Vertical distribution of heavy metals in seawater column during IBA construction in land reclamation – re-exploration of a large-scale field trial experiment
Data from large-scale field trial experiments simulating the application of incineration bottom ash (IBA) for land reclamation were re-explored, to understand the spot-specific leaching characteristics and re-adsorption of heavy metals associated with various reclamation scenarios. Data showed that...
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| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Online Access: | https://hdl.handle.net/10356/105630 http://hdl.handle.net/10220/50241 http://dx.doi.org/10.1016/j.scitotenv.2018.10.407 |
| _version_ | 1824455566093713408 |
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| author | Yin, Ke Chan, Wei-Ping Dou, Xiaomin Lisak, Grzegorz Chang, Victor Wei-Chung |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Yin, Ke Chan, Wei-Ping Dou, Xiaomin Lisak, Grzegorz Chang, Victor Wei-Chung |
| author_sort | Yin, Ke |
| collection | NTU |
| description | Data from large-scale field trial experiments simulating the application of incineration bottom ash (IBA) for land reclamation were re-explored, to understand the spot-specific leaching characteristics and re-adsorption of heavy metals associated with various reclamation scenarios. Data showed that IBA leaching changed significantly as a function of seawater depth rather than time. The application of a chute had a minor effect on the total metal leached amounts; however, it would magnify the gradient of leaching concentrations across depths. Metal re-adsorption occurred within half an hour after IBA dumping, which however was significantly alleviated when a chute was applied. It may be ascribed to various degrees of contact with seawater of IBA, seawater movements and particle resuspension. Batch leaching tests from the laboratory under different L/S ratios were conducted as the references to “effective” leaching behaviors in the large-scale experiments, suggesting that the batch leaching test with the liquid to solid ratio = 10 provide a closer estimation of IBA leaching concentrations during land reclamation. As the current study took account of major field factors during land reclamation, including seawater depth (m), IBA loading (ton), IBA dropping method, particle dispersive area (m2), and settling time (min), these findings are valuable for the risk assessment of IBA utilization in land reclamation. |
| first_indexed | 2025-02-19T03:40:14Z |
| format | Journal Article |
| id | ntu-10356/105630 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:40:14Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/1056302019-12-10T13:56:53Z Vertical distribution of heavy metals in seawater column during IBA construction in land reclamation – re-exploration of a large-scale field trial experiment Yin, Ke Chan, Wei-Ping Dou, Xiaomin Lisak, Grzegorz Chang, Victor Wei-Chung School of Civil and Environmental Engineering Nanyang Environment and Water Research Institute Residues and Resource Reclamation Centre IBA Engineering::Environmental engineering Vertical Distribution Data from large-scale field trial experiments simulating the application of incineration bottom ash (IBA) for land reclamation were re-explored, to understand the spot-specific leaching characteristics and re-adsorption of heavy metals associated with various reclamation scenarios. Data showed that IBA leaching changed significantly as a function of seawater depth rather than time. The application of a chute had a minor effect on the total metal leached amounts; however, it would magnify the gradient of leaching concentrations across depths. Metal re-adsorption occurred within half an hour after IBA dumping, which however was significantly alleviated when a chute was applied. It may be ascribed to various degrees of contact with seawater of IBA, seawater movements and particle resuspension. Batch leaching tests from the laboratory under different L/S ratios were conducted as the references to “effective” leaching behaviors in the large-scale experiments, suggesting that the batch leaching test with the liquid to solid ratio = 10 provide a closer estimation of IBA leaching concentrations during land reclamation. As the current study took account of major field factors during land reclamation, including seawater depth (m), IBA loading (ton), IBA dropping method, particle dispersive area (m2), and settling time (min), these findings are valuable for the risk assessment of IBA utilization in land reclamation. Accepted version 2019-10-23T06:08:22Z 2019-12-06T21:54:53Z 2019-10-23T06:08:22Z 2019-12-06T21:54:53Z 2018 Journal Article Yin, K., Chan, W.-P., Dou, X., Lisak, G., & Chang, V. W.-C. (2019). Vertical distribution of heavy metals in seawater column during IBA construction in land reclamation – re-exploration of a large-scale field trial experiment. Science of The Total Environment, 654, 356-364. doi:10.1016/j.scitotenv.2018.10.407 0048-9697 https://hdl.handle.net/10356/105630 http://hdl.handle.net/10220/50241 http://dx.doi.org/10.1016/j.scitotenv.2018.10.407 en Science of The Total Environment © 2018 Elsevier B.V. All rights reserved. This paper was published in Science of The Total Environment and is made available with permission of Elsevier B.V. 32 p. application/pdf |
| spellingShingle | IBA Engineering::Environmental engineering Vertical Distribution Yin, Ke Chan, Wei-Ping Dou, Xiaomin Lisak, Grzegorz Chang, Victor Wei-Chung Vertical distribution of heavy metals in seawater column during IBA construction in land reclamation – re-exploration of a large-scale field trial experiment |
| title | Vertical distribution of heavy metals in seawater column during IBA construction in land reclamation – re-exploration of a large-scale field trial experiment |
| title_full | Vertical distribution of heavy metals in seawater column during IBA construction in land reclamation – re-exploration of a large-scale field trial experiment |
| title_fullStr | Vertical distribution of heavy metals in seawater column during IBA construction in land reclamation – re-exploration of a large-scale field trial experiment |
| title_full_unstemmed | Vertical distribution of heavy metals in seawater column during IBA construction in land reclamation – re-exploration of a large-scale field trial experiment |
| title_short | Vertical distribution of heavy metals in seawater column during IBA construction in land reclamation – re-exploration of a large-scale field trial experiment |
| title_sort | vertical distribution of heavy metals in seawater column during iba construction in land reclamation re exploration of a large scale field trial experiment |
| topic | IBA Engineering::Environmental engineering Vertical Distribution |
| url | https://hdl.handle.net/10356/105630 http://hdl.handle.net/10220/50241 http://dx.doi.org/10.1016/j.scitotenv.2018.10.407 |
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