Effect of planting and fertilization on lead partitioning in dredged sediment
Abstract Dredging has been practiced to remove sediment impacted by persistent contaminants, such as heavy metals. Of these metals, lead (Pb) is of particular concern due to its toxicity. Therefore, dredged sediment containing Pb requires further mitigation. One method for Pb mitigation is phytoreme...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Yang, Tianxue [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2017 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer Science+Business Media, LLC 2017 |
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| Übergeordnetes Werk: |
Enthalten in: Ecotoxicology - Springer US, 1992, 27(2017), 1 vom: 02. Nov., Seite 69-80 |
|---|---|
| Übergeordnetes Werk: |
volume:27 ; year:2017 ; number:1 ; day:02 ; month:11 ; pages:69-80 |
| Links: |
|---|
| DOI / URN: |
10.1007/s10646-017-1871-7 |
|---|
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OLC2027710744 |
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| 520 | |a Abstract Dredging has been practiced to remove sediment impacted by persistent contaminants, such as heavy metals. Of these metals, lead (Pb) is of particular concern due to its toxicity. Therefore, dredged sediment containing Pb requires further mitigation. One method for Pb mitigation is phytoremediation of dredged sediment. In this study, the partitioning of Pb in sediment during phytoremediation by willow (Salix integra) was assessed. The results showed that, in general, the bioavailable forms of Pb declined with increased application of the standard Hoagland nutrient solution, which appeared to enhance the Fe–Mn oxide fraction and residual inert fraction. In contrast, the addition of excess phosphorus decreased the bioavailable fractions of Pb. However, the bioavailable fractions of Pb increased with additional potassium addition. Planting Salix integra was shown to promote the stabilization of Pb in sediment and led to a transformation from bioavailable forms to non-bioavailable forms. The results suggest that planting Salix integra can remediate Pb-contaminated dredged sediment via Pb immobilization by the roots. During this process, the application of Hoagland nutrient solution and the application of nutrient solutions with excess phosphorus not only promote root growth of Salix integra which would reduce Pb bioavailability, but also further enhance the immobilization of Pb in contaminated sediment, likely through the formation of Pb-containing compounds with low bioavailability. | ||
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10.1007/s10646-017-1871-7 doi (DE-627)OLC2027710744 (DE-He213)s10646-017-1871-7-p DE-627 ger DE-627 rakwb eng 570 630 VZ 12 ssgn BIODIV DE-30 fid Yang, Tianxue verfasserin aut Effect of planting and fertilization on lead partitioning in dredged sediment 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2017 Abstract Dredging has been practiced to remove sediment impacted by persistent contaminants, such as heavy metals. Of these metals, lead (Pb) is of particular concern due to its toxicity. Therefore, dredged sediment containing Pb requires further mitigation. One method for Pb mitigation is phytoremediation of dredged sediment. In this study, the partitioning of Pb in sediment during phytoremediation by willow (Salix integra) was assessed. The results showed that, in general, the bioavailable forms of Pb declined with increased application of the standard Hoagland nutrient solution, which appeared to enhance the Fe–Mn oxide fraction and residual inert fraction. In contrast, the addition of excess phosphorus decreased the bioavailable fractions of Pb. However, the bioavailable fractions of Pb increased with additional potassium addition. Planting Salix integra was shown to promote the stabilization of Pb in sediment and led to a transformation from bioavailable forms to non-bioavailable forms. The results suggest that planting Salix integra can remediate Pb-contaminated dredged sediment via Pb immobilization by the roots. During this process, the application of Hoagland nutrient solution and the application of nutrient solutions with excess phosphorus not only promote root growth of Salix integra which would reduce Pb bioavailability, but also further enhance the immobilization of Pb in contaminated sediment, likely through the formation of Pb-containing compounds with low bioavailability. Inorganic nutrients Pb partitioning Willow Dredged sediment He, Qiang aut He, Chunguang (orcid)0000-0002-0545-6440 aut Wang, Aixia aut Sheng, Lianxi aut Enthalten in Ecotoxicology Springer US, 1992 27(2017), 1 vom: 02. Nov., Seite 69-80 (DE-627)165922230 (DE-600)34042-X (DE-576)055556809 0963-9292 nnns volume:27 year:2017 number:1 day:02 month:11 pages:69-80 https://doi.org/10.1007/s10646-017-1871-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-GEO GBV_ILN_70 GBV_ILN_252 GBV_ILN_4012 GBV_ILN_4219 AR 27 2017 1 02 11 69-80 |
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10.1007/s10646-017-1871-7 doi (DE-627)OLC2027710744 (DE-He213)s10646-017-1871-7-p DE-627 ger DE-627 rakwb eng 570 630 VZ 12 ssgn BIODIV DE-30 fid Yang, Tianxue verfasserin aut Effect of planting and fertilization on lead partitioning in dredged sediment 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2017 Abstract Dredging has been practiced to remove sediment impacted by persistent contaminants, such as heavy metals. Of these metals, lead (Pb) is of particular concern due to its toxicity. Therefore, dredged sediment containing Pb requires further mitigation. One method for Pb mitigation is phytoremediation of dredged sediment. In this study, the partitioning of Pb in sediment during phytoremediation by willow (Salix integra) was assessed. The results showed that, in general, the bioavailable forms of Pb declined with increased application of the standard Hoagland nutrient solution, which appeared to enhance the Fe–Mn oxide fraction and residual inert fraction. In contrast, the addition of excess phosphorus decreased the bioavailable fractions of Pb. However, the bioavailable fractions of Pb increased with additional potassium addition. Planting Salix integra was shown to promote the stabilization of Pb in sediment and led to a transformation from bioavailable forms to non-bioavailable forms. The results suggest that planting Salix integra can remediate Pb-contaminated dredged sediment via Pb immobilization by the roots. During this process, the application of Hoagland nutrient solution and the application of nutrient solutions with excess phosphorus not only promote root growth of Salix integra which would reduce Pb bioavailability, but also further enhance the immobilization of Pb in contaminated sediment, likely through the formation of Pb-containing compounds with low bioavailability. Inorganic nutrients Pb partitioning Willow Dredged sediment He, Qiang aut He, Chunguang (orcid)0000-0002-0545-6440 aut Wang, Aixia aut Sheng, Lianxi aut Enthalten in Ecotoxicology Springer US, 1992 27(2017), 1 vom: 02. Nov., Seite 69-80 (DE-627)165922230 (DE-600)34042-X (DE-576)055556809 0963-9292 nnns volume:27 year:2017 number:1 day:02 month:11 pages:69-80 https://doi.org/10.1007/s10646-017-1871-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-GEO GBV_ILN_70 GBV_ILN_252 GBV_ILN_4012 GBV_ILN_4219 AR 27 2017 1 02 11 69-80 |
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Effect of planting and fertilization on lead partitioning in dredged sediment |
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Effect of planting and fertilization on lead partitioning in dredged sediment |
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Yang, Tianxue |
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Ecotoxicology |
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Ecotoxicology |
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eng |
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2017 |
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69 |
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Yang, Tianxue He, Qiang He, Chunguang Wang, Aixia Sheng, Lianxi |
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Yang, Tianxue |
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10.1007/s10646-017-1871-7 |
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570 630 |
| title_sort |
effect of planting and fertilization on lead partitioning in dredged sediment |
| title_auth |
Effect of planting and fertilization on lead partitioning in dredged sediment |
| abstract |
Abstract Dredging has been practiced to remove sediment impacted by persistent contaminants, such as heavy metals. Of these metals, lead (Pb) is of particular concern due to its toxicity. Therefore, dredged sediment containing Pb requires further mitigation. One method for Pb mitigation is phytoremediation of dredged sediment. In this study, the partitioning of Pb in sediment during phytoremediation by willow (Salix integra) was assessed. The results showed that, in general, the bioavailable forms of Pb declined with increased application of the standard Hoagland nutrient solution, which appeared to enhance the Fe–Mn oxide fraction and residual inert fraction. In contrast, the addition of excess phosphorus decreased the bioavailable fractions of Pb. However, the bioavailable fractions of Pb increased with additional potassium addition. Planting Salix integra was shown to promote the stabilization of Pb in sediment and led to a transformation from bioavailable forms to non-bioavailable forms. The results suggest that planting Salix integra can remediate Pb-contaminated dredged sediment via Pb immobilization by the roots. During this process, the application of Hoagland nutrient solution and the application of nutrient solutions with excess phosphorus not only promote root growth of Salix integra which would reduce Pb bioavailability, but also further enhance the immobilization of Pb in contaminated sediment, likely through the formation of Pb-containing compounds with low bioavailability. © Springer Science+Business Media, LLC 2017 |
| abstractGer |
Abstract Dredging has been practiced to remove sediment impacted by persistent contaminants, such as heavy metals. Of these metals, lead (Pb) is of particular concern due to its toxicity. Therefore, dredged sediment containing Pb requires further mitigation. One method for Pb mitigation is phytoremediation of dredged sediment. In this study, the partitioning of Pb in sediment during phytoremediation by willow (Salix integra) was assessed. The results showed that, in general, the bioavailable forms of Pb declined with increased application of the standard Hoagland nutrient solution, which appeared to enhance the Fe–Mn oxide fraction and residual inert fraction. In contrast, the addition of excess phosphorus decreased the bioavailable fractions of Pb. However, the bioavailable fractions of Pb increased with additional potassium addition. Planting Salix integra was shown to promote the stabilization of Pb in sediment and led to a transformation from bioavailable forms to non-bioavailable forms. The results suggest that planting Salix integra can remediate Pb-contaminated dredged sediment via Pb immobilization by the roots. During this process, the application of Hoagland nutrient solution and the application of nutrient solutions with excess phosphorus not only promote root growth of Salix integra which would reduce Pb bioavailability, but also further enhance the immobilization of Pb in contaminated sediment, likely through the formation of Pb-containing compounds with low bioavailability. © Springer Science+Business Media, LLC 2017 |
| abstract_unstemmed |
Abstract Dredging has been practiced to remove sediment impacted by persistent contaminants, such as heavy metals. Of these metals, lead (Pb) is of particular concern due to its toxicity. Therefore, dredged sediment containing Pb requires further mitigation. One method for Pb mitigation is phytoremediation of dredged sediment. In this study, the partitioning of Pb in sediment during phytoremediation by willow (Salix integra) was assessed. The results showed that, in general, the bioavailable forms of Pb declined with increased application of the standard Hoagland nutrient solution, which appeared to enhance the Fe–Mn oxide fraction and residual inert fraction. In contrast, the addition of excess phosphorus decreased the bioavailable fractions of Pb. However, the bioavailable fractions of Pb increased with additional potassium addition. Planting Salix integra was shown to promote the stabilization of Pb in sediment and led to a transformation from bioavailable forms to non-bioavailable forms. The results suggest that planting Salix integra can remediate Pb-contaminated dredged sediment via Pb immobilization by the roots. During this process, the application of Hoagland nutrient solution and the application of nutrient solutions with excess phosphorus not only promote root growth of Salix integra which would reduce Pb bioavailability, but also further enhance the immobilization of Pb in contaminated sediment, likely through the formation of Pb-containing compounds with low bioavailability. © Springer Science+Business Media, LLC 2017 |
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Effect of planting and fertilization on lead partitioning in dredged sediment |
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He, Qiang He, Chunguang Wang, Aixia Sheng, Lianxi |
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