |
Biochar Heavy metal Leaching Revegetation Sequential extraction Soil remediation Charcoal Environmental Restoration and Remediation Nickel Soil Pollutants Zinc |
description |
A field remediation treatment was carried out to examine the long-term effect of biochar on the immobilisation of metals and the revegetation of a contaminated site in Castleford, UK. The extracted concentrations of nickel (Ni) (II) and zinc (Zn) (II) in the carbonic acid leaching tests were reduced by 83-98% over three years. The extracted Ni (II) and Zn (II) concentrations three years after the treatment were comparable to a cement-based treatment study carried out in a parallel manner on the same site. The sequential extraction results indicated that biochar addition (0.5-2%) increased the residue fractions of Ni (II) (from 51% to 61-66%) and Zn (II) (from 7% to 27-35%) in the soils through competitive sorption, which may have resulted in the reduction of leachabilities of Ni (II) (from 0.35% to 0.12-0.15%) and Zn (II) (from 0.12% to 0.01%) in the plots with biochar compared with that without biochar three years after the treatment. The germination of grass in the plots on site failed. Further laboratory pot study suggested that larger amounts of biochar (5% or more) and compost (5% or more) were needed for the success of revegetation on this site. This study suggests the effectiveness and potential of biochar application in immobilising heavy metals in contaminated site in the long term. This is the author accepted manuscript. The final version is available from Elsevier via http://dx.doi.org/10.1016/j.scitotenv.2015.10.057 |
format |
Article in Journal/Newspaper |
author |
Shen, Zhengtao Som, Amelia Md Wang, Fei Jin, Fei McMillan, Oliver Al-Tabbaa, Abir |
author_facet |
Shen, Zhengtao Som, Amelia Md Wang, Fei Jin, Fei McMillan, Oliver Al-Tabbaa, Abir |
author_sort |
Shen, Zhengtao |
title |
Long-term impact of biochar on the immobilisation of nickel (II) and zinc (II) and the revegetation of a contaminated site. |
title_short |
Long-term impact of biochar on the immobilisation of nickel (II) and zinc (II) and the revegetation of a contaminated site. |
title_full |
Long-term impact of biochar on the immobilisation of nickel (II) and zinc (II) and the revegetation of a contaminated site. |
title_fullStr |
Long-term impact of biochar on the immobilisation of nickel (II) and zinc (II) and the revegetation of a contaminated site. |
title_full_unstemmed |
Long-term impact of biochar on the immobilisation of nickel (II) and zinc (II) and the revegetation of a contaminated site. |
title_sort |
long-term impact of biochar on the immobilisation of nickel (ii) and zinc (ii) and the revegetation of a contaminated site. |
publisher |
Elsevier BV |
publishDate |
2016 |
url |
https://www.repository.cam.ac.uk/handle/1810/251418 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_relation |
https://www.repository.cam.ac.uk/handle/1810/251418 |
op_rights |
Attribution-NonCommercial-NoDerivs 2.0 UK: England & Wales http://creativecommons.org/licenses/by-nc-nd/2.0/uk/ |
_version_ |
1789964483382214656 |